[PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access

Lorenzo Pieralisi lorenzo.pieralisi at arm.com
Thu Jul 9 04:42:36 EDT 2020


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 at arm.com>



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