diff options
Diffstat (limited to 'arch/powerpc/kernel/head_32.S')
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 90ef355e958b..0493fcac6409 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -272,14 +272,21 @@ __secondary_hold_acknowledge: */ . = 0x200 DO_KVM 0x200 +MachineCheck: EXCEPTION_PROLOG_0 +#ifdef CONFIG_VMAP_STACK + li r11, MSR_KERNEL & ~(MSR_IR | MSR_RI) /* can take DTLB miss */ + mtmsr r11 + isync +#endif #ifdef CONFIG_PPC_CHRP mfspr r11, SPRN_SPRG_THREAD + tovirt_vmstack r11, r11 lwz r11, RTAS_SP(r11) cmpwi cr1, r11, 0 bne cr1, 7f #endif /* CONFIG_PPC_CHRP */ - EXCEPTION_PROLOG_1 + EXCEPTION_PROLOG_1 for_rtas=1 7: EXCEPTION_PROLOG_2 addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_PPC_CHRP @@ -294,7 +301,7 @@ __secondary_hold_acknowledge: . = 0x300 DO_KVM 0x300 DataAccess: - EXCEPTION_PROLOG + EXCEPTION_PROLOG handle_dar_dsisr=1 get_and_save_dar_dsisr_on_stack r4, r5, r11 BEGIN_MMU_FTR_SECTION #ifdef CONFIG_PPC_KUAP @@ -334,7 +341,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE) . = 0x600 DO_KVM 0x600 Alignment: - EXCEPTION_PROLOG + EXCEPTION_PROLOG handle_dar_dsisr=1 save_dar_dsisr_on_stack r4, r5, r11 addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_STD(0x600, alignment_exception) @@ -645,6 +652,9 @@ handle_page_fault_tramp_1: handle_page_fault_tramp_2: EXC_XFER_LITE(0x300, handle_page_fault) +stack_overflow: + vmap_stack_overflow_exception + AltiVecUnavailable: EXCEPTION_PROLOG #ifdef CONFIG_ALTIVEC |