diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index d8f1d70c675f..cbed1e42d85c 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1781,6 +1781,7 @@ TRAMP_REAL_BEGIN(hmi_exception_early) addi r3,r1,STACK_FRAME_OVERHEAD BRANCH_LINK_TO_FAR(DOTSYM(hmi_exception_realmode)) /* Function call ABI */ cmpdi cr0,r3,0 + bne 1f /* Windup the stack. */ /* Move original HSRR0 and HSRR1 into the respective regs */ @@ -1799,13 +1800,28 @@ TRAMP_REAL_BEGIN(hmi_exception_early) REST_GPR(10, r1) ld r11,_CCR(r1) REST_2GPRS(12, r1) - bne 1f mtcr r11 REST_GPR(11, r1) ld r1,GPR1(r1) HRFI_TO_USER_OR_KERNEL -1: mtcr r11 +1: + ld r9,_MSR(r1) + mtspr SPRN_HSRR1,r9 + ld r9,_NIP(r1) + mtspr SPRN_HSRR0,r9 + ld r9,_CTR(r1) + mtctr r9 + ld r9,_XER(r1) + mtxer r9 + ld r9,_LINK(r1) + mtlr r9 + REST_GPR(0, r1) + REST_8GPRS(2, r1) + REST_GPR(10, r1) + ld r11,_CCR(r1) + REST_2GPRS(12, r1) + mtcr r11 REST_GPR(11, r1) ld r1,GPR1(r1) @@ -1813,8 +1829,6 @@ TRAMP_REAL_BEGIN(hmi_exception_early) * Go to virtual mode and pull the HMI event information from * firmware. */ - .globl hmi_exception_after_realmode -hmi_exception_after_realmode: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0 PACA_EXGEN b tramp_real_hmi_exception |