From 14fa67ee95d4f7313fbf149fe37faccb903857c8 Mon Sep 17 00:00:00 2001 From: Mike Waychison Date: Thu, 21 Jul 2011 15:38:10 -0700 Subject: [PATCH] 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 Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/x86.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 41dfebea621..e80f0d7c2c0 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; -- 2.39.5