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Re: [Xen-devel] [PATCH 1/5] xen/vm_event: Added support for XSETBV events
- To: Jan Beulich <JBeulich@xxxxxxxx>
- From: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
- Date: Fri, 08 May 2015 15:23:21 +0300
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On 05/08/2015 03:21 PM, Jan Beulich wrote:
>>>> 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.
Ack.
Thanks,
Razvan
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