On Thu, 19 Jan 2023 at 20:04, Demi Marie Obenour
<demi@invisiblethingslab.com> 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