linux-kernel - Re: [PATCH v3 12/16] kunit: qemu_configs: loongarch: Enable LSX/LSAX

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Message-ID: <CABVgOSkgOgjiZf56RzmaP0Uc5Q4A3-1FEXCJMYM8wBDs4xv1_A@mail.gmail.com>
Date: Fri, 20 Jun 2025 17:37:57 +0800
From: David Gow <davidgow@...gle.com>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Cc: Masahiro Yamada <masahiroy@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, Willy Tarreau <w@....eu>, 
	Thomas Weißschuh <linux@...ssschuh.net>, 
	Brendan Higgins <brendan.higgins@...ux.dev>, Rae Moar <rmoar@...gle.com>, 
	Shuah Khan <shuah@...nel.org>, Jonathan Corbet <corbet@....net>, 
	Nicolas Schier <nicolas.schier@...ux.dev>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Alexandre Ghiti <alex@...ti.fr>, Christophe Leroy <christophe.leroy@...roup.eu>, 
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com, 
	linux-doc@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	workflows@...r.kernel.org
Subject: Re: [PATCH v3 12/16] kunit: qemu_configs: loongarch: Enable LSX/LSAX

On Wed, 11 Jun 2025 at 15:38, Thomas Weißschuh
<thomas.weissschuh@...utronix.de> wrote:
>
> The upcoming kunit UAPI framework will run userspace executables as part of
> kunit. These may use the LSX or LASX instructions.
>
> Make sure the kunit kernel can handle these instructions.
>
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> ---

Looks fine to me. I confess to not knowing much about the details of
Loongarch CPUs, though, so while it hasn't broken anything here, I
make no further guarantees.

Reviewed-by: David Gow <davidgow@...gle.com>

Cheers,
-- David


>  tools/testing/kunit/qemu_configs/loongarch.py | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/tools/testing/kunit/qemu_configs/loongarch.py b/tools/testing/kunit/qemu_configs/loongarch.py
> index a92422967d1da9f1658ef1e80d0d7365ddbae307..1dba755284f11ffc94d8946105b0cfa49cb6f604 100644
> --- a/tools/testing/kunit/qemu_configs/loongarch.py
> +++ b/tools/testing/kunit/qemu_configs/loongarch.py
> @@ -11,6 +11,8 @@ CONFIG_PVPANIC_PCI=y
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
>  CONFIG_SERIAL_OF_PLATFORM=y
> +CONFIG_CPU_HAS_LSX=y
> +CONFIG_CPU_HAS_LASX=y
>  ''',
>                            qemu_arch='loongarch64',
>                            kernel_path='arch/loongarch/boot/vmlinux.elf',
>
> --
> 2.49.0
>

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