Re: [Qemu-devel] [PATCH] kvm: x86: Fix initial kvm_has_msr_star

[Avi Kivity]

On 12/06/2009 04:51 PM, Jan Kiszka wrote:
> KVM_GET_MSR_INDEX_LIST returns -E2BIG when the provided space is too
> small for all MSRs. But this is precisely the error we trigger with the
> initial request in order to obtain that size. Do not fail in that case.
>
> This caused a subtle corruption of the guest state as MSR_STAR was not
> properly saved/restored. The corruption became visible with latest kvm
> optimizing the MSR updates.
>    

Strong ack.  Anthony, please apply ASAP.  This is worthy of a 0.11.2, IMO.

--
error compiling committee.c: too many arguments to function