linux/drivers/firmware/efi
Austin Christ 6862e6ad95 efi/capsule: Allocate whole capsule into virtual memory
According to UEFI 2.6 section 7.5.3, the capsule should be in contiguous
virtual memory and firmware may consume the capsule immediately. To
correctly implement this functionality, the kernel driver needs to vmap
the entire capsule at the time it is made available to firmware.

The virtual allocation of the capsule update has been changed from kmap,
which was only allocating the first page of the update, to vmap, and
allocates the entire data payload.

Signed-off-by: Austin Christ <austinwc@codeaurora.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Cc: <stable@vger.kernel.org> # v4.7
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kweh Hock Leong <hock.leong.kweh@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1470912120-22831-3-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-08-11 13:55:36 +02:00
..
libstub arm64 updates for 4.7: 2016-05-16 17:17:24 -07:00
arm-init.c efi/arm: Fix the format of EFI debug messages 2016-06-03 09:57:36 +02:00
arm-runtime.c Xen: EFI: Parse DT parameters for Xen specific UEFI 2016-07-06 10:34:47 +01:00
capsule-loader.c efi/capsule: Allocate whole capsule into virtual memory 2016-08-11 13:55:36 +02:00
capsule.c efi/capsule: Allocate whole capsule into virtual memory 2016-08-11 13:55:36 +02:00
cper.c efi: Handle memory error structures produced based on old versions of standard 2015-07-15 13:30:38 +01:00
efi-pstore.c efi-pstore: implement efivars_pstore_exit() 2016-06-02 11:25:31 -07:00
efi.c xen: features and fixes for 4.8-rc0 2016-07-27 11:35:37 -07:00
efibc.c efibc: Report more information in the error messages 2016-06-27 13:06:54 +02:00
efivars.c efi: Merge boolean flag arguments 2016-05-07 07:06:13 +02:00
esrt.c efi/esrt: Don't preformat name 2015-12-14 15:24:03 +00:00
fake_mem.c efi: Remove global 'memmap' EFI memory map 2016-04-28 11:33:51 +02:00
Kconfig efi: Add misc char driver interface to update EFI firmware 2016-04-28 11:34:05 +02:00
Makefile efi: Add misc char driver interface to update EFI firmware 2016-04-28 11:34:05 +02:00
memattr.c efi: Implement generic support for the Memory Attributes table 2016-04-28 11:33:54 +02:00
reboot.c efi: Add 'capsule' update support 2016-04-28 11:34:03 +02:00
runtime-map.c efi: Fix error handling in add_sysfs_runtime_map_entry() 2015-05-05 16:20:13 +01:00
runtime-wrappers.c efi: Convert efi_call_virt() to efi_call_virt_pointer() 2016-06-27 13:06:56 +02:00
vars.c efi: Merge boolean flag arguments 2016-05-07 07:06:13 +02:00