From: Ard Biesheuvel <ardb+git@google.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Brown <broonie@kernel.org>,
Kees Cook <keescook@chromium.org>
Subject: [PATCH 0/2] efi/arm64: Simplify SVE/SME state preserve/restore
Date: Wed, 12 Nov 2025 18:53:17 +0100 [thread overview]
Message-ID: <20251112175316.2841017-4-ardb+git@google.com> (raw)
From: Ard Biesheuvel <ardb@kernel.org>
The EFI specific SVE/SME state preserve/restore logic is unneeded, and
can be removed. Patch #1 adds some lkdtm test cases to emulate the
condition under which this code might be called.
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Ard Biesheuvel (2):
lkdtm/bugs: Add cases for BUG and PANIC occurring in hardirq context
arm64/efi: Remove unneeded SVE/SME fallback preserve/store handling
arch/arm64/kernel/fpsimd.c | 130 +++-----------------
drivers/misc/lkdtm/bugs.c | 53 ++++++++
2 files changed, 73 insertions(+), 110 deletions(-)
--
2.52.0.rc1.455.g30608eb744-goog
next reply other threads:[~2025-11-12 17:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-12 17:53 Ard Biesheuvel [this message]
2025-11-12 17:53 ` [PATCH 1/2] lkdtm/bugs: Add cases for BUG and PANIC occurring in hardirq context Ard Biesheuvel
2025-11-19 17:54 ` Catalin Marinas
2025-12-03 18:02 ` Kees Cook
2025-12-03 18:02 ` Kees Cook
2025-11-12 17:53 ` [PATCH 2/2] arm64/efi: Remove unneeded SVE/SME fallback preserve/store handling Ard Biesheuvel
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