summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/crash.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/crash.c')
-rw-r--r--arch/x86/kernel/crash.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 9616cf76940c..650830e39e3a 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -133,15 +133,31 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
disable_local_APIC();
}
-static void kdump_nmi_shootdown_cpus(void)
+void kdump_nmi_shootdown_cpus(void)
{
nmi_shootdown_cpus(kdump_nmi_callback);
disable_local_APIC();
}
+/* Override the weak function in kernel/panic.c */
+void crash_smp_send_stop(void)
+{
+ static int cpus_stopped;
+
+ if (cpus_stopped)
+ return;
+
+ if (smp_ops.crash_stop_other_cpus)
+ smp_ops.crash_stop_other_cpus();
+ else
+ smp_send_stop();
+
+ cpus_stopped = 1;
+}
+
#else
-static void kdump_nmi_shootdown_cpus(void)
+void crash_smp_send_stop(void)
{
/* There are no cpus to shootdown */
}
@@ -160,7 +176,7 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
/* The kernel is broken so disable interrupts */
local_irq_disable();
- kdump_nmi_shootdown_cpus();
+ crash_smp_send_stop();
/*
* VMCLEAR VMCSs loaded on this cpu if needed.