efi/capsule-loader: Use page addresses rather than struct page pointers
authorArd Biesheuvel <ard.biesheuvel@linaro.org>
Fri, 2 Jun 2017 13:52:03 +0000 (13:52 +0000)
committerIngo Molnar <mingo@kernel.org>
Mon, 5 Jun 2017 15:50:41 +0000 (17:50 +0200)
commit2a457fb31df62c6b482f78e4f74aaed99271f44d
treeca361e87b2d0d587942b67279294dcb6e42aa48a
parent3fabd628d5ea24b02ddb1230ffca1df0f779f84e
efi/capsule-loader: Use page addresses rather than struct page pointers

To give some leeway to code that handles non-standard capsule headers,
let's keep an array of page addresses rather than struct page pointers.

This gives special implementations of efi_capsule_setup_info() the
opportunity to mangle the payload a bit before it is presented to the
firmware, without putting any knowledge of the nature of such quirks
into the generic code.

Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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/20170602135207.21708-10-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
drivers/firmware/efi/capsule-loader.c
drivers/firmware/efi/capsule.c
include/linux/efi.h