diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2013-02-19 23:27:20 -0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-04-17 23:27:24 -0300 |
| commit | 917367aa968fd4fef29d340e0c7ec8c608dffaab (patch) | |
| tree | e3d7ad3f079a695f4389c41a29a31106f3aa43ee /target-i386/kvm.c | |
| parent | 614413f7f9a88d97ab40ecabd1c7920fb288f820 (diff) | |
target-i386: kvm: save/restore steal time MSR
Read and write steal time MSR, so that reporting is functional across
migration.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'target-i386/kvm.c')
| -rw-r--r-- | target-i386/kvm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 397afebecb..0e7cc8113f 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -68,6 +68,7 @@ static bool has_msr_tsc_deadline; static bool has_msr_async_pf_en; static bool has_msr_pv_eoi_en; static bool has_msr_misc_enable; +static bool has_msr_kvm_steal_time; static int lm_capable_kernel; bool kvm_allows_irq0_override(void) @@ -507,6 +508,8 @@ int kvm_arch_init_vcpu(CPUState *cs) has_msr_pv_eoi_en = c->eax & (1 << KVM_FEATURE_PV_EOI); + has_msr_kvm_steal_time = c->eax & (1 << KVM_FEATURE_STEAL_TIME); + cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); for (i = 0; i <= limit; i++) { @@ -1107,6 +1110,10 @@ static int kvm_put_msrs(X86CPU *cpu, int level) kvm_msr_entry_set(&msrs[n++], MSR_KVM_PV_EOI_EN, env->pv_eoi_en_msr); } + if (has_msr_kvm_steal_time) { + kvm_msr_entry_set(&msrs[n++], MSR_KVM_STEAL_TIME, + env->steal_time_msr); + } if (hyperv_hypercall_available()) { kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0); kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0); @@ -1360,6 +1367,9 @@ static int kvm_get_msrs(X86CPU *cpu) if (has_msr_pv_eoi_en) { msrs[n++].index = MSR_KVM_PV_EOI_EN; } + if (has_msr_kvm_steal_time) { + msrs[n++].index = MSR_KVM_STEAL_TIME; + } if (env->mcg_cap) { msrs[n++].index = MSR_MCG_STATUS; @@ -1445,6 +1455,9 @@ static int kvm_get_msrs(X86CPU *cpu) case MSR_KVM_PV_EOI_EN: env->pv_eoi_en_msr = msrs[i].data; break; + case MSR_KVM_STEAL_TIME: + env->steal_time_msr = msrs[i].data; + break; } } |