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9e368f2915
linux/arch/powerpc/kernel
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Paul Mackerras 9e368f2915 KVM: PPC: book3s_hv: Add support for PPC970-family processors 
This adds support for running KVM guests in supervisor mode on those
PPC970 processors that have a usable hypervisor mode.  Unfortunately,
Apple G5 machines have supervisor mode disabled (MSR[HV] is forced to
1), but the YDL PowerStation does have a usable hypervisor mode.

There are several differences between the PPC970 and POWER7 in how
guests are managed.  These differences are accommodated using the
CPU_FTR_ARCH_201 (PPC970) and CPU_FTR_ARCH_206 (POWER7) CPU feature
bits.  Notably, on PPC970:

* The LPCR, LPID or RMOR registers don't exist, and the functions of
  those registers are provided by bits in HID4 and one bit in HID0.

* External interrupts can be directed to the hypervisor, but unlike
  POWER7 they are masked by MSR[EE] in non-hypervisor modes and use
  SRR0/1 not HSRR0/1.

* There is no virtual RMA (VRMA) mode; the guest must use an RMO
  (real mode offset) area.

* The TLB entries are not tagged with the LPID, so it is necessary to
  flush the whole TLB on partition switch.  Furthermore, when switching
  partitions we have to ensure that no other CPU is executing the tlbie
  or tlbsync instructions in either the old or the new partition,
  otherwise undefined behaviour can occur.

* The PMU has 8 counters (PMC registers) rather than 6.

* The DSCR, PURR, SPURR, AMR, AMOR, UAMOR registers don't exist.

* The SLB has 64 entries rather than 32.

* There is no mediated external interrupt facility, so if we switch to
  a guest that has a virtual external interrupt pending but the guest
  has MSR[EE] = 0, we have to arrange to have an interrupt pending for
  it so that we can get control back once it re-enables interrupts.  We
  do that by sending ourselves an IPI with smp_send_reschedule after
  hard-disabling interrupts.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-07-12 13:16:59 +03:00
..
vdso32 Fix common misspellings 2011-03-31 11:26:23 -03:00
vdso64 Fix common misspellings 2011-03-31 11:26:23 -03:00
.gitignore
align.c powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
asm-offsets.c KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
audit.c
btext.c Fix common misspellings 2011-03-31 11:26:23 -03:00
cacheinfo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Fix some 6xx/7xxx CPU setup functions 2011-02-07 12:57:11 +11:00
cpu_setup_44x.S powerpc/44x: Add support for the AMCC APM821xx SoC 2010-10-13 08:47:09 -04:00
cpu_setup_a2.S powerpc: Add A2 cpu support 2011-04-27 13:02:02 +10:00
cpu_setup_fsl_booke.S powerpc/e5500: set non-base IVORs 2011-05-19 00:36:43 -05:00
cpu_setup_pa6t.S
cpu_setup_power7.S powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
cpu_setup_ppc970.S powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
cputable.c powerpc/book3e: Fix CPU feature handling on e5500 in 32-bit mode 2011-06-02 15:29:09 -05:00
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
crash.c powerpc/kdump64: Don't reference freed memory as pacas 2011-05-19 14:30:44 +10:00
dbell.c powerpc: Consolidate ipi message mux and demux 2011-05-19 15:31:03 +10:00
dma-iommu.c powerpc/iommu: Use coherent_dma_mask for alloc_coherent 2010-12-09 15:17:50 +11:00
dma-swiotlb.c of: Merge of_platform_bus_type with platform_bus_type 2010-07-24 09:57:51 -06:00
dma.c powerpc: Implement dma_mmap_coherent() 2011-03-30 10:44:00 +11:00
e500-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
entry_32.S powerpc/ppc32/tracing: Add stack frame to calls of trace_hardirqs_on/off 2011-01-21 14:08:33 +11:00
entry_64.S powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
exceptions-64e.S powerpc/e5500: set non-base IVORs 2011-05-19 00:36:43 -05:00
exceptions-64s.S KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
firmware.c powerpc: Make powerpc_firmware_features __read_mostly 2010-02-09 13:56:07 +11:00
fpu.S powerpc: Remove second definition of STACK_FRAME_OVERHEAD 2010-11-29 15:48:23 +11:00
fsl_booke_entry_mapping.S powerpc/fsl-booke: Fix address issue when using relocatable kernels 2010-07-11 11:04:08 -05:00
ftrace.c powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
head_8xx.S powerpc: Remove second definition of STACK_FRAME_OVERHEAD 2010-11-29 15:48:23 +11:00
head_32.S powerpc: Remove last piece of GEMINI 2011-05-19 17:32:29 +10:00
head_40x.S Fix common misspellings 2011-03-31 11:26:23 -03:00
head_44x.S Fix common misspellings 2011-03-31 11:26:23 -03:00
head_64.S powerpc: Don't search for paca in freed memory 2011-05-19 14:30:43 +10:00
head_booke.h powerpc/booke: Add Stack Marking support to Booke Exception Prolog 2010-05-05 08:01:52 -04:00
head_fsl_booke.S powerpc/e500: SPE register saving: take arbitrary struct offset 2011-07-12 13:16:31 +03:00
hw_breakpoint.c powerpc, hw_breakpoint: Tell generic code we have no instruction breakpoints 2010-06-30 13:54:58 +10:00
ibmebus.c PM / Hibernate: Introduce CONFIG_HIBERNATE_CALLBACKS 2011-04-11 22:54:42 +02:00
idle_6xx.S
idle_book3e.S powerpc/book3e: Add generic 64-bit idle powersave support 2010-07-14 14:13:18 +10:00
idle_e500.S
idle_power4.S powerpc/pmac/smp: Properly NAP offlined CPU on G5 2011-04-01 15:37:25 +11:00
idle_power7.S KVM: PPC: Allow book3s_hv guests to use SMT processor modes 2011-07-12 13:16:57 +03:00
idle.c powerpc: Re-enable preemption before cpu_die() 2010-08-24 15:26:29 +10:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io-workarounds.c powerpc/pci: Properly initialize IO workaround "private" 2011-04-27 14:18:33 +10:00
io.c powerpc: tiny memcpy_(to|from)io optimisation 2009-11-04 16:43:12 -07:00
iomap.c
iommu.c powerpc: iommu: Add device name to iommu error printks 2010-12-09 15:35:32 +11:00
irq.c powerpc: Fix irq_free_virt by adjusting bounds before loop 2011-05-26 13:38:59 +10:00
isa-bridge.c
kgdb.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
kprobes.c powerpc/kprobes: Remove resume_execution() in kprobes 2010-06-02 17:50:37 +10:00
kvm_emul.S KVM: PPC: Make PV mtmsrd L=1 work with r30 and r31 2010-10-24 10:52:14 +02:00
kvm.c PPC: KVM: Book E doesn't have __end_interrupts. 2010-11-05 14:42:27 -02:00
l2cr_6xx.S Fix common misspellings 2011-03-31 11:26:23 -03:00
legacy_serial.c powerpc: Check device status before adding serial device 2011-04-12 06:29:21 -05:00
lparcfg.c powerpc/pseries: Add page coalescing support 2011-05-04 16:02:21 +10:00
machine_kexec_32.c powerpc/kexec: make masking/disabling interrupts generic 2010-10-14 00:52:46 -05:00
machine_kexec_64.c powerpc/kexec: Fix orphaned offline CPUs across kexec 2010-07-31 15:05:22 +10:00
machine_kexec.c powerpc: Convert to new irq_* function names 2011-03-29 14:48:12 +02:00
Makefile powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
misc_32.S powerpc: Fix 32-bit SMP build 2011-05-20 16:23:19 -07:00
misc_64.S powerpc/kexec: Fix memory corruption from unallocated slaves 2011-05-19 14:30:43 +10:00
misc.S powerpc: Remove unneeded cpu_setup/restore from POWER7 cputable entry 2010-11-29 15:48:22 +11:00
module_32.c
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c powerpc: remove unused variable 2010-10-05 17:27:54 -07:00
mpc7450-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c powerpc/nvram: Generalize code for OS partitions in NVRAM 2011-03-04 18:19:04 +11:00
of_platform.c dt/powerpc: Eliminate users of of_platform_{,un}register_driver 2011-02-28 01:36:39 -07:00
paca.c powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
pci_32.c powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller 2011-02-04 11:46:51 -07:00
pci_64.c powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller 2011-02-04 11:46:51 -07:00
pci_dn.c powerpc: Remove alloc_maybe_bootmem for zalloc version 2011-05-19 15:30:57 +10:00
pci_of_scan.c powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller 2011-02-04 11:46:51 -07:00
pci-common.c powerpc: Convert to new irq_* function names 2011-03-29 14:48:12 +02:00
perf_callchain.c perf: Factorize callchain context handling 2010-08-19 01:32:11 +02:00
perf_event_fsl_emb.c powerpc, perf: Fix frequency calculation for overflowing counters (FSL version) 2011-01-19 20:05:42 +01:00
perf_event.c powerpc/perf_event: Skip updating kernel counters if register value shrinks 2011-04-18 13:08:23 +10:00
pmc.c powerpc: Convert pmc_owner_lock to raw_spinlock 2010-02-19 14:52:33 +11:00
power4-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
power5-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
power5+-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
power6-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
power7-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
ppc32.h
ppc970-pmu.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
ppc_ksyms.c powerpc: Simplify 4k/64k copy_page logic 2011-05-19 14:30:42 +10:00
ppc_save_regs.S Fix common misspellings 2011-03-31 11:26:23 -03:00
proc_powerpc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
process.c KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00
prom_init_check.sh powerpc: Fix compile errors in prom_init_check for gcc 4.5 2010-07-08 18:11:39 +10:00
prom_init.c powerpc/pseries: Add page coalescing support 2011-05-04 16:02:21 +10:00
prom_parse.c of/pci: move of_irq_map_pci() into generic code 2011-02-04 11:46:50 -07:00
prom.c powerpc: Force page alignment for initrd reserved memory 2011-06-09 16:52:38 +10:00
ptrace32.c powerpc: Update compat_arch_ptrace 2010-12-09 15:35:32 +11:00
ptrace.c powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
reloc_64.S
rtas_flash.c powerpc/rtas_flash: Use simple_read_from_buffer 2011-01-21 14:08:34 +11:00
rtas_pci.c powerpc/pci: Clean up direct access to sysdata by RTAS 2009-05-21 15:44:23 +10:00
rtas-proc.c powerpc: Move /proc/ppc64 to /proc/powerpc update 2010-01-15 13:26:17 +11:00
rtas-rtc.c powerpc/rtas-rtc: remove sideeffects of printk_ratelimit 2011-06-29 15:30:43 +10:00
rtas.c powerpc/pseries: Add page coalescing support 2011-05-04 16:02:21 +10:00
rtasd.c Fix common misspellings 2011-03-31 11:26:23 -03:00
setup_32.c powerpc: Properly handshake CPUs going out of boot spin loop 2011-04-20 11:03:24 +10:00
setup_64.c KVM: PPC: Allocate RMAs (Real Mode Areas) at boot for use by guests 2011-07-12 13:16:57 +03:00
setup-common.c KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00
setup.h
signal_32.c arch/powerpc: use printk_ratelimited instead of printk_ratelimit 2011-06-29 15:31:01 +10:00
signal_64.c arch/powerpc: use printk_ratelimited instead of printk_ratelimit 2011-06-29 15:31:01 +10:00
signal.c powerpc: fix double syscall restarts 2010-09-22 09:33:50 -07:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
smp.c KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00
softemu8xx.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
stacktrace.c
suspend.c update email address 2010-07-19 10:56:54 +02:00
swsusp_32.S Fix common misspellings 2011-03-31 11:26:23 -03:00
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S powerpc/fsl-booke: Add hibernation support for FSL BookE processors 2010-05-21 07:41:53 -05:00
swsusp.c PM / Hibernate: Remove arch_prepare_suspend() 2011-05-24 23:35:55 +02:00
sys_ppc32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
syscalls.c Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
sysfs.c powerpc: Per process DSCR + some fixes (try#4) 2011-04-27 14:18:19 +10:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
time.c powerpc: Fix oops if scan_dispatch_log is called too early 2011-04-18 13:08:19 +10:00
traps.c powerpc/e500: Save SPEFCSR in flush_spe_to_thread() 2011-07-12 13:16:30 +03:00
udbg_16550.c powerpc: Add early debug for WSP platforms 2011-05-06 13:32:41 +10:00
udbg.c powerpc: Add early debug for WSP platforms 2011-05-06 13:32:41 +10:00
vdso.c mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
vecemu.c
vector.S powerpc: Remove static branch hint in giveup_altivec 2011-05-19 14:30:42 +10:00
vio.c powerpc/iommu: Use coherent_dma_mask for alloc_coherent 2010-12-09 15:17:50 +11:00
vmlinux.lds.S percpu: Always align percpu output section to PAGE_SIZE 2011-03-24 18:50:09 +01:00