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
