Commit 1c7d6707 authored by Jack Steiner's avatar Jack Steiner Committed by Tony Luck

[IA64] Save register stack contents on cpu start

The SN PROM uses the register stack in the slave loop. The contents
must be preserved for the OS to return to the slave loop via offlining
a cpu or for kexec. A 'flushrs" is needed to force the stack to be written
to memory prior to changing bspstore.
Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 26362554
...@@ -197,6 +197,11 @@ start_ap: ...@@ -197,6 +197,11 @@ start_ap:
;; ;;
srlz.i srlz.i
;; ;;
{
flushrs // must be first insn in group
srlz.i
}
;;
/* /*
* Save the region registers, predicate before they get clobbered * Save the region registers, predicate before they get clobbered
*/ */
......
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