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
