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Date: Fri, 26 Jun 2020 17:58:30 +0200
From: Ard Biesheuvel <ardb@...nel.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: linux-acpi@...r.kernel.org,
	will@...nel.org,
	catalin.marinas@....com,
	lorenzo.pieralisi@....com,
	sudeep.holla@....com,
	kernel-hardening@...ts.openwall.com,
	Ard Biesheuvel <ardb@...nel.org>
Subject: [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access

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(-)

-- 
2.27.0

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