forked from Minki/linux
2959c95d51
The firmware for Quark X102x prepends a security header to the capsule which is needed to support the mandatory secure boot on this processor. The header can be detected by checking for the "_CSH" signature and - to avoid any GUID conflict - validating its size field to contain the expected value. Then we need to look for the EFI header right after the security header and pass the real header to __efi_capsule_setup_info. To be minimal invasive and maximal safe, the quirk version of efi_capsule_setup_info() is only effective on Quark processors. Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20170602135207.21708-11-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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