diff options
| author | Vijay Kumar <vijay.ac.kumar@oracle.com> | 2017-02-01 11:34:38 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-23 08:27:24 -0800 |
| commit | 7dd4fcf5b70694dc961eb6b954673e4fc9730dbd (patch) | |
| tree | 4209465c2da178199e233f2f4600a36458b57047 /arch/sparc/kernel | |
| parent | cffb3e76818fee4763a2ce5f2b1eca2d7885e2cf (diff) | |
sparc64: Migrate hvcons irq to panicked cpu
On panic, all other CPUs are stopped except the one which had
hit panic. To keep console alive, we need to migrate hvcons irq
to panicked CPU.
Signed-off-by: Vijay Kumar <vijay.ac.kumar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/smp_64.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 712bf1b7f630..90a02cb64e20 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1452,8 +1452,12 @@ void smp_send_stop(void) int cpu; if (tlb_type == hypervisor) { + int this_cpu = smp_processor_id(); +#ifdef CONFIG_SERIAL_SUNHV + sunhv_migrate_hvcons_irq(this_cpu); +#endif for_each_online_cpu(cpu) { - if (cpu == smp_processor_id()) + if (cpu == this_cpu) continue; set_cpu_online(cpu, false); |