[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>
diff --git a/include/asm-powerpc/phyp_dump.h b/include/asm-powerpc/phyp_dump.h
index b454de4..209a989 100644
--- a/include/asm-powerpc/phyp_dump.h
+++ b/include/asm-powerpc/phyp_dump.h
@@ -25,6 +25,7 @@
unsigned long init_reserve_start;
unsigned long init_reserve_size;
/* Check status during boot if dump supported, active & present*/
+ unsigned long phyp_dump_at_boot;
unsigned long phyp_dump_configured;
unsigned long phyp_dump_is_active;
/* store cpu & hpte size */
