From: Catalin Marinas <catalin.marinas@arm.com>
To: stable@vger.kernel.org
Cc: Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6.18.y 0/6] arm64: Stable backport of the C1-Pro erratum 4193714 workaround
Date: Tue, 21 Apr 2026 11:00:11 +0100 [thread overview]
Message-ID: <20260421100018.335793-1-catalin.marinas@arm.com> (raw)
Hi Greg, Sasha,
As the workaround for this CPU bug just went in, I'm sending it for
stable 6.18. The first two patches are prerequisites to make the
backporting easier. I do not intend to send them for stable 6.12 since
SME is not supported in that version anyway (Android folk did their own
backports already).
A heads-up, the workaround itself is larger than the recommended max 100
lines suitability for stable backports.
Thanks.
Catalin Marinas (4):
arm64: tlb: Introduce __tlbi_sync_s1ish_{kernel,batch}() for TLB
maintenance
arm64: tlb: Pass the corresponding mm to __tlbi_sync_s1ish()
arm64: cputype: Add C1-Pro definitions
arm64: errata: Work around early CME DVMSync acknowledgement
Mark Rutland (2):
arm64: tlb: Allow XZR argument to TLBI ops
arm64: tlb: Optimize ARM64_WORKAROUND_REPEAT_TLBI
Documentation/arch/arm64/silicon-errata.rst | 2 +
arch/arm64/Kconfig | 12 ++
arch/arm64/include/asm/cpucaps.h | 2 +
arch/arm64/include/asm/cputype.h | 2 +
arch/arm64/include/asm/fpsimd.h | 21 +++
arch/arm64/include/asm/tlbbatch.h | 10 +-
arch/arm64/include/asm/tlbflush.h | 143 ++++++++++++++++----
arch/arm64/kernel/cpu_errata.c | 30 ++++
arch/arm64/kernel/entry-common.c | 3 +
arch/arm64/kernel/fpsimd.c | 79 +++++++++++
arch/arm64/kernel/process.c | 36 +++++
arch/arm64/kernel/sys_compat.c | 2 +-
arch/arm64/kvm/hyp/nvhe/mm.c | 2 +-
arch/arm64/kvm/hyp/nvhe/tlb.c | 8 +-
arch/arm64/kvm/hyp/pgtable.c | 2 +-
arch/arm64/kvm/hyp/vhe/tlb.c | 10 +-
arch/arm64/tools/cpucaps | 1 +
17 files changed, 325 insertions(+), 40 deletions(-)
next reply other threads:[~2026-04-21 10:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 10:00 Catalin Marinas [this message]
2026-04-21 10:00 ` [PATCH 6.18.y 1/6] arm64: tlb: Allow XZR argument to TLBI ops Catalin Marinas
2026-04-21 10:00 ` [PATCH 6.18.y 2/6] arm64: tlb: Optimize ARM64_WORKAROUND_REPEAT_TLBI Catalin Marinas
2026-04-21 10:00 ` [PATCH 6.18.y 3/6] arm64: tlb: Introduce __tlbi_sync_s1ish_{kernel,batch}() for TLB maintenance Catalin Marinas
2026-04-23 9:01 ` Patch "arm64: tlb: Introduce __tlbi_sync_s1ish_{kernel,batch}() for TLB maintenance" has been added to the 6.18-stable tree gregkh
2026-04-21 10:00 ` [PATCH 6.18.y 4/6] arm64: tlb: Pass the corresponding mm to __tlbi_sync_s1ish() Catalin Marinas
2026-04-23 9:01 ` Patch "arm64: tlb: Pass the corresponding mm to __tlbi_sync_s1ish()" has been added to the 6.18-stable tree gregkh
2026-04-21 10:00 ` [PATCH 6.18.y 5/6] arm64: cputype: Add C1-Pro definitions Catalin Marinas
2026-04-21 10:00 ` [PATCH 6.18.y 6/6] arm64: errata: Work around early CME DVMSync acknowledgement Catalin Marinas
2026-04-23 9:01 ` Patch "arm64: errata: Work around early CME DVMSync acknowledgement" has been added to the 6.18-stable tree gregkh
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=20260421100018.335793-1-catalin.marinas@arm.com \
--to=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=stable@vger.kernel.org \
--cc=will@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