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[0/3] arm64: efi: Use SMBIOS type 4 record for Altra quirk

Message ID 20230322142621.3685058-1-ardb@kernel.org
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Series arm64: efi: Use SMBIOS type 4 record for Altra quirk | expand

Message

Ard Biesheuvel March 22, 2023, 2:26 p.m. UTC 
We currently use the SMBIOS type 1 'family' string to identify Ampere
machines that require a EFI workaround, but this is not broad enough, as
OEMs often put arbitrary names in that field (such as 'Server')

So instead, let's use the SMBIOS type 4 records that describe the actual
CPU rather than the system.

Cc: Darren Hart <darren@os.amperecomputing.com>
Cc: Andrea Righi <andrea.righi@canonical.com>

Ard Biesheuvel (3):
  efi/libstub: smbios: Use length member instead of record struct size
  arm64: efi: Use SMBIOS processor version to key off Ampere quirk
  efi/libstub: smbios: Drop unused 'recsize' parameter

 drivers/firmware/efi/libstub/arm64.c   | 39 ++++++++++++++----
 drivers/firmware/efi/libstub/efistub.h | 42 ++++++++++++++++++--
 drivers/firmware/efi/libstub/smbios.c  | 15 +++++--
 3 files changed, 81 insertions(+), 15 deletions(-)