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Re: [Xen-devel] [PATCH v9 04/23] x86emul: test harness adjustments for AVX512F S/G insns
- To: Jan Beulich <JBeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 4 Jul 2019 14:52:38 +0100
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- Cc: Wei Liu <wl@xxxxxxx>, RogerPau Monne <roger.pau@xxxxxxxxxx>
- Delivery-date: Thu, 04 Jul 2019 13:52:45 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 01/07/2019 12:18, Jan Beulich wrote:
> There was an encoding mistake in the EVEX Disp8 test code, which was
> benign (due to %rdx getting set to zero) to all non-vSIB tests as it
> mistakenly encoded <disp8>(%rdx,%rdx) instead of <disp8>(%rdx,%riz). In
> the vSIB case this meant <disp8>(%rdx,%zmm2) instead of the intended
> <disp8>(%rdx,%zmm4).
>
> Likewise the access count check wasn't entirely correct for the S/G
> case: In the quad-word-index but dword-data case only half the number
> of full vector elements get accessed.
>
> As an unrelated change in the main test harness source file distinguish
> the "n/a" messages by bitness.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
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