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Re: [PATCH v1 0/8] s390x/tcg: Implement some z14 facilities

From: David Hildenbrand
Subject: Re: [PATCH v1 0/8] s390x/tcg: Implement some z14 facilities
Date: Mon, 28 Sep 2020 13:54:08 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0

On 26.09.20 00:43, Richard Henderson wrote:
> On 9/22/20 3:31 AM, David Hildenbrand wrote:
>> With this patchset, I can boot a kernel compiled for z14 (requiring
>> Miscellaneous-Instruction-Extensions Facility 2) (using -cpu max).
> Excellent.
> Looks like it wouldn't take too much additional work for z15, if you're of a
> mind while we're at it.

Yes, on my todo list (however might take some time until I get to it).
I'm focusing on z14 right now because next-gen distributions will most
probably require at least z14 hw, so we're prepared for that.

I'm still wrapping my head around how to best implement the crazy VECTOR
FP MINIMUM / MAXIMUM stuff in the least ugly way (expressing all cases
via if/else/switch is just horribly error-prone).


David / dhildenb

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