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authorMike Waychison <mikew@google.com>2011-07-23 00:31:45 -0700
committerAvi Kivity <avi@redhat.com>2011-09-25 19:17:58 +0300
commitd1613ad5d0018a009bd4865b0fa5930abb5ed259 (patch)
treeb901e359168ad8b5721a9b3ea094431635712586
parent14fa67ee95d4f7313fbf149fe37faccb903857c8 (diff)
KVM: Really fix HV_X64_MSR_APIC_ASSIST_PAGE
Commit 0945d4b228 tried to fix the get_msr path for the HV_X64_MSR_APIC_ASSIST_PAGE msr, but was poorly tested. We should be returning 0 if the read succeeded, and passing the value back to the caller via the pdata out argument, not returning the value directly. Signed-off-by: Mike Waychison <mikew@google.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/x86/kvm/x86.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e80f0d7c2c0d..6cb353c83a12 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1826,7 +1826,8 @@ static int get_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 *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;
+ data = vcpu->arch.hv_vapic;
+ break;
default:
pr_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
return 1;