diff options
Diffstat (limited to 'arch/powerpc/kernel/cpu_setup_power4.S')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_power4.S | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_power4.S index 271418308d5..1fc86326100 100644 --- a/arch/powerpc/kernel/cpu_setup_power4.S +++ b/arch/powerpc/kernel/cpu_setup_power4.S @@ -125,7 +125,12 @@ _GLOBAL(__save_cpu_setup) cmpwi r0,0x44 bne 2f -1: /* Save HID0,1,4 and 5 */ +1: /* skip if not running in HV mode */ + mfmsr r0 + rldicl. r0,r0,4,63 + beq 2f + + /* Save HID0,1,4 and 5 */ mfspr r3,SPRN_HID0 std r3,CS_HID0(r5) mfspr r3,SPRN_HID1 @@ -159,7 +164,12 @@ _GLOBAL(__restore_cpu_setup) cmpwi r0,0x44 bnelr -1: /* Before accessing memory, we make sure rm_ci is clear */ +1: /* skip if not running in HV mode */ + mfmsr r0 + rldicl. r0,r0,4,63 + beqlr + + /* Before accessing memory, we make sure rm_ci is clear */ li r0,0 mfspr r3,SPRN_HID4 rldimi r3,r0,40,23 /* clear bit 23 (rm_ci) */ |