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-rw-r--r--arch/powerpc/kernel/entry_64.S17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 36878b6ee8b8..371c05fe250a 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -1083,6 +1083,17 @@ __enter_rtas:
rtas_return_loc:
FIXUP_ENDIAN
+ /*
+ * Clear RI and set SF before anything.
+ */
+ mfmsr r6
+ li r0,MSR_RI
+ andc r6,r6,r0
+ sldi r0,r0,(MSR_SF_LG - MSR_RI_LG)
+ or r6,r6,r0
+ sync
+ mtmsrd r6
+
/* relocation is off at this point */
GET_PACA(r4)
clrldi r4,r4,2 /* convert to realmode address */
@@ -1091,12 +1102,6 @@ rtas_return_loc:
0: mflr r3
ld r3,(1f-0b)(r3) /* get &rtas_restore_regs */
- mfmsr r6
- li r0,MSR_RI
- andc r6,r6,r0
- sync
- mtmsrd r6
-
ld r1,PACAR1(r4) /* Restore our SP */
ld r4,PACASAVEDMSR(r4) /* Restore our MSR */