* [PATCH] x86/kvm/hyper-v: don't announce GUEST IDLE MSR support
@ 2019-01-24 14:27 Vitaly Kuznetsov
2019-01-26 8:11 ` Paolo Bonzini
0 siblings, 1 reply; 2+ messages in thread
From: Vitaly Kuznetsov @ 2019-01-24 14:27 UTC (permalink / raw)
To: kvm; +Cc: Paolo Bonzini, Radim Krčmář, Roman Kagan, linux-kernel
HV_X64_MSR_GUEST_IDLE_AVAILABLE appeared in kvm_vcpu_ioctl_get_hv_cpuid()
by mistake: it announces support for HV_X64_MSR_GUEST_IDLE (0x400000F0)
which we don't support in KVM (yet).
Fixes: 2bc39970e932 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
arch/x86/kvm/hyperv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index c90a5352d158..ac44a681f065 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1832,7 +1832,6 @@ int kvm_vcpu_ioctl_get_hv_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid,
ent->eax |= HV_X64_MSR_VP_INDEX_AVAILABLE;
ent->eax |= HV_X64_MSR_RESET_AVAILABLE;
ent->eax |= HV_MSR_REFERENCE_TSC_AVAILABLE;
- ent->eax |= HV_X64_MSR_GUEST_IDLE_AVAILABLE;
ent->eax |= HV_X64_ACCESS_FREQUENCY_MSRS;
ent->eax |= HV_X64_ACCESS_REENLIGHTENMENT;
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] x86/kvm/hyper-v: don't announce GUEST IDLE MSR support
2019-01-24 14:27 [PATCH] x86/kvm/hyper-v: don't announce GUEST IDLE MSR support Vitaly Kuznetsov
@ 2019-01-26 8:11 ` Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2019-01-26 8:11 UTC (permalink / raw)
To: Vitaly Kuznetsov, kvm
Cc: Radim Krčmář, Roman Kagan, linux-kernel
On 24/01/19 15:27, Vitaly Kuznetsov wrote:
> HV_X64_MSR_GUEST_IDLE_AVAILABLE appeared in kvm_vcpu_ioctl_get_hv_cpuid()
> by mistake: it announces support for HV_X64_MSR_GUEST_IDLE (0x400000F0)
> which we don't support in KVM (yet).
>
> Fixes: 2bc39970e932 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> ---
> arch/x86/kvm/hyperv.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
> index c90a5352d158..ac44a681f065 100644
> --- a/arch/x86/kvm/hyperv.c
> +++ b/arch/x86/kvm/hyperv.c
> @@ -1832,7 +1832,6 @@ int kvm_vcpu_ioctl_get_hv_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid,
> ent->eax |= HV_X64_MSR_VP_INDEX_AVAILABLE;
> ent->eax |= HV_X64_MSR_RESET_AVAILABLE;
> ent->eax |= HV_MSR_REFERENCE_TSC_AVAILABLE;
> - ent->eax |= HV_X64_MSR_GUEST_IDLE_AVAILABLE;
> ent->eax |= HV_X64_ACCESS_FREQUENCY_MSRS;
> ent->eax |= HV_X64_ACCESS_REENLIGHTENMENT;
>
>
Queued, thanks.
Paolo
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-01-26 8:11 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-01-24 14:27 [PATCH] x86/kvm/hyper-v: don't announce GUEST IDLE MSR support Vitaly Kuznetsov
2019-01-26 8:11 ` Paolo Bonzini
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).