On Fri, 2025-01-24 at 15:05 +0000, Fred Griffoul wrote: > The Xen emulation in KVM modifies certain CPUID leaves to expose > TSC information to the guest. > > Previously, these CPUID leaves were updated whenever guest time changed, > but this conflicts with KVM_SET_CPUID/KVM_SET_CPUID2 ioctls which reject > changes to CPUID entries on running vCPUs. > > Fix this by updating the TSC information directly in the CPUID emulation > handler instead of modifying the vCPU's CPUID entries. > > Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> > Signed-off-by: Fred Griffoul <fgriffo@xxxxxxxxxxxx> Reviewed-by: David Woodhouse <dwmw@xxxxxxxxxxxx> But I would still like to see a selftest covering it.
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