diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0008-x86-reboot-Turn-off-KVM-when-halting-a-CPU.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0008-x86-reboot-Turn-off-KVM-when-halting-a-CPU.patch | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0008-x86-reboot-Turn-off-KVM-when-halting-a-CPU.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0008-x86-reboot-Turn-off-KVM-when-halting-a-CPU.patch deleted file mode 100644 index 1b5231fc..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0008-x86-reboot-Turn-off-KVM-when-halting-a-CPU.patch +++ /dev/null @@ -1,62 +0,0 @@ -From 7737fc421365d9f2fd328b19fdccf005092d4ec1 Mon Sep 17 00:00:00 2001 -From: Tiantian Feng <fengtiantian@huawei.com> -Date: Wed, 19 Apr 2017 18:18:39 +0200 -Subject: [PATCH 08/93] x86/reboot: Turn off KVM when halting a CPU - -[ Upstream commit fba4f472b33aa81ca1836f57d005455261e9126f ] - -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> -Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - arch/x86/kernel/smp.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c -index c00cb64..420f2dc 100644 ---- a/arch/x86/kernel/smp.c -+++ b/arch/x86/kernel/smp.c -@@ -33,6 +33,7 @@ - #include <asm/mce.h> - #include <asm/trace/irq_vectors.h> - #include <asm/kexec.h> -+#include <asm/virtext.h> - - /* - * Some notes on x86 processor bugs affecting SMP operation: -@@ -162,6 +163,7 @@ static int smp_stop_nmi_callback(unsigned int val, struct pt_regs *regs) - if (raw_smp_processor_id() == atomic_read(&stopping_cpu)) - return NMI_HANDLED; - -+ cpu_emergency_vmxoff(); - stop_this_cpu(NULL); - - return NMI_HANDLED; -@@ -174,6 +176,7 @@ static int smp_stop_nmi_callback(unsigned int val, struct pt_regs *regs) - asmlinkage __visible void smp_reboot_interrupt(void) - { - ipi_entering_ack_irq(); -+ cpu_emergency_vmxoff(); - stop_this_cpu(NULL); - irq_exit(); - } --- -2.7.4 - |