Janakarajan Natarajan 88d879d29f Prevent timer value 0 for MWAITX ... Newer hardware has uncovered a bug in the software implementation of using MWAITX for the delay function. A value of 0 for the timer is meant to indicate that a timeout will not be used to exit MWAITX. On newer hardware this can result in MWAITX never returning, resulting in NMI soft lockup messages being printed. On older hardware, some of the other conditions under which MWAITX can exit masked this issue. The AMD APM does not currently document this and will be updated. Please refer to http://marc.info/?l=kvm&m=148950623231140 for information regarding NMI soft lockup messages on an AMD Ryzen 1800X. This has been root-caused as a 0 passed to MWAITX causing it to wait indefinitely. This change has the added benefit of avoiding the unnecessary setup of MONITORX/MWAITX when the delay value is zero. Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com> Link: http://lkml.kernel.org/r/1493156643-29366-1-git-send-email-Janakarajan.Natarajan@amd.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2017-04-30 13:35:11 +02:00
..
boot	x86/boot: Include missing header file	2017-03-31 10:43:42 +02:00
configs	x86/build/x86_64_defconfig: Enable CONFIG_R8169	2017-03-06 11:47:43 +01:00
crypto	crypto: sha512-mb - Protect sha512 mb ctx mgr access	2017-02-11 17:50:41 +08:00
entry	x86/vdso: Ensure vdso32_enabled gets set to valid values only	2017-04-10 18:31:41 +02:00
events	sched/clock, x86/perf: Fix "perf test tsc"	2017-03-23 07:31:49 +01:00
hyperv	x86/hyperv: Hide unused label	2017-03-01 10:51:40 +01:00
ia32	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
include	x86/vdso: Plug race between mapping and ELF header setup	2017-04-10 18:31:41 +02:00
kernel	x86/build: convert function graph '-Os' error to warning	2017-04-19 09:57:23 +02:00
kvm	KVM: x86: cleanup the page tracking SRCU instance	2017-03-28 14:08:02 +02:00
lguest	clocksource: Use a plain u64 instead of cycle_t	2016-12-25 11:04:12 +01:00
lib	Prevent timer value 0 for MWAITX	2017-04-30 13:35:11 +02:00
math-emu	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
mm	x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization	2017-03-24 09:04:27 +01:00
net	bpf: fix unlocking of jited image when module ronx not set	2017-02-21 13:30:14 -05:00
oprofile	x86/oprofile/nmi: Convert to hotplug state machine	2016-11-22 23:34:43 +01:00
pci	features and fixes for 4.11 rc1	2017-03-09 12:23:30 -08:00
platform	x86/platform/intel-mid: Add power button support for Merrifield	2017-03-13 22:08:28 +01:00
power	Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-12-18 13:59:10 -08:00
purgatory	kasan: do not sanitize kexec purgatory	2017-03-31 17:13:30 -07:00
ras	x86/ras/amd/inj: Change dependency	2017-01-24 09:14:55 +01:00
realmode	x86/build: Don't use $(LINUXINCLUDE) twice	2016-11-28 07:49:17 +01:00
tools	x86/tools: Fix gcc-7 warning in relocs.c	2016-12-19 11:50:24 +01:00
um	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
video
xen	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
.gitignore
Kbuild	Drivers: hv vmbus: Move Hypercall page setup out of common code	2017-01-19 11:42:07 +01:00
Kconfig	The usual collection of new drivers, non-critical fixes, and updates	2017-02-25 14:28:06 -08:00
Kconfig.cpu
Kconfig.debug	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
Makefile	x86/build: convert function graph '-Os' error to warning	2017-04-19 09:57:23 +02:00
Makefile_32.cpu	x86/build: Mostly disable '-maccumulate-outgoing-args'	2017-03-30 11:53:04 +02:00
Makefile.um