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Re: [Xen-devel] [PATCH] x86/shim: don't use 32-bit compare on boolean variable

To: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date: Wed, 31 Jan 2018 15:36:41 +0000
Delivery-date: Wed, 31 Jan 2018 15:47:23 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 31/01/18 15:33, Jan Beulich wrote:
> Current upstream gas silently assumes 32-bit operand size for most
> operations where the size can't be inferred from an involved register
> (my own one doesn't anymore, which is how I've noticed this). It is pure
> luck that the 3 bytes following pvh_boot are currently padding ones.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

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

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References:
- [Xen-devel] [PATCH] x86/shim: don't use 32-bit compare on boolean variable
  - From: Jan Beulich

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