mirror of
https://github.com/torvalds/linux.git
synced 2024-09-22 16:03:15 +00:00
8d26cf7b40
There are several places in the kvm module, which set the prefix register. Since we need to flush the cpu, lets combine this operation into a helper function. This helper will also explicitely mask out the unused bits. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
|
|
* kvm_s390.h - definition for kvm on s390
|
|
*
|
|
* Copyright IBM Corp. 2008,2009
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License (version 2 only)
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* Author(s): Carsten Otte <cotte@de.ibm.com>
|
|
* Christian Borntraeger <borntraeger@de.ibm.com>
|
|
* Christian Ehrhardt <ehrhardt@de.ibm.com>
|
|
*/
|
|
|
|
#ifndef ARCH_S390_KVM_S390_H
|
|
#define ARCH_S390_KVM_S390_H
|
|
|
|
#include <linux/hrtimer.h>
|
|
#include <linux/kvm.h>
|
|
#include <linux/kvm_host.h>
|
|
|
|
/* The current code can have up to 256 pages for virtio */
|
|
#define VIRTIODESCSPACE (256ul * 4096ul)
|
|
|
|
typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
|
|
|
|
/* negativ values are error codes, positive values for internal conditions */
|
|
#define SIE_INTERCEPT_RERUNVCPU (1<<0)
|
|
#define SIE_INTERCEPT_UCONTROL (1<<1)
|
|
int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
|
|
|
|
#define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
|
|
do { \
|
|
debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \
|
|
d_args); \
|
|
} while (0)
|
|
|
|
#define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\
|
|
do { \
|
|
debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \
|
|
"%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \
|
|
d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\
|
|
d_args); \
|
|
} while (0)
|
|
|
|
static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu)
|
|
{
|
|
return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT;
|
|
}
|
|
|
|
static inline int kvm_is_ucontrol(struct kvm *kvm)
|
|
{
|
|
#ifdef CONFIG_KVM_S390_UCONTROL
|
|
if (kvm->arch.gmap)
|
|
return 0;
|
|
return 1;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix)
|
|
{
|
|
vcpu->arch.sie_block->prefix = prefix & 0x7fffe000u;
|
|
vcpu->arch.sie_block->ihcpu = 0xffff;
|
|
}
|
|
|
|
int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
|
|
enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer);
|
|
void kvm_s390_tasklet(unsigned long parm);
|
|
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu);
|
|
int kvm_s390_inject_vm(struct kvm *kvm,
|
|
struct kvm_s390_interrupt *s390int);
|
|
int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
|
|
struct kvm_s390_interrupt *s390int);
|
|
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
|
|
int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action);
|
|
|
|
/* implemented in priv.c */
|
|
int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
|
|
int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
|
|
|
|
/* implemented in sigp.c */
|
|
int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
|
|
|
|
/* implemented in kvm-s390.c */
|
|
int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu,
|
|
unsigned long addr);
|
|
/* implemented in diag.c */
|
|
int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
|
|
|
|
#endif
|