Messages in this thread | | | From | Wanpeng Li <> | Date | Fri, 23 Oct 2020 08:27:21 +0800 | Subject | Re: [PATCH] KVM: X86: Expose KVM_HINTS_REALTIME in KVM_GET_SUPPORTED_CPUID |
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On Thu, 22 Oct 2020 at 21:02, Paolo Bonzini <pbonzini@redhat.com> wrote: > > On 22/10/20 03:34, Wanpeng Li wrote: > > From: Wanpeng Li <wanpengli@tencent.com> > > > > Per KVM_GET_SUPPORTED_CPUID ioctl documentation: > > > > This ioctl returns x86 cpuid features which are supported by both the > > hardware and kvm in its default configuration. > > > > A well-behaved userspace should not set the bit if it is not supported. > > > > Suggested-by: Jim Mattson <jmattson@google.com> > > Signed-off-by: Wanpeng Li <wanpengli@tencent.com> > > It's common for userspace to copy all supported CPUID bits to > KVM_SET_CPUID2, I don't think this is the right behavior for > KVM_HINTS_REALTIME. > > (But maybe this was discussed already; if so, please point me to the > previous discussion).
The discussion is here. :) https://www.spinics.net/lists/kvm/msg227265.html
Wanpeng
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