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Pull pv_ops-xen into release branch
This commit is contained in:
Tony Luck
commit
22ca532a4d
183
Documentation/ia64/xen.txt
Normal file
183
Documentation/ia64/xen.txt
Normal file
@ -0,0 +1,183 @@
|
||||
Recipe for getting/building/running Xen/ia64 with pv_ops
|
||||
--------------------------------------------------------
|
||||
|
||||
This recipe describes how to get xen-ia64 source and build it,
|
||||
and run domU with pv_ops.
|
||||
|
||||
============
|
||||
Requirements
|
||||
============
|
||||
|
||||
- python
|
||||
- mercurial
|
||||
it (aka "hg") is an open-source source code
|
||||
management software. See the below.
|
||||
http://www.selenic.com/mercurial/wiki/
|
||||
- git
|
||||
- bridge-utils
|
||||
|
||||
=================================
|
||||
Getting and Building Xen and Dom0
|
||||
=================================
|
||||
|
||||
My environment is;
|
||||
Machine : Tiger4
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Domain0 OS : RHEL5
|
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DomainU OS : RHEL5
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||||
|
||||
1. Download source
|
||||
# hg clone http://xenbits.xensource.com/ext/ia64/xen-unstable.hg
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||||
# cd xen-unstable.hg
|
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# hg clone http://xenbits.xensource.com/ext/ia64/linux-2.6.18-xen.hg
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||||
|
||||
2. # make world
|
||||
|
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3. # make install-tools
|
||||
|
||||
4. copy kernels and xen
|
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# cp xen/xen.gz /boot/efi/efi/redhat/
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# cp build-linux-2.6.18-xen_ia64/vmlinux.gz \
|
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/boot/efi/efi/redhat/vmlinuz-2.6.18.8-xen
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||||
|
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5. make initrd for Dom0/DomU
|
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# make -C linux-2.6.18-xen.hg ARCH=ia64 modules_install \
|
||||
O=$(/bin/pwd)/build-linux-2.6.18-xen_ia64
|
||||
# mkinitrd -f /boot/efi/efi/redhat/initrd-2.6.18.8-xen.img \
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||||
2.6.18.8-xen --builtin mptspi --builtin mptbase \
|
||||
--builtin mptscsih --builtin uhci-hcd --builtin ohci-hcd \
|
||||
--builtin ehci-hcd
|
||||
|
||||
================================
|
||||
Making a disk image for guest OS
|
||||
================================
|
||||
|
||||
1. make file
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# dd if=/dev/zero of=/root/rhel5.img bs=1M seek=4096 count=0
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# mke2fs -F -j /root/rhel5.img
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# mount -o loop /root/rhel5.img /mnt
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# cp -ax /{dev,var,etc,usr,bin,sbin,lib} /mnt
|
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# mkdir /mnt/{root,proc,sys,home,tmp}
|
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|
||||
Note: You may miss some device files. If so, please create them
|
||||
with mknod. Or you can use tar instead of cp.
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||||
|
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2. modify DomU's fstab
|
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# vi /mnt/etc/fstab
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/dev/xvda1 / ext3 defaults 1 1
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none /dev/pts devpts gid=5,mode=620 0 0
|
||||
none /dev/shm tmpfs defaults 0 0
|
||||
none /proc proc defaults 0 0
|
||||
none /sys sysfs defaults 0 0
|
||||
|
||||
3. modify inittab
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set runlevel to 3 to avoid X trying to start
|
||||
# vi /mnt/etc/inittab
|
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id:3:initdefault:
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||||
Start a getty on the hvc0 console
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||||
X0:2345:respawn:/sbin/mingetty hvc0
|
||||
tty1-6 mingetty can be commented out
|
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|
||||
4. add hvc0 into /etc/securetty
|
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# vi /mnt/etc/securetty (add hvc0)
|
||||
|
||||
5. umount
|
||||
# umount /mnt
|
||||
|
||||
FYI, virt-manager can also make a disk image for guest OS.
|
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It's GUI tools and easy to make it.
|
||||
|
||||
==================
|
||||
Boot Xen & Domain0
|
||||
==================
|
||||
|
||||
1. replace elilo
|
||||
elilo of RHEL5 can boot Xen and Dom0.
|
||||
If you use old elilo (e.g RHEL4), please download from the below
|
||||
http://elilo.sourceforge.net/cgi-bin/blosxom
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and copy into /boot/efi/efi/redhat/
|
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# cp elilo-3.6-ia64.efi /boot/efi/efi/redhat/elilo.efi
|
||||
|
||||
2. modify elilo.conf (like the below)
|
||||
# vi /boot/efi/efi/redhat/elilo.conf
|
||||
prompt
|
||||
timeout=20
|
||||
default=xen
|
||||
relocatable
|
||||
|
||||
image=vmlinuz-2.6.18.8-xen
|
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label=xen
|
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vmm=xen.gz
|
||||
initrd=initrd-2.6.18.8-xen.img
|
||||
read-only
|
||||
append=" -- rhgb root=/dev/sda2"
|
||||
|
||||
The append options before "--" are for xen hypervisor,
|
||||
the options after "--" are for dom0.
|
||||
|
||||
FYI, your machine may need console options like
|
||||
"com1=19200,8n1 console=vga,com1". For example,
|
||||
append="com1=19200,8n1 console=vga,com1 -- rhgb console=tty0 \
|
||||
console=ttyS0 root=/dev/sda2"
|
||||
|
||||
=====================================
|
||||
Getting and Building domU with pv_ops
|
||||
=====================================
|
||||
|
||||
1. get pv_ops tree
|
||||
# git clone http://people.valinux.co.jp/~yamahata/xen-ia64/linux-2.6-xen-ia64.git/
|
||||
|
||||
2. git branch (if necessary)
|
||||
# cd linux-2.6-xen-ia64/
|
||||
# git checkout -b your_branch origin/xen-ia64-domu-minimal-2008may19
|
||||
(Note: The current branch is xen-ia64-domu-minimal-2008may19.
|
||||
But you would find the new branch. You can see with
|
||||
"git branch -r" to get the branch lists.
|
||||
http://people.valinux.co.jp/~yamahata/xen-ia64/for_eagl/linux-2.6-ia64-pv-ops.git/
|
||||
is also available. The tree is based on
|
||||
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 test)
|
||||
|
||||
|
||||
3. copy .config for pv_ops of domU
|
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# cp arch/ia64/configs/xen_domu_wip_defconfig .config
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|
||||
4. make kernel with pv_ops
|
||||
# make oldconfig
|
||||
# make
|
||||
|
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5. install the kernel and initrd
|
||||
# cp vmlinux.gz /boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU
|
||||
# make modules_install
|
||||
# mkinitrd -f /boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img \
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2.6.26-rc3xen-ia64-08941-g1b12161 --builtin mptspi \
|
||||
--builtin mptbase --builtin mptscsih --builtin uhci-hcd \
|
||||
--builtin ohci-hcd --builtin ehci-hcd
|
||||
|
||||
========================
|
||||
Boot DomainU with pv_ops
|
||||
========================
|
||||
|
||||
1. make config of DomU
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||||
# vi /etc/xen/rhel5
|
||||
kernel = "/boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU"
|
||||
ramdisk = "/boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img"
|
||||
vcpus = 1
|
||||
memory = 512
|
||||
name = "rhel5"
|
||||
disk = [ 'file:/root/rhel5.img,xvda1,w' ]
|
||||
root = "/dev/xvda1 ro"
|
||||
extra= "rhgb console=hvc0"
|
||||
|
||||
2. After boot xen and dom0, start xend
|
||||
# /etc/init.d/xend start
|
||||
( In the debugging case, # XEND_DEBUG=1 xend trace_start )
|
||||
|
||||
3. start domU
|
||||
# xm create -c rhel5
|
||||
|
||||
=========
|
||||
Reference
|
||||
=========
|
||||
- Wiki of Xen/IA64 upstream merge
|
||||
http://wiki.xensource.com/xenwiki/XenIA64/UpstreamMerge
|
||||
|
||||
Written by Akio Takebe <takebe_akio@jp.fujitsu.com> on 28 May 2008
|
||||
@ -109,6 +109,33 @@ config AUDIT_ARCH
|
||||
bool
|
||||
default y
|
||||
|
||||
menuconfig PARAVIRT_GUEST
|
||||
bool "Paravirtualized guest support"
|
||||
help
|
||||
Say Y here to get to see options related to running Linux under
|
||||
various hypervisors. This option alone does not add any kernel code.
|
||||
|
||||
If you say N, all options in this submenu will be skipped and disabled.
|
||||
|
||||
if PARAVIRT_GUEST
|
||||
|
||||
config PARAVIRT
|
||||
bool "Enable paravirtualization code"
|
||||
depends on PARAVIRT_GUEST
|
||||
default y
|
||||
bool
|
||||
default y
|
||||
help
|
||||
This changes the kernel so it can modify itself when it is run
|
||||
under a hypervisor, potentially improving performance significantly
|
||||
over full virtualization. However, when run without a hypervisor
|
||||
the kernel is theoretically slower and slightly larger.
|
||||
|
||||
|
||||
source "arch/ia64/xen/Kconfig"
|
||||
|
||||
endif
|
||||
|
||||
choice
|
||||
prompt "System type"
|
||||
default IA64_GENERIC
|
||||
@ -130,6 +157,7 @@ config IA64_GENERIC
|
||||
SGI-SN2 For SGI Altix systems
|
||||
SGI-UV For SGI UV systems
|
||||
Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
|
||||
Xen-domU For xen domU system
|
||||
|
||||
If you don't know what to do, choose "generic".
|
||||
|
||||
@ -180,6 +208,10 @@ config IA64_HP_SIM
|
||||
bool "Ski-simulator"
|
||||
select SWIOTLB
|
||||
|
||||
config IA64_XEN_GUEST
|
||||
bool "Xen guest"
|
||||
depends on XEN
|
||||
|
||||
endchoice
|
||||
|
||||
choice
|
||||
|
||||
@ -56,9 +56,11 @@ core-$(CONFIG_IA64_DIG) += arch/ia64/dig/
|
||||
core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/
|
||||
core-$(CONFIG_IA64_HP_ZX1) += arch/ia64/dig/
|
||||
core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/
|
||||
core-$(CONFIG_IA64_XEN_GUEST) += arch/ia64/dig/
|
||||
core-$(CONFIG_IA64_SGI_SN2) += arch/ia64/sn/
|
||||
core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/
|
||||
core-$(CONFIG_KVM) += arch/ia64/kvm/
|
||||
core-$(CONFIG_XEN) += arch/ia64/xen/
|
||||
|
||||
drivers-$(CONFIG_PCI) += arch/ia64/pci/
|
||||
drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/
|
||||
|
||||
@ -20,4 +20,13 @@
|
||||
*/
|
||||
#define __IA64_BREAK_SYSCALL 0x100000
|
||||
|
||||
/*
|
||||
* Xen specific break numbers:
|
||||
*/
|
||||
#define __IA64_XEN_HYPERCALL 0x1000
|
||||
/* [__IA64_XEN_HYPERPRIVOP_START, __IA64_XEN_HYPERPRIVOP_MAX] is used
|
||||
for xen hyperprivops */
|
||||
#define __IA64_XEN_HYPERPRIVOP_START 0x1
|
||||
#define __IA64_XEN_HYPERPRIVOP_MAX 0x1a
|
||||
|
||||
#endif /* _ASM_IA64_BREAK_H */
|
||||
|
||||
@ -128,6 +128,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
|
||||
# include <asm/machvec_sn2.h>
|
||||
# elif defined (CONFIG_IA64_SGI_UV)
|
||||
# include <asm/machvec_uv.h>
|
||||
# elif defined (CONFIG_IA64_XEN_GUEST)
|
||||
# include <asm/machvec_xen.h>
|
||||
# elif defined (CONFIG_IA64_GENERIC)
|
||||
|
||||
# ifdef MACHVEC_PLATFORM_HEADER
|
||||
|
||||
22
arch/ia64/include/asm/machvec_xen.h
Normal file
22
arch/ia64/include/asm/machvec_xen.h
Normal file
@ -0,0 +1,22 @@
|
||||
#ifndef _ASM_IA64_MACHVEC_XEN_h
|
||||
#define _ASM_IA64_MACHVEC_XEN_h
|
||||
|
||||
extern ia64_mv_setup_t dig_setup;
|
||||
extern ia64_mv_cpu_init_t xen_cpu_init;
|
||||
extern ia64_mv_irq_init_t xen_irq_init;
|
||||
extern ia64_mv_send_ipi_t xen_platform_send_ipi;
|
||||
|
||||
/*
|
||||
* This stuff has dual use!
|
||||
*
|
||||
* For a generic kernel, the macros are used to initialize the
|
||||
* platform's machvec structure. When compiling a non-generic kernel,
|
||||
* the macros are used directly.
|
||||
*/
|
||||
#define platform_name "xen"
|
||||
#define platform_setup dig_setup
|
||||
#define platform_cpu_init xen_cpu_init
|
||||
#define platform_irq_init xen_irq_init
|
||||
#define platform_send_ipi xen_platform_send_ipi
|
||||
|
||||
#endif /* _ASM_IA64_MACHVEC_XEN_h */
|
||||
@ -18,10 +18,11 @@
|
||||
* - crash dumping code reserved region
|
||||
* - Kernel memory map built from EFI memory map
|
||||
* - ELF core header
|
||||
* - xen start info if CONFIG_XEN
|
||||
*
|
||||
* More could be added if necessary
|
||||
*/
|
||||
#define IA64_MAX_RSVD_REGIONS 8
|
||||
#define IA64_MAX_RSVD_REGIONS 9
|
||||
|
||||
struct rsvd_region {
|
||||
unsigned long start; /* virtual address of beginning of element */
|
||||
|
||||
@ -36,8 +36,13 @@
|
||||
;; \
|
||||
movl clob = PARAVIRT_POISON; \
|
||||
;;
|
||||
# define CLOBBER_PRED(pred_clob) \
|
||||
;; \
|
||||
cmp.eq pred_clob, p0 = r0, r0 \
|
||||
;;
|
||||
#else
|
||||
# define CLOBBER(clob) /* nothing */
|
||||
# define CLOBBER(clob) /* nothing */
|
||||
# define CLOBBER_PRED(pred_clob) /* nothing */
|
||||
#endif
|
||||
|
||||
#define MOV_FROM_IFA(reg) \
|
||||
@ -136,7 +141,8 @@
|
||||
|
||||
#define SSM_PSR_I(pred, pred_clob, clob) \
|
||||
(pred) ssm psr.i \
|
||||
CLOBBER(clob)
|
||||
CLOBBER(clob) \
|
||||
CLOBBER_PRED(pred_clob)
|
||||
|
||||
#define RSM_PSR_I(pred, clob0, clob1) \
|
||||
(pred) rsm psr.i \
|
||||
|
||||
263
arch/ia64/include/asm/native/pvchk_inst.h
Normal file
263
arch/ia64/include/asm/native/pvchk_inst.h
Normal file
@ -0,0 +1,263 @@
|
||||
#ifndef _ASM_NATIVE_PVCHK_INST_H
|
||||
#define _ASM_NATIVE_PVCHK_INST_H
|
||||
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/native/pvchk_inst.h
|
||||
* Checker for paravirtualizations of privileged operations.
|
||||
*
|
||||
* Copyright (C) 2005 Hewlett-Packard Co
|
||||
* Dan Magenheimer <dan.magenheimer@hp.com>
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
/**********************************************
|
||||
* Instructions paravirtualized for correctness
|
||||
**********************************************/
|
||||
|
||||
/* "fc" and "thash" are privilege-sensitive instructions, meaning they
|
||||
* may have different semantics depending on whether they are executed
|
||||
* at PL0 vs PL!=0. When paravirtualized, these instructions mustn't
|
||||
* be allowed to execute directly, lest incorrect semantics result.
|
||||
*/
|
||||
|
||||
#define fc .error "fc should not be used directly."
|
||||
#define thash .error "thash should not be used directly."
|
||||
|
||||
/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag"
|
||||
* is not currently used (though it may be in a long-format VHPT system!)
|
||||
* and the semantics of cover only change if psr.ic is off which is very
|
||||
* rare (and currently non-existent outside of assembly code
|
||||
*/
|
||||
#define ttag .error "ttag should not be used directly."
|
||||
#define cover .error "cover should not be used directly."
|
||||
|
||||
/* There are also privilege-sensitive registers. These registers are
|
||||
* readable at any privilege level but only writable at PL0.
|
||||
*/
|
||||
#define cpuid .error "cpuid should not be used directly."
|
||||
#define pmd .error "pmd should not be used directly."
|
||||
|
||||
/*
|
||||
* mov ar.eflag =
|
||||
* mov = ar.eflag
|
||||
*/
|
||||
|
||||
/**********************************************
|
||||
* Instructions paravirtualized for performance
|
||||
**********************************************/
|
||||
/*
|
||||
* Those instructions include '.' which can't be handled by cpp.
|
||||
* or can't be handled by cpp easily.
|
||||
* They are handled by sed instead of cpp.
|
||||
*/
|
||||
|
||||
/* for .S
|
||||
* itc.i
|
||||
* itc.d
|
||||
*
|
||||
* bsw.0
|
||||
* bsw.1
|
||||
*
|
||||
* ssm psr.ic | PSR_DEFAULT_BITS
|
||||
* ssm psr.ic
|
||||
* rsm psr.ic
|
||||
* ssm psr.i
|
||||
* rsm psr.i
|
||||
* rsm psr.i | psr.ic
|
||||
* rsm psr.dt
|
||||
* ssm psr.dt
|
||||
*
|
||||
* mov = cr.ifa
|
||||
* mov = cr.itir
|
||||
* mov = cr.isr
|
||||
* mov = cr.iha
|
||||
* mov = cr.ipsr
|
||||
* mov = cr.iim
|
||||
* mov = cr.iip
|
||||
* mov = cr.ivr
|
||||
* mov = psr
|
||||
*
|
||||
* mov cr.ifa =
|
||||
* mov cr.itir =
|
||||
* mov cr.iha =
|
||||
* mov cr.ipsr =
|
||||
* mov cr.ifs =
|
||||
* mov cr.iip =
|
||||
* mov cr.kr =
|
||||
*/
|
||||
|
||||
/* for intrinsics
|
||||
* ssm psr.i
|
||||
* rsm psr.i
|
||||
* mov = psr
|
||||
* mov = ivr
|
||||
* mov = tpr
|
||||
* mov cr.itm =
|
||||
* mov eoi =
|
||||
* mov rr[] =
|
||||
* mov = rr[]
|
||||
* mov = kr
|
||||
* mov kr =
|
||||
* ptc.ga
|
||||
*/
|
||||
|
||||
/*************************************************************
|
||||
* define paravirtualized instrcution macros as nop to ingore.
|
||||
* and check whether arguments are appropriate.
|
||||
*************************************************************/
|
||||
|
||||
/* check whether reg is a regular register */
|
||||
.macro is_rreg_in reg
|
||||
.ifc "\reg", "r0"
|
||||
nop 0
|
||||
.exitm
|
||||
.endif
|
||||
;;
|
||||
mov \reg = r0
|
||||
;;
|
||||
.endm
|
||||
#define IS_RREG_IN(reg) is_rreg_in reg ;
|
||||
|
||||
#define IS_RREG_OUT(reg) \
|
||||
;; \
|
||||
mov reg = r0 \
|
||||
;;
|
||||
|
||||
#define IS_RREG_CLOB(reg) IS_RREG_OUT(reg)
|
||||
|
||||
/* check whether pred is a predicate register */
|
||||
#define IS_PRED_IN(pred) \
|
||||
;; \
|
||||
(pred) nop 0 \
|
||||
;;
|
||||
|
||||
#define IS_PRED_OUT(pred) \
|
||||
;; \
|
||||
cmp.eq pred, p0 = r0, r0 \
|
||||
;;
|
||||
|
||||
#define IS_PRED_CLOB(pred) IS_PRED_OUT(pred)
|
||||
|
||||
|
||||
#define DO_SAVE_MIN(__COVER, SAVE_IFS, EXTRA, WORKAROUND) \
|
||||
nop 0
|
||||
#define MOV_FROM_IFA(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_ITIR(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_ISR(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_IHA(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_IPSR(pred, reg) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_IIM(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_IIP(reg) \
|
||||
IS_RREG_OUT(reg)
|
||||
#define MOV_FROM_IVR(reg, clob) \
|
||||
IS_RREG_OUT(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_FROM_PSR(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_OUT(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_IFA(reg, clob) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_ITIR(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_IHA(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_IPSR(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_IFS(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_IIP(reg, clob) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define MOV_TO_KR(kr, reg, clob0, clob1) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1)
|
||||
#define ITC_I(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define ITC_D(pred, reg, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define ITC_I_AND_D(pred_i, pred_d, reg, clob) \
|
||||
IS_PRED_IN(pred_i) \
|
||||
IS_PRED_IN(pred_d) \
|
||||
IS_RREG_IN(reg) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define THASH(pred, reg0, reg1, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_OUT(reg0) \
|
||||
IS_RREG_IN(reg1) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1)
|
||||
#define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1)
|
||||
#define RSM_PSR_IC(clob) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define SSM_PSR_I(pred, pred_clob, clob) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_PRED_CLOB(pred_clob) \
|
||||
IS_RREG_CLOB(clob)
|
||||
#define RSM_PSR_I(pred, clob0, clob1) \
|
||||
IS_PRED_IN(pred) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1)
|
||||
#define RSM_PSR_I_IC(clob0, clob1, clob2) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1) \
|
||||
IS_RREG_CLOB(clob2)
|
||||
#define RSM_PSR_DT \
|
||||
nop 0
|
||||
#define SSM_PSR_DT_AND_SRLZ_I \
|
||||
nop 0
|
||||
#define BSW_0(clob0, clob1, clob2) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1) \
|
||||
IS_RREG_CLOB(clob2)
|
||||
#define BSW_1(clob0, clob1) \
|
||||
IS_RREG_CLOB(clob0) \
|
||||
IS_RREG_CLOB(clob1)
|
||||
#define COVER \
|
||||
nop 0
|
||||
#define RFI \
|
||||
br.ret.sptk.many rp /* defining nop causes dependency error */
|
||||
|
||||
#endif /* _ASM_NATIVE_PVCHK_INST_H */
|
||||
@ -117,7 +117,7 @@ static inline void paravirt_post_smp_prepare_boot_cpu(void)
|
||||
struct pv_iosapic_ops {
|
||||
void (*pcat_compat_init)(void);
|
||||
|
||||
struct irq_chip *(*get_irq_chip)(unsigned long trigger);
|
||||
struct irq_chip *(*__get_irq_chip)(unsigned long trigger);
|
||||
|
||||
unsigned int (*__read)(char __iomem *iosapic, unsigned int reg);
|
||||
void (*__write)(char __iomem *iosapic, unsigned int reg, u32 val);
|
||||
@ -135,7 +135,7 @@ iosapic_pcat_compat_init(void)
|
||||
static inline struct irq_chip*
|
||||
iosapic_get_irq_chip(unsigned long trigger)
|
||||
{
|
||||
return pv_iosapic_ops.get_irq_chip(trigger);
|
||||
return pv_iosapic_ops.__get_irq_chip(trigger);
|
||||
}
|
||||
|
||||
static inline unsigned int
|
||||
|
||||
48
arch/ia64/include/asm/pvclock-abi.h
Normal file
48
arch/ia64/include/asm/pvclock-abi.h
Normal file
@ -0,0 +1,48 @@
|
||||
/*
|
||||
* same structure to x86's
|
||||
* Hopefully asm-x86/pvclock-abi.h would be moved to somewhere more generic.
|
||||
* For now, define same duplicated definitions.
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64__PVCLOCK_ABI_H
|
||||
#define _ASM_IA64__PVCLOCK_ABI_H
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/*
|
||||
* These structs MUST NOT be changed.
|
||||
* They are the ABI between hypervisor and guest OS.
|
||||
* Both Xen and KVM are using this.
|
||||
*
|
||||
* pvclock_vcpu_time_info holds the system time and the tsc timestamp
|
||||
* of the last update. So the guest can use the tsc delta to get a
|
||||
* more precise system time. There is one per virtual cpu.
|
||||
*
|
||||
* pvclock_wall_clock references the point in time when the system
|
||||
* time was zero (usually boot time), thus the guest calculates the
|
||||
* current wall clock by adding the system time.
|
||||
*
|
||||
* Protocol for the "version" fields is: hypervisor raises it (making
|
||||
* it uneven) before it starts updating the fields and raises it again
|
||||
* (making it even) when it is done. Thus the guest can make sure the
|
||||
* time values it got are consistent by checking the version before
|
||||
* and after reading them.
|
||||
*/
|
||||
|
||||
struct pvclock_vcpu_time_info {
|
||||
u32 version;
|
||||
u32 pad0;
|
||||
u64 tsc_timestamp;
|
||||
u64 system_time;
|
||||
u32 tsc_to_system_mul;
|
||||
s8 tsc_shift;
|
||||
u8 pad[3];
|
||||
} __attribute__((__packed__)); /* 32 bytes */
|
||||
|
||||
struct pvclock_wall_clock {
|
||||
u32 version;
|
||||
u32 sec;
|
||||
u32 nsec;
|
||||
} __attribute__((__packed__));
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* _ASM_IA64__PVCLOCK_ABI_H */
|
||||
51
arch/ia64/include/asm/sync_bitops.h
Normal file
51
arch/ia64/include/asm/sync_bitops.h
Normal file
@ -0,0 +1,51 @@
|
||||
#ifndef _ASM_IA64_SYNC_BITOPS_H
|
||||
#define _ASM_IA64_SYNC_BITOPS_H
|
||||
|
||||
/*
|
||||
* Copyright (C) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
*
|
||||
* Based on synch_bitops.h which Dan Magenhaimer wrote.
|
||||
*
|
||||
* bit operations which provide guaranteed strong synchronisation
|
||||
* when communicating with Xen or other guest OSes running on other CPUs.
|
||||
*/
|
||||
|
||||
static inline void sync_set_bit(int nr, volatile void *addr)
|
||||
{
|
||||
set_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline void sync_clear_bit(int nr, volatile void *addr)
|
||||
{
|
||||
clear_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline void sync_change_bit(int nr, volatile void *addr)
|
||||
{
|
||||
change_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline int sync_test_and_set_bit(int nr, volatile void *addr)
|
||||
{
|
||||
return test_and_set_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline int sync_test_and_clear_bit(int nr, volatile void *addr)
|
||||
{
|
||||
return test_and_clear_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline int sync_test_and_change_bit(int nr, volatile void *addr)
|
||||
{
|
||||
return test_and_change_bit(nr, addr);
|
||||
}
|
||||
|
||||
static inline int sync_test_bit(int nr, const volatile void *addr)
|
||||
{
|
||||
return test_bit(nr, addr);
|
||||
}
|
||||
|
||||
#define sync_cmpxchg(ptr, old, new) \
|
||||
((__typeof__(*(ptr)))cmpxchg_acq((ptr), (old), (new)))
|
||||
|
||||
#endif /* _ASM_IA64_SYNC_BITOPS_H */
|
||||
@ -39,4 +39,6 @@ get_cycles (void)
|
||||
return ret;
|
||||
}
|
||||
|
||||
extern void ia64_cpu_local_tick (void);
|
||||
|
||||
#endif /* _ASM_IA64_TIMEX_H */
|
||||
|
||||
50
arch/ia64/include/asm/xen/events.h
Normal file
50
arch/ia64/include/asm/xen/events.h
Normal file
@ -0,0 +1,50 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/xen/events.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
#ifndef _ASM_IA64_XEN_EVENTS_H
|
||||
#define _ASM_IA64_XEN_EVENTS_H
|
||||
|
||||
enum ipi_vector {
|
||||
XEN_RESCHEDULE_VECTOR,
|
||||
XEN_IPI_VECTOR,
|
||||
XEN_CMCP_VECTOR,
|
||||
XEN_CPEP_VECTOR,
|
||||
|
||||
XEN_NR_IPIS,
|
||||
};
|
||||
|
||||
static inline int xen_irqs_disabled(struct pt_regs *regs)
|
||||
{
|
||||
return !(ia64_psr(regs)->i);
|
||||
}
|
||||
|
||||
static inline void xen_do_IRQ(int irq, struct pt_regs *regs)
|
||||
{
|
||||
struct pt_regs *old_regs;
|
||||
old_regs = set_irq_regs(regs);
|
||||
irq_enter();
|
||||
__do_IRQ(irq);
|
||||
irq_exit();
|
||||
set_irq_regs(old_regs);
|
||||
}
|
||||
#define irq_ctx_init(cpu) do { } while (0)
|
||||
|
||||
#endif /* _ASM_IA64_XEN_EVENTS_H */
|
||||
29
arch/ia64/include/asm/xen/grant_table.h
Normal file
29
arch/ia64/include/asm/xen/grant_table.h
Normal file
@ -0,0 +1,29 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/xen/grant_table.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_GRANT_TABLE_H
|
||||
#define _ASM_IA64_XEN_GRANT_TABLE_H
|
||||
|
||||
struct vm_struct *xen_alloc_vm_area(unsigned long size);
|
||||
void xen_free_vm_area(struct vm_struct *area);
|
||||
|
||||
#endif /* _ASM_IA64_XEN_GRANT_TABLE_H */
|
||||
265
arch/ia64/include/asm/xen/hypercall.h
Normal file
265
arch/ia64/include/asm/xen/hypercall.h
Normal file
@ -0,0 +1,265 @@
|
||||
/******************************************************************************
|
||||
* hypercall.h
|
||||
*
|
||||
* Linux-specific hypervisor handling.
|
||||
*
|
||||
* Copyright (c) 2002-2004, K A Fraser
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License version 2
|
||||
* as published by the Free Software Foundation; or, when distributed
|
||||
* separately from the Linux kernel or incorporated into other
|
||||
* software packages, subject to the following license:
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this source file (the "Software"), to deal in the Software without
|
||||
* restriction, including without limitation the rights to use, copy, modify,
|
||||
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||
* IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_HYPERCALL_H
|
||||
#define _ASM_IA64_XEN_HYPERCALL_H
|
||||
|
||||
#include <xen/interface/xen.h>
|
||||
#include <xen/interface/physdev.h>
|
||||
#include <xen/interface/sched.h>
|
||||
#include <asm/xen/xcom_hcall.h>
|
||||
struct xencomm_handle;
|
||||
extern unsigned long __hypercall(unsigned long a1, unsigned long a2,
|
||||
unsigned long a3, unsigned long a4,
|
||||
unsigned long a5, unsigned long cmd);
|
||||
|
||||
/*
|
||||
* Assembler stubs for hyper-calls.
|
||||
*/
|
||||
|
||||
#define _hypercall0(type, name) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall(0, 0, 0, 0, 0, __HYPERVISOR_##name);\
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
#define _hypercall1(type, name, a1) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall((unsigned long)a1, \
|
||||
0, 0, 0, 0, __HYPERVISOR_##name); \
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
#define _hypercall2(type, name, a1, a2) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall((unsigned long)a1, \
|
||||
(unsigned long)a2, \
|
||||
0, 0, 0, __HYPERVISOR_##name); \
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
#define _hypercall3(type, name, a1, a2, a3) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall((unsigned long)a1, \
|
||||
(unsigned long)a2, \
|
||||
(unsigned long)a3, \
|
||||
0, 0, __HYPERVISOR_##name); \
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
#define _hypercall4(type, name, a1, a2, a3, a4) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall((unsigned long)a1, \
|
||||
(unsigned long)a2, \
|
||||
(unsigned long)a3, \
|
||||
(unsigned long)a4, \
|
||||
0, __HYPERVISOR_##name); \
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
|
||||
({ \
|
||||
long __res; \
|
||||
__res = __hypercall((unsigned long)a1, \
|
||||
(unsigned long)a2, \
|
||||
(unsigned long)a3, \
|
||||
(unsigned long)a4, \
|
||||
(unsigned long)a5, \
|
||||
__HYPERVISOR_##name); \
|
||||
(type)__res; \
|
||||
})
|
||||
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, sched_op_new, cmd, arg);
|
||||
}
|
||||
|
||||
static inline long
|
||||
HYPERVISOR_set_timer_op(u64 timeout)
|
||||
{
|
||||
unsigned long timeout_hi = (unsigned long)(timeout >> 32);
|
||||
unsigned long timeout_lo = (unsigned long)timeout;
|
||||
return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_multicall(struct xencomm_handle *call_list,
|
||||
int nr_calls)
|
||||
{
|
||||
return _hypercall2(int, multicall, call_list, nr_calls);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_memory_op(unsigned int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, memory_op, cmd, arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_event_channel_op(int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, event_channel_op, cmd, arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_xen_version(int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, xen_version, cmd, arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_console_io(int cmd, int count,
|
||||
struct xencomm_handle *str)
|
||||
{
|
||||
return _hypercall3(int, console_io, cmd, count, str);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_physdev_op(int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, physdev_op, cmd, arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_grant_table_op(unsigned int cmd,
|
||||
struct xencomm_handle *uop,
|
||||
unsigned int count)
|
||||
{
|
||||
return _hypercall3(int, grant_table_op, cmd, uop, count);
|
||||
}
|
||||
|
||||
int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count);
|
||||
|
||||
extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg);
|
||||
|
||||
static inline int
|
||||
xencomm_arch_hypercall_callback_op(int cmd, struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall2(int, callback_op, cmd, arg);
|
||||
}
|
||||
|
||||
static inline long
|
||||
xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg)
|
||||
{
|
||||
return _hypercall3(long, vcpu_op, cmd, cpu, arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
HYPERVISOR_physdev_op(int cmd, void *arg)
|
||||
{
|
||||
switch (cmd) {
|
||||
case PHYSDEVOP_eoi:
|
||||
return _hypercall1(int, ia64_fast_eoi,
|
||||
((struct physdev_eoi *)arg)->irq);
|
||||
default:
|
||||
return xencomm_hypercall_physdev_op(cmd, arg);
|
||||
}
|
||||
}
|
||||
|
||||
static inline long
|
||||
xencomm_arch_hypercall_opt_feature(struct xencomm_handle *arg)
|
||||
{
|
||||
return _hypercall1(long, opt_feature, arg);
|
||||
}
|
||||
|
||||
/* for balloon driver */
|
||||
#define HYPERVISOR_update_va_mapping(va, new_val, flags) (0)
|
||||
|
||||
/* Use xencomm to do hypercalls. */
|
||||
#define HYPERVISOR_sched_op xencomm_hypercall_sched_op
|
||||
#define HYPERVISOR_event_channel_op xencomm_hypercall_event_channel_op
|
||||
#define HYPERVISOR_callback_op xencomm_hypercall_callback_op
|
||||
#define HYPERVISOR_multicall xencomm_hypercall_multicall
|
||||
#define HYPERVISOR_xen_version xencomm_hypercall_xen_version
|
||||
#define HYPERVISOR_console_io xencomm_hypercall_console_io
|
||||
#define HYPERVISOR_memory_op xencomm_hypercall_memory_op
|
||||
#define HYPERVISOR_suspend xencomm_hypercall_suspend
|
||||
#define HYPERVISOR_vcpu_op xencomm_hypercall_vcpu_op
|
||||
#define HYPERVISOR_opt_feature xencomm_hypercall_opt_feature
|
||||
|
||||
/* to compile gnttab_copy_grant_page() in drivers/xen/core/gnttab.c */
|
||||
#define HYPERVISOR_mmu_update(req, count, success_count, domid) ({ BUG(); 0; })
|
||||
|
||||
static inline int
|
||||
HYPERVISOR_shutdown(
|
||||
unsigned int reason)
|
||||
{
|
||||
struct sched_shutdown sched_shutdown = {
|
||||
.reason = reason
|
||||
};
|
||||
|
||||
int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
/* for netfront.c, netback.c */
|
||||
#define MULTI_UVMFLAGS_INDEX 0 /* XXX any value */
|
||||
|
||||
static inline void
|
||||
MULTI_update_va_mapping(
|
||||
struct multicall_entry *mcl, unsigned long va,
|
||||
pte_t new_val, unsigned long flags)
|
||||
{
|
||||
mcl->op = __HYPERVISOR_update_va_mapping;
|
||||
mcl->result = 0;
|
||||
}
|
||||
|
||||
static inline void
|
||||
MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd,
|
||||
void *uop, unsigned int count)
|
||||
{
|
||||
mcl->op = __HYPERVISOR_grant_table_op;
|
||||
mcl->args[0] = cmd;
|
||||
mcl->args[1] = (unsigned long)uop;
|
||||
mcl->args[2] = count;
|
||||
}
|
||||
|
||||
static inline void
|
||||
MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
|
||||
int count, int *success_count, domid_t domid)
|
||||
{
|
||||
mcl->op = __HYPERVISOR_mmu_update;
|
||||
mcl->args[0] = (unsigned long)req;
|
||||
mcl->args[1] = count;
|
||||
mcl->args[2] = (unsigned long)success_count;
|
||||
mcl->args[3] = domid;
|
||||
}
|
||||
|
||||
#endif /* _ASM_IA64_XEN_HYPERCALL_H */
|
||||
89
arch/ia64/include/asm/xen/hypervisor.h
Normal file
89
arch/ia64/include/asm/xen/hypervisor.h
Normal file
@ -0,0 +1,89 @@
|
||||
/******************************************************************************
|
||||
* hypervisor.h
|
||||
*
|
||||
* Linux-specific hypervisor handling.
|
||||
*
|
||||
* Copyright (c) 2002-2004, K A Fraser
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License version 2
|
||||
* as published by the Free Software Foundation; or, when distributed
|
||||
* separately from the Linux kernel or incorporated into other
|
||||
* software packages, subject to the following license:
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this source file (the "Software"), to deal in the Software without
|
||||
* restriction, including without limitation the rights to use, copy, modify,
|
||||
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
||||
* and to permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||
* IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_HYPERVISOR_H
|
||||
#define _ASM_IA64_XEN_HYPERVISOR_H
|
||||
|
||||
#ifdef CONFIG_XEN
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <xen/interface/xen.h>
|
||||
#include <xen/interface/version.h> /* to compile feature.c */
|
||||
#include <xen/features.h> /* to comiple xen-netfront.c */
|
||||
#include <asm/xen/hypercall.h>
|
||||
|
||||
/* xen_domain_type is set before executing any C code by early_xen_setup */
|
||||
enum xen_domain_type {
|
||||
XEN_NATIVE,
|
||||
XEN_PV_DOMAIN,
|
||||
XEN_HVM_DOMAIN,
|
||||
};
|
||||
|
||||
extern enum xen_domain_type xen_domain_type;
|
||||
|
||||
#define xen_domain() (xen_domain_type != XEN_NATIVE)
|
||||
#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN)
|
||||
#define xen_initial_domain() (xen_pv_domain() && \
|
||||
(xen_start_info->flags & SIF_INITDOMAIN))
|
||||
#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN)
|
||||
|
||||
/* deprecated. remove this */
|
||||
#define is_running_on_xen() (xen_domain_type == XEN_PV_DOMAIN)
|
||||
|
||||
extern struct shared_info *HYPERVISOR_shared_info;
|
||||
extern struct start_info *xen_start_info;
|
||||
|
||||
void __init xen_setup_vcpu_info_placement(void);
|
||||
void force_evtchn_callback(void);
|
||||
|
||||
/* for drivers/xen/balloon/balloon.c */
|
||||
#ifdef CONFIG_XEN_SCRUB_PAGES
|
||||
#define scrub_pages(_p, _n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT)
|
||||
#else
|
||||
#define scrub_pages(_p, _n) ((void)0)
|
||||
#endif
|
||||
|
||||
/* For setup_arch() in arch/ia64/kernel/setup.c */
|
||||
void xen_ia64_enable_opt_feature(void);
|
||||
|
||||
#else /* CONFIG_XEN */
|
||||
|
||||
#define xen_domain() (0)
|
||||
#define xen_pv_domain() (0)
|
||||
#define xen_initial_domain() (0)
|
||||
#define xen_hvm_domain() (0)
|
||||
#define is_running_on_xen() (0) /* deprecated. remove this */
|
||||
#endif
|
||||
|
||||
#define is_initial_xendomain() (0) /* deprecated. remove this */
|
||||
|
||||
#endif /* _ASM_IA64_XEN_HYPERVISOR_H */
|
||||
458
arch/ia64/include/asm/xen/inst.h
Normal file
458
arch/ia64/include/asm/xen/inst.h
Normal file
@ -0,0 +1,458 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/xen/inst.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <asm/xen/privop.h>
|
||||
|
||||
#define ia64_ivt xen_ivt
|
||||
#define DO_SAVE_MIN XEN_DO_SAVE_MIN
|
||||
|
||||
#define __paravirt_switch_to xen_switch_to
|
||||
#define __paravirt_leave_syscall xen_leave_syscall
|
||||
#define __paravirt_work_processed_syscall xen_work_processed_syscall
|
||||
#define __paravirt_leave_kernel xen_leave_kernel
|
||||
#define __paravirt_pending_syscall_end xen_work_pending_syscall_end
|
||||
#define __paravirt_work_processed_syscall_target \
|
||||
xen_work_processed_syscall
|
||||
|
||||
#define MOV_FROM_IFA(reg) \
|
||||
movl reg = XSI_IFA; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_ITIR(reg) \
|
||||
movl reg = XSI_ITIR; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_ISR(reg) \
|
||||
movl reg = XSI_ISR; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_IHA(reg) \
|
||||
movl reg = XSI_IHA; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_IPSR(pred, reg) \
|
||||
(pred) movl reg = XSI_IPSR; \
|
||||
;; \
|
||||
(pred) ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_IIM(reg) \
|
||||
movl reg = XSI_IIM; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
#define MOV_FROM_IIP(reg) \
|
||||
movl reg = XSI_IIP; \
|
||||
;; \
|
||||
ld8 reg = [reg]
|
||||
|
||||
.macro __MOV_FROM_IVR reg, clob
|
||||
.ifc "\reg", "r8"
|
||||
XEN_HYPER_GET_IVR
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
XEN_HYPER_GET_IVR
|
||||
;;
|
||||
mov \reg = r8
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
mov \clob = r8
|
||||
;;
|
||||
XEN_HYPER_GET_IVR
|
||||
;;
|
||||
mov \reg = r8
|
||||
;;
|
||||
mov r8 = \clob
|
||||
.endm
|
||||
#define MOV_FROM_IVR(reg, clob) __MOV_FROM_IVR reg, clob
|
||||
|
||||
.macro __MOV_FROM_PSR pred, reg, clob
|
||||
.ifc "\reg", "r8"
|
||||
(\pred) XEN_HYPER_GET_PSR;
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
(\pred) XEN_HYPER_GET_PSR
|
||||
;;
|
||||
(\pred) mov \reg = r8
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
(\pred) mov \clob = r8
|
||||
(\pred) XEN_HYPER_GET_PSR
|
||||
;;
|
||||
(\pred) mov \reg = r8
|
||||
(\pred) mov r8 = \clob
|
||||
.endm
|
||||
#define MOV_FROM_PSR(pred, reg, clob) __MOV_FROM_PSR pred, reg, clob
|
||||
|
||||
|
||||
#define MOV_TO_IFA(reg, clob) \
|
||||
movl clob = XSI_IFA; \
|
||||
;; \
|
||||
st8 [clob] = reg \
|
||||
|
||||
#define MOV_TO_ITIR(pred, reg, clob) \
|
||||
(pred) movl clob = XSI_ITIR; \
|
||||
;; \
|
||||
(pred) st8 [clob] = reg
|
||||
|
||||
#define MOV_TO_IHA(pred, reg, clob) \
|
||||
(pred) movl clob = XSI_IHA; \
|
||||
;; \
|
||||
(pred) st8 [clob] = reg
|
||||
|
||||
#define MOV_TO_IPSR(pred, reg, clob) \
|
||||
(pred) movl clob = XSI_IPSR; \
|
||||
;; \
|
||||
(pred) st8 [clob] = reg; \
|
||||
;;
|
||||
|
||||
#define MOV_TO_IFS(pred, reg, clob) \
|
||||
(pred) movl clob = XSI_IFS; \
|
||||
;; \
|
||||
(pred) st8 [clob] = reg; \
|
||||
;;
|
||||
|
||||
#define MOV_TO_IIP(reg, clob) \
|
||||
movl clob = XSI_IIP; \
|
||||
;; \
|
||||
st8 [clob] = reg
|
||||
|
||||
.macro ____MOV_TO_KR kr, reg, clob0, clob1
|
||||
.ifc "\clob0", "r9"
|
||||
.error "clob0 \clob0 must not be r9"
|
||||
.endif
|
||||
.ifc "\clob1", "r8"
|
||||
.error "clob1 \clob1 must not be r8"
|
||||
.endif
|
||||
|
||||
.ifnc "\reg", "r9"
|
||||
.ifnc "\clob1", "r9"
|
||||
mov \clob1 = r9
|
||||
.endif
|
||||
mov r9 = \reg
|
||||
.endif
|
||||
.ifnc "\clob0", "r8"
|
||||
mov \clob0 = r8
|
||||
.endif
|
||||
mov r8 = \kr
|
||||
;;
|
||||
XEN_HYPER_SET_KR
|
||||
|
||||
.ifnc "\reg", "r9"
|
||||
.ifnc "\clob1", "r9"
|
||||
mov r9 = \clob1
|
||||
.endif
|
||||
.endif
|
||||
.ifnc "\clob0", "r8"
|
||||
mov r8 = \clob0
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.macro __MOV_TO_KR kr, reg, clob0, clob1
|
||||
.ifc "\clob0", "r9"
|
||||
____MOV_TO_KR \kr, \reg, \clob1, \clob0
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob1", "r8"
|
||||
____MOV_TO_KR \kr, \reg, \clob1, \clob0
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
____MOV_TO_KR \kr, \reg, \clob0, \clob1
|
||||
.endm
|
||||
|
||||
#define MOV_TO_KR(kr, reg, clob0, clob1) \
|
||||
__MOV_TO_KR IA64_KR_ ## kr, reg, clob0, clob1
|
||||
|
||||
|
||||
.macro __ITC_I pred, reg, clob
|
||||
.ifc "\reg", "r8"
|
||||
(\pred) XEN_HYPER_ITC_I
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
(\pred) mov r8 = \reg
|
||||
;;
|
||||
(\pred) XEN_HYPER_ITC_I
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
(\pred) mov \clob = r8
|
||||
(\pred) mov r8 = \reg
|
||||
;;
|
||||
(\pred) XEN_HYPER_ITC_I
|
||||
;;
|
||||
(\pred) mov r8 = \clob
|
||||
;;
|
||||
.endm
|
||||
#define ITC_I(pred, reg, clob) __ITC_I pred, reg, clob
|
||||
|
||||
.macro __ITC_D pred, reg, clob
|
||||
.ifc "\reg", "r8"
|
||||
(\pred) XEN_HYPER_ITC_D
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
(\pred) mov r8 = \reg
|
||||
;;
|
||||
(\pred) XEN_HYPER_ITC_D
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
(\pred) mov \clob = r8
|
||||
(\pred) mov r8 = \reg
|
||||
;;
|
||||
(\pred) XEN_HYPER_ITC_D
|
||||
;;
|
||||
(\pred) mov r8 = \clob
|
||||
;;
|
||||
.endm
|
||||
#define ITC_D(pred, reg, clob) __ITC_D pred, reg, clob
|
||||
|
||||
.macro __ITC_I_AND_D pred_i, pred_d, reg, clob
|
||||
.ifc "\reg", "r8"
|
||||
(\pred_i)XEN_HYPER_ITC_I
|
||||
;;
|
||||
(\pred_d)XEN_HYPER_ITC_D
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
mov r8 = \reg
|
||||
;;
|
||||
(\pred_i)XEN_HYPER_ITC_I
|
||||
;;
|
||||
(\pred_d)XEN_HYPER_ITC_D
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
mov \clob = r8
|
||||
mov r8 = \reg
|
||||
;;
|
||||
(\pred_i)XEN_HYPER_ITC_I
|
||||
;;
|
||||
(\pred_d)XEN_HYPER_ITC_D
|
||||
;;
|
||||
mov r8 = \clob
|
||||
;;
|
||||
.endm
|
||||
#define ITC_I_AND_D(pred_i, pred_d, reg, clob) \
|
||||
__ITC_I_AND_D pred_i, pred_d, reg, clob
|
||||
|
||||
.macro __THASH pred, reg0, reg1, clob
|
||||
.ifc "\reg0", "r8"
|
||||
(\pred) mov r8 = \reg1
|
||||
(\pred) XEN_HYPER_THASH
|
||||
.exitm
|
||||
.endc
|
||||
.ifc "\reg1", "r8"
|
||||
(\pred) XEN_HYPER_THASH
|
||||
;;
|
||||
(\pred) mov \reg0 = r8
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
.ifc "\clob", "r8"
|
||||
(\pred) mov r8 = \reg1
|
||||
(\pred) XEN_HYPER_THASH
|
||||
;;
|
||||
(\pred) mov \reg0 = r8
|
||||
;;
|
||||
.exitm
|
||||
.endif
|
||||
|
||||
(\pred) mov \clob = r8
|
||||
(\pred) mov r8 = \reg1
|
||||
(\pred) XEN_HYPER_THASH
|
||||
;;
|
||||
(\pred) mov \reg0 = r8
|
||||
(\pred) mov r8 = \clob
|
||||
;;
|
||||
.endm
|
||||
#define THASH(pred, reg0, reg1, clob) __THASH pred, reg0, reg1, clob
|
||||
|
||||
#define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \
|
||||
mov clob0 = 1; \
|
||||
movl clob1 = XSI_PSR_IC; \
|
||||
;; \
|
||||
st4 [clob1] = clob0 \
|
||||
;;
|
||||
|
||||
#define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \
|
||||
;; \
|
||||
srlz.d; \
|
||||
mov clob1 = 1; \
|
||||
movl clob0 = XSI_PSR_IC; \
|
||||
;; \
|
||||
st4 [clob0] = clob1
|
||||
|
||||
#define RSM_PSR_IC(clob) \
|
||||
movl clob = XSI_PSR_IC; \
|
||||
;; \
|
||||
st4 [clob] = r0; \
|
||||
;;
|
||||
|
||||
/* pred will be clobbered */
|
||||
#define MASK_TO_PEND_OFS (-1)
|
||||
#define SSM_PSR_I(pred, pred_clob, clob) \
|
||||
(pred) movl clob = XSI_PSR_I_ADDR \
|
||||
;; \
|
||||
(pred) ld8 clob = [clob] \
|
||||
;; \
|
||||
/* if (pred) vpsr.i = 1 */ \
|
||||
/* if (pred) (vcpu->vcpu_info->evtchn_upcall_mask)=0 */ \
|
||||
(pred) st1 [clob] = r0, MASK_TO_PEND_OFS \
|
||||
;; \
|
||||
/* if (vcpu->vcpu_info->evtchn_upcall_pending) */ \
|
||||
(pred) ld1 clob = [clob] \
|
||||
;; \
|
||||
(pred) cmp.ne.unc pred_clob, p0 = clob, r0 \
|
||||
;; \
|
||||
(pred_clob)XEN_HYPER_SSM_I /* do areal ssm psr.i */
|
||||
|
||||
#define RSM_PSR_I(pred, clob0, clob1) \
|
||||
movl clob0 = XSI_PSR_I_ADDR; \
|
||||
mov clob1 = 1; \
|
||||
;; \
|
||||
ld8 clob0 = [clob0]; \
|
||||
;; \
|
||||
(pred) st1 [clob0] = clob1
|
||||
|
||||
#define RSM_PSR_I_IC(clob0, clob1, clob2) \
|
||||
movl clob0 = XSI_PSR_I_ADDR; \
|
||||
movl clob1 = XSI_PSR_IC; \
|
||||
;; \
|
||||
ld8 clob0 = [clob0]; \
|
||||
mov clob2 = 1; \
|
||||
;; \
|
||||
/* note: clears both vpsr.i and vpsr.ic! */ \
|
||||
st1 [clob0] = clob2; \
|
||||
st4 [clob1] = r0; \
|
||||
;;
|
||||
|
||||
#define RSM_PSR_DT \
|
||||
XEN_HYPER_RSM_PSR_DT
|
||||
|
||||
#define SSM_PSR_DT_AND_SRLZ_I \
|
||||
XEN_HYPER_SSM_PSR_DT
|
||||
|
||||
#define BSW_0(clob0, clob1, clob2) \
|
||||
;; \
|
||||
/* r16-r31 all now hold bank1 values */ \
|
||||
mov clob2 = ar.unat; \
|
||||
movl clob0 = XSI_BANK1_R16; \
|
||||
movl clob1 = XSI_BANK1_R16 + 8; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r16, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r17, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r18, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r19, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r20, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r21, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r22, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r23, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r24, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r25, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r26, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r27, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r28, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r29, 16; \
|
||||
;; \
|
||||
.mem.offset 0, 0; st8.spill [clob0] = r30, 16; \
|
||||
.mem.offset 8, 0; st8.spill [clob1] = r31, 16; \
|
||||
;; \
|
||||
mov clob1 = ar.unat; \
|
||||
movl clob0 = XSI_B1NAT; \
|
||||
;; \
|
||||
st8 [clob0] = clob1; \
|
||||
mov ar.unat = clob2; \
|
||||
movl clob0 = XSI_BANKNUM; \
|
||||
;; \
|
||||
st4 [clob0] = r0
|
||||
|
||||
|
||||
/* FIXME: THIS CODE IS NOT NaT SAFE! */
|
||||
#define XEN_BSW_1(clob) \
|
||||
mov clob = ar.unat; \
|
||||
movl r30 = XSI_B1NAT; \
|
||||
;; \
|
||||
ld8 r30 = [r30]; \
|
||||
mov r31 = 1; \
|
||||
;; \
|
||||
mov ar.unat = r30; \
|
||||
movl r30 = XSI_BANKNUM; \
|
||||
;; \
|
||||
st4 [r30] = r31; \
|
||||
movl r30 = XSI_BANK1_R16; \
|
||||
movl r31 = XSI_BANK1_R16+8; \
|
||||
;; \
|
||||
ld8.fill r16 = [r30], 16; \
|
||||
ld8.fill r17 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r18 = [r30], 16; \
|
||||
ld8.fill r19 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r20 = [r30], 16; \
|
||||
ld8.fill r21 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r22 = [r30], 16; \
|
||||
ld8.fill r23 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r24 = [r30], 16; \
|
||||
ld8.fill r25 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r26 = [r30], 16; \
|
||||
ld8.fill r27 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r28 = [r30], 16; \
|
||||
ld8.fill r29 = [r31], 16; \
|
||||
;; \
|
||||
ld8.fill r30 = [r30]; \
|
||||
ld8.fill r31 = [r31]; \
|
||||
;; \
|
||||
mov ar.unat = clob
|
||||
|
||||
#define BSW_1(clob0, clob1) XEN_BSW_1(clob1)
|
||||
|
||||
|
||||
#define COVER \
|
||||
XEN_HYPER_COVER
|
||||
|
||||
#define RFI \
|
||||
XEN_HYPER_RFI; \
|
||||
dv_serialize_data
|
||||
346
arch/ia64/include/asm/xen/interface.h
Normal file
346
arch/ia64/include/asm/xen/interface.h
Normal file
@ -0,0 +1,346 @@
|
||||
/******************************************************************************
|
||||
* arch-ia64/hypervisor-if.h
|
||||
*
|
||||
* Guest OS interface to IA64 Xen.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
* DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
* Copyright by those who contributed. (in alphabetical order)
|
||||
*
|
||||
* Anthony Xu <anthony.xu@intel.com>
|
||||
* Eddie Dong <eddie.dong@intel.com>
|
||||
* Fred Yang <fred.yang@intel.com>
|
||||
* Kevin Tian <kevin.tian@intel.com>
|
||||
* Alex Williamson <alex.williamson@hp.com>
|
||||
* Chris Wright <chrisw@sous-sol.org>
|
||||
* Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
|
||||
* Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
|
||||
* Hollis Blanchard <hollisb@us.ibm.com>
|
||||
* Isaku Yamahata <yamahata@valinux.co.jp>
|
||||
* Jan Beulich <jbeulich@novell.com>
|
||||
* John Levon <john.levon@sun.com>
|
||||
* Kazuhiro Suzuki <kaz@jp.fujitsu.com>
|
||||
* Keir Fraser <keir.fraser@citrix.com>
|
||||
* Kouya Shimura <kouya@jp.fujitsu.com>
|
||||
* Masaki Kanno <kanno.masaki@jp.fujitsu.com>
|
||||
* Matt Chapman <matthewc@hp.com>
|
||||
* Matthew Chapman <matthewc@hp.com>
|
||||
* Samuel Thibault <samuel.thibault@eu.citrix.com>
|
||||
* Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>
|
||||
* Tristan Gingold <tgingold@free.fr>
|
||||
* Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
|
||||
* Yutaka Ezaki <yutaka.ezaki@jp.fujitsu.com>
|
||||
* Zhang Xin <xing.z.zhang@intel.com>
|
||||
* Zhang xiantao <xiantao.zhang@intel.com>
|
||||
* dan.magenheimer@hp.com
|
||||
* ian.pratt@cl.cam.ac.uk
|
||||
* michael.fetterman@cl.cam.ac.uk
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_INTERFACE_H
|
||||
#define _ASM_IA64_XEN_INTERFACE_H
|
||||
|
||||
#define __DEFINE_GUEST_HANDLE(name, type) \
|
||||
typedef struct { type *p; } __guest_handle_ ## name
|
||||
|
||||
#define DEFINE_GUEST_HANDLE_STRUCT(name) \
|
||||
__DEFINE_GUEST_HANDLE(name, struct name)
|
||||
#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
|
||||
#define GUEST_HANDLE(name) __guest_handle_ ## name
|
||||
#define GUEST_HANDLE_64(name) GUEST_HANDLE(name)
|
||||
#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
/* Guest handles for primitive C types. */
|
||||
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
|
||||
__DEFINE_GUEST_HANDLE(uint, unsigned int);
|
||||
__DEFINE_GUEST_HANDLE(ulong, unsigned long);
|
||||
__DEFINE_GUEST_HANDLE(u64, unsigned long);
|
||||
DEFINE_GUEST_HANDLE(char);
|
||||
DEFINE_GUEST_HANDLE(int);
|
||||
DEFINE_GUEST_HANDLE(long);
|
||||
DEFINE_GUEST_HANDLE(void);
|
||||
|
||||
typedef unsigned long xen_pfn_t;
|
||||
DEFINE_GUEST_HANDLE(xen_pfn_t);
|
||||
#define PRI_xen_pfn "lx"
|
||||
#endif
|
||||
|
||||
/* Arch specific VIRQs definition */
|
||||
#define VIRQ_ITC VIRQ_ARCH_0 /* V. Virtual itc timer */
|
||||
#define VIRQ_MCA_CMC VIRQ_ARCH_1 /* MCA cmc interrupt */
|
||||
#define VIRQ_MCA_CPE VIRQ_ARCH_2 /* MCA cpe interrupt */
|
||||
|
||||
/* Maximum number of virtual CPUs in multi-processor guests. */
|
||||
/* keep sizeof(struct shared_page) <= PAGE_SIZE.
|
||||
* this is checked in arch/ia64/xen/hypervisor.c. */
|
||||
#define MAX_VIRT_CPUS 64
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#define INVALID_MFN (~0UL)
|
||||
|
||||
union vac {
|
||||
unsigned long value;
|
||||
struct {
|
||||
int a_int:1;
|
||||
int a_from_int_cr:1;
|
||||
int a_to_int_cr:1;
|
||||
int a_from_psr:1;
|
||||
int a_from_cpuid:1;
|
||||
int a_cover:1;
|
||||
int a_bsw:1;
|
||||
long reserved:57;
|
||||
};
|
||||
};
|
||||
|
||||
union vdc {
|
||||
unsigned long value;
|
||||
struct {
|
||||
int d_vmsw:1;
|
||||
int d_extint:1;
|
||||
int d_ibr_dbr:1;
|
||||
int d_pmc:1;
|
||||
int d_to_pmd:1;
|
||||
int d_itm:1;
|
||||
long reserved:58;
|
||||
};
|
||||
};
|
||||
|
||||
struct mapped_regs {
|
||||
union vac vac;
|
||||
union vdc vdc;
|
||||
unsigned long virt_env_vaddr;
|
||||
unsigned long reserved1[29];
|
||||
unsigned long vhpi;
|
||||
unsigned long reserved2[95];
|
||||
union {
|
||||
unsigned long vgr[16];
|
||||
unsigned long bank1_regs[16]; /* bank1 regs (r16-r31)
|
||||
when bank0 active */
|
||||
};
|
||||
union {
|
||||
unsigned long vbgr[16];
|
||||
unsigned long bank0_regs[16]; /* bank0 regs (r16-r31)
|
||||
when bank1 active */
|
||||
};
|
||||
unsigned long vnat;
|
||||
unsigned long vbnat;
|
||||
unsigned long vcpuid[5];
|
||||
unsigned long reserved3[11];
|
||||
unsigned long vpsr;
|
||||
unsigned long vpr;
|
||||
unsigned long reserved4[76];
|
||||
union {
|
||||
unsigned long vcr[128];
|
||||
struct {
|
||||
unsigned long dcr; /* CR0 */
|
||||
unsigned long itm;
|
||||
unsigned long iva;
|
||||
unsigned long rsv1[5];
|
||||
unsigned long pta; /* CR8 */
|
||||
unsigned long rsv2[7];
|
||||
unsigned long ipsr; /* CR16 */
|
||||
unsigned long isr;
|
||||
unsigned long rsv3;
|
||||
unsigned long iip;
|
||||
unsigned long ifa;
|
||||
unsigned long itir;
|
||||
unsigned long iipa;
|
||||
unsigned long ifs;
|
||||
unsigned long iim; /* CR24 */
|
||||
unsigned long iha;
|
||||
unsigned long rsv4[38];
|
||||
unsigned long lid; /* CR64 */
|
||||
unsigned long ivr;
|
||||
unsigned long tpr;
|
||||
unsigned long eoi;
|
||||
unsigned long irr[4];
|
||||
unsigned long itv; /* CR72 */
|
||||
unsigned long pmv;
|
||||
unsigned long cmcv;
|
||||
unsigned long rsv5[5];
|
||||
unsigned long lrr0; /* CR80 */
|
||||
unsigned long lrr1;
|
||||
unsigned long rsv6[46];
|
||||
};
|
||||
};
|
||||
union {
|
||||
unsigned long reserved5[128];
|
||||
struct {
|
||||
unsigned long precover_ifs;
|
||||
unsigned long unat; /* not sure if this is needed
|
||||
until NaT arch is done */
|
||||
int interrupt_collection_enabled; /* virtual psr.ic */
|
||||
|
||||
/* virtual interrupt deliverable flag is
|
||||
* evtchn_upcall_mask in shared info area now.
|
||||
* interrupt_mask_addr is the address
|
||||
* of evtchn_upcall_mask for current vcpu
|
||||
*/
|
||||
unsigned char *interrupt_mask_addr;
|
||||
int pending_interruption;
|
||||
unsigned char vpsr_pp;
|
||||
unsigned char vpsr_dfh;
|
||||
unsigned char hpsr_dfh;
|
||||
unsigned char hpsr_mfh;
|
||||
unsigned long reserved5_1[4];
|
||||
int metaphysical_mode; /* 1 = use metaphys mapping
|
||||
0 = use virtual */
|
||||
int banknum; /* 0 or 1, which virtual
|
||||
register bank is active */
|
||||
unsigned long rrs[8]; /* region registers */
|
||||
unsigned long krs[8]; /* kernel registers */
|
||||
unsigned long tmp[16]; /* temp registers
|
||||
(e.g. for hyperprivops) */
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
struct arch_vcpu_info {
|
||||
/* nothing */
|
||||
};
|
||||
|
||||
/*
|
||||
* This structure is used for magic page in domain pseudo physical address
|
||||
* space and the result of XENMEM_machine_memory_map.
|
||||
* As the XENMEM_machine_memory_map result,
|
||||
* xen_memory_map::nr_entries indicates the size in bytes
|
||||
* including struct xen_ia64_memmap_info. Not the number of entries.
|
||||
*/
|
||||
struct xen_ia64_memmap_info {
|
||||
uint64_t efi_memmap_size; /* size of EFI memory map */
|
||||
uint64_t efi_memdesc_size; /* size of an EFI memory map
|
||||
* descriptor */
|
||||
uint32_t efi_memdesc_version; /* memory descriptor version */
|
||||
void *memdesc[0]; /* array of efi_memory_desc_t */
|
||||
};
|
||||
|
||||
struct arch_shared_info {
|
||||
/* PFN of the start_info page. */
|
||||
unsigned long start_info_pfn;
|
||||
|
||||
/* Interrupt vector for event channel. */
|
||||
int evtchn_vector;
|
||||
|
||||
/* PFN of memmap_info page */
|
||||
unsigned int memmap_info_num_pages; /* currently only = 1 case is
|
||||
supported. */
|
||||
unsigned long memmap_info_pfn;
|
||||
|
||||
uint64_t pad[31];
|
||||
};
|
||||
|
||||
struct xen_callback {
|
||||
unsigned long ip;
|
||||
};
|
||||
typedef struct xen_callback xen_callback_t;
|
||||
|
||||
#endif /* !__ASSEMBLY__ */
|
||||
|
||||
/* Size of the shared_info area (this is not related to page size). */
|
||||
#define XSI_SHIFT 14
|
||||
#define XSI_SIZE (1 << XSI_SHIFT)
|
||||
/* Log size of mapped_regs area (64 KB - only 4KB is used). */
|
||||
#define XMAPPEDREGS_SHIFT 12
|
||||
#define XMAPPEDREGS_SIZE (1 << XMAPPEDREGS_SHIFT)
|
||||
/* Offset of XASI (Xen arch shared info) wrt XSI_BASE. */
|
||||
#define XMAPPEDREGS_OFS XSI_SIZE
|
||||
|
||||
/* Hyperprivops. */
|
||||
#define HYPERPRIVOP_START 0x1
|
||||
#define HYPERPRIVOP_RFI (HYPERPRIVOP_START + 0x0)
|
||||
#define HYPERPRIVOP_RSM_DT (HYPERPRIVOP_START + 0x1)
|
||||
#define HYPERPRIVOP_SSM_DT (HYPERPRIVOP_START + 0x2)
|
||||
#define HYPERPRIVOP_COVER (HYPERPRIVOP_START + 0x3)
|
||||
#define HYPERPRIVOP_ITC_D (HYPERPRIVOP_START + 0x4)
|
||||
#define HYPERPRIVOP_ITC_I (HYPERPRIVOP_START + 0x5)
|
||||
#define HYPERPRIVOP_SSM_I (HYPERPRIVOP_START + 0x6)
|
||||
#define HYPERPRIVOP_GET_IVR (HYPERPRIVOP_START + 0x7)
|
||||
#define HYPERPRIVOP_GET_TPR (HYPERPRIVOP_START + 0x8)
|
||||
#define HYPERPRIVOP_SET_TPR (HYPERPRIVOP_START + 0x9)
|
||||
#define HYPERPRIVOP_EOI (HYPERPRIVOP_START + 0xa)
|
||||
#define HYPERPRIVOP_SET_ITM (HYPERPRIVOP_START + 0xb)
|
||||
#define HYPERPRIVOP_THASH (HYPERPRIVOP_START + 0xc)
|
||||
#define HYPERPRIVOP_PTC_GA (HYPERPRIVOP_START + 0xd)
|
||||
#define HYPERPRIVOP_ITR_D (HYPERPRIVOP_START + 0xe)
|
||||
#define HYPERPRIVOP_GET_RR (HYPERPRIVOP_START + 0xf)
|
||||
#define HYPERPRIVOP_SET_RR (HYPERPRIVOP_START + 0x10)
|
||||
#define HYPERPRIVOP_SET_KR (HYPERPRIVOP_START + 0x11)
|
||||
#define HYPERPRIVOP_FC (HYPERPRIVOP_START + 0x12)
|
||||
#define HYPERPRIVOP_GET_CPUID (HYPERPRIVOP_START + 0x13)
|
||||
#define HYPERPRIVOP_GET_PMD (HYPERPRIVOP_START + 0x14)
|
||||
#define HYPERPRIVOP_GET_EFLAG (HYPERPRIVOP_START + 0x15)
|
||||
#define HYPERPRIVOP_SET_EFLAG (HYPERPRIVOP_START + 0x16)
|
||||
#define HYPERPRIVOP_RSM_BE (HYPERPRIVOP_START + 0x17)
|
||||
#define HYPERPRIVOP_GET_PSR (HYPERPRIVOP_START + 0x18)
|
||||
#define HYPERPRIVOP_SET_RR0_TO_RR4 (HYPERPRIVOP_START + 0x19)
|
||||
#define HYPERPRIVOP_MAX (0x1a)
|
||||
|
||||
/* Fast and light hypercalls. */
|
||||
#define __HYPERVISOR_ia64_fast_eoi __HYPERVISOR_arch_1
|
||||
|
||||
/* Xencomm macros. */
|
||||
#define XENCOMM_INLINE_MASK 0xf800000000000000UL
|
||||
#define XENCOMM_INLINE_FLAG 0x8000000000000000UL
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/*
|
||||
* Optimization features.
|
||||
* The hypervisor may do some special optimizations for guests. This hypercall
|
||||
* can be used to switch on/of these special optimizations.
|
||||
*/
|
||||
#define __HYPERVISOR_opt_feature 0x700UL
|
||||
|
||||
#define XEN_IA64_OPTF_OFF 0x0
|
||||
#define XEN_IA64_OPTF_ON 0x1
|
||||
|
||||
/*
|
||||
* If this feature is switched on, the hypervisor inserts the
|
||||
* tlb entries without calling the guests traphandler.
|
||||
* This is useful in guests using region 7 for identity mapping
|
||||
* like the linux kernel does.
|
||||
*/
|
||||
#define XEN_IA64_OPTF_IDENT_MAP_REG7 1
|
||||
|
||||
/* Identity mapping of region 4 addresses in HVM. */
|
||||
#define XEN_IA64_OPTF_IDENT_MAP_REG4 2
|
||||
|
||||
/* Identity mapping of region 5 addresses in HVM. */
|
||||
#define XEN_IA64_OPTF_IDENT_MAP_REG5 3
|
||||
|
||||
#define XEN_IA64_OPTF_IDENT_MAP_NOT_SET (0)
|
||||
|
||||
struct xen_ia64_opt_feature {
|
||||
unsigned long cmd; /* Which feature */
|
||||
unsigned char on; /* Switch feature on/off */
|
||||
union {
|
||||
struct {
|
||||
/* The page protection bit mask of the pte.
|
||||
* This will be or'ed with the pte. */
|
||||
unsigned long pgprot;
|
||||
unsigned long key; /* A protection key for itir.*/
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* _ASM_IA64_XEN_INTERFACE_H */
|
||||
44
arch/ia64/include/asm/xen/irq.h
Normal file
44
arch/ia64/include/asm/xen/irq.h
Normal file
@ -0,0 +1,44 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/xen/irq.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_IRQ_H
|
||||
#define _ASM_IA64_XEN_IRQ_H
|
||||
|
||||
/*
|
||||
* The flat IRQ space is divided into two regions:
|
||||
* 1. A one-to-one mapping of real physical IRQs. This space is only used
|
||||
* if we have physical device-access privilege. This region is at the
|
||||
* start of the IRQ space so that existing device drivers do not need
|
||||
* to be modified to translate physical IRQ numbers into our IRQ space.
|
||||
* 3. A dynamic mapping of inter-domain and Xen-sourced virtual IRQs. These
|
||||
* are bound using the provided bind/unbind functions.
|
||||
*/
|
||||
|
||||
#define XEN_PIRQ_BASE 0
|
||||
#define XEN_NR_PIRQS 256
|
||||
|
||||
#define XEN_DYNIRQ_BASE (XEN_PIRQ_BASE + XEN_NR_PIRQS)
|
||||
#define XEN_NR_DYNIRQS (NR_CPUS * 8)
|
||||
|
||||
#define XEN_NR_IRQS (XEN_NR_PIRQS + XEN_NR_DYNIRQS)
|
||||
|
||||
#endif /* _ASM_IA64_XEN_IRQ_H */
|
||||
134
arch/ia64/include/asm/xen/minstate.h
Normal file
134
arch/ia64/include/asm/xen/minstate.h
Normal file
@ -0,0 +1,134 @@
|
||||
/*
|
||||
* DO_SAVE_MIN switches to the kernel stacks (if necessary) and saves
|
||||
* the minimum state necessary that allows us to turn psr.ic back
|
||||
* on.
|
||||
*
|
||||
* Assumed state upon entry:
|
||||
* psr.ic: off
|
||||
* r31: contains saved predicates (pr)
|
||||
*
|
||||
* Upon exit, the state is as follows:
|
||||
* psr.ic: off
|
||||
* r2 = points to &pt_regs.r16
|
||||
* r8 = contents of ar.ccv
|
||||
* r9 = contents of ar.csd
|
||||
* r10 = contents of ar.ssd
|
||||
* r11 = FPSR_DEFAULT
|
||||
* r12 = kernel sp (kernel virtual address)
|
||||
* r13 = points to current task_struct (kernel virtual address)
|
||||
* p15 = TRUE if psr.i is set in cr.ipsr
|
||||
* predicate registers (other than p2, p3, and p15), b6, r3, r14, r15:
|
||||
* preserved
|
||||
* CONFIG_XEN note: p6/p7 are not preserved
|
||||
*
|
||||
* Note that psr.ic is NOT turned on by this macro. This is so that
|
||||
* we can pass interruption state as arguments to a handler.
|
||||
*/
|
||||
#define XEN_DO_SAVE_MIN(__COVER,SAVE_IFS,EXTRA,WORKAROUND) \
|
||||
mov r16=IA64_KR(CURRENT); /* M */ \
|
||||
mov r27=ar.rsc; /* M */ \
|
||||
mov r20=r1; /* A */ \
|
||||
mov r25=ar.unat; /* M */ \
|
||||
MOV_FROM_IPSR(p0,r29); /* M */ \
|
||||
MOV_FROM_IIP(r28); /* M */ \
|
||||
mov r21=ar.fpsr; /* M */ \
|
||||
mov r26=ar.pfs; /* I */ \
|
||||
__COVER; /* B;; (or nothing) */ \
|
||||
adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16; \
|
||||
;; \
|
||||
ld1 r17=[r16]; /* load current->thread.on_ustack flag */ \
|
||||
st1 [r16]=r0; /* clear current->thread.on_ustack flag */ \
|
||||
adds r1=-IA64_TASK_THREAD_ON_USTACK_OFFSET,r16 \
|
||||
/* switch from user to kernel RBS: */ \
|
||||
;; \
|
||||
invala; /* M */ \
|
||||
/* SAVE_IFS;*/ /* see xen special handling below */ \
|
||||
cmp.eq pKStk,pUStk=r0,r17; /* are we in kernel mode already? */ \
|
||||
;; \
|
||||
(pUStk) mov ar.rsc=0; /* set enforced lazy mode, pl 0, little-endian, loadrs=0 */ \
|
||||
;; \
|
||||
(pUStk) mov.m r24=ar.rnat; \
|
||||
(pUStk) addl r22=IA64_RBS_OFFSET,r1; /* compute base of RBS */ \
|
||||
(pKStk) mov r1=sp; /* get sp */ \
|
||||
;; \
|
||||
(pUStk) lfetch.fault.excl.nt1 [r22]; \
|
||||
(pUStk) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r1; /* compute base of memory stack */ \
|
||||
(pUStk) mov r23=ar.bspstore; /* save ar.bspstore */ \
|
||||
;; \
|
||||
(pUStk) mov ar.bspstore=r22; /* switch to kernel RBS */ \
|
||||
(pKStk) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \
|
||||
;; \
|
||||
(pUStk) mov r18=ar.bsp; \
|
||||
(pUStk) mov ar.rsc=0x3; /* set eager mode, pl 0, little-endian, loadrs=0 */ \
|
||||
adds r17=2*L1_CACHE_BYTES,r1; /* really: biggest cache-line size */ \
|
||||
adds r16=PT(CR_IPSR),r1; \
|
||||
;; \
|
||||
lfetch.fault.excl.nt1 [r17],L1_CACHE_BYTES; \
|
||||
st8 [r16]=r29; /* save cr.ipsr */ \
|
||||
;; \
|
||||
lfetch.fault.excl.nt1 [r17]; \
|
||||
tbit.nz p15,p0=r29,IA64_PSR_I_BIT; \
|
||||
mov r29=b0 \
|
||||
;; \
|
||||
WORKAROUND; \
|
||||
adds r16=PT(R8),r1; /* initialize first base pointer */ \
|
||||
adds r17=PT(R9),r1; /* initialize second base pointer */ \
|
||||
(pKStk) mov r18=r0; /* make sure r18 isn't NaT */ \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r8,16; \
|
||||
.mem.offset 8,0; st8.spill [r17]=r9,16; \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r10,24; \
|
||||
movl r8=XSI_PRECOVER_IFS; \
|
||||
.mem.offset 8,0; st8.spill [r17]=r11,24; \
|
||||
;; \
|
||||
/* xen special handling for possibly lazy cover */ \
|
||||
/* SAVE_MIN case in dispatch_ia32_handler: mov r30=r0 */ \
|
||||
ld8 r30=[r8]; \
|
||||
(pUStk) sub r18=r18,r22; /* r18=RSE.ndirty*8 */ \
|
||||
st8 [r16]=r28,16; /* save cr.iip */ \
|
||||
;; \
|
||||
st8 [r17]=r30,16; /* save cr.ifs */ \
|
||||
mov r8=ar.ccv; \
|
||||
mov r9=ar.csd; \
|
||||
mov r10=ar.ssd; \
|
||||
movl r11=FPSR_DEFAULT; /* L-unit */ \
|
||||
;; \
|
||||
st8 [r16]=r25,16; /* save ar.unat */ \
|
||||
st8 [r17]=r26,16; /* save ar.pfs */ \
|
||||
shl r18=r18,16; /* compute ar.rsc to be used for "loadrs" */ \
|
||||
;; \
|
||||
st8 [r16]=r27,16; /* save ar.rsc */ \
|
||||
(pUStk) st8 [r17]=r24,16; /* save ar.rnat */ \
|
||||
(pKStk) adds r17=16,r17; /* skip over ar_rnat field */ \
|
||||
;; /* avoid RAW on r16 & r17 */ \
|
||||
(pUStk) st8 [r16]=r23,16; /* save ar.bspstore */ \
|
||||
st8 [r17]=r31,16; /* save predicates */ \
|
||||
(pKStk) adds r16=16,r16; /* skip over ar_bspstore field */ \
|
||||
;; \
|
||||
st8 [r16]=r29,16; /* save b0 */ \
|
||||
st8 [r17]=r18,16; /* save ar.rsc value for "loadrs" */ \
|
||||
cmp.eq pNonSys,pSys=r0,r0 /* initialize pSys=0, pNonSys=1 */ \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r20,16; /* save original r1 */ \
|
||||
.mem.offset 8,0; st8.spill [r17]=r12,16; \
|
||||
adds r12=-16,r1; /* switch to kernel memory stack (with 16 bytes of scratch) */ \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r13,16; \
|
||||
.mem.offset 8,0; st8.spill [r17]=r21,16; /* save ar.fpsr */ \
|
||||
mov r13=IA64_KR(CURRENT); /* establish `current' */ \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r15,16; \
|
||||
.mem.offset 8,0; st8.spill [r17]=r14,16; \
|
||||
;; \
|
||||
.mem.offset 0,0; st8.spill [r16]=r2,16; \
|
||||
.mem.offset 8,0; st8.spill [r17]=r3,16; \
|
||||
ACCOUNT_GET_STAMP \
|
||||
adds r2=IA64_PT_REGS_R16_OFFSET,r1; \
|
||||
;; \
|
||||
EXTRA; \
|
||||
movl r1=__gp; /* establish kernel global pointer */ \
|
||||
;; \
|
||||
ACCOUNT_SYS_ENTER \
|
||||
BSW_1(r3,r14); /* switch back to bank 1 (must be last in insn group) */ \
|
||||
;;
|
||||
65
arch/ia64/include/asm/xen/page.h
Normal file
65
arch/ia64/include/asm/xen/page.h
Normal file
@ -0,0 +1,65 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/include/asm/xen/page.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_PAGE_H
|
||||
#define _ASM_IA64_XEN_PAGE_H
|
||||
|
||||
#define INVALID_P2M_ENTRY (~0UL)
|
||||
|
||||
static inline unsigned long mfn_to_pfn(unsigned long mfn)
|
||||
{
|
||||
return mfn;
|
||||
}
|
||||
|
||||
static inline unsigned long pfn_to_mfn(unsigned long pfn)
|
||||
{
|
||||
return pfn;
|
||||
}
|
||||
|
||||
#define phys_to_machine_mapping_valid(_x) (1)
|
||||
|
||||
static inline void *mfn_to_virt(unsigned long mfn)
|
||||
{
|
||||
return __va(mfn << PAGE_SHIFT);
|
||||
}
|
||||
|
||||
static inline unsigned long virt_to_mfn(void *virt)
|
||||
{
|
||||
return __pa(virt) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
/* for tpmfront.c */
|
||||
static inline unsigned long virt_to_machine(void *virt)
|
||||
{
|
||||
return __pa(virt);
|
||||
}
|
||||
|
||||
static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
#define pte_mfn(_x) pte_pfn(_x)
|
||||
#define mfn_pte(_x, _y) __pte_ma(0) /* unmodified use */
|
||||
#define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */
|
||||
|
||||
#endif /* _ASM_IA64_XEN_PAGE_H */
|
||||
129
arch/ia64/include/asm/xen/privop.h
Normal file
129
arch/ia64/include/asm/xen/privop.h
Normal file
@ -0,0 +1,129 @@
|
||||
#ifndef _ASM_IA64_XEN_PRIVOP_H
|
||||
#define _ASM_IA64_XEN_PRIVOP_H
|
||||
|
||||
/*
|
||||
* Copyright (C) 2005 Hewlett-Packard Co
|
||||
* Dan Magenheimer <dan.magenheimer@hp.com>
|
||||
*
|
||||
* Paravirtualizations of privileged operations for Xen/ia64
|
||||
*
|
||||
*
|
||||
* inline privop and paravirt_alt support
|
||||
* Copyright (c) 2007 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
#include <linux/types.h> /* arch-ia64.h requires uint64_t */
|
||||
#endif
|
||||
#include <asm/xen/interface.h>
|
||||
|
||||
/* At 1 MB, before per-cpu space but still addressable using addl instead
|
||||
of movl. */
|
||||
#define XSI_BASE 0xfffffffffff00000
|
||||
|
||||
/* Address of mapped regs. */
|
||||
#define XMAPPEDREGS_BASE (XSI_BASE + XSI_SIZE)
|
||||
|
||||
#ifdef __ASSEMBLY__
|
||||
#define XEN_HYPER_RFI break HYPERPRIVOP_RFI
|
||||
#define XEN_HYPER_RSM_PSR_DT break HYPERPRIVOP_RSM_DT
|
||||
#define XEN_HYPER_SSM_PSR_DT break HYPERPRIVOP_SSM_DT
|
||||
#define XEN_HYPER_COVER break HYPERPRIVOP_COVER
|
||||
#define XEN_HYPER_ITC_D break HYPERPRIVOP_ITC_D
|
||||
#define XEN_HYPER_ITC_I break HYPERPRIVOP_ITC_I
|
||||
#define XEN_HYPER_SSM_I break HYPERPRIVOP_SSM_I
|
||||
#define XEN_HYPER_GET_IVR break HYPERPRIVOP_GET_IVR
|
||||
#define XEN_HYPER_THASH break HYPERPRIVOP_THASH
|
||||
#define XEN_HYPER_ITR_D break HYPERPRIVOP_ITR_D
|
||||
#define XEN_HYPER_SET_KR break HYPERPRIVOP_SET_KR
|
||||
#define XEN_HYPER_GET_PSR break HYPERPRIVOP_GET_PSR
|
||||
#define XEN_HYPER_SET_RR0_TO_RR4 break HYPERPRIVOP_SET_RR0_TO_RR4
|
||||
|
||||
#define XSI_IFS (XSI_BASE + XSI_IFS_OFS)
|
||||
#define XSI_PRECOVER_IFS (XSI_BASE + XSI_PRECOVER_IFS_OFS)
|
||||
#define XSI_IFA (XSI_BASE + XSI_IFA_OFS)
|
||||
#define XSI_ISR (XSI_BASE + XSI_ISR_OFS)
|
||||
#define XSI_IIM (XSI_BASE + XSI_IIM_OFS)
|
||||
#define XSI_ITIR (XSI_BASE + XSI_ITIR_OFS)
|
||||
#define XSI_PSR_I_ADDR (XSI_BASE + XSI_PSR_I_ADDR_OFS)
|
||||
#define XSI_PSR_IC (XSI_BASE + XSI_PSR_IC_OFS)
|
||||
#define XSI_IPSR (XSI_BASE + XSI_IPSR_OFS)
|
||||
#define XSI_IIP (XSI_BASE + XSI_IIP_OFS)
|
||||
#define XSI_B1NAT (XSI_BASE + XSI_B1NATS_OFS)
|
||||
#define XSI_BANK1_R16 (XSI_BASE + XSI_BANK1_R16_OFS)
|
||||
#define XSI_BANKNUM (XSI_BASE + XSI_BANKNUM_OFS)
|
||||
#define XSI_IHA (XSI_BASE + XSI_IHA_OFS)
|
||||
#endif
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/************************************************/
|
||||
/* Instructions paravirtualized for correctness */
|
||||
/************************************************/
|
||||
|
||||
/* "fc" and "thash" are privilege-sensitive instructions, meaning they
|
||||
* may have different semantics depending on whether they are executed
|
||||
* at PL0 vs PL!=0. When paravirtualized, these instructions mustn't
|
||||
* be allowed to execute directly, lest incorrect semantics result. */
|
||||
extern void xen_fc(unsigned long addr);
|
||||
extern unsigned long xen_thash(unsigned long addr);
|
||||
|
||||
/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag"
|
||||
* is not currently used (though it may be in a long-format VHPT system!)
|
||||
* and the semantics of cover only change if psr.ic is off which is very
|
||||
* rare (and currently non-existent outside of assembly code */
|
||||
|
||||
/* There are also privilege-sensitive registers. These registers are
|
||||
* readable at any privilege level but only writable at PL0. */
|
||||
extern unsigned long xen_get_cpuid(int index);
|
||||
extern unsigned long xen_get_pmd(int index);
|
||||
|
||||
extern unsigned long xen_get_eflag(void); /* see xen_ia64_getreg */
|
||||
extern void xen_set_eflag(unsigned long); /* see xen_ia64_setreg */
|
||||
|
||||
/************************************************/
|
||||
/* Instructions paravirtualized for performance */
|
||||
/************************************************/
|
||||
|
||||
/* Xen uses memory-mapped virtual privileged registers for access to many
|
||||
* performance-sensitive privileged registers. Some, like the processor
|
||||
* status register (psr), are broken up into multiple memory locations.
|
||||
* Others, like "pend", are abstractions based on privileged registers.
|
||||
* "Pend" is guaranteed to be set if reading cr.ivr would return a
|
||||
* (non-spurious) interrupt. */
|
||||
#define XEN_MAPPEDREGS ((struct mapped_regs *)XMAPPEDREGS_BASE)
|
||||
|
||||
#define XSI_PSR_I \
|
||||
(*XEN_MAPPEDREGS->interrupt_mask_addr)
|
||||
#define xen_get_virtual_psr_i() \
|
||||
(!XSI_PSR_I)
|
||||
#define xen_set_virtual_psr_i(_val) \
|
||||
({ XSI_PSR_I = (uint8_t)(_val) ? 0 : 1; })
|
||||
#define xen_set_virtual_psr_ic(_val) \
|
||||
({ XEN_MAPPEDREGS->interrupt_collection_enabled = _val ? 1 : 0; })
|
||||
#define xen_get_virtual_pend() \
|
||||
(*(((uint8_t *)XEN_MAPPEDREGS->interrupt_mask_addr) - 1))
|
||||
|
||||
/* Although all privileged operations can be left to trap and will
|
||||
* be properly handled by Xen, some are frequent enough that we use
|
||||
* hyperprivops for performance. */
|
||||
extern unsigned long xen_get_psr(void);
|
||||
extern unsigned long xen_get_ivr(void);
|
||||
extern unsigned long xen_get_tpr(void);
|
||||
extern void xen_hyper_ssm_i(void);
|
||||
extern void xen_set_itm(unsigned long);
|
||||
extern void xen_set_tpr(unsigned long);
|
||||
extern void xen_eoi(unsigned long);
|
||||
extern unsigned long xen_get_rr(unsigned long index);
|
||||
extern void xen_set_rr(unsigned long index, unsigned long val);
|
||||
extern void xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
|
||||
unsigned long val2, unsigned long val3,
|
||||
unsigned long val4);
|
||||
extern void xen_set_kr(unsigned long index, unsigned long val);
|
||||
extern void xen_ptcga(unsigned long addr, unsigned long size);
|
||||
|
||||
#endif /* !__ASSEMBLY__ */
|
||||
|
||||
#endif /* _ASM_IA64_XEN_PRIVOP_H */
|
||||
51
arch/ia64/include/asm/xen/xcom_hcall.h
Normal file
51
arch/ia64/include/asm/xen/xcom_hcall.h
Normal file
@ -0,0 +1,51 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Tristan Gingold <tristan.gingold@bull.net>, Bull SAS
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_XCOM_HCALL_H
|
||||
#define _ASM_IA64_XEN_XCOM_HCALL_H
|
||||
|
||||
/* These function creates inline or mini descriptor for the parameters and
|
||||
calls the corresponding xencomm_arch_hypercall_X.
|
||||
Architectures should defines HYPERVISOR_xxx as xencomm_hypercall_xxx unless
|
||||
they want to use their own wrapper. */
|
||||
extern int xencomm_hypercall_console_io(int cmd, int count, char *str);
|
||||
|
||||
extern int xencomm_hypercall_event_channel_op(int cmd, void *op);
|
||||
|
||||
extern int xencomm_hypercall_xen_version(int cmd, void *arg);
|
||||
|
||||
extern int xencomm_hypercall_physdev_op(int cmd, void *op);
|
||||
|
||||
extern int xencomm_hypercall_grant_table_op(unsigned int cmd, void *op,
|
||||
unsigned int count);
|
||||
|
||||
extern int xencomm_hypercall_sched_op(int cmd, void *arg);
|
||||
|
||||
extern int xencomm_hypercall_multicall(void *call_list, int nr_calls);
|
||||
|
||||
extern int xencomm_hypercall_callback_op(int cmd, void *arg);
|
||||
|
||||
extern int xencomm_hypercall_memory_op(unsigned int cmd, void *arg);
|
||||
|
||||
extern int xencomm_hypercall_suspend(unsigned long srec);
|
||||
|
||||
extern long xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg);
|
||||
|
||||
extern long xencomm_hypercall_opt_feature(void *arg);
|
||||
|
||||
#endif /* _ASM_IA64_XEN_XCOM_HCALL_H */
|
||||
42
arch/ia64/include/asm/xen/xencomm.h
Normal file
42
arch/ia64/include/asm/xen/xencomm.h
Normal file
@ -0,0 +1,42 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Hollis Blanchard <hollisb@us.ibm.com>, IBM Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _ASM_IA64_XEN_XENCOMM_H
|
||||
#define _ASM_IA64_XEN_XENCOMM_H
|
||||
|
||||
#include <xen/xencomm.h>
|
||||
#include <asm/pgtable.h>
|
||||
|
||||
/* Must be called before any hypercall. */
|
||||
extern void xencomm_initialize(void);
|
||||
extern int xencomm_is_initialized(void);
|
||||
|
||||
/* Check if virtual contiguity means physical contiguity
|
||||
* where the passed address is a pointer value in virtual address.
|
||||
* On ia64, identity mapping area in region 7 or the piece of region 5
|
||||
* that is mapped by itr[IA64_TR_KERNEL]/dtr[IA64_TR_KERNEL]
|
||||
*/
|
||||
static inline int xencomm_is_phys_contiguous(unsigned long addr)
|
||||
{
|
||||
return (PAGE_OFFSET <= addr &&
|
||||
addr < (PAGE_OFFSET + (1UL << IA64_MAX_PHYS_BITS))) ||
|
||||
(KERNEL_START <= addr &&
|
||||
addr < KERNEL_START + KERNEL_TR_PAGE_SIZE);
|
||||
}
|
||||
|
||||
#endif /* _ASM_IA64_XEN_XENCOMM_H */
|
||||
@ -112,5 +112,23 @@ clean-files += $(objtree)/include/asm-ia64/nr-irqs.h
|
||||
ASM_PARAVIRT_OBJS = ivt.o entry.o
|
||||
define paravirtualized_native
|
||||
AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE
|
||||
AFLAGS_pvchk-sed-$(1) += -D__IA64_ASM_PARAVIRTUALIZED_PVCHECK
|
||||
extra-y += pvchk-$(1)
|
||||
endef
|
||||
$(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj))))
|
||||
|
||||
#
|
||||
# Checker for paravirtualizations of privileged operations.
|
||||
#
|
||||
quiet_cmd_pv_check_sed = PVCHK $@
|
||||
define cmd_pv_check_sed
|
||||
sed -f $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed $< > $@
|
||||
endef
|
||||
|
||||
$(obj)/pvchk-sed-%.s: $(src)/%.S $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed FORCE
|
||||
$(call if_changed_dep,as_s_S)
|
||||
$(obj)/pvchk-%.s: $(obj)/pvchk-sed-%.s FORCE
|
||||
$(call if_changed,pv_check_sed)
|
||||
$(obj)/pvchk-%.o: $(obj)/pvchk-%.s FORCE
|
||||
$(call if_changed,as_o_S)
|
||||
.PRECIOUS: $(obj)/pvchk-sed-%.s $(obj)/pvchk-%.s $(obj)/pvchk-%.o
|
||||
|
||||
@ -52,6 +52,7 @@
|
||||
#include <asm/numa.h>
|
||||
#include <asm/sal.h>
|
||||
#include <asm/cyclone.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
#define BAD_MADT_ENTRY(entry, end) ( \
|
||||
(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
|
||||
@ -121,6 +122,8 @@ acpi_get_sysname(void)
|
||||
return "uv";
|
||||
else
|
||||
return "sn2";
|
||||
} else if (xen_pv_domain() && !strcmp(hdr->oem_id, "XEN")) {
|
||||
return "xen";
|
||||
}
|
||||
|
||||
return "dig";
|
||||
@ -137,6 +140,8 @@ acpi_get_sysname(void)
|
||||
return "uv";
|
||||
# elif defined (CONFIG_IA64_DIG)
|
||||
return "dig";
|
||||
# elif defined (CONFIG_IA64_XEN_GUEST)
|
||||
return "xen";
|
||||
# else
|
||||
# error Unknown platform. Fix acpi.c.
|
||||
# endif
|
||||
|
||||
@ -16,6 +16,9 @@
|
||||
#include <asm/sigcontext.h>
|
||||
#include <asm/mca.h>
|
||||
|
||||
#include <asm/xen/interface.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
#include "../kernel/sigframe.h"
|
||||
#include "../kernel/fsyscall_gtod_data.h"
|
||||
|
||||
@ -286,4 +289,32 @@ void foo(void)
|
||||
offsetof (struct itc_jitter_data_t, itc_jitter));
|
||||
DEFINE(IA64_ITC_LASTCYCLE_OFFSET,
|
||||
offsetof (struct itc_jitter_data_t, itc_lastcycle));
|
||||
|
||||
#ifdef CONFIG_XEN
|
||||
BLANK();
|
||||
|
||||
DEFINE(XEN_NATIVE_ASM, XEN_NATIVE);
|
||||
DEFINE(XEN_PV_DOMAIN_ASM, XEN_PV_DOMAIN);
|
||||
|
||||
#define DEFINE_MAPPED_REG_OFS(sym, field) \
|
||||
DEFINE(sym, (XMAPPEDREGS_OFS + offsetof(struct mapped_regs, field)))
|
||||
|
||||
DEFINE_MAPPED_REG_OFS(XSI_PSR_I_ADDR_OFS, interrupt_mask_addr);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IPSR_OFS, ipsr);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IIP_OFS, iip);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IFS_OFS, ifs);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_PRECOVER_IFS_OFS, precover_ifs);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_ISR_OFS, isr);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IFA_OFS, ifa);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IIPA_OFS, iipa);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IIM_OFS, iim);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_IHA_OFS, iha);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_ITIR_OFS, itir);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_PSR_IC_OFS, interrupt_collection_enabled);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_BANKNUM_OFS, banknum);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_BANK0_R16_OFS, bank0_regs[0]);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_BANK1_R16_OFS, bank1_regs[0]);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_B0NATS_OFS, vbnat);
|
||||
DEFINE_MAPPED_REG_OFS(XSI_B1NATS_OFS, vnat);
|
||||
#endif /* CONFIG_XEN */
|
||||
}
|
||||
|
||||
@ -580,7 +580,7 @@ ENTRY(dirty_bit)
|
||||
mov b0=r29 // restore b0
|
||||
;;
|
||||
st8 [r17]=r18 // store back updated PTE
|
||||
itc.d r18 // install updated PTE
|
||||
ITC_D(p0, r18, r16) // install updated PTE
|
||||
#endif
|
||||
mov pr=r31,-1 // restore pr
|
||||
RFI
|
||||
@ -646,7 +646,7 @@ ENTRY(iaccess_bit)
|
||||
mov b0=r29 // restore b0
|
||||
;;
|
||||
st8 [r17]=r18 // store back updated PTE
|
||||
itc.i r18 // install updated PTE
|
||||
ITC_I(p0, r18, r16) // install updated PTE
|
||||
#endif /* !CONFIG_SMP */
|
||||
mov pr=r31,-1
|
||||
RFI
|
||||
@ -698,7 +698,7 @@ ENTRY(daccess_bit)
|
||||
or r18=_PAGE_A,r18 // set the accessed bit
|
||||
;;
|
||||
st8 [r17]=r18 // store back updated PTE
|
||||
itc.d r18 // install updated PTE
|
||||
ITC_D(p0, r18, r16) // install updated PTE
|
||||
#endif
|
||||
mov b0=r29 // restore b0
|
||||
mov pr=r31,-1
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
#include <linux/kbuild.h>
|
||||
#include <linux/threads.h>
|
||||
#include <asm/native/irq.h>
|
||||
#include <asm/xen/irq.h>
|
||||
|
||||
void foo(void)
|
||||
{
|
||||
|
||||
@ -332,7 +332,7 @@ ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
|
||||
|
||||
struct pv_iosapic_ops pv_iosapic_ops = {
|
||||
.pcat_compat_init = ia64_native_iosapic_pcat_compat_init,
|
||||
.get_irq_chip = ia64_native_iosapic_get_irq_chip,
|
||||
.__get_irq_chip = ia64_native_iosapic_get_irq_chip,
|
||||
|
||||
.__read = ia64_native_iosapic_read,
|
||||
.__write = ia64_native_iosapic_write,
|
||||
|
||||
@ -20,7 +20,9 @@
|
||||
*
|
||||
*/
|
||||
|
||||
#ifdef __IA64_ASM_PARAVIRTUALIZED_XEN
|
||||
#ifdef __IA64_ASM_PARAVIRTUALIZED_PVCHECK
|
||||
#include <asm/native/pvchk_inst.h>
|
||||
#elif defined(__IA64_ASM_PARAVIRTUALIZED_XEN)
|
||||
#include <asm/xen/inst.h>
|
||||
#include <asm/xen/minstate.h>
|
||||
#else
|
||||
|
||||
@ -242,7 +242,6 @@ default_idle (void)
|
||||
/* We don't actually take CPU down, just spin without interrupts. */
|
||||
static inline void play_dead(void)
|
||||
{
|
||||
extern void ia64_cpu_local_tick (void);
|
||||
unsigned int this_cpu = smp_processor_id();
|
||||
|
||||
/* Ack it */
|
||||
|
||||
32
arch/ia64/scripts/pvcheck.sed
Normal file
32
arch/ia64/scripts/pvcheck.sed
Normal file
@ -0,0 +1,32 @@
|
||||
#
|
||||
# Checker for paravirtualizations of privileged operations.
|
||||
#
|
||||
s/ssm.*psr\.ic.*/.warning \"ssm psr.ic should not be used directly\"/g
|
||||
s/rsm.*psr\.ic.*/.warning \"rsm psr.ic should not be used directly\"/g
|
||||
s/ssm.*psr\.i.*/.warning \"ssm psr.i should not be used directly\"/g
|
||||
s/rsm.*psr\.i.*/.warning \"rsm psr.i should not be used directly\"/g
|
||||
s/ssm.*psr\.dt.*/.warning \"ssm psr.dt should not be used directly\"/g
|
||||
s/rsm.*psr\.dt.*/.warning \"rsm psr.dt should not be used directly\"/g
|
||||
s/mov.*=.*cr\.ifa/.warning \"cr.ifa should not used directly\"/g
|
||||
s/mov.*=.*cr\.itir/.warning \"cr.itir should not used directly\"/g
|
||||
s/mov.*=.*cr\.isr/.warning \"cr.isr should not used directly\"/g
|
||||
s/mov.*=.*cr\.iha/.warning \"cr.iha should not used directly\"/g
|
||||
s/mov.*=.*cr\.ipsr/.warning \"cr.ipsr should not used directly\"/g
|
||||
s/mov.*=.*cr\.iim/.warning \"cr.iim should not used directly\"/g
|
||||
s/mov.*=.*cr\.iip/.warning \"cr.iip should not used directly\"/g
|
||||
s/mov.*=.*cr\.ivr/.warning \"cr.ivr should not used directly\"/g
|
||||
s/mov.*=[^\.]*psr/.warning \"psr should not used directly\"/g # avoid ar.fpsr
|
||||
s/mov.*=.*ar\.eflags/.warning \"ar.eflags should not used directly\"/g
|
||||
s/mov.*cr\.ifa.*=.*/.warning \"cr.ifa should not used directly\"/g
|
||||
s/mov.*cr\.itir.*=.*/.warning \"cr.itir should not used directly\"/g
|
||||
s/mov.*cr\.iha.*=.*/.warning \"cr.iha should not used directly\"/g
|
||||
s/mov.*cr\.ipsr.*=.*/.warning \"cr.ipsr should not used directly\"/g
|
||||
s/mov.*cr\.ifs.*=.*/.warning \"cr.ifs should not used directly\"/g
|
||||
s/mov.*cr\.iip.*=.*/.warning \"cr.iip should not used directly\"/g
|
||||
s/mov.*cr\.kr.*=.*/.warning \"cr.kr should not used directly\"/g
|
||||
s/mov.*ar\.eflags.*=.*/.warning \"ar.eflags should not used directly\"/g
|
||||
s/itc\.i.*/.warning \"itc.i should not be used directly.\"/g
|
||||
s/itc\.d.*/.warning \"itc.d should not be used directly.\"/g
|
||||
s/bsw\.0/.warning \"bsw.0 should not be used directly.\"/g
|
||||
s/bsw\.1/.warning \"bsw.1 should not be used directly.\"/g
|
||||
s/ptc\.ga.*/.warning \"ptc.ga should not be used directly.\"/g
|
||||
26
arch/ia64/xen/Kconfig
Normal file
26
arch/ia64/xen/Kconfig
Normal file
@ -0,0 +1,26 @@
|
||||
#
|
||||
# This Kconfig describes xen/ia64 options
|
||||
#
|
||||
|
||||
config XEN
|
||||
bool "Xen hypervisor support"
|
||||
default y
|
||||
depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL
|
||||
select XEN_XENCOMM
|
||||
select NO_IDLE_HZ
|
||||
|
||||
# those are required to save/restore.
|
||||
select ARCH_SUSPEND_POSSIBLE
|
||||
select SUSPEND
|
||||
select PM_SLEEP
|
||||
help
|
||||
Enable Xen hypervisor support. Resulting kernel runs
|
||||
both as a guest OS on Xen and natively on hardware.
|
||||
|
||||
config XEN_XENCOMM
|
||||
depends on XEN
|
||||
bool
|
||||
|
||||
config NO_IDLE_HZ
|
||||
depends on XEN
|
||||
bool
|
||||
22
arch/ia64/xen/Makefile
Normal file
22
arch/ia64/xen/Makefile
Normal file
@ -0,0 +1,22 @@
|
||||
#
|
||||
# Makefile for Xen components
|
||||
#
|
||||
|
||||
obj-y := hypercall.o xenivt.o xensetup.o xen_pv_ops.o irq_xen.o \
|
||||
hypervisor.o xencomm.o xcom_hcall.o grant-table.o time.o suspend.o
|
||||
|
||||
obj-$(CONFIG_IA64_GENERIC) += machvec.o
|
||||
|
||||
AFLAGS_xenivt.o += -D__IA64_ASM_PARAVIRTUALIZED_XEN
|
||||
|
||||
# xen multi compile
|
||||
ASM_PARAVIRT_MULTI_COMPILE_SRCS = ivt.S entry.S
|
||||
ASM_PARAVIRT_OBJS = $(addprefix xen-,$(ASM_PARAVIRT_MULTI_COMPILE_SRCS:.S=.o))
|
||||
obj-y += $(ASM_PARAVIRT_OBJS)
|
||||
define paravirtualized_xen
|
||||
AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_XEN
|
||||
endef
|
||||
$(foreach o,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_xen,$(o))))
|
||||
|
||||
$(obj)/xen-%.o: $(src)/../kernel/%.S FORCE
|
||||
$(call if_changed_dep,as_o_S)
|
||||
155
arch/ia64/xen/grant-table.c
Normal file
155
arch/ia64/xen/grant-table.c
Normal file
@ -0,0 +1,155 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/grant-table.c
|
||||
*
|
||||
* Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/mm.h>
|
||||
|
||||
#include <xen/interface/xen.h>
|
||||
#include <xen/interface/memory.h>
|
||||
#include <xen/grant_table.h>
|
||||
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
struct vm_struct *xen_alloc_vm_area(unsigned long size)
|
||||
{
|
||||
int order;
|
||||
unsigned long virt;
|
||||
unsigned long nr_pages;
|
||||
struct vm_struct *area;
|
||||
|
||||
order = get_order(size);
|
||||
virt = __get_free_pages(GFP_KERNEL, order);
|
||||
if (virt == 0)
|
||||
goto err0;
|
||||
nr_pages = 1 << order;
|
||||
scrub_pages(virt, nr_pages);
|
||||
|
||||
area = kmalloc(sizeof(*area), GFP_KERNEL);
|
||||
if (area == NULL)
|
||||
goto err1;
|
||||
|
||||
area->flags = VM_IOREMAP;
|
||||
area->addr = (void *)virt;
|
||||
area->size = size;
|
||||
area->pages = NULL;
|
||||
area->nr_pages = nr_pages;
|
||||
area->phys_addr = 0; /* xenbus_map_ring_valloc uses this field! */
|
||||
|
||||
return area;
|
||||
|
||||
err1:
|
||||
free_pages(virt, order);
|
||||
err0:
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xen_alloc_vm_area);
|
||||
|
||||
void xen_free_vm_area(struct vm_struct *area)
|
||||
{
|
||||
unsigned int order = get_order(area->size);
|
||||
unsigned long i;
|
||||
unsigned long phys_addr = __pa(area->addr);
|
||||
|
||||
/* This area is used for foreign page mappping.
|
||||
* So underlying machine page may not be assigned. */
|
||||
for (i = 0; i < (1 << order); i++) {
|
||||
unsigned long ret;
|
||||
unsigned long gpfn = (phys_addr >> PAGE_SHIFT) + i;
|
||||
struct xen_memory_reservation reservation = {
|
||||
.nr_extents = 1,
|
||||
.address_bits = 0,
|
||||
.extent_order = 0,
|
||||
.domid = DOMID_SELF
|
||||
};
|
||||
set_xen_guest_handle(reservation.extent_start, &gpfn);
|
||||
ret = HYPERVISOR_memory_op(XENMEM_populate_physmap,
|
||||
&reservation);
|
||||
BUG_ON(ret != 1);
|
||||
}
|
||||
free_pages((unsigned long)area->addr, order);
|
||||
kfree(area);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xen_free_vm_area);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* grant table hack
|
||||
* cmd: GNTTABOP_xxx
|
||||
*/
|
||||
|
||||
int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
|
||||
unsigned long max_nr_gframes,
|
||||
struct grant_entry **__shared)
|
||||
{
|
||||
*__shared = __va(frames[0] << PAGE_SHIFT);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void arch_gnttab_unmap_shared(struct grant_entry *shared,
|
||||
unsigned long nr_gframes)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
static void
|
||||
gnttab_map_grant_ref_pre(struct gnttab_map_grant_ref *uop)
|
||||
{
|
||||
uint32_t flags;
|
||||
|
||||
flags = uop->flags;
|
||||
|
||||
if (flags & GNTMAP_host_map) {
|
||||
if (flags & GNTMAP_application_map) {
|
||||
printk(KERN_DEBUG
|
||||
"GNTMAP_application_map is not supported yet: "
|
||||
"flags 0x%x\n", flags);
|
||||
BUG();
|
||||
}
|
||||
if (flags & GNTMAP_contains_pte) {
|
||||
printk(KERN_DEBUG
|
||||
"GNTMAP_contains_pte is not supported yet: "
|
||||
"flags 0x%x\n", flags);
|
||||
BUG();
|
||||
}
|
||||
} else if (flags & GNTMAP_device_map) {
|
||||
printk("GNTMAP_device_map is not supported yet 0x%x\n", flags);
|
||||
BUG(); /* not yet. actually this flag is not used. */
|
||||
} else {
|
||||
BUG();
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count)
|
||||
{
|
||||
if (cmd == GNTTABOP_map_grant_ref) {
|
||||
unsigned int i;
|
||||
for (i = 0; i < count; i++) {
|
||||
gnttab_map_grant_ref_pre(
|
||||
(struct gnttab_map_grant_ref *)uop + i);
|
||||
}
|
||||
}
|
||||
return xencomm_hypercall_grant_table_op(cmd, uop, count);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(HYPERVISOR_grant_table_op);
|
||||
91
arch/ia64/xen/hypercall.S
Normal file
91
arch/ia64/xen/hypercall.S
Normal file
@ -0,0 +1,91 @@
|
||||
/*
|
||||
* Support routines for Xen hypercalls
|
||||
*
|
||||
* Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com>
|
||||
* Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com>
|
||||
*/
|
||||
|
||||
#include <asm/asmmacro.h>
|
||||
#include <asm/intrinsics.h>
|
||||
#include <asm/xen/privop.h>
|
||||
|
||||
/*
|
||||
* Hypercalls without parameter.
|
||||
*/
|
||||
#define __HCALL0(name,hcall) \
|
||||
GLOBAL_ENTRY(name); \
|
||||
break hcall; \
|
||||
br.ret.sptk.many rp; \
|
||||
END(name)
|
||||
|
||||
/*
|
||||
* Hypercalls with 1 parameter.
|
||||
*/
|
||||
#define __HCALL1(name,hcall) \
|
||||
GLOBAL_ENTRY(name); \
|
||||
mov r8=r32; \
|
||||
break hcall; \
|
||||
br.ret.sptk.many rp; \
|
||||
END(name)
|
||||
|
||||
/*
|
||||
* Hypercalls with 2 parameters.
|
||||
*/
|
||||
#define __HCALL2(name,hcall) \
|
||||
GLOBAL_ENTRY(name); \
|
||||
mov r8=r32; \
|
||||
mov r9=r33; \
|
||||
break hcall; \
|
||||
br.ret.sptk.many rp; \
|
||||
END(name)
|
||||
|
||||
__HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR)
|
||||
__HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR)
|
||||
__HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR)
|
||||
__HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I)
|
||||
|
||||
__HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR)
|
||||
__HCALL1(xen_eoi, HYPERPRIVOP_EOI)
|
||||
__HCALL1(xen_thash, HYPERPRIVOP_THASH)
|
||||
__HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM)
|
||||
__HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR)
|
||||
__HCALL1(xen_fc, HYPERPRIVOP_FC)
|
||||
__HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID)
|
||||
__HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD)
|
||||
|
||||
__HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
|
||||
__HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
|
||||
__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
|
||||
|
||||
#ifdef CONFIG_IA32_SUPPORT
|
||||
__HCALL1(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
|
||||
__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG) // refer SDM vol1 3.1.8
|
||||
#endif /* CONFIG_IA32_SUPPORT */
|
||||
|
||||
GLOBAL_ENTRY(xen_set_rr0_to_rr4)
|
||||
mov r8=r32
|
||||
mov r9=r33
|
||||
mov r10=r34
|
||||
mov r11=r35
|
||||
mov r14=r36
|
||||
XEN_HYPER_SET_RR0_TO_RR4
|
||||
br.ret.sptk.many rp
|
||||
;;
|
||||
END(xen_set_rr0_to_rr4)
|
||||
|
||||
GLOBAL_ENTRY(xen_send_ipi)
|
||||
mov r14=r32
|
||||
mov r15=r33
|
||||
mov r2=0x400
|
||||
break 0x1000
|
||||
;;
|
||||
br.ret.sptk.many rp
|
||||
;;
|
||||
END(xen_send_ipi)
|
||||
|
||||
GLOBAL_ENTRY(__hypercall)
|
||||
mov r2=r37
|
||||
break 0x1000
|
||||
br.ret.sptk.many b0
|
||||
;;
|
||||
END(__hypercall)
|
||||
96
arch/ia64/xen/hypervisor.c
Normal file
96
arch/ia64/xen/hypervisor.c
Normal file
@ -0,0 +1,96 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/hypervisor.c
|
||||
*
|
||||
* Copyright (c) 2006 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/efi.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include <asm/xen/privop.h>
|
||||
|
||||
#include "irq_xen.h"
|
||||
|
||||
struct shared_info *HYPERVISOR_shared_info __read_mostly =
|
||||
(struct shared_info *)XSI_BASE;
|
||||
EXPORT_SYMBOL(HYPERVISOR_shared_info);
|
||||
|
||||
DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu);
|
||||
|
||||
struct start_info *xen_start_info;
|
||||
EXPORT_SYMBOL(xen_start_info);
|
||||
|
||||
EXPORT_SYMBOL(xen_domain_type);
|
||||
|
||||
EXPORT_SYMBOL(__hypercall);
|
||||
|
||||
/* Stolen from arch/x86/xen/enlighten.c */
|
||||
/*
|
||||
* Flag to determine whether vcpu info placement is available on all
|
||||
* VCPUs. We assume it is to start with, and then set it to zero on
|
||||
* the first failure. This is because it can succeed on some VCPUs
|
||||
* and not others, since it can involve hypervisor memory allocation,
|
||||
* or because the guest failed to guarantee all the appropriate
|
||||
* constraints on all VCPUs (ie buffer can't cross a page boundary).
|
||||
*
|
||||
* Note that any particular CPU may be using a placed vcpu structure,
|
||||
* but we can only optimise if the all are.
|
||||
*
|
||||
* 0: not available, 1: available
|
||||
*/
|
||||
|
||||
static void __init xen_vcpu_setup(int cpu)
|
||||
{
|
||||
/*
|
||||
* WARNING:
|
||||
* before changing MAX_VIRT_CPUS,
|
||||
* check that shared_info fits on a page
|
||||
*/
|
||||
BUILD_BUG_ON(sizeof(struct shared_info) > PAGE_SIZE);
|
||||
per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu];
|
||||
}
|
||||
|
||||
void __init xen_setup_vcpu_info_placement(void)
|
||||
{
|
||||
int cpu;
|
||||
|
||||
for_each_possible_cpu(cpu)
|
||||
xen_vcpu_setup(cpu);
|
||||
}
|
||||
|
||||
void __cpuinit
|
||||
xen_cpu_init(void)
|
||||
{
|
||||
xen_smp_intr_init();
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* opt feature
|
||||
*/
|
||||
void
|
||||
xen_ia64_enable_opt_feature(void)
|
||||
{
|
||||
/* Enable region 7 identity map optimizations in Xen */
|
||||
struct xen_ia64_opt_feature optf;
|
||||
|
||||
optf.cmd = XEN_IA64_OPTF_IDENT_MAP_REG7;
|
||||
optf.on = XEN_IA64_OPTF_ON;
|
||||
optf.pgprot = pgprot_val(PAGE_KERNEL);
|
||||
optf.key = 0; /* No key on linux. */
|
||||
HYPERVISOR_opt_feature(&optf);
|
||||
}
|
||||
435
arch/ia64/xen/irq_xen.c
Normal file
435
arch/ia64/xen/irq_xen.c
Normal file
@ -0,0 +1,435 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/irq_xen.c
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/cpu.h>
|
||||
|
||||
#include <xen/interface/xen.h>
|
||||
#include <xen/interface/callback.h>
|
||||
#include <xen/events.h>
|
||||
|
||||
#include <asm/xen/privop.h>
|
||||
|
||||
#include "irq_xen.h"
|
||||
|
||||
/***************************************************************************
|
||||
* pv_irq_ops
|
||||
* irq operations
|
||||
*/
|
||||
|
||||
static int
|
||||
xen_assign_irq_vector(int irq)
|
||||
{
|
||||
struct physdev_irq irq_op;
|
||||
|
||||
irq_op.irq = irq;
|
||||
if (HYPERVISOR_physdev_op(PHYSDEVOP_alloc_irq_vector, &irq_op))
|
||||
return -ENOSPC;
|
||||
|
||||
return irq_op.vector;
|
||||
}
|
||||
|
||||
static void
|
||||
xen_free_irq_vector(int vector)
|
||||
{
|
||||
struct physdev_irq irq_op;
|
||||
|
||||
if (vector < IA64_FIRST_DEVICE_VECTOR ||
|
||||
vector > IA64_LAST_DEVICE_VECTOR)
|
||||
return;
|
||||
|
||||
irq_op.vector = vector;
|
||||
if (HYPERVISOR_physdev_op(PHYSDEVOP_free_irq_vector, &irq_op))
|
||||
printk(KERN_WARNING "%s: xen_free_irq_vecotr fail vector=%d\n",
|
||||
__func__, vector);
|
||||
}
|
||||
|
||||
|
||||
static DEFINE_PER_CPU(int, timer_irq) = -1;
|
||||
static DEFINE_PER_CPU(int, ipi_irq) = -1;
|
||||
static DEFINE_PER_CPU(int, resched_irq) = -1;
|
||||
static DEFINE_PER_CPU(int, cmc_irq) = -1;
|
||||
static DEFINE_PER_CPU(int, cmcp_irq) = -1;
|
||||
static DEFINE_PER_CPU(int, cpep_irq) = -1;
|
||||
#define NAME_SIZE 15
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], timer_name);
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], ipi_name);
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], resched_name);
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], cmc_name);
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], cmcp_name);
|
||||
static DEFINE_PER_CPU(char[NAME_SIZE], cpep_name);
|
||||
#undef NAME_SIZE
|
||||
|
||||
struct saved_irq {
|
||||
unsigned int irq;
|
||||
struct irqaction *action;
|
||||
};
|
||||
/* 16 should be far optimistic value, since only several percpu irqs
|
||||
* are registered early.
|
||||
*/
|
||||
#define MAX_LATE_IRQ 16
|
||||
static struct saved_irq saved_percpu_irqs[MAX_LATE_IRQ];
|
||||
static unsigned short late_irq_cnt;
|
||||
static unsigned short saved_irq_cnt;
|
||||
static int xen_slab_ready;
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
/* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
|
||||
* it ends up to issue several memory accesses upon percpu data and
|
||||
* thus adds unnecessary traffic to other paths.
|
||||
*/
|
||||
static irqreturn_t
|
||||
xen_dummy_handler(int irq, void *dev_id)
|
||||
{
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static struct irqaction xen_ipi_irqaction = {
|
||||
.handler = handle_IPI,
|
||||
.flags = IRQF_DISABLED,
|
||||
.name = "IPI"
|
||||
};
|
||||
|
||||
static struct irqaction xen_resched_irqaction = {
|
||||
.handler = xen_dummy_handler,
|
||||
.flags = IRQF_DISABLED,
|
||||
.name = "resched"
|
||||
};
|
||||
|
||||
static struct irqaction xen_tlb_irqaction = {
|
||||
.handler = xen_dummy_handler,
|
||||
.flags = IRQF_DISABLED,
|
||||
.name = "tlb_flush"
|
||||
};
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This is xen version percpu irq registration, which needs bind
|
||||
* to xen specific evtchn sub-system. One trick here is that xen
|
||||
* evtchn binding interface depends on kmalloc because related
|
||||
* port needs to be freed at device/cpu down. So we cache the
|
||||
* registration on BSP before slab is ready and then deal them
|
||||
* at later point. For rest instances happening after slab ready,
|
||||
* we hook them to xen evtchn immediately.
|
||||
*
|
||||
* FIXME: MCA is not supported by far, and thus "nomca" boot param is
|
||||
* required.
|
||||
*/
|
||||
static void
|
||||
__xen_register_percpu_irq(unsigned int cpu, unsigned int vec,
|
||||
struct irqaction *action, int save)
|
||||
{
|
||||
irq_desc_t *desc;
|
||||
int irq = 0;
|
||||
|
||||
if (xen_slab_ready) {
|
||||
switch (vec) {
|
||||
case IA64_TIMER_VECTOR:
|
||||
snprintf(per_cpu(timer_name, cpu),
|
||||
sizeof(per_cpu(timer_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_virq_to_irqhandler(VIRQ_ITC, cpu,
|
||||
action->handler, action->flags,
|
||||
per_cpu(timer_name, cpu), action->dev_id);
|
||||
per_cpu(timer_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_IPI_RESCHEDULE:
|
||||
snprintf(per_cpu(resched_name, cpu),
|
||||
sizeof(per_cpu(resched_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, cpu,
|
||||
action->handler, action->flags,
|
||||
per_cpu(resched_name, cpu), action->dev_id);
|
||||
per_cpu(resched_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_IPI_VECTOR:
|
||||
snprintf(per_cpu(ipi_name, cpu),
|
||||
sizeof(per_cpu(ipi_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_ipi_to_irqhandler(XEN_IPI_VECTOR, cpu,
|
||||
action->handler, action->flags,
|
||||
per_cpu(ipi_name, cpu), action->dev_id);
|
||||
per_cpu(ipi_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_CMC_VECTOR:
|
||||
snprintf(per_cpu(cmc_name, cpu),
|
||||
sizeof(per_cpu(cmc_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_virq_to_irqhandler(VIRQ_MCA_CMC, cpu,
|
||||
action->handler,
|
||||
action->flags,
|
||||
per_cpu(cmc_name, cpu),
|
||||
action->dev_id);
|
||||
per_cpu(cmc_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_CMCP_VECTOR:
|
||||
snprintf(per_cpu(cmcp_name, cpu),
|
||||
sizeof(per_cpu(cmcp_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_ipi_to_irqhandler(XEN_CMCP_VECTOR, cpu,
|
||||
action->handler,
|
||||
action->flags,
|
||||
per_cpu(cmcp_name, cpu),
|
||||
action->dev_id);
|
||||
per_cpu(cmcp_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_CPEP_VECTOR:
|
||||
snprintf(per_cpu(cpep_name, cpu),
|
||||
sizeof(per_cpu(cpep_name, cpu)),
|
||||
"%s%d", action->name, cpu);
|
||||
irq = bind_ipi_to_irqhandler(XEN_CPEP_VECTOR, cpu,
|
||||
action->handler,
|
||||
action->flags,
|
||||
per_cpu(cpep_name, cpu),
|
||||
action->dev_id);
|
||||
per_cpu(cpep_irq, cpu) = irq;
|
||||
break;
|
||||
case IA64_CPE_VECTOR:
|
||||
case IA64_MCA_RENDEZ_VECTOR:
|
||||
case IA64_PERFMON_VECTOR:
|
||||
case IA64_MCA_WAKEUP_VECTOR:
|
||||
case IA64_SPURIOUS_INT_VECTOR:
|
||||
/* No need to complain, these aren't supported. */
|
||||
break;
|
||||
default:
|
||||
printk(KERN_WARNING "Percpu irq %d is unsupported "
|
||||
"by xen!\n", vec);
|
||||
break;
|
||||
}
|
||||
BUG_ON(irq < 0);
|
||||
|
||||
if (irq > 0) {
|
||||
/*
|
||||
* Mark percpu. Without this, migrate_irqs() will
|
||||
* mark the interrupt for migrations and trigger it
|
||||
* on cpu hotplug.
|
||||
*/
|
||||
desc = irq_desc + irq;
|
||||
desc->status |= IRQ_PER_CPU;
|
||||
}
|
||||
}
|
||||
|
||||
/* For BSP, we cache registered percpu irqs, and then re-walk
|
||||
* them when initializing APs
|
||||
*/
|
||||
if (!cpu && save) {
|
||||
BUG_ON(saved_irq_cnt == MAX_LATE_IRQ);
|
||||
saved_percpu_irqs[saved_irq_cnt].irq = vec;
|
||||
saved_percpu_irqs[saved_irq_cnt].action = action;
|
||||
saved_irq_cnt++;
|
||||
if (!xen_slab_ready)
|
||||
late_irq_cnt++;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
xen_register_percpu_irq(ia64_vector vec, struct irqaction *action)
|
||||
{
|
||||
__xen_register_percpu_irq(smp_processor_id(), vec, action, 1);
|
||||
}
|
||||
|
||||
static void
|
||||
xen_bind_early_percpu_irq(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
xen_slab_ready = 1;
|
||||
/* There's no race when accessing this cached array, since only
|
||||
* BSP will face with such step shortly
|
||||
*/
|
||||
for (i = 0; i < late_irq_cnt; i++)
|
||||
__xen_register_percpu_irq(smp_processor_id(),
|
||||
saved_percpu_irqs[i].irq,
|
||||
saved_percpu_irqs[i].action, 0);
|
||||
}
|
||||
|
||||
/* FIXME: There's no obvious point to check whether slab is ready. So
|
||||
* a hack is used here by utilizing a late time hook.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
static int __devinit
|
||||
unbind_evtchn_callback(struct notifier_block *nfb,
|
||||
unsigned long action, void *hcpu)
|
||||
{
|
||||
unsigned int cpu = (unsigned long)hcpu;
|
||||
|
||||
if (action == CPU_DEAD) {
|
||||
/* Unregister evtchn. */
|
||||
if (per_cpu(cpep_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(cpep_irq, cpu), NULL);
|
||||
per_cpu(cpep_irq, cpu) = -1;
|
||||
}
|
||||
if (per_cpu(cmcp_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(cmcp_irq, cpu), NULL);
|
||||
per_cpu(cmcp_irq, cpu) = -1;
|
||||
}
|
||||
if (per_cpu(cmc_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(cmc_irq, cpu), NULL);
|
||||
per_cpu(cmc_irq, cpu) = -1;
|
||||
}
|
||||
if (per_cpu(ipi_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(ipi_irq, cpu), NULL);
|
||||
per_cpu(ipi_irq, cpu) = -1;
|
||||
}
|
||||
if (per_cpu(resched_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(resched_irq, cpu),
|
||||
NULL);
|
||||
per_cpu(resched_irq, cpu) = -1;
|
||||
}
|
||||
if (per_cpu(timer_irq, cpu) >= 0) {
|
||||
unbind_from_irqhandler(per_cpu(timer_irq, cpu), NULL);
|
||||
per_cpu(timer_irq, cpu) = -1;
|
||||
}
|
||||
}
|
||||
return NOTIFY_OK;
|
||||
}
|
||||
|
||||
static struct notifier_block unbind_evtchn_notifier = {
|
||||
.notifier_call = unbind_evtchn_callback,
|
||||
.priority = 0
|
||||
};
|
||||
#endif
|
||||
|
||||
void xen_smp_intr_init_early(unsigned int cpu)
|
||||
{
|
||||
#ifdef CONFIG_SMP
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < saved_irq_cnt; i++)
|
||||
__xen_register_percpu_irq(cpu, saved_percpu_irqs[i].irq,
|
||||
saved_percpu_irqs[i].action, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
void xen_smp_intr_init(void)
|
||||
{
|
||||
#ifdef CONFIG_SMP
|
||||
unsigned int cpu = smp_processor_id();
|
||||
struct callback_register event = {
|
||||
.type = CALLBACKTYPE_event,
|
||||
.address = { .ip = (unsigned long)&xen_event_callback },
|
||||
};
|
||||
|
||||
if (cpu == 0) {
|
||||
/* Initialization was already done for boot cpu. */
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
/* Register the notifier only once. */
|
||||
register_cpu_notifier(&unbind_evtchn_notifier);
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
/* This should be piggyback when setup vcpu guest context */
|
||||
BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event));
|
||||
#endif /* CONFIG_SMP */
|
||||
}
|
||||
|
||||
void __init
|
||||
xen_irq_init(void)
|
||||
{
|
||||
struct callback_register event = {
|
||||
.type = CALLBACKTYPE_event,
|
||||
.address = { .ip = (unsigned long)&xen_event_callback },
|
||||
};
|
||||
|
||||
xen_init_IRQ();
|
||||
BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event));
|
||||
late_time_init = xen_bind_early_percpu_irq;
|
||||
}
|
||||
|
||||
void
|
||||
xen_platform_send_ipi(int cpu, int vector, int delivery_mode, int redirect)
|
||||
{
|
||||
#ifdef CONFIG_SMP
|
||||
/* TODO: we need to call vcpu_up here */
|
||||
if (unlikely(vector == ap_wakeup_vector)) {
|
||||
/* XXX
|
||||
* This should be in __cpu_up(cpu) in ia64 smpboot.c
|
||||
* like x86. But don't want to modify it,
|
||||
* keep it untouched.
|
||||
*/
|
||||
xen_smp_intr_init_early(cpu);
|
||||
|
||||
xen_send_ipi(cpu, vector);
|
||||
/* vcpu_prepare_and_up(cpu); */
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
|
||||
switch (vector) {
|
||||
case IA64_IPI_VECTOR:
|
||||
xen_send_IPI_one(cpu, XEN_IPI_VECTOR);
|
||||
break;
|
||||
case IA64_IPI_RESCHEDULE:
|
||||
xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR);
|
||||
break;
|
||||
case IA64_CMCP_VECTOR:
|
||||
xen_send_IPI_one(cpu, XEN_CMCP_VECTOR);
|
||||
break;
|
||||
case IA64_CPEP_VECTOR:
|
||||
xen_send_IPI_one(cpu, XEN_CPEP_VECTOR);
|
||||
break;
|
||||
case IA64_TIMER_VECTOR: {
|
||||
/* this is used only once by check_sal_cache_flush()
|
||||
at boot time */
|
||||
static int used = 0;
|
||||
if (!used) {
|
||||
xen_send_ipi(cpu, IA64_TIMER_VECTOR);
|
||||
used = 1;
|
||||
break;
|
||||
}
|
||||
/* fallthrough */
|
||||
}
|
||||
default:
|
||||
printk(KERN_WARNING "Unsupported IPI type 0x%x\n",
|
||||
vector);
|
||||
notify_remote_via_irq(0); /* defaults to 0 irq */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void __init
|
||||
xen_register_ipi(void)
|
||||
{
|
||||
#ifdef CONFIG_SMP
|
||||
register_percpu_irq(IA64_IPI_VECTOR, &xen_ipi_irqaction);
|
||||
register_percpu_irq(IA64_IPI_RESCHEDULE, &xen_resched_irqaction);
|
||||
register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &xen_tlb_irqaction);
|
||||
#endif
|
||||
}
|
||||
|
||||
static void
|
||||
xen_resend_irq(unsigned int vector)
|
||||
{
|
||||
(void)resend_irq_on_evtchn(vector);
|
||||
}
|
||||
|
||||
const struct pv_irq_ops xen_irq_ops __initdata = {
|
||||
.register_ipi = xen_register_ipi,
|
||||
|
||||
.assign_irq_vector = xen_assign_irq_vector,
|
||||
.free_irq_vector = xen_free_irq_vector,
|
||||
.register_percpu_irq = xen_register_percpu_irq,
|
||||
|
||||
.resend_irq = xen_resend_irq,
|
||||
};
|
||||
34
arch/ia64/xen/irq_xen.h
Normal file
34
arch/ia64/xen/irq_xen.h
Normal file
@ -0,0 +1,34 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/irq_xen.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef IRQ_XEN_H
|
||||
#define IRQ_XEN_H
|
||||
|
||||
extern void (*late_time_init)(void);
|
||||
extern char xen_event_callback;
|
||||
void __init xen_init_IRQ(void);
|
||||
|
||||
extern const struct pv_irq_ops xen_irq_ops __initdata;
|
||||
extern void xen_smp_intr_init(void);
|
||||
extern void xen_send_ipi(int cpu, int vec);
|
||||
|
||||
#endif /* IRQ_XEN_H */
|
||||
4
arch/ia64/xen/machvec.c
Normal file
4
arch/ia64/xen/machvec.c
Normal file
@ -0,0 +1,4 @@
|
||||
#define MACHVEC_PLATFORM_NAME xen
|
||||
#define MACHVEC_PLATFORM_HEADER <asm/machvec_xen.h>
|
||||
#include <asm/machvec_init.h>
|
||||
|
||||
64
arch/ia64/xen/suspend.c
Normal file
64
arch/ia64/xen/suspend.c
Normal file
@ -0,0 +1,64 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/suspend.c
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* suspend/resume
|
||||
*/
|
||||
|
||||
#include <xen/xen-ops.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include "time.h"
|
||||
|
||||
void
|
||||
xen_mm_pin_all(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_mm_unpin_all(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void xen_pre_device_suspend(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_pre_suspend()
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
void
|
||||
xen_post_suspend(int suspend_cancelled)
|
||||
{
|
||||
if (suspend_cancelled)
|
||||
return;
|
||||
|
||||
xen_ia64_enable_opt_feature();
|
||||
/* add more if necessary */
|
||||
}
|
||||
|
||||
void xen_arch_resume(void)
|
||||
{
|
||||
xen_timer_resume_on_aps();
|
||||
}
|
||||
213
arch/ia64/xen/time.c
Normal file
213
arch/ia64/xen/time.c
Normal file
@ -0,0 +1,213 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/time.c
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/kernel_stat.h>
|
||||
#include <linux/posix-timers.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/clocksource.h>
|
||||
|
||||
#include <asm/timex.h>
|
||||
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
#include <xen/interface/vcpu.h>
|
||||
|
||||
#include "../kernel/fsyscall_gtod_data.h"
|
||||
|
||||
DEFINE_PER_CPU(struct vcpu_runstate_info, runstate);
|
||||
DEFINE_PER_CPU(unsigned long, processed_stolen_time);
|
||||
DEFINE_PER_CPU(unsigned long, processed_blocked_time);
|
||||
|
||||
/* taken from i386/kernel/time-xen.c */
|
||||
static void xen_init_missing_ticks_accounting(int cpu)
|
||||
{
|
||||
struct vcpu_register_runstate_memory_area area;
|
||||
struct vcpu_runstate_info *runstate = &per_cpu(runstate, cpu);
|
||||
int rc;
|
||||
|
||||
memset(runstate, 0, sizeof(*runstate));
|
||||
|
||||
area.addr.v = runstate;
|
||||
rc = HYPERVISOR_vcpu_op(VCPUOP_register_runstate_memory_area, cpu,
|
||||
&area);
|
||||
WARN_ON(rc && rc != -ENOSYS);
|
||||
|
||||
per_cpu(processed_blocked_time, cpu) = runstate->time[RUNSTATE_blocked];
|
||||
per_cpu(processed_stolen_time, cpu) = runstate->time[RUNSTATE_runnable]
|
||||
+ runstate->time[RUNSTATE_offline];
|
||||
}
|
||||
|
||||
/*
|
||||
* Runstate accounting
|
||||
*/
|
||||
/* stolen from arch/x86/xen/time.c */
|
||||
static void get_runstate_snapshot(struct vcpu_runstate_info *res)
|
||||
{
|
||||
u64 state_time;
|
||||
struct vcpu_runstate_info *state;
|
||||
|
||||
BUG_ON(preemptible());
|
||||
|
||||
state = &__get_cpu_var(runstate);
|
||||
|
||||
/*
|
||||
* The runstate info is always updated by the hypervisor on
|
||||
* the current CPU, so there's no need to use anything
|
||||
* stronger than a compiler barrier when fetching it.
|
||||
*/
|
||||
do {
|
||||
state_time = state->state_entry_time;
|
||||
rmb();
|
||||
*res = *state;
|
||||
rmb();
|
||||
} while (state->state_entry_time != state_time);
|
||||
}
|
||||
|
||||
#define NS_PER_TICK (1000000000LL/HZ)
|
||||
|
||||
static unsigned long
|
||||
consider_steal_time(unsigned long new_itm)
|
||||
{
|
||||
unsigned long stolen, blocked;
|
||||
unsigned long delta_itm = 0, stolentick = 0;
|
||||
int cpu = smp_processor_id();
|
||||
struct vcpu_runstate_info runstate;
|
||||
struct task_struct *p = current;
|
||||
|
||||
get_runstate_snapshot(&runstate);
|
||||
|
||||
/*
|
||||
* Check for vcpu migration effect
|
||||
* In this case, itc value is reversed.
|
||||
* This causes huge stolen value.
|
||||
* This function just checks and reject this effect.
|
||||
*/
|
||||
if (!time_after_eq(runstate.time[RUNSTATE_blocked],
|
||||
per_cpu(processed_blocked_time, cpu)))
|
||||
blocked = 0;
|
||||
|
||||
if (!time_after_eq(runstate.time[RUNSTATE_runnable] +
|
||||
runstate.time[RUNSTATE_offline],
|
||||
per_cpu(processed_stolen_time, cpu)))
|
||||
stolen = 0;
|
||||
|
||||
if (!time_after(delta_itm + new_itm, ia64_get_itc()))
|
||||
stolentick = ia64_get_itc() - new_itm;
|
||||
|
||||
do_div(stolentick, NS_PER_TICK);
|
||||
stolentick++;
|
||||
|
||||
do_div(stolen, NS_PER_TICK);
|
||||
|
||||
if (stolen > stolentick)
|
||||
stolen = stolentick;
|
||||
|
||||
stolentick -= stolen;
|
||||
do_div(blocked, NS_PER_TICK);
|
||||
|
||||
if (blocked > stolentick)
|
||||
blocked = stolentick;
|
||||
|
||||
if (stolen > 0 || blocked > 0) {
|
||||
account_steal_time(NULL, jiffies_to_cputime(stolen));
|
||||
account_steal_time(idle_task(cpu), jiffies_to_cputime(blocked));
|
||||
run_local_timers();
|
||||
|
||||
if (rcu_pending(cpu))
|
||||
rcu_check_callbacks(cpu, user_mode(get_irq_regs()));
|
||||
|
||||
scheduler_tick();
|
||||
run_posix_cpu_timers(p);
|
||||
delta_itm += local_cpu_data->itm_delta * (stolen + blocked);
|
||||
|
||||
if (cpu == time_keeper_id) {
|
||||
write_seqlock(&xtime_lock);
|
||||
do_timer(stolen + blocked);
|
||||
local_cpu_data->itm_next = delta_itm + new_itm;
|
||||
write_sequnlock(&xtime_lock);
|
||||
} else {
|
||||
local_cpu_data->itm_next = delta_itm + new_itm;
|
||||
}
|
||||
per_cpu(processed_stolen_time, cpu) += NS_PER_TICK * stolen;
|
||||
per_cpu(processed_blocked_time, cpu) += NS_PER_TICK * blocked;
|
||||
}
|
||||
return delta_itm;
|
||||
}
|
||||
|
||||
static int xen_do_steal_accounting(unsigned long *new_itm)
|
||||
{
|
||||
unsigned long delta_itm;
|
||||
delta_itm = consider_steal_time(*new_itm);
|
||||
*new_itm += delta_itm;
|
||||
if (time_after(*new_itm, ia64_get_itc()) && delta_itm)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void xen_itc_jitter_data_reset(void)
|
||||
{
|
||||
u64 lcycle, ret;
|
||||
|
||||
do {
|
||||
lcycle = itc_jitter_data.itc_lastcycle;
|
||||
ret = cmpxchg(&itc_jitter_data.itc_lastcycle, lcycle, 0);
|
||||
} while (unlikely(ret != lcycle));
|
||||
}
|
||||
|
||||
struct pv_time_ops xen_time_ops __initdata = {
|
||||
.init_missing_ticks_accounting = xen_init_missing_ticks_accounting,
|
||||
.do_steal_accounting = xen_do_steal_accounting,
|
||||
.clocksource_resume = xen_itc_jitter_data_reset,
|
||||
};
|
||||
|
||||
/* Called after suspend, to resume time. */
|
||||
static void xen_local_tick_resume(void)
|
||||
{
|
||||
/* Just trigger a tick. */
|
||||
ia64_cpu_local_tick();
|
||||
touch_softlockup_watchdog();
|
||||
}
|
||||
|
||||
void
|
||||
xen_timer_resume(void)
|
||||
{
|
||||
unsigned int cpu;
|
||||
|
||||
xen_local_tick_resume();
|
||||
|
||||
for_each_online_cpu(cpu)
|
||||
xen_init_missing_ticks_accounting(cpu);
|
||||
}
|
||||
|
||||
static void ia64_cpu_local_tick_fn(void *unused)
|
||||
{
|
||||
xen_local_tick_resume();
|
||||
xen_init_missing_ticks_accounting(smp_processor_id());
|
||||
}
|
||||
|
||||
void
|
||||
xen_timer_resume_on_aps(void)
|
||||
{
|
||||
smp_call_function(&ia64_cpu_local_tick_fn, NULL, 1);
|
||||
}
|
||||
24
arch/ia64/xen/time.h
Normal file
24
arch/ia64/xen/time.h
Normal file
@ -0,0 +1,24 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/time.h
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
extern struct pv_time_ops xen_time_ops __initdata;
|
||||
void xen_timer_resume_on_aps(void);
|
||||
441
arch/ia64/xen/xcom_hcall.c
Normal file
441
arch/ia64/xen/xcom_hcall.c
Normal file
@ -0,0 +1,441 @@
|
||||
/*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||||
*
|
||||
* Tristan Gingold <tristan.gingold@bull.net>
|
||||
*
|
||||
* Copyright (c) 2007
|
||||
* Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
* consolidate mini and inline version.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <xen/interface/xen.h>
|
||||
#include <xen/interface/memory.h>
|
||||
#include <xen/interface/grant_table.h>
|
||||
#include <xen/interface/callback.h>
|
||||
#include <xen/interface/vcpu.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include <asm/xen/xencomm.h>
|
||||
|
||||
/* Xencomm notes:
|
||||
* This file defines hypercalls to be used by xencomm. The hypercalls simply
|
||||
* create inlines or mini descriptors for pointers and then call the raw arch
|
||||
* hypercall xencomm_arch_hypercall_XXX
|
||||
*
|
||||
* If the arch wants to directly use these hypercalls, simply define macros
|
||||
* in asm/xen/hypercall.h, eg:
|
||||
* #define HYPERVISOR_sched_op xencomm_hypercall_sched_op
|
||||
*
|
||||
* The arch may also define HYPERVISOR_xxx as a function and do more operations
|
||||
* before/after doing the hypercall.
|
||||
*
|
||||
* Note: because only inline or mini descriptors are created these functions
|
||||
* must only be called with in kernel memory parameters.
|
||||
*/
|
||||
|
||||
int
|
||||
xencomm_hypercall_console_io(int cmd, int count, char *str)
|
||||
{
|
||||
/* xen early printk uses console io hypercall before
|
||||
* xencomm initialization. In that case, we just ignore it.
|
||||
*/
|
||||
if (!xencomm_is_initialized())
|
||||
return 0;
|
||||
|
||||
return xencomm_arch_hypercall_console_io
|
||||
(cmd, count, xencomm_map_no_alloc(str, count));
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_console_io);
|
||||
|
||||
int
|
||||
xencomm_hypercall_event_channel_op(int cmd, void *op)
|
||||
{
|
||||
struct xencomm_handle *desc;
|
||||
desc = xencomm_map_no_alloc(op, sizeof(struct evtchn_op));
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
return xencomm_arch_hypercall_event_channel_op(cmd, desc);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_event_channel_op);
|
||||
|
||||
int
|
||||
xencomm_hypercall_xen_version(int cmd, void *arg)
|
||||
{
|
||||
struct xencomm_handle *desc;
|
||||
unsigned int argsize;
|
||||
|
||||
switch (cmd) {
|
||||
case XENVER_version:
|
||||
/* do not actually pass an argument */
|
||||
return xencomm_arch_hypercall_xen_version(cmd, 0);
|
||||
case XENVER_extraversion:
|
||||
argsize = sizeof(struct xen_extraversion);
|
||||
break;
|
||||
case XENVER_compile_info:
|
||||
argsize = sizeof(struct xen_compile_info);
|
||||
break;
|
||||
case XENVER_capabilities:
|
||||
argsize = sizeof(struct xen_capabilities_info);
|
||||
break;
|
||||
case XENVER_changeset:
|
||||
argsize = sizeof(struct xen_changeset_info);
|
||||
break;
|
||||
case XENVER_platform_parameters:
|
||||
argsize = sizeof(struct xen_platform_parameters);
|
||||
break;
|
||||
case XENVER_get_features:
|
||||
argsize = (arg == NULL) ? 0 : sizeof(struct xen_feature_info);
|
||||
break;
|
||||
|
||||
default:
|
||||
printk(KERN_DEBUG
|
||||
"%s: unknown version op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
desc = xencomm_map_no_alloc(arg, argsize);
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
return xencomm_arch_hypercall_xen_version(cmd, desc);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_xen_version);
|
||||
|
||||
int
|
||||
xencomm_hypercall_physdev_op(int cmd, void *op)
|
||||
{
|
||||
unsigned int argsize;
|
||||
|
||||
switch (cmd) {
|
||||
case PHYSDEVOP_apic_read:
|
||||
case PHYSDEVOP_apic_write:
|
||||
argsize = sizeof(struct physdev_apic);
|
||||
break;
|
||||
case PHYSDEVOP_alloc_irq_vector:
|
||||
case PHYSDEVOP_free_irq_vector:
|
||||
argsize = sizeof(struct physdev_irq);
|
||||
break;
|
||||
case PHYSDEVOP_irq_status_query:
|
||||
argsize = sizeof(struct physdev_irq_status_query);
|
||||
break;
|
||||
|
||||
default:
|
||||
printk(KERN_DEBUG
|
||||
"%s: unknown physdev op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
return xencomm_arch_hypercall_physdev_op
|
||||
(cmd, xencomm_map_no_alloc(op, argsize));
|
||||
}
|
||||
|
||||
static int
|
||||
xencommize_grant_table_op(struct xencomm_mini **xc_area,
|
||||
unsigned int cmd, void *op, unsigned int count,
|
||||
struct xencomm_handle **desc)
|
||||
{
|
||||
struct xencomm_handle *desc1;
|
||||
unsigned int argsize;
|
||||
|
||||
switch (cmd) {
|
||||
case GNTTABOP_map_grant_ref:
|
||||
argsize = sizeof(struct gnttab_map_grant_ref);
|
||||
break;
|
||||
case GNTTABOP_unmap_grant_ref:
|
||||
argsize = sizeof(struct gnttab_unmap_grant_ref);
|
||||
break;
|
||||
case GNTTABOP_setup_table:
|
||||
{
|
||||
struct gnttab_setup_table *setup = op;
|
||||
|
||||
argsize = sizeof(*setup);
|
||||
|
||||
if (count != 1)
|
||||
return -EINVAL;
|
||||
desc1 = __xencomm_map_no_alloc
|
||||
(xen_guest_handle(setup->frame_list),
|
||||
setup->nr_frames *
|
||||
sizeof(*xen_guest_handle(setup->frame_list)),
|
||||
*xc_area);
|
||||
if (desc1 == NULL)
|
||||
return -EINVAL;
|
||||
(*xc_area)++;
|
||||
set_xen_guest_handle(setup->frame_list, (void *)desc1);
|
||||
break;
|
||||
}
|
||||
case GNTTABOP_dump_table:
|
||||
argsize = sizeof(struct gnttab_dump_table);
|
||||
break;
|
||||
case GNTTABOP_transfer:
|
||||
argsize = sizeof(struct gnttab_transfer);
|
||||
break;
|
||||
case GNTTABOP_copy:
|
||||
argsize = sizeof(struct gnttab_copy);
|
||||
break;
|
||||
case GNTTABOP_query_size:
|
||||
argsize = sizeof(struct gnttab_query_size);
|
||||
break;
|
||||
default:
|
||||
printk(KERN_DEBUG "%s: unknown hypercall grant table op %d\n",
|
||||
__func__, cmd);
|
||||
BUG();
|
||||
}
|
||||
|
||||
*desc = __xencomm_map_no_alloc(op, count * argsize, *xc_area);
|
||||
if (*desc == NULL)
|
||||
return -EINVAL;
|
||||
(*xc_area)++;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
xencomm_hypercall_grant_table_op(unsigned int cmd, void *op,
|
||||
unsigned int count)
|
||||
{
|
||||
int rc;
|
||||
struct xencomm_handle *desc;
|
||||
XENCOMM_MINI_ALIGNED(xc_area, 2);
|
||||
|
||||
rc = xencommize_grant_table_op(&xc_area, cmd, op, count, &desc);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
return xencomm_arch_hypercall_grant_table_op(cmd, desc, count);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_grant_table_op);
|
||||
|
||||
int
|
||||
xencomm_hypercall_sched_op(int cmd, void *arg)
|
||||
{
|
||||
struct xencomm_handle *desc;
|
||||
unsigned int argsize;
|
||||
|
||||
switch (cmd) {
|
||||
case SCHEDOP_yield:
|
||||
case SCHEDOP_block:
|
||||
argsize = 0;
|
||||
break;
|
||||
case SCHEDOP_shutdown:
|
||||
argsize = sizeof(struct sched_shutdown);
|
||||
break;
|
||||
case SCHEDOP_poll:
|
||||
{
|
||||
struct sched_poll *poll = arg;
|
||||
struct xencomm_handle *ports;
|
||||
|
||||
argsize = sizeof(struct sched_poll);
|
||||
ports = xencomm_map_no_alloc(xen_guest_handle(poll->ports),
|
||||
sizeof(*xen_guest_handle(poll->ports)));
|
||||
|
||||
set_xen_guest_handle(poll->ports, (void *)ports);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
printk(KERN_DEBUG "%s: unknown sched op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
desc = xencomm_map_no_alloc(arg, argsize);
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
return xencomm_arch_hypercall_sched_op(cmd, desc);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_sched_op);
|
||||
|
||||
int
|
||||
xencomm_hypercall_multicall(void *call_list, int nr_calls)
|
||||
{
|
||||
int rc;
|
||||
int i;
|
||||
struct multicall_entry *mce;
|
||||
struct xencomm_handle *desc;
|
||||
XENCOMM_MINI_ALIGNED(xc_area, nr_calls * 2);
|
||||
|
||||
for (i = 0; i < nr_calls; i++) {
|
||||
mce = (struct multicall_entry *)call_list + i;
|
||||
|
||||
switch (mce->op) {
|
||||
case __HYPERVISOR_update_va_mapping:
|
||||
case __HYPERVISOR_mmu_update:
|
||||
/* No-op on ia64. */
|
||||
break;
|
||||
case __HYPERVISOR_grant_table_op:
|
||||
rc = xencommize_grant_table_op
|
||||
(&xc_area,
|
||||
mce->args[0], (void *)mce->args[1],
|
||||
mce->args[2], &desc);
|
||||
if (rc)
|
||||
return rc;
|
||||
mce->args[1] = (unsigned long)desc;
|
||||
break;
|
||||
case __HYPERVISOR_memory_op:
|
||||
default:
|
||||
printk(KERN_DEBUG
|
||||
"%s: unhandled multicall op entry op %lu\n",
|
||||
__func__, mce->op);
|
||||
return -ENOSYS;
|
||||
}
|
||||
}
|
||||
|
||||
desc = xencomm_map_no_alloc(call_list,
|
||||
nr_calls * sizeof(struct multicall_entry));
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
return xencomm_arch_hypercall_multicall(desc, nr_calls);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_multicall);
|
||||
|
||||
int
|
||||
xencomm_hypercall_callback_op(int cmd, void *arg)
|
||||
{
|
||||
unsigned int argsize;
|
||||
switch (cmd) {
|
||||
case CALLBACKOP_register:
|
||||
argsize = sizeof(struct callback_register);
|
||||
break;
|
||||
case CALLBACKOP_unregister:
|
||||
argsize = sizeof(struct callback_unregister);
|
||||
break;
|
||||
default:
|
||||
printk(KERN_DEBUG
|
||||
"%s: unknown callback op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
return xencomm_arch_hypercall_callback_op
|
||||
(cmd, xencomm_map_no_alloc(arg, argsize));
|
||||
}
|
||||
|
||||
static int
|
||||
xencommize_memory_reservation(struct xencomm_mini *xc_area,
|
||||
struct xen_memory_reservation *mop)
|
||||
{
|
||||
struct xencomm_handle *desc;
|
||||
|
||||
desc = __xencomm_map_no_alloc(xen_guest_handle(mop->extent_start),
|
||||
mop->nr_extents *
|
||||
sizeof(*xen_guest_handle(mop->extent_start)),
|
||||
xc_area);
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
set_xen_guest_handle(mop->extent_start, (void *)desc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
xencomm_hypercall_memory_op(unsigned int cmd, void *arg)
|
||||
{
|
||||
GUEST_HANDLE(xen_pfn_t) extent_start_va[2] = { {NULL}, {NULL} };
|
||||
struct xen_memory_reservation *xmr = NULL;
|
||||
int rc;
|
||||
struct xencomm_handle *desc;
|
||||
unsigned int argsize;
|
||||
XENCOMM_MINI_ALIGNED(xc_area, 2);
|
||||
|
||||
switch (cmd) {
|
||||
case XENMEM_increase_reservation:
|
||||
case XENMEM_decrease_reservation:
|
||||
case XENMEM_populate_physmap:
|
||||
xmr = (struct xen_memory_reservation *)arg;
|
||||
set_xen_guest_handle(extent_start_va[0],
|
||||
xen_guest_handle(xmr->extent_start));
|
||||
|
||||
argsize = sizeof(*xmr);
|
||||
rc = xencommize_memory_reservation(xc_area, xmr);
|
||||
if (rc)
|
||||
return rc;
|
||||
xc_area++;
|
||||
break;
|
||||
|
||||
case XENMEM_maximum_ram_page:
|
||||
argsize = 0;
|
||||
break;
|
||||
|
||||
case XENMEM_add_to_physmap:
|
||||
argsize = sizeof(struct xen_add_to_physmap);
|
||||
break;
|
||||
|
||||
default:
|
||||
printk(KERN_DEBUG "%s: unknown memory op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
desc = xencomm_map_no_alloc(arg, argsize);
|
||||
if (desc == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
rc = xencomm_arch_hypercall_memory_op(cmd, desc);
|
||||
|
||||
switch (cmd) {
|
||||
case XENMEM_increase_reservation:
|
||||
case XENMEM_decrease_reservation:
|
||||
case XENMEM_populate_physmap:
|
||||
set_xen_guest_handle(xmr->extent_start,
|
||||
xen_guest_handle(extent_start_va[0]));
|
||||
break;
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(xencomm_hypercall_memory_op);
|
||||
|
||||
int
|
||||
xencomm_hypercall_suspend(unsigned long srec)
|
||||
{
|
||||
struct sched_shutdown arg;
|
||||
|
||||
arg.reason = SHUTDOWN_suspend;
|
||||
|
||||
return xencomm_arch_hypercall_sched_op(
|
||||
SCHEDOP_shutdown, xencomm_map_no_alloc(&arg, sizeof(arg)));
|
||||
}
|
||||
|
||||
long
|
||||
xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg)
|
||||
{
|
||||
unsigned int argsize;
|
||||
switch (cmd) {
|
||||
case VCPUOP_register_runstate_memory_area: {
|
||||
struct vcpu_register_runstate_memory_area *area =
|
||||
(struct vcpu_register_runstate_memory_area *)arg;
|
||||
argsize = sizeof(*arg);
|
||||
set_xen_guest_handle(area->addr.h,
|
||||
(void *)xencomm_map_no_alloc(area->addr.v,
|
||||
sizeof(area->addr.v)));
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
printk(KERN_DEBUG "%s: unknown vcpu op %d\n", __func__, cmd);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
return xencomm_arch_hypercall_vcpu_op(cmd, cpu,
|
||||
xencomm_map_no_alloc(arg, argsize));
|
||||
}
|
||||
|
||||
long
|
||||
xencomm_hypercall_opt_feature(void *arg)
|
||||
{
|
||||
return xencomm_arch_hypercall_opt_feature(
|
||||
xencomm_map_no_alloc(arg,
|
||||
sizeof(struct xen_ia64_opt_feature)));
|
||||
}
|
||||
364
arch/ia64/xen/xen_pv_ops.c
Normal file
364
arch/ia64/xen/xen_pv_ops.c
Normal file
@ -0,0 +1,364 @@
|
||||
/******************************************************************************
|
||||
* arch/ia64/xen/xen_pv_ops.c
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/console.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/pm.h>
|
||||
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include <asm/xen/xencomm.h>
|
||||
#include <asm/xen/privop.h>
|
||||
|
||||
#include "irq_xen.h"
|
||||
#include "time.h"
|
||||
|
||||
/***************************************************************************
|
||||
* general info
|
||||
*/
|
||||
static struct pv_info xen_info __initdata = {
|
||||
.kernel_rpl = 2, /* or 1: determin at runtime */
|
||||
.paravirt_enabled = 1,
|
||||
.name = "Xen/ia64",
|
||||
};
|
||||
|
||||
#define IA64_RSC_PL_SHIFT 2
|
||||
#define IA64_RSC_PL_BIT_SIZE 2
|
||||
#define IA64_RSC_PL_MASK \
|
||||
(((1UL << IA64_RSC_PL_BIT_SIZE) - 1) << IA64_RSC_PL_SHIFT)
|
||||
|
||||
static void __init
|
||||
xen_info_init(void)
|
||||
{
|
||||
/* Xenified Linux/ia64 may run on pl = 1 or 2.
|
||||
* determin at run time. */
|
||||
unsigned long rsc = ia64_getreg(_IA64_REG_AR_RSC);
|
||||
unsigned int rpl = (rsc & IA64_RSC_PL_MASK) >> IA64_RSC_PL_SHIFT;
|
||||
xen_info.kernel_rpl = rpl;
|
||||
}
|
||||
|
||||
/***************************************************************************
|
||||
* pv_init_ops
|
||||
* initialization hooks.
|
||||
*/
|
||||
|
||||
static void
|
||||
xen_panic_hypercall(struct unw_frame_info *info, void *arg)
|
||||
{
|
||||
current->thread.ksp = (__u64)info->sw - 16;
|
||||
HYPERVISOR_shutdown(SHUTDOWN_crash);
|
||||
/* we're never actually going to get here... */
|
||||
}
|
||||
|
||||
static int
|
||||
xen_panic_event(struct notifier_block *this, unsigned long event, void *ptr)
|
||||
{
|
||||
unw_init_running(xen_panic_hypercall, NULL);
|
||||
/* we're never actually going to get here... */
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static struct notifier_block xen_panic_block = {
|
||||
xen_panic_event, NULL, 0 /* try to go last */
|
||||
};
|
||||
|
||||
static void xen_pm_power_off(void)
|
||||
{
|
||||
local_irq_disable();
|
||||
HYPERVISOR_shutdown(SHUTDOWN_poweroff);
|
||||
}
|
||||
|
||||
static void __init
|
||||
xen_banner(void)
|
||||
{
|
||||
printk(KERN_INFO
|
||||
"Running on Xen! pl = %d start_info_pfn=0x%lx nr_pages=%ld "
|
||||
"flags=0x%x\n",
|
||||
xen_info.kernel_rpl,
|
||||
HYPERVISOR_shared_info->arch.start_info_pfn,
|
||||
xen_start_info->nr_pages, xen_start_info->flags);
|
||||
}
|
||||
|
||||
static int __init
|
||||
xen_reserve_memory(struct rsvd_region *region)
|
||||
{
|
||||
region->start = (unsigned long)__va(
|
||||
(HYPERVISOR_shared_info->arch.start_info_pfn << PAGE_SHIFT));
|
||||
region->end = region->start + PAGE_SIZE;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void __init
|
||||
xen_arch_setup_early(void)
|
||||
{
|
||||
struct shared_info *s;
|
||||
BUG_ON(!xen_pv_domain());
|
||||
|
||||
s = HYPERVISOR_shared_info;
|
||||
xen_start_info = __va(s->arch.start_info_pfn << PAGE_SHIFT);
|
||||
|
||||
/* Must be done before any hypercall. */
|
||||
xencomm_initialize();
|
||||
|
||||
xen_setup_features();
|
||||
/* Register a call for panic conditions. */
|
||||
atomic_notifier_chain_register(&panic_notifier_list,
|
||||
&xen_panic_block);
|
||||
pm_power_off = xen_pm_power_off;
|
||||
|
||||
xen_ia64_enable_opt_feature();
|
||||
}
|
||||
|
||||
static void __init
|
||||
xen_arch_setup_console(char **cmdline_p)
|
||||
{
|
||||
add_preferred_console("xenboot", 0, NULL);
|
||||
add_preferred_console("tty", 0, NULL);
|
||||
/* use hvc_xen */
|
||||
add_preferred_console("hvc", 0, NULL);
|
||||
|
||||
#if !defined(CONFIG_VT) || !defined(CONFIG_DUMMY_CONSOLE)
|
||||
conswitchp = NULL;
|
||||
#endif
|
||||
}
|
||||
|
||||
static int __init
|
||||
xen_arch_setup_nomca(void)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void __init
|
||||
xen_post_smp_prepare_boot_cpu(void)
|
||||
{
|
||||
xen_setup_vcpu_info_placement();
|
||||
}
|
||||
|
||||
static const struct pv_init_ops xen_init_ops __initdata = {
|
||||
.banner = xen_banner,
|
||||
|
||||
.reserve_memory = xen_reserve_memory,
|
||||
|
||||
.arch_setup_early = xen_arch_setup_early,
|
||||
.arch_setup_console = xen_arch_setup_console,
|
||||
.arch_setup_nomca = xen_arch_setup_nomca,
|
||||
|
||||
.post_smp_prepare_boot_cpu = xen_post_smp_prepare_boot_cpu,
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
* pv_cpu_ops
|
||||
* intrinsics hooks.
|
||||
*/
|
||||
|
||||
static void xen_setreg(int regnum, unsigned long val)
|
||||
{
|
||||
switch (regnum) {
|
||||
case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7:
|
||||
xen_set_kr(regnum - _IA64_REG_AR_KR0, val);
|
||||
break;
|
||||
#ifdef CONFIG_IA32_SUPPORT
|
||||
case _IA64_REG_AR_EFLAG:
|
||||
xen_set_eflag(val);
|
||||
break;
|
||||
#endif
|
||||
case _IA64_REG_CR_TPR:
|
||||
xen_set_tpr(val);
|
||||
break;
|
||||
case _IA64_REG_CR_ITM:
|
||||
xen_set_itm(val);
|
||||
break;
|
||||
case _IA64_REG_CR_EOI:
|
||||
xen_eoi(val);
|
||||
break;
|
||||
default:
|
||||
ia64_native_setreg_func(regnum, val);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned long xen_getreg(int regnum)
|
||||
{
|
||||
unsigned long res;
|
||||
|
||||
switch (regnum) {
|
||||
case _IA64_REG_PSR:
|
||||
res = xen_get_psr();
|
||||
break;
|
||||
#ifdef CONFIG_IA32_SUPPORT
|
||||
case _IA64_REG_AR_EFLAG:
|
||||
res = xen_get_eflag();
|
||||
break;
|
||||
#endif
|
||||
case _IA64_REG_CR_IVR:
|
||||
res = xen_get_ivr();
|
||||
break;
|
||||
case _IA64_REG_CR_TPR:
|
||||
res = xen_get_tpr();
|
||||
break;
|
||||
default:
|
||||
res = ia64_native_getreg_func(regnum);
|
||||
break;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
/* turning on interrupts is a bit more complicated.. write to the
|
||||
* memory-mapped virtual psr.i bit first (to avoid race condition),
|
||||
* then if any interrupts were pending, we have to execute a hyperprivop
|
||||
* to ensure the pending interrupt gets delivered; else we're done! */
|
||||
static void
|
||||
xen_ssm_i(void)
|
||||
{
|
||||
int old = xen_get_virtual_psr_i();
|
||||
xen_set_virtual_psr_i(1);
|
||||
barrier();
|
||||
if (!old && xen_get_virtual_pend())
|
||||
xen_hyper_ssm_i();
|
||||
}
|
||||
|
||||
/* turning off interrupts can be paravirtualized simply by writing
|
||||
* to a memory-mapped virtual psr.i bit (implemented as a 16-bit bool) */
|
||||
static void
|
||||
xen_rsm_i(void)
|
||||
{
|
||||
xen_set_virtual_psr_i(0);
|
||||
barrier();
|
||||
}
|
||||
|
||||
static unsigned long
|
||||
xen_get_psr_i(void)
|
||||
{
|
||||
return xen_get_virtual_psr_i() ? IA64_PSR_I : 0;
|
||||
}
|
||||
|
||||
static void
|
||||
xen_intrin_local_irq_restore(unsigned long mask)
|
||||
{
|
||||
if (mask & IA64_PSR_I)
|
||||
xen_ssm_i();
|
||||
else
|
||||
xen_rsm_i();
|
||||
}
|
||||
|
||||
static const struct pv_cpu_ops xen_cpu_ops __initdata = {
|
||||
.fc = xen_fc,
|
||||
.thash = xen_thash,
|
||||
.get_cpuid = xen_get_cpuid,
|
||||
.get_pmd = xen_get_pmd,
|
||||
.getreg = xen_getreg,
|
||||
.setreg = xen_setreg,
|
||||
.ptcga = xen_ptcga,
|
||||
.get_rr = xen_get_rr,
|
||||
.set_rr = xen_set_rr,
|
||||
.set_rr0_to_rr4 = xen_set_rr0_to_rr4,
|
||||
.ssm_i = xen_ssm_i,
|
||||
.rsm_i = xen_rsm_i,
|
||||
.get_psr_i = xen_get_psr_i,
|
||||
.intrin_local_irq_restore
|
||||
= xen_intrin_local_irq_restore,
|
||||
};
|
||||
|
||||
/******************************************************************************
|
||||
* replacement of hand written assembly codes.
|
||||
*/
|
||||
|
||||
extern char xen_switch_to;
|
||||
extern char xen_leave_syscall;
|
||||
extern char xen_work_processed_syscall;
|
||||
extern char xen_leave_kernel;
|
||||
|
||||
const struct pv_cpu_asm_switch xen_cpu_asm_switch = {
|
||||
.switch_to = (unsigned long)&xen_switch_to,
|
||||
.leave_syscall = (unsigned long)&xen_leave_syscall,
|
||||
.work_processed_syscall = (unsigned long)&xen_work_processed_syscall,
|
||||
.leave_kernel = (unsigned long)&xen_leave_kernel,
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
* pv_iosapic_ops
|
||||
* iosapic read/write hooks.
|
||||
*/
|
||||
static void
|
||||
xen_pcat_compat_init(void)
|
||||
{
|
||||
/* nothing */
|
||||
}
|
||||
|
||||
static struct irq_chip*
|
||||
xen_iosapic_get_irq_chip(unsigned long trigger)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static unsigned int
|
||||
xen_iosapic_read(char __iomem *iosapic, unsigned int reg)
|
||||
{
|
||||
struct physdev_apic apic_op;
|
||||
int ret;
|
||||
|
||||
apic_op.apic_physbase = (unsigned long)iosapic -
|
||||
__IA64_UNCACHED_OFFSET;
|
||||
apic_op.reg = reg;
|
||||
ret = HYPERVISOR_physdev_op(PHYSDEVOP_apic_read, &apic_op);
|
||||
if (ret)
|
||||
return ret;
|
||||
return apic_op.value;
|
||||
}
|
||||
|
||||
static void
|
||||
xen_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
|
||||
{
|
||||
struct physdev_apic apic_op;
|
||||
|
||||
apic_op.apic_physbase = (unsigned long)iosapic -
|
||||
__IA64_UNCACHED_OFFSET;
|
||||
apic_op.reg = reg;
|
||||
apic_op.value = val;
|
||||
HYPERVISOR_physdev_op(PHYSDEVOP_apic_write, &apic_op);
|
||||
}
|
||||
|
||||
static const struct pv_iosapic_ops xen_iosapic_ops __initdata = {
|
||||
.pcat_compat_init = xen_pcat_compat_init,
|
||||
.__get_irq_chip = xen_iosapic_get_irq_chip,
|
||||
|
||||
.__read = xen_iosapic_read,
|
||||
.__write = xen_iosapic_write,
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
* pv_ops initialization
|
||||
*/
|
||||
|
||||
void __init
|
||||
xen_setup_pv_ops(void)
|
||||
{
|
||||
xen_info_init();
|
||||
pv_info = xen_info;
|
||||
pv_init_ops = xen_init_ops;
|
||||
pv_cpu_ops = xen_cpu_ops;
|
||||
pv_iosapic_ops = xen_iosapic_ops;
|
||||
pv_irq_ops = xen_irq_ops;
|
||||
pv_time_ops = xen_time_ops;
|
||||
|
||||
paravirt_cpu_asm_init(&xen_cpu_asm_switch);
|
||||
}
|
||||
105
arch/ia64/xen/xencomm.c
Normal file
105
arch/ia64/xen/xencomm.c
Normal file
@ -0,0 +1,105 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Hollis Blanchard <hollisb@us.ibm.com>, IBM Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <linux/mm.h>
|
||||
|
||||
static unsigned long kernel_virtual_offset;
|
||||
static int is_xencomm_initialized;
|
||||
|
||||
/* for xen early printk. It uses console io hypercall which uses xencomm.
|
||||
* However early printk may use it before xencomm initialization.
|
||||
*/
|
||||
int
|
||||
xencomm_is_initialized(void)
|
||||
{
|
||||
return is_xencomm_initialized;
|
||||
}
|
||||
|
||||
void
|
||||
xencomm_initialize(void)
|
||||
{
|
||||
kernel_virtual_offset = KERNEL_START - ia64_tpa(KERNEL_START);
|
||||
is_xencomm_initialized = 1;
|
||||
}
|
||||
|
||||
/* Translate virtual address to physical address. */
|
||||
unsigned long
|
||||
xencomm_vtop(unsigned long vaddr)
|
||||
{
|
||||
struct page *page;
|
||||
struct vm_area_struct *vma;
|
||||
|
||||
if (vaddr == 0)
|
||||
return 0UL;
|
||||
|
||||
if (REGION_NUMBER(vaddr) == 5) {
|
||||
pgd_t *pgd;
|
||||
pud_t *pud;
|
||||
pmd_t *pmd;
|
||||
pte_t *ptep;
|
||||
|
||||
/* On ia64, TASK_SIZE refers to current. It is not initialized
|
||||
during boot.
|
||||
Furthermore the kernel is relocatable and __pa() doesn't
|
||||
work on addresses. */
|
||||
if (vaddr >= KERNEL_START
|
||||
&& vaddr < (KERNEL_START + KERNEL_TR_PAGE_SIZE))
|
||||
return vaddr - kernel_virtual_offset;
|
||||
|
||||
/* In kernel area -- virtually mapped. */
|
||||
pgd = pgd_offset_k(vaddr);
|
||||
if (pgd_none(*pgd) || pgd_bad(*pgd))
|
||||
return ~0UL;
|
||||
|
||||
pud = pud_offset(pgd, vaddr);
|
||||
if (pud_none(*pud) || pud_bad(*pud))
|
||||
return ~0UL;
|
||||
|
||||
pmd = pmd_offset(pud, vaddr);
|
||||
if (pmd_none(*pmd) || pmd_bad(*pmd))
|
||||
return ~0UL;
|
||||
|
||||
ptep = pte_offset_kernel(pmd, vaddr);
|
||||
if (!ptep)
|
||||
return ~0UL;
|
||||
|
||||
return (pte_val(*ptep) & _PFN_MASK) | (vaddr & ~PAGE_MASK);
|
||||
}
|
||||
|
||||
if (vaddr > TASK_SIZE) {
|
||||
/* percpu variables */
|
||||
if (REGION_NUMBER(vaddr) == 7 &&
|
||||
REGION_OFFSET(vaddr) >= (1ULL << IA64_MAX_PHYS_BITS))
|
||||
ia64_tpa(vaddr);
|
||||
|
||||
/* kernel address */
|
||||
return __pa(vaddr);
|
||||
}
|
||||
|
||||
/* XXX double-check (lack of) locking */
|
||||
vma = find_extend_vma(current->mm, vaddr);
|
||||
if (!vma)
|
||||
return ~0UL;
|
||||
|
||||
/* We assume the page is modified. */
|
||||
page = follow_page(vma, vaddr, FOLL_WRITE | FOLL_TOUCH);
|
||||
if (!page)
|
||||
return ~0UL;
|
||||
|
||||
return (page_to_pfn(page) << PAGE_SHIFT) | (vaddr & ~PAGE_MASK);
|
||||
}
|
||||
52
arch/ia64/xen/xenivt.S
Normal file
52
arch/ia64/xen/xenivt.S
Normal file
@ -0,0 +1,52 @@
|
||||
/*
|
||||
* arch/ia64/xen/ivt.S
|
||||
*
|
||||
* Copyright (C) 2005 Hewlett-Packard Co
|
||||
* Dan Magenheimer <dan.magenheimer@hp.com>
|
||||
*
|
||||
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
||||
* VA Linux Systems Japan K.K.
|
||||
* pv_ops.
|
||||
*/
|
||||
|
||||
#include <asm/asmmacro.h>
|
||||
#include <asm/kregs.h>
|
||||
#include <asm/pgtable.h>
|
||||
|
||||
#include "../kernel/minstate.h"
|
||||
|
||||
.section .text,"ax"
|
||||
GLOBAL_ENTRY(xen_event_callback)
|
||||
mov r31=pr // prepare to save predicates
|
||||
;;
|
||||
SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3
|
||||
;;
|
||||
movl r3=XSI_PSR_IC
|
||||
mov r14=1
|
||||
;;
|
||||
st4 [r3]=r14
|
||||
;;
|
||||
adds r3=8,r2 // set up second base pointer for SAVE_REST
|
||||
srlz.i // ensure everybody knows psr.ic is back on
|
||||
;;
|
||||
SAVE_REST
|
||||
;;
|
||||
1:
|
||||
alloc r14=ar.pfs,0,0,1,0 // must be first in an insn group
|
||||
add out0=16,sp // pass pointer to pt_regs as first arg
|
||||
;;
|
||||
br.call.sptk.many b0=xen_evtchn_do_upcall
|
||||
;;
|
||||
movl r20=XSI_PSR_I_ADDR
|
||||
;;
|
||||
ld8 r20=[r20]
|
||||
;;
|
||||
adds r20=-1,r20 // vcpu_info->evtchn_upcall_pending
|
||||
;;
|
||||
ld1 r20=[r20]
|
||||
;;
|
||||
cmp.ne p6,p0=r20,r0 // if there are pending events,
|
||||
(p6) br.spnt.few 1b // call evtchn_do_upcall again.
|
||||
br.sptk.many xen_leave_kernel // we know ia64_leave_kernel is
|
||||
// paravirtualized as xen_leave_kernel
|
||||
END(xen_event_callback)
|
||||
83
arch/ia64/xen/xensetup.S
Normal file
83
arch/ia64/xen/xensetup.S
Normal file
@ -0,0 +1,83 @@
|
||||
/*
|
||||
* Support routines for Xen
|
||||
*
|
||||
* Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com>
|
||||
*/
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/asmmacro.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/paravirt.h>
|
||||
#include <asm/xen/privop.h>
|
||||
#include <linux/elfnote.h>
|
||||
#include <linux/init.h>
|
||||
#include <xen/interface/elfnote.h>
|
||||
|
||||
.section .data.read_mostly
|
||||
.align 8
|
||||
.global xen_domain_type
|
||||
xen_domain_type:
|
||||
data4 XEN_NATIVE_ASM
|
||||
.previous
|
||||
|
||||
__INIT
|
||||
ENTRY(startup_xen)
|
||||
// Calculate load offset.
|
||||
// The constant, LOAD_OFFSET, can't be used because the boot
|
||||
// loader doesn't always load to the LMA specified by the vmlinux.lds.
|
||||
mov r9=ip // must be the first instruction to make sure
|
||||
// that r9 = the physical address of startup_xen.
|
||||
// Usually r9 = startup_xen - LOAD_OFFSET
|
||||
movl r8=startup_xen
|
||||
;;
|
||||
sub r9=r9,r8 // Usually r9 = -LOAD_OFFSET.
|
||||
|
||||
mov r10=PARAVIRT_HYPERVISOR_TYPE_XEN
|
||||
movl r11=_start
|
||||
;;
|
||||
add r11=r11,r9
|
||||
movl r8=hypervisor_type
|
||||
;;
|
||||
add r8=r8,r9
|
||||
mov b0=r11
|
||||
;;
|
||||
st8 [r8]=r10
|
||||
br.cond.sptk.many b0
|
||||
;;
|
||||
END(startup_xen)
|
||||
|
||||
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux")
|
||||
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6")
|
||||
ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0")
|
||||
ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, data8.ua startup_xen - LOAD_OFFSET)
|
||||
|
||||
#define isBP p3 // are we the Bootstrap Processor?
|
||||
|
||||
.text
|
||||
|
||||
GLOBAL_ENTRY(xen_setup_hook)
|
||||
mov r8=XEN_PV_DOMAIN_ASM
|
||||
(isBP) movl r9=xen_domain_type;;
|
||||
(isBP) st4 [r9]=r8
|
||||
movl r10=xen_ivt;;
|
||||
|
||||
mov cr.iva=r10
|
||||
|
||||
/* Set xsi base. */
|
||||
#define FW_HYPERCALL_SET_SHARED_INFO_VA 0x600
|
||||
(isBP) mov r2=FW_HYPERCALL_SET_SHARED_INFO_VA
|
||||
(isBP) movl r28=XSI_BASE;;
|
||||
(isBP) break 0x1000;;
|
||||
|
||||
/* setup pv_ops */
|
||||
(isBP) mov r4=rp
|
||||
;;
|
||||
(isBP) br.call.sptk.many rp=xen_setup_pv_ops
|
||||
;;
|
||||
(isBP) mov rp=r4
|
||||
;;
|
||||
|
||||
br.ret.sptk.many rp
|
||||
;;
|
||||
END(xen_setup_hook)
|
||||
Loading…
Reference in New Issue
Block a user