Re: [PATCH v2 2/4] efi/arm: map UEFI memory map even w/o runtime services enabled

From: James Morse
Date: Thu Jun 28 2018 - 13:29:28 EST


Hi Akashi,

On 19/06/18 07:44, AKASHI Takahiro wrote:
> Under the current implementation, UEFI memory map will be mapped and made
> available in virtual mappings only if runtime services are enabled.

> But in a later patch, we want to use UEFI memory map in acpi_os_ioremap()
> to create mappings of ACPI tables using memory attributes described in
> UEFI memory map.
>
> So, as a first step, arm_enter_runtime_services() will be modified
> so that UEFI memory map will be always accessible.
>
> See a relevant commit:
> arm64: acpi: fix alignment fault in accessing ACPI tables

For what its worth:
Acked-by: James Morse <james.morse@xxxxxxx>


Thanks,

James