From: Will Deacon <will@kernel.org>
To: Ard Biesheuvel <ardb+git@google.com>
Cc: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Ard Biesheuvel <ardb@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH v3 7/8] arm64/efi: Move uaccess en/disable out of efi_set_pgd()
Date: Fri, 19 Sep 2025 12:36:00 +0100 [thread overview]
Message-ID: <aM1AIPmNGik2fqL3@willie-the-truck> (raw)
In-Reply-To: <20250918103010.2973462-17-ardb+git@google.com>
On Thu, Sep 18, 2025 at 12:30:18PM +0200, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@kernel.org>
>
> efi_set_pgd() will no longer be called when invoking EFI runtime
> services via the efi_rts_wq work queue, but the uaccess en/disable are
> still needed when using PAN emulation using TTBR0 switching. So move
> these into the callers.
>
> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
> ---
> arch/arm64/include/asm/efi.h | 13 +++----------
> arch/arm64/kernel/efi.c | 18 ++++++++++++++++++
> 2 files changed, 21 insertions(+), 10 deletions(-)
Thanks. This addresses the comment I made last time around:
Acked-by: Will Deacon <will@kernel.org>
Will
next prev parent reply other threads:[~2025-09-19 11:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-18 10:30 [PATCH v3 0/8] arm64: Make EFI calls preemptible Ard Biesheuvel
2025-09-18 10:30 ` [PATCH v3 1/8] efi: Add missing static initializer for efi_mm::cpus_allowed_lock Ard Biesheuvel
2025-09-18 10:30 ` [PATCH v3 2/8] efi/runtime: Return success/failure from arch_efi_call_virt_setup() Ard Biesheuvel
2025-09-18 10:30 ` [PATCH v3 3/8] efi/runtime: Deal with arch_efi_call_virt_setup() returning failure Ard Biesheuvel
2025-09-18 10:30 ` [PATCH v3 4/8] arm64/fpsimd: Permit kernel mode NEON with IRQs off Ard Biesheuvel
2025-09-19 11:33 ` Will Deacon
2025-09-18 10:30 ` [PATCH v3 5/8] arm64/fpsimd: Drop special handling for EFI runtime services Ard Biesheuvel
2025-09-18 11:57 ` Ard Biesheuvel
2025-09-18 13:10 ` Mark Brown
2025-09-22 6:55 ` Ard Biesheuvel
2025-09-18 10:30 ` [PATCH v3 6/8] arm64/efi: Use a mutex to protect the EFI stack and FP/SIMD state Ard Biesheuvel
2025-09-19 11:35 ` Will Deacon
2025-09-19 13:42 ` Ard Biesheuvel
2025-09-19 13:54 ` Will Deacon
2025-09-18 10:30 ` [PATCH v3 7/8] arm64/efi: Move uaccess en/disable out of efi_set_pgd() Ard Biesheuvel
2025-09-19 11:36 ` Will Deacon [this message]
2025-09-18 10:30 ` [PATCH v3 8/8] arm64/efi: Call EFI runtime services without disabling preemption Ard Biesheuvel
2025-09-19 11:36 ` Will Deacon
2025-09-18 11:33 ` [PATCH v3 0/8] arm64: Make EFI calls preemptible Ard Biesheuvel
2025-09-18 11:44 ` Will Deacon
2025-09-18 11:48 ` Ard Biesheuvel
2025-09-19 11:38 ` Will Deacon
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