Re: [Qemu-stable] [PATCH] target-i386: do not read/write MSR_TSC_AUX from KVM if CPUID bit is not set

[Eduardo Habkost]

On Wed, Mar 30, 2016 at 10:59:42PM +0200, Paolo Bonzini wrote:
> KVM does not let you read or write this MSR if the corresponding CPUID
> bit is not set.  This in turn causes MSRs that come after MSR_TSC_AUX
> to be ignored by KVM_SET_MRSS.
> 
> One visible symptom is that s3.flat from kvm-unit-tests fails with
> CPUs that do not have RDTSCP, because the SMBASE is not reset to
> 0x30000 after reset.
> 
> Fixes: c9b8f6b6210847b4381c5b2ee172b1c7eb9985d6
> Cc: address@hidden
> Signed-off-by: Paolo Bonzini <address@hidden>

Reviewed-by: Eduardo Habkost <address@hidden>

-- 
Eduardo