Re: [PATCH v3 6/7] firmware/efi: Process CXL Component Events

[Ira Weiny]

Ira Weiny wrote:
> BIOS can configure memory devices as firmware first.  This will send CXL
> events to the firmware instead of the OS.  The firmware can then send
> these events to the OS via UEFI.
> 
> UEFI v2.10 section N.2.14 defines a Common Platform Error Record (CPER)
> format for CXL Component Events.  The format is mostly the same as the
> CXL Common Event Record Format.  The difference is the use of a GUID in
> the Section Type rather than a UUID as part of the event itself.
> 
> Add EFI support to detect CXL CPER records and call a registered
> notifier with the event.  Enforce that only one notifier call can be
> registered at any time.
> 
> Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
> Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>

V4 coming with 0day build fixes for the CONFIG_UEFI_CPER=n case.

Ira