diff options
-rw-r--r-- | target-i386/cpu.h | 1 | ||||
-rw-r--r-- | target-i386/cpuid.c | 2 | ||||
-rw-r--r-- | target-i386/kvm.c | 14 | ||||
-rw-r--r-- | target-i386/machine.c | 26 |
4 files changed, 42 insertions, 1 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 2440d65..06e40f3 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -681,6 +681,7 @@ typedef struct CPUX86State { #endif uint64_t system_time_msr; uint64_t wall_clock_msr; + uint64_t async_pf_en_msr; uint64_t tsc; diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index 650a719..165045e 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -73,7 +73,7 @@ static const char *ext3_feature_name[] = { }; static const char *kvm_feature_name[] = { - "kvmclock", "kvm_nopiodelay", "kvm_mmu", NULL, NULL, NULL, NULL, NULL, + "kvmclock", "kvm_nopiodelay", "kvm_mmu", NULL, "kvm_asyncpf", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target-i386/kvm.c b/target-i386/kvm.c index ae0a034..7dfc357 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -162,6 +162,9 @@ struct kvm_para_features { #ifdef KVM_CAP_PV_MMU { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, #endif +#ifdef KVM_CAP_ASYNC_PF + { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, +#endif { -1, -1 } }; @@ -838,6 +841,9 @@ static int kvm_put_msrs(CPUState *env, int level) kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, env->system_time_msr); kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); +#ifdef KVM_CAP_ASYNC_PF + kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, env->async_pf_en_msr); +#endif } #ifdef KVM_CAP_MCE if (env->mcg_cap) { @@ -1064,6 +1070,9 @@ static int kvm_get_msrs(CPUState *env) #endif msrs[n++].index = MSR_KVM_SYSTEM_TIME; msrs[n++].index = MSR_KVM_WALL_CLOCK; +#ifdef KVM_CAP_ASYNC_PF + msrs[n++].index = MSR_KVM_ASYNC_PF_EN; +#endif #ifdef KVM_CAP_MCE if (env->mcg_cap) { @@ -1135,6 +1144,11 @@ static int kvm_get_msrs(CPUState *env) } #endif break; +#ifdef KVM_CAP_ASYNC_PF + case MSR_KVM_ASYNC_PF_EN: + env->async_pf_en_msr = msrs[i].data; + break; +#endif } } diff --git a/target-i386/machine.c b/target-i386/machine.c index 5f8376c..d78eceb 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -373,6 +373,24 @@ static int cpu_post_load(void *opaque, int version_id) return 0; } +static bool async_pf_msr_needed(void *opaque) +{ + CPUState *cpu = opaque; + + return cpu->async_pf_en_msr != 0; +} + +static const VMStateDescription vmstate_async_pf_msr = { + .name = "cpu/async_pf_msr", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField []) { + VMSTATE_UINT64(async_pf_en_msr, CPUState), + VMSTATE_END_OF_LIST() + } +}; + static const VMStateDescription vmstate_cpu = { .name = "cpu", .version_id = CPU_SAVE_VERSION, @@ -475,6 +493,14 @@ static const VMStateDescription vmstate_cpu = { VMSTATE_YMMH_REGS_VARS(ymmh_regs, CPUState, CPU_NB_REGS, 12), VMSTATE_END_OF_LIST() /* The above list is not sorted /wrt version numbers, watch out! */ + }, + .subsections = (VMStateSubsection []) { + { + .vmsd = &vmstate_async_pf_msr, + .needed = async_pf_msr_needed, + } , { + /* empty */ + } } }; |