Hans de Goede 52e1cf2d19 efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode ... Commit: 79832f0b5f ("efi/libstub/tpm: Initialize pointer variables to zero for mixed mode") fixes a problem with the tpm code on mixed mode (64-bit kernel on 32-bit UEFI), where 64-bit pointer variables are not fully initialized by the 32-bit EFI code. A similar problem applies to the efi_physical_addr_t variables which are written by the ->get_event_log() EFI call. Even though efi_physical_addr_t is 64-bit everywhere, it seems that some 32-bit UEFI implementations only fill in the lower 32 bits when passed a pointer to an efi_physical_addr_t to fill. This commit initializes these to 0 to, to ensure the upper 32 bits are 0 in mixed mode. This fixes recent kernels sometimes hanging during early boot on mixed mode UEFI systems. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: <stable@vger.kernel.org> # v4.16+ 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/20180622064222.11633-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2018-06-22 10:58:27 +02:00
..
arm32-stub.c	efi/libstub/arm/arm64: Disable debug prints on 'quiet' cmdline arg	2017-04-05 12:27:28 +02:00
arm64-stub.c	efi/libstub/arm64: Handle randomized TEXT_OFFSET	2018-05-19 08:07:56 +02:00
arm-stub.c	Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm	2017-11-04 14:26:30 -07:00
efi-stub-helper.c	efi: Introduce efi_early_memdesc_ptr to get pointer to memmap descriptor	2017-08-17 10:50:57 +02:00
efistub.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fdt.c	arm64 updates for 4.12:	2017-05-05 12:11:37 -07:00
gop.c	efi/libstub: Skip GOP with PIXEL_BLT_ONLY format	2017-04-05 09:20:18 +02:00
Makefile	efi: Use string literals for efi_char16_t variable initializers	2018-03-12 10:05:02 +01:00
random.c	efi/random: Increase size of firmware supplied randomness	2017-08-26 09:20:33 +02:00
secureboot.c	x86/xen/efi: Initialize UEFI secure boot state during dom0 boot	2018-05-14 08:57:46 +02:00
string.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tpm.c	efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode	2018-06-22 10:58:27 +02:00