Matthew Garrett 04178b1709 x86/efi: Clarify that reset attack mitigation needs appropriate userspace ... commit a5c03c31af upstream. Some distributions have turned on the reset attack mitigation feature, which is designed to force the platform to clear the contents of RAM if the machine is shut down uncleanly. However, in order for the platform to be able to determine whether the shutdown was clean or not, userspace has to be configured to clear the MemoryOverwriteRequest flag on shutdown - otherwise the firmware will end up clearing RAM on every reboot, which is unnecessarily time consuming. Add some additional clarity to the kconfig text to reduce the risk of systems being configured this way. Signed-off-by: Matthew Garrett <mjg59@google.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> 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 Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-03 17:39:25 +01:00
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libstub	Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm	2017-11-04 14:26:30 -07:00
test	License cleanup: add SPDX license identifiers to some files	2017-11-02 10:04:46 -07:00
Kconfig	x86/efi: Clarify that reset attack mitigation needs appropriate userspace	2018-02-03 17:39:25 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
apple-properties.c	treewide: Consolidate Apple DMI checks	2017-08-03 23:26:22 +02:00
arm-init.c	efi/arm/arm64: Add missing assignment of efi.config_table	2017-08-21 09:43:49 +02:00
arm-runtime.c	…
capsule-loader.c	efi/capsule-loader: Reinstate virtual capsule mapping	2018-01-10 09:31:18 +01:00
capsule.c	…
cper.c	Just a single conversion to the new UUID API for this merge window.	2017-09-12 13:27:21 -07:00
dev-path-parser.c	…
efi-bgrt.c	efi/bgrt: Use efi_mem_type()	2017-08-26 09:20:33 +02:00
efi-pstore.c	…
efi.c	efi: Move some sysfs files to be read-only by root	2017-12-14 09:52:52 +01:00
efibc.c	…
efivars.c	…
esrt.c	efi/esrt: Use memunmap() instead of kfree() to free the remapping	2017-12-14 09:52:52 +01:00
fake_mem.c	…
memattr.c	…
memmap.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
reboot.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
runtime-map.c	efi: Move some sysfs files to be read-only by root	2017-12-14 09:52:52 +01:00
runtime-wrappers.c	…
vars.c	…