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Jian-Hong Pan 4074bc379b x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T [ Upstream commit `0082517fa4` ] Upon reboot, the Acer TravelMate X514-51T laptop appears to complete the shutdown process, but then it hangs in BIOS POST with a black screen. The problem is intermittent - at some points it has appeared related to Secure Boot settings or different kernel builds, but ultimately we have not been able to identify the exact conditions that trigger the issue to come and go. Besides, the EFI mode cannot be disabled in the BIOS of this model. However, after extensive testing, we observe that using the EFI reboot method reliably avoids the issue in all cases. So add a boot time quirk to use EFI reboot on such systems. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=203119 Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com> Signed-off-by: Daniel Drake <drake@endlessm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> 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 Cc: linux@endlessm.com Link: http://lkml.kernel.org/r/20190412080152.3718-1-jian-hong@endlessm.com [ Fix !CONFIG_EFI build failure, clarify the code and the changelog a bit. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-05-16 19:41:22 +02:00
arch	x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T	2019-05-16 19:41:22 +02:00
block	bfq: update internal depth state when queue depth changes	2019-05-16 19:41:17 +02:00
certs	export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()	2018-08-22 23:21:44 +09:00
crypto	crypto: x86/poly1305 - fix overflow during partial reduction	2019-04-27 09:36:37 +02:00
Documentation	x86/speculation/mds: Fix documentation typo	2019-05-14 19:18:00 +02:00
drivers	s390/pkey: add one more argument space for debug feature entry	2019-05-16 19:41:22 +02:00
firmware
fs	afs: Unlock pages for __pagevec_release()	2019-05-16 19:41:21 +02:00
include	x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T	2019-05-16 19:41:22 +02:00
init	Revert "mm: use early_pfn_to_nid in page_ext_init"	2019-03-23 20:09:46 +01:00
ipc	ipc/shm.c: use ERR_CAST() for shm_lock() error return	2018-10-05 16:32:04 -07:00
kernel	cpu/speculation: Add 'mitigations=' cmdline option	2019-05-14 19:17:59 +02:00
lib	ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings	2019-05-10 17:54:04 +02:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	slab: fix a crash by reading /proc/slab_allocators	2019-05-10 17:54:08 +02:00
net	nl80211: Add NL80211_FLAG_CLEAR_SKB flag for other NL commands	2019-05-16 19:41:20 +02:00
samples	samples: mei: use /dev/mei0 instead of /dev/mei	2019-02-15 08:10:11 +01:00
scripts	fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock	2019-05-08 07:21:51 +02:00
security	selinux: never allow relabeling on context mounts	2019-05-08 07:21:54 +02:00
sound	x86/cpu: Sanitize FAM6_ATOM naming	2019-05-14 19:17:53 +02:00
tools	selftests: fib_tests: Fix 'Command line is not complete' errors	2019-05-16 19:41:21 +02:00
usr	initramfs: move gen_initramfs_list.sh from scripts/ to usr/	2018-08-22 23:21:44 +09:00
virt	KVM: arm/arm64: vgic-its: Take the srcu lock when parsing the memslots	2019-05-04 09:20:14 +02:00
.clang-format	clang-format: Set IndentWrappedFunctionNames false	2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore	Kbuild updates for v4.17 (2nd)	2018-04-15 17:21:30 -07:00
.mailmap	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
COPYING
CREDITS	9p: remove Ron Minnich from MAINTAINERS	2018-08-17 16:20:26 -07:00
Kbuild
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	platform/x86: Add Intel AtomISP2 dummy / power-management driver	2019-04-20 09:16:02 +02:00
Makefile	Linux 4.19.43	2019-05-14 19:18:00 +02:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.