Re: [PATCH] x86/xen: zero MSR_IA32_SPEC_CTRL before suspend

[Jan Beulich]

>>> On 26.02.18 at 15:08, <jgross@xxxxxxxx> wrote:
> Older Xen versions (4.5 and before) might have problems migrating pv
> guests with MSR_IA32_SPEC_CTRL having a non-zero value. So before
> suspending zero that MSR and restore it after being resumed.
> 
> Cc: stable@xxxxxxxxxxxxxxx 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>