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Message-ID: <20200709084236.GA18009@e121166-lin.cambridge.arm.com>
Date: Thu, 9 Jul 2020 09:42:36 +0100
From: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
will@...nel.org, catalin.marinas@....com, sudeep.holla@....com,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access
On Fri, Jun 26, 2020 at 05:58:30PM +0200, Ard Biesheuvel wrote:
> v2:
> - do a more elaborate check on the region, against the EFI memory map
>
> v3:
> - split into two patches
> - fallback to __ioremap() for ACPI reclaim memory, in case it is not covered
> by the linear mapping (e.g., when booting a kdump kernel)
>
> Ard Biesheuvel (2):
> arm64/acpi: disallow AML memory opregions to access kernel memory
> arm64/acpi: disallow writeable AML opregion mapping for EFI code
> regions
>
> arch/arm64/include/asm/acpi.h | 15 +---
> arch/arm64/kernel/acpi.c | 75 ++++++++++++++++++++
> 2 files changed, 76 insertions(+), 14 deletions(-)
Thanks Ard for fixing this, for the series:
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
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