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Re: [Xen-devel] [PATCH 1/5] x86emul: fix rIP handling

To: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date: Wed, 17 Feb 2016 17:51:48 +0000
Cc: Keir Fraser <keir@xxxxxxx>
Delivery-date: Wed, 17 Feb 2016 17:52:11 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 17/02/16 16:32, Jan Beulich wrote:
> Deal with rIP just like with any other register: Truncate to designated
> width upon entry, write back the zero-extended 32-bit value when
> emulating 32-bit code, and leave the upper 48 bits unchanged for 16-bit
> code.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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References:
- [Xen-devel] [PATCH 0/5] x86: XSA-170 follow-up
  - From: Jan Beulich
- [Xen-devel] [PATCH 1/5] x86emul: fix rIP handling
  - From: Jan Beulich

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