diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2019-07-22 20:47:20 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-25 16:11:59 +0200 |
| commit | bd82dba2fa6ae91061e5d31399d61fe65028f714 (patch) | |
| tree | 6f055fbd723a8118ac965047fdf3ae1378881c7d | |
| parent | 3994ff90acc3b115734fe532720c37a499c502ce (diff) | |
x86/apic: Add NMI_VECTOR wait to IPI shorthand
To support NMI shorthand broadcasts add the safe wait for ICR idle for NMI
vector delivery.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190722105220.185838026@linutronix.de
| -rw-r--r-- | arch/x86/kernel/apic/ipi.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c index 50c9dcc6f60e..7236fefde396 100644 --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -30,7 +30,10 @@ void __default_send_IPI_shortcut(unsigned int shortcut, int vector) /* * Wait for idle. */ - __xapic_wait_icr_idle(); + if (unlikely(vector == NMI_VECTOR)) + safe_apic_wait_icr_idle(); + else + __xapic_wait_icr_idle(); /* * No need to touch the target chip field. Also the destination |