"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@xxxxxxxxxx> --- 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 77c9d86..15148ef 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1748,6 +1748,8 @@ 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; -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
