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| author | Mike Waychison <mikew@google.com> | 2011-07-21 15:38:10 -0700 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-09-25 19:17:58 +0300 |
| commit | 14fa67ee95d4f7313fbf149fe37faccb903857c8 (patch) | |
| tree | 37bb43f42e4ba4758788300bcf2eb7a1ed6069fb /arch/x86/kvm/x86.c | |
| parent | 2b3c246a682c50f5415c71fc5387a114a6f0d643 (diff) | |
| download | lwn-14fa67ee95d4f7313fbf149fe37faccb903857c8.tar.gz lwn-14fa67ee95d4f7313fbf149fe37faccb903857c8.zip | |
KVM: x86: get_msr support for HV_X64_MSR_APIC_ASSIST_PAGE
"get" support for the HV_X64_MSR_APIC_ASSIST_PAGE msr was missing, even
though it is explicitly enumerated as something the vmm should save in
msrs_to_save and reported to userland via the KVM_GET_MSR_INDEX_LIST
ioctl.
Add "get" support for HV_X64_MSR_APIC_ASSIST_PAGE. We simply return the
guest visible value of this register, which seems to be correct as a set
on the register is validated for us already.
Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 41dfebea6218..e80f0d7c2c0d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1825,6 +1825,8 @@ static int get_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) return kvm_hv_vapic_msr_read(vcpu, APIC_ICR, pdata); case HV_X64_MSR_TPR: return kvm_hv_vapic_msr_read(vcpu, APIC_TASKPRI, pdata); + case HV_X64_MSR_APIC_ASSIST_PAGE: + return vcpu->arch.hv_vapic; default: pr_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr); return 1; |