diff options
| author | Tiantian Feng <fengtiantian@huawei.com> | 2017-04-19 18:18:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-04-20 10:06:57 +0200 |
| commit | fba4f472b33aa81ca1836f57d005455261e9126f (patch) | |
| tree | 935ae5a7615651dd9771c5fa46ad9042a6735f7c /arch/x86/boot/compressed/kaslr.c | |
| parent | d594aa0277e541bb997aef0bc0a55172d8138340 (diff) | |
x86/reboot: Turn off KVM when halting a CPU
A CPU in VMX root mode will ignore INIT signals and will fail to bring
up the APs after reboot. Therefore, on a panic we disable VMX on all
CPUs before rebooting or triggering kdump.
Do this when halting the machine as well, in case a firmware-level reboot
does not perform a cold reset for all processors. Without doing this,
rebooting the host may hang.
Signed-off-by: Tiantian Feng <fengtiantian@huawei.com>
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
[ Rewritten commit message. ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kvm@vger.kernel.org
Link: http://lkml.kernel.org/r/20170419161839.30550-1-pbonzini@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/boot/compressed/kaslr.c')
0 files changed, 0 insertions, 0 deletions