Re: [Xen-devel] [XTF PATCH 14/16] vvmx: test vmxon in VMX root w/ CPL = 3 and w/o current VMCS

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 19/12/16 03:46, Haozhong Zhang wrote:
>> However, I am not sure of its purpose.  Why cant you reuse the previous
>> host state area?
>>
>
> Intel SDM says SW should not access or modify the VXMON rgion of a
> logical processor between vmxon and vmxoff. Though I have tested on
> real hardware whether reusing VMXON region would cause any trouble, I
> still want to exclude that possibility/noise from this test.

That is a good reason.  Could you please add a comment to this effect?

~Andrew

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel