diff options
| author | Manish Ahuja <ahuja@austin.ibm.com> | 2008-03-22 00:38:59 (GMT) |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-03-25 21:44:07 (GMT) |
| commit | 654f596da4a83a8d2734fba26c2a1257533e6d75 (patch) | |
| tree | a937646dfd6e225e6b3f25d6adbde921200f21d9 /arch/powerpc/kernel/prom.c | |
| parent | 242f271c056f49b64b94c06b38fe9e8d3bf703bc (diff) | |
| download | linux-654f596da4a83a8d2734fba26c2a1257533e6d75.tar.xz | |
[POWERPC] pseries: phyp dump: Disable phyp-dump through boot-var
This adds a kernel command line option "phyp_dump", which takes a 0/1
value for disabling/ enabling phyp_dump at boot time. Kdump can use
this on cmdline (phyp_dump=0) to disable phyp-dump during boot when
enabling itself. This will ensure only one dumping mechanism is active
at any given time.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index e6c022e..9330920 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -1060,6 +1060,11 @@ static void __init phyp_dump_reserve_mem(void) return; } + if (!phyp_dump_info->phyp_dump_at_boot) { + printk(KERN_INFO "Phyp-dump disabled at boot time\n"); + return; + } + if (phyp_dump_info->phyp_dump_is_active) { /* Reserve *everything* above RMR.Area freed by userland tools*/ base = PHYP_DUMP_RMR_END; |