diff options
| -rw-r--r-- | arch/powerpc/kernel/tm.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index 183e8d75936f..7716374786bd 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -179,6 +179,13 @@ _GLOBAL(tm_reclaim) std r11, GPR11(r1) /* Temporary stash */ /* + * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is + * clobbered by an exception once we turn on MSR_RI below. + */ + ld r11, PACATMSCRATCH(r13) + std r11, GPR1(r1) + + /* * Store r13 away so we can free up the scratch SPR for the SLB fault * handler (needed once we start accessing the thread_struct). */ @@ -214,7 +221,7 @@ _GLOBAL(tm_reclaim) SAVE_GPR(8, r7) /* user r8 */ SAVE_GPR(9, r7) /* user r9 */ SAVE_GPR(10, r7) /* user r10 */ - ld r3, PACATMSCRATCH(r13) /* user r1 */ + ld r3, GPR1(r1) /* user r1 */ ld r4, GPR7(r1) /* user r7 */ ld r5, GPR11(r1) /* user r11 */ ld r6, GPR12(r1) /* user r12 */ |