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Re: [RFC PATCH v2 03/15] s390x/cpumodel: add msa12 changes


From: Janosch Frank
Subject: Re: [RFC PATCH v2 03/15] s390x/cpumodel: add msa12 changes
Date: Mon, 9 Dec 2024 16:45:25 +0100
User-agent: Mozilla Thunderbird

On 12/9/24 4:24 PM, Hendrik Brueckner wrote:
On Mon, Dec 09, 2024 at 03:48:11PM +0100, Janosch Frank wrote:
On 12/6/24 1:27 PM, Hendrik Brueckner wrote:
MSA12 changes the KIMD/KLMD instruction format for SHA3/SHAKE.

Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>

MSA6 is a prereq, no?

MSA6 is the prereq. However, there is no explicit feature definition
for the MSA_EXT_6 due to no STFLE and subfunctions only.  The only
way would be to pick one or more / all MSA6 subfunctions for which
there is a feature defined...

Which you did for MSA11, no?

I'm not saying that subfunc handling is great :)



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