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Re: [PATCH] x86emul: correct {evex} assembler capability check

  • To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Wed, 20 May 2020 15:41:10 +0100
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  • Cc: Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Delivery-date: Wed, 20 May 2020 14:41:43 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 20/05/2020 15:20, Jan Beulich wrote:
> The {evex} pseudo prefix gets rejected by gas for insns not allowing
> EVEX encoding. Except there's a gas bug due to which its check gets
> bypassed for insns without operands. Let's not rely on that bug to
> remain there.
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

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



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