Re: [PATCH v3 0/5] efi: Support ESRT under Xen

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On Thu, 19 Jan 2023 at 20:04, Demi Marie Obenour
<demi@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> This patch series fixes handling of EFI tables when running under Xen.
> These fixes allow the ESRT to be loaded when running paravirtualized in
> dom0, making the use of EFI capsule updates possible.
>
> Demi Marie Obenour (5):
>   efi: memmap: Disregard bogus entries instead of returning them
>   efi: xen: Implement memory descriptor lookup based on hypercall
>   efi: Apply allowlist to EFI configuration tables when running under
>     Xen
>   efi: Actually enable the ESRT under Xen
>   efi: Warn if trying to reserve memory under Xen
>

I have given these a spin on a system with a dodgy ESRT (the region in
question is not covered by the memory map at all), and things are
exactly as broken before, which is good.

I have queued these up in efi/next now, they should appear in -next tomorrow.


>  drivers/firmware/efi/efi.c  | 22 ++++++++++++-
>  drivers/firmware/efi/esrt.c | 15 +++------
>  drivers/xen/efi.c           | 61 +++++++++++++++++++++++++++++++++++++
>  include/linux/efi.h         |  3 ++
>  4 files changed, 90 insertions(+), 11 deletions(-)
>
> --
> Sincerely,
> Demi Marie Obenour (she/her/hers)
> Invisible Things Lab



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