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Re: [Xen-devel] [PATCH v2] x86: consolidate legacy FPU state loading

On Thu, Jul 05, 2018 at 07:54:43AM -0600, Jan Beulich wrote:
> First of all introduce a helper function instead of replicating almost
> the same code for PV and HVM. The differences between the two pieces of
> code actually points out an issue (which is also addressed here): In
> the HVM case FCW would not have been set to FCW_RESET in certain cases
> (note for example that XRSTOR loads FCW_DEFAULT rather then FCW_RESET
> when the respective xstate_bv bit is clear).
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---

Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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