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authorVadim Rozenfeld2014-01-23 14:40:47 +0100
committerPaolo Bonzini2014-02-03 17:33:55 +0100
commit1c90ef2619dd6e5c4fec7e9e18c04c0a08e93aac (patch)
treef79d7a86c624020e8fb6cf0624618e50948a9bed /target-i386/kvm.c
parentkvm: make availability of Hyper-V enlightenments dependent on KVM_CAP_HYPERV (diff)
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kvm: make hyperv hypercall and guest os id MSRs migratable.
Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target-i386/kvm.c')
-rw-r--r--target-i386/kvm.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index e6831b27fe..fade2c99a7 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -1230,8 +1230,10 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
env->msr_global_ctrl);
}
if (has_msr_hv_hypercall) {
- kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0);
- kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0);
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID,
+ env->msr_hv_guest_os_id);
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL,
+ env->msr_hv_hypercall);
}
if (has_msr_hv_vapic) {
kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0);
@@ -1520,6 +1522,10 @@ static int kvm_get_msrs(X86CPU *cpu)
}
}
+ if (has_msr_hv_hypercall) {
+ msrs[n++].index = HV_X64_MSR_HYPERCALL;
+ msrs[n++].index = HV_X64_MSR_GUEST_OS_ID;
+ }
msr_data.info.nmsrs = n;
ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, &msr_data);
if (ret < 0) {
@@ -1627,6 +1633,12 @@ static int kvm_get_msrs(X86CPU *cpu)
case MSR_P6_EVNTSEL0 ... MSR_P6_EVNTSEL0 + MAX_GP_COUNTERS - 1:
env->msr_gp_evtsel[index - MSR_P6_EVNTSEL0] = msrs[i].data;
break;
+ case HV_X64_MSR_HYPERCALL:
+ env->msr_hv_hypercall = msrs[i].data;
+ break;
+ case HV_X64_MSR_GUEST_OS_ID:
+ env->msr_hv_guest_os_id = msrs[i].data;
+ break;
}
}