Re: [Xen-devel] [PATCH 1/5] xen/vm_event: Added support for XSETBV events

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 06.05.15 at 19:12, <rcojocaru@xxxxxxxxxxxxxxx> wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -2966,6 +2966,8 @@ int hvm_handle_xsetbv(u32 index, u64 new_bv)
>  {
>      struct segment_register sreg;
>  
> +    hvm_event_xsetbv(index, new_bv);
> +
>      hvm_get_segment_register(current, x86_seg_ss, &sreg);
>      if ( sreg.attr.fields.dpl != 0 )
>          goto err;

I don't think the event should be sent before having done at least
the CPL check.

Jan


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