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Re: [qemu-s390x] [PATCH v2 00/41] s390x/tcg: Vector Instruction Support

From: Cornelia Huck
Subject: Re: [qemu-s390x] [PATCH v2 00/41] s390x/tcg: Vector Instruction Support Part 2
Date: Wed, 17 Apr 2019 09:54:56 +0200

On Tue, 16 Apr 2019 20:52:20 +0200
David Hildenbrand <address@hidden> wrote:

> This is the second part of vector instruction support for s390x. It is
> based on the series soon to land upstream:
>     [PATCH 0/9] tcg: Add tcg_gen_extract2_{i32,i64}
> Part 1: Vector Support Instructions
> Part 2: Vector Integer Instructions
> Part 3: Vector String Instructions
> Part 4: Vector Floating-Point Instructions
> The current state can be found at (kept updated):
>     https://github.com/davidhildenbrand/qemu/tree/vx
> With the current state I can boot Linux kernel + user space compiled with
> SIMD support. This allows to boot distributions compiled exclusively for
> z13, requiring SIMD support. Also, it is now possible to build a complete
> kernel using rpmbuild as quite some issues have been sorted out.
> In this part, all Vector Integer Instructions introduced with the
> "Vector Facility" are added. Some instructions part of the Vector Extension
> Facilities are also added.
> v1 -> v2:
> - Many suggestions and fixes as outlined by Richard H.
> -- Mostly avoid oom helpers for 128-bit add/sub variants
> -- New vector helpers are not considered for now

FWIW, I'd prefer a pull request for that over picking 41 patches :)
(I'm unlikely to be able to provide more insightful review anyway ;)

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