Re: [Xen-devel] [PATCH 2/4] xen/PVH: Use proper CS selector in long mode

From: Boris Ostrovsky
Date: Wed May 02 2018 - 10:54:45 EST


On 05/02/2018 04:05 AM, Jan Beulich wrote:
>>>> On 30.04.18 at 18:23, <boris.ostrovsky@xxxxxxxxxx> wrote:
>> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> But to understand why things have been working nevertheless it would
> have been nice if the commit message wasn't empty, but instead said
> something like "The two happen to be identical on 64-bit."


Why do you think they are identical? __KERNEL_CS points to entry#12
(which we don't specify in PVH GDT) while __BOOT_CS is the second entry
(which we do create).

-boris