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Commit 11c4b1ca authored by Andrey Smetanin's avatar Andrey Smetanin Committed by Paolo Bonzini
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kvm/x86: Hyper-V HV_X64_MSR_VP_INDEX export for QEMU. 



Insert Hyper-V HV_X64_MSR_VP_INDEX into msr's emulated list,
so QEMU can set Hyper-V features cpuid HV_X64_MSR_VP_INDEX_AVAILABLE
bit correctly. KVM emulation part is in place already.

Necessary to support loading of winhv.sys in guest, which in turn is
required to support Windows VMBus.

Signed-off-by: default avatarAndrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: default avatarRoman Kagan <rkagan@virtuozzo.com>
Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent e516cebb

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -953,6 +953,7 @@ static u32 emulated_msrs[] = { 
	HV_X64_MSR_CRASH_P0, HV_X64_MSR_CRASH_P1, HV_X64_MSR_CRASH_P2,

	HV_X64_MSR_CRASH_P3, HV_X64_MSR_CRASH_P4, HV_X64_MSR_CRASH_CTL,

	HV_X64_MSR_RESET,

	HV_X64_MSR_VP_INDEX,

	HV_X64_MSR_APIC_ASSIST_PAGE, MSR_KVM_ASYNC_PF_EN, MSR_KVM_STEAL_TIME,

	MSR_KVM_PV_EOI_EN,