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Diffstat (limited to 'target-i386/kvm.c')
-rw-r--r--target-i386/kvm.c50
1 files changed, 49 insertions, 1 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index d1c2c81..7692b59 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -90,6 +90,7 @@ static bool has_msr_hv_reset;
static bool has_msr_hv_vpindex;
static bool has_msr_hv_runtime;
static bool has_msr_hv_synic;
+static bool has_msr_hv_stimer;
static bool has_msr_mtrr;
static bool has_msr_xss;
@@ -526,7 +527,8 @@ static bool hyperv_enabled(X86CPU *cpu)
cpu->hyperv_reset ||
cpu->hyperv_vpindex ||
cpu->hyperv_runtime ||
- cpu->hyperv_synic);
+ cpu->hyperv_synic ||
+ cpu->hyperv_stimer);
}
static Error *invtsc_mig_blocker;
@@ -630,6 +632,13 @@ int kvm_arch_init_vcpu(CPUState *cs)
env->msr_hv_synic_sint[sint] = HV_SYNIC_SINT_MASKED;
}
}
+ if (cpu->hyperv_stimer) {
+ if (!has_msr_hv_stimer) {
+ fprintf(stderr, "Hyper-V timers aren't supported by kernel\n");
+ return -ENOSYS;
+ }
+ c->eax |= HV_X64_MSR_SYNTIMER_AVAILABLE;
+ }
c = &cpuid_data.entries[cpuid_i++];
c->function = HYPERV_CPUID_ENLIGHTMENT_INFO;
if (cpu->hyperv_relaxed_timing) {
@@ -980,6 +989,10 @@ static int kvm_get_supported_msrs(KVMState *s)
has_msr_hv_synic = true;
continue;
}
+ if (kvm_msr_list->indices[i] == HV_X64_MSR_STIMER0_CONFIG) {
+ has_msr_hv_stimer = true;
+ continue;
+ }
}
}
@@ -1558,6 +1571,19 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
env->msr_hv_synic_sint[j]);
}
}
+ if (has_msr_hv_stimer) {
+ int j;
+
+ for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_config); j++) {
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_STIMER0_CONFIG + j*2,
+ env->msr_hv_stimer_config[j]);
+ }
+
+ for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_count); j++) {
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_STIMER0_COUNT + j*2,
+ env->msr_hv_stimer_count[j]);
+ }
+ }
if (has_msr_mtrr) {
kvm_msr_entry_set(&msrs[n++], MSR_MTRRdefType, env->mtrr_deftype);
kvm_msr_entry_set(&msrs[n++],
@@ -1937,6 +1963,14 @@ static int kvm_get_msrs(X86CPU *cpu)
msrs[n++].index = msr;
}
}
+ if (has_msr_hv_stimer) {
+ uint32_t msr;
+
+ for (msr = HV_X64_MSR_STIMER0_CONFIG; msr <= HV_X64_MSR_STIMER3_COUNT;
+ msr++) {
+ msrs[n++].index = msr;
+ }
+ }
if (has_msr_mtrr) {
msrs[n++].index = MSR_MTRRdefType;
msrs[n++].index = MSR_MTRRfix64K_00000;
@@ -2108,6 +2142,20 @@ static int kvm_get_msrs(X86CPU *cpu)
case HV_X64_MSR_SINT0 ... HV_X64_MSR_SINT15:
env->msr_hv_synic_sint[index - HV_X64_MSR_SINT0] = msrs[i].data;
break;
+ case HV_X64_MSR_STIMER0_CONFIG:
+ case HV_X64_MSR_STIMER1_CONFIG:
+ case HV_X64_MSR_STIMER2_CONFIG:
+ case HV_X64_MSR_STIMER3_CONFIG:
+ env->msr_hv_stimer_config[(index - HV_X64_MSR_STIMER0_CONFIG)/2] =
+ msrs[i].data;
+ break;
+ case HV_X64_MSR_STIMER0_COUNT:
+ case HV_X64_MSR_STIMER1_COUNT:
+ case HV_X64_MSR_STIMER2_COUNT:
+ case HV_X64_MSR_STIMER3_COUNT:
+ env->msr_hv_stimer_count[(index - HV_X64_MSR_STIMER0_COUNT)/2] =
+ msrs[i].data;
+ break;
case MSR_MTRRdefType:
env->mtrr_deftype = msrs[i].data;
break;