diff options
| author |   Michael Neuling <mikey@neuling.org> | 2008-01-11 14:02:47 +1100 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2008-01-11 16:33:55 +1100 |
| commit | 473980a99316c0e788bca50996375a2815124ce1 (patch) | |
| tree | 5fb9d5de6ee75299b32de0e0b66f5a868864c38f /arch/powerpc/platforms/pseries/lpar.c | |
| parent | [POWERPC] efika: add phy-handle property for fec_mpc52xx (diff) | |
| download | linux-dev-473980a99316c0e788bca50996375a2815124ce1.tar.xz linux-dev-473980a99316c0e788bca50996375a2815124ce1.zip | |
[POWERPC] Fix CPU hotplug when using the SLB shadow buffer
Before we register the SLB shadow buffer, we need to invalidate the
entries in the buffer, otherwise we can end up stale entries from when
we previously offlined the CPU.
This does this invalidate as well as unregistering the buffer with
PHYP before we offline the cpu. Tested and fixes crashes seen on
970MP (thanks to tonyb) and POWER5.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 9a455d46379d..34317aa148a8 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -272,6 +272,7 @@ void vpa_init(int cpu) */ addr = __pa(&slb_shadow[cpu]); if (firmware_has_feature(FW_FEATURE_SPLPAR)) { + slb_shadow_clear_all(); ret = register_slb_shadow(hwcpu, addr); if (ret) printk(KERN_ERR |