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-rw-r--r--arch/sparc/kernel/urtt_fill.S7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/sparc/kernel/urtt_fill.S b/arch/sparc/kernel/urtt_fill.S
index 44183aa59168..e4cee7be5cd0 100644
--- a/arch/sparc/kernel/urtt_fill.S
+++ b/arch/sparc/kernel/urtt_fill.S
@@ -50,7 +50,12 @@ user_rtt_fill_fixup_common:
SET_GL(0)
.previous
- wrpr %g0, RTRAP_PSTATE, %pstate
+661: wrpr %g0, RTRAP_PSTATE, %pstate
+ .section .sun_m7_1insn_patch, "ax"
+ .word 661b
+ /* Re-enable PSTATE.mcde to maintain ADI security */
+ wrpr %g0, RTRAP_PSTATE|PSTATE_MCDE, %pstate
+ .previous
mov %l1, %g6
ldx [%g6 + TI_TASK], %g4