From: Eric Biggers <ebiggers@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] x86/cpufeatures: Make AVX-VNNI depend on AVX
Date: Wed, 19 Feb 2025 22:01:24 -0800 [thread overview]
Message-ID: <20250220060124.89622-1-ebiggers@kernel.org> (raw)
From: Eric Biggers <ebiggers@google.com>
The noxsave option disables support for AVX, but support for the
AVX-VNNI feature was still declared on CPUs that support it. Fix this.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
arch/x86/kernel/cpu/cpuid-deps.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
index 8bd84114c2d96..df838e3bdbe02 100644
--- a/arch/x86/kernel/cpu/cpuid-deps.c
+++ b/arch/x86/kernel/cpu/cpuid-deps.c
@@ -43,10 +43,11 @@ static const struct cpuid_dep cpuid_deps[] = {
{ X86_FEATURE_SSSE3, X86_FEATURE_XMM2, },
{ X86_FEATURE_F16C, X86_FEATURE_XMM2, },
{ X86_FEATURE_AES, X86_FEATURE_XMM2 },
{ X86_FEATURE_SHA_NI, X86_FEATURE_XMM2 },
{ X86_FEATURE_GFNI, X86_FEATURE_XMM2 },
+ { X86_FEATURE_AVX_VNNI, X86_FEATURE_AVX },
{ X86_FEATURE_FMA, X86_FEATURE_AVX },
{ X86_FEATURE_VAES, X86_FEATURE_AVX },
{ X86_FEATURE_VPCLMULQDQ, X86_FEATURE_AVX },
{ X86_FEATURE_AVX2, X86_FEATURE_AVX, },
{ X86_FEATURE_AVX512F, X86_FEATURE_AVX, },
base-commit: 87a132e73910e8689902aed7f2fc229d6908383b
--
2.48.1
next reply other threads:[~2025-02-20 6:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 6:01 Eric Biggers [this message]
2025-02-21 13:27 ` [tip: x86/urgent] x86/cpufeatures: Make AVX-VNNI depend on AVX tip-bot2 for Eric Biggers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250220060124.89622-1-ebiggers@kernel.org \
--to=ebiggers@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox