From: Mark Rutland <mark.rutland@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: broonie@kernel.org, mark.rutland@arm.com
Subject: [BOOT-WRAPPER PATCH 0/3] Enable use of FPMR and ZT0
Date: Sun, 11 May 2025 10:52:08 +0100 [thread overview]
Message-ID: <20250511095211.1638852-1-mark.rutland@arm.com> (raw)
When the kernel gained support for FEAT_FPMR and FEAT_SME2,
corresponding support was not added to the boot-wrapper. Both of these
features require some (trivial) enablement to avoid traps being taken to
EL3 durung normal operation.
These patches add the missing support to the boot-wrapper.
The first two patches were prviously posted as part of an earlier
series:
https://lore.kernel.org/linux-arm-kernel/20241126153955.477569-1-mark.rutland@arm.com/
I've updated their commit messages for clarity, but I have made no
functional changes.
Mark.
Mark Rutland (3):
aarch64: shuffle ID_AA64PFR{0,1}_EL1 definitions
aarch64: Enable use of FPMR
aarch64: Enable use of ZT0
arch/aarch64/include/asm/cpu.h | 11 ++++++++---
arch/aarch64/init.c | 6 ++++++
2 files changed, 14 insertions(+), 3 deletions(-)
--
2.30.2
next reply other threads:[~2025-05-11 9:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-11 9:52 Mark Rutland [this message]
2025-05-11 9:52 ` [BOOT-WRAPPER PATCH 1/3] aarch64: shuffle ID_AA64PFR{0,1}_EL1 definitions Mark Rutland
2025-05-11 9:52 ` [BOOT-WRAPPER PATCH 2/3] aarch64: Enable use of FPMR Mark Rutland
2025-05-11 9:52 ` [BOOT-WRAPPER PATCH 3/3] aarch64: Enable use of ZT0 Mark Rutland
2025-05-14 6:07 ` [BOOT-WRAPPER PATCH 0/3] Enable use of FPMR and ZT0 Mark Rutland
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