On Thu, Oct 22, 2020 at 6:02 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > On 22/10/20 03:34, Wanpeng Li wrote: > > From: Wanpeng Li <wanpengli@xxxxxxxxxxx> > > > > 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@xxxxxxxxxx> > > Signed-off-by: Wanpeng Li <wanpengli@xxxxxxxxxxx> > > 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. That is not how the API is defined, but I'm sure you know that. :-) > (But maybe this was discussed already; if so, please point me to the > previous discussion). > > Paolo
