diff options
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64s.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 118 |
1 files changed, 73 insertions, 45 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 40e4a17..9f905e4 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -126,7 +126,7 @@ BEGIN_FTR_SECTION bgt cr1,. GET_PACA(r13) -#ifdef CONFIG_KVM_BOOK3S_64_HV +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE li r0,KVM_HWTHREAD_IN_KERNEL stb r0,HSTATE_HWTHREAD_STATE(r13) /* Order setting hwthread_state vs. testing hwthread_req */ @@ -293,27 +293,31 @@ system_call_pSeries: * out of line to handle them */ . = 0xe00 -hv_exception_trampoline: +hv_data_storage_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b h_data_storage_hv . = 0xe20 +hv_instr_storage_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b h_instr_storage_hv . = 0xe40 +emulation_assist_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b emulation_assist_hv . = 0xe60 +hv_exception_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b hmi_exception_hv . = 0xe80 +hv_doorbell_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b h_doorbell_hv @@ -323,28 +327,35 @@ hv_exception_trampoline: * prolog code of the PerformanceMonitor one. A little * trickery is thus necessary */ -performance_monitor_pSeries_1: . = 0xf00 +performance_monitor_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b performance_monitor_pSeries -altivec_unavailable_pSeries_1: . = 0xf20 +altivec_unavailable_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b altivec_unavailable_pSeries -vsx_unavailable_pSeries_1: . = 0xf40 +vsx_unavailable_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b vsx_unavailable_pSeries . = 0xf60 +facility_unavailable_trampoline: + SET_SCRATCH0(r13) + EXCEPTION_PROLOG_0(PACA_EXGEN) + b facility_unavailable_pSeries + + . = 0xf80 +hv_facility_unavailable_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) - b tm_unavailable_pSeries + b facility_unavailable_hv #ifdef CONFIG_CBE_RAS STD_EXCEPTION_HV(0x1200, 0x1202, cbe_system_error) @@ -360,11 +371,7 @@ denorm_exception_hv: HMT_MEDIUM_PPR_DISCARD mtspr SPRN_SPRG_HSCRATCH0,r13 EXCEPTION_PROLOG_0(PACA_EXGEN) - std r11,PACA_EXGEN+EX_R11(r13) - std r12,PACA_EXGEN+EX_R12(r13) - mfspr r9,SPRN_SPRG_HSCRATCH0 - std r9,PACA_EXGEN+EX_R13(r13) - mfcr r9 + EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0x1500) #ifdef CONFIG_PPC_DENORMALISATION mfspr r10,SPRN_HSRR1 @@ -374,6 +381,7 @@ denorm_exception_hv: bne+ denorm_assist #endif + KVMTEST(0x1500) EXCEPTION_PROLOG_PSERIES_1(denorm_common, EXC_HV) KVM_HANDLER_SKIP(PACA_EXGEN, EXC_STD, 0x1500) @@ -417,7 +425,7 @@ data_access_check_stab: mfspr r9,SPRN_DSISR srdi r10,r10,60 rlwimi r10,r9,16,0x20 -#ifdef CONFIG_KVM_BOOK3S_PR +#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE lbz r9,HSTATE_IN_GUEST(r13) rlwimi r10,r9,8,0x300 #endif @@ -494,6 +502,10 @@ denorm_done: mtcrf 0x80,r9 ld r9,PACA_EXGEN+EX_R9(r13) RESTORE_PPR_PACA(PACA_EXGEN, r10) +BEGIN_FTR_SECTION + ld r10,PACA_EXGEN+EX_CFAR(r13) + mtspr SPRN_CFAR,r10 +END_FTR_SECTION_IFSET(CPU_FTR_CFAR) ld r10,PACA_EXGEN+EX_R10(r13) ld r11,PACA_EXGEN+EX_R11(r13) ld r12,PACA_EXGEN+EX_R12(r13) @@ -522,8 +534,10 @@ denorm_done: KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf20) STD_EXCEPTION_PSERIES_OOL(0xf40, vsx_unavailable) KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf40) - STD_EXCEPTION_PSERIES_OOL(0xf60, tm_unavailable) + STD_EXCEPTION_PSERIES_OOL(0xf60, facility_unavailable) KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf60) + STD_EXCEPTION_HV_OOL(0xf82, facility_unavailable) + KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xf82) /* * An interrupt came in while soft-disabled. We set paca->irq_happened, then: @@ -636,6 +650,32 @@ slb_miss_user_pseries: b . /* prevent spec. execution */ #endif /* __DISABLED__ */ +#ifdef CONFIG_KVM_BOOK3S_64_HANDLER +kvmppc_skip_interrupt: + /* + * Here all GPRs are unchanged from when the interrupt happened + * except for r13, which is saved in SPRG_SCRATCH0. + */ + mfspr r13, SPRN_SRR0 + addi r13, r13, 4 + mtspr SPRN_SRR0, r13 + GET_SCRATCH0(r13) + rfid + b . + +kvmppc_skip_Hinterrupt: + /* + * Here all GPRs are unchanged from when the interrupt happened + * except for r13, which is saved in SPRG_SCRATCH0. + */ + mfspr r13, SPRN_HSRR0 + addi r13, r13, 4 + mtspr SPRN_HSRR0, r13 + GET_SCRATCH0(r13) + hrfid + b . +#endif + /* * Code from here down to __end_handlers is invoked from the * exception prologs above. Because the prologs assemble the @@ -793,53 +833,55 @@ system_call_relon_pSeries: STD_RELON_EXCEPTION_PSERIES(0x4d00, 0xd00, single_step) . = 0x4e00 - SET_SCRATCH0(r13) - EXCEPTION_PROLOG_0(PACA_EXGEN) - b h_data_storage_relon_hv + b . /* Can't happen, see v2.07 Book III-S section 6.5 */ . = 0x4e20 - SET_SCRATCH0(r13) - EXCEPTION_PROLOG_0(PACA_EXGEN) - b h_instr_storage_relon_hv + b . /* Can't happen, see v2.07 Book III-S section 6.5 */ . = 0x4e40 +emulation_assist_relon_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b emulation_assist_relon_hv . = 0x4e60 - SET_SCRATCH0(r13) - EXCEPTION_PROLOG_0(PACA_EXGEN) - b hmi_exception_relon_hv + b . /* Can't happen, see v2.07 Book III-S section 6.5 */ . = 0x4e80 +h_doorbell_relon_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b h_doorbell_relon_hv -performance_monitor_relon_pSeries_1: . = 0x4f00 +performance_monitor_relon_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b performance_monitor_relon_pSeries -altivec_unavailable_relon_pSeries_1: . = 0x4f20 +altivec_unavailable_relon_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b altivec_unavailable_relon_pSeries -vsx_unavailable_relon_pSeries_1: . = 0x4f40 +vsx_unavailable_relon_pseries_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b vsx_unavailable_relon_pSeries -tm_unavailable_relon_pSeries_1: . = 0x4f60 +facility_unavailable_relon_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) - b tm_unavailable_relon_pSeries + b facility_unavailable_relon_pSeries + + . = 0x4f80 +hv_facility_unavailable_relon_trampoline: + SET_SCRATCH0(r13) + EXCEPTION_PROLOG_0(PACA_EXGEN) + b hv_facility_unavailable_relon_hv STD_RELON_EXCEPTION_PSERIES(0x5300, 0x1300, instruction_breakpoint) #ifdef CONFIG_PPC_DENORMALISATION @@ -1165,36 +1207,22 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX) bl .vsx_unavailable_exception b .ret_from_except - .align 7 - .globl tm_unavailable_common -tm_unavailable_common: - EXCEPTION_PROLOG_COMMON(0xf60, PACA_EXGEN) - bl .save_nvgprs - DISABLE_INTS - addi r3,r1,STACK_FRAME_OVERHEAD - bl .tm_unavailable_exception - b .ret_from_except + STD_EXCEPTION_COMMON(0xf60, facility_unavailable, .facility_unavailable_exception) + STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, .facility_unavailable_exception) .align 7 .globl __end_handlers __end_handlers: /* Equivalents to the above handlers for relocation-on interrupt vectors */ - STD_RELON_EXCEPTION_HV_OOL(0xe00, h_data_storage) - KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe00) - STD_RELON_EXCEPTION_HV_OOL(0xe20, h_instr_storage) - KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe20) STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist) - KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe40) - STD_RELON_EXCEPTION_HV_OOL(0xe60, hmi_exception) - KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe60) MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell) - KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe80) STD_RELON_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) STD_RELON_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable) STD_RELON_EXCEPTION_PSERIES_OOL(0xf40, vsx_unavailable) - STD_RELON_EXCEPTION_PSERIES_OOL(0xf60, tm_unavailable) + STD_RELON_EXCEPTION_PSERIES_OOL(0xf60, facility_unavailable) + STD_RELON_EXCEPTION_HV_OOL(0xf80, hv_facility_unavailable) #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) /* |