diff options
| author | Dengcheng Zhu <dzhu@wavecomp.com> | 2018-09-11 14:49:21 -0700 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-09-22 10:31:50 -0700 |
| commit | 62cac480f33f8f9413d609cb1601b0ee521a86b8 (patch) | |
| tree | 92d3e1e0e580cbc175cd27b77b0ddf7c931ac338 /arch/mips/kernel/crash.c | |
| parent | dc57aaf95a516f70e2d527d8287a0332c481a226 (diff) | |
| download | linux-62cac480f33f8f9413d609cb1601b0ee521a86b8.tar.bz2 | |
MIPS: kexec: Make a framework for both jumping and halting on nonboot CPUs
The existing implementation lets machine_kexec() CPU jump to reboot code
buffer, whereas other CPUs to relocated_kexec_smp_wait. The natural way to
bring up an SMP new kernel would be to let CPU0 do it while others being
halted. For those failing to do so, fall back to the jumping method.
Signed-off-by: Dengcheng Zhu <dzhu@wavecomp.com>
[paul.burton@mips.com: Guard kexec_nonboot_cpu_jump with CONFIG_SMP]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20570/
Cc: pburton@wavecomp.com
Cc: ralf@linux-mips.org
Cc: linux-mips@linux-mips.org
Cc: rachel.mozes@intel.com
Diffstat (limited to 'arch/mips/kernel/crash.c')
| -rw-r--r-- | arch/mips/kernel/crash.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c index 4c07a43a3242..2c7288041a99 100644 --- a/arch/mips/kernel/crash.c +++ b/arch/mips/kernel/crash.c @@ -46,7 +46,9 @@ static void crash_shutdown_secondary(void *passed_regs) while (!atomic_read(&kexec_ready_to_reboot)) cpu_relax(); - relocated_kexec_smp_wait(NULL); + + kexec_reboot(); + /* NOTREACHED */ } |