Re: [PATCH 0/2] Allow using BGRT table under Xen dom0
From: Ard Biesheuvel
Date: Mon Mar 09 2026 - 08:56:50 EST
On Mon, 9 Mar 2026, at 13:17, Marek Marczykowski-Górecki wrote:
> For a long time Xen was invalidating BGRT table as it was reclaiming
> BootServicesData memory (where boot graphics is located). This is now changing,
> and the boot graphics is preserved. This series has necessary changes to
> actually make Linux use the preserved graphics.
>
> This is a companion series to Xen side at
> https://lore.kernel.org/xen-devel/20260305191810.31033-1-soumyajyotisarkar23@xxxxxxxxx/
>
> CC: Soumyajyotii Ssarkar <soumyajyotisarkar23@xxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Ard Biesheuvel <ardb@xxxxxxxxxx> (maintainer:EXTENSIBLE FIRMWARE
> INTERFACE (EFI))
> Cc: Ilias Apalodimas <ilias.apalodimas@xxxxxxxxxx> (reviewer:EXTENSIBLE
> FIRMWARE INTERFACE (EFI))
> Cc: linux-efi@xxxxxxxxxxxxxxx (open list:EXTENSIBLE FIRMWARE INTERFACE
> (EFI))
>
> Marek Marczykowski-Górecki (2):
> efi: make efi_mem_type() and efi_mem_attributes() work on Xen PV
> efi: Enable BGRT loading under Xen
>
> drivers/firmware/efi/efi-bgrt.c | 7 +++++--
> drivers/firmware/efi/efi.c | 27 +++++++++------------------
> 2 files changed, 14 insertions(+), 20 deletions(-)
>
Looks good to me - if nobody else has any concerns, I'll queue this up for v7.1