diff options
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64s.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 69 |
1 files changed, 51 insertions, 18 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 902ca3c6b4b6..9f905e40922e 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 @@ -323,32 +327,32 @@ 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 -facility_unavailable_trampoline: . = 0xf60 +facility_unavailable_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b facility_unavailable_pSeries -hv_facility_unavailable_trampoline: . = 0xf80 +hv_facility_unavailable_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b facility_unavailable_hv @@ -367,11 +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 @@ -381,6 +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) @@ -424,7 +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 @@ -501,6 +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) @@ -645,6 +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 @@ -808,6 +839,7 @@ system_call_relon_pSeries: 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 @@ -816,36 +848,37 @@ system_call_relon_pSeries: 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 -facility_unavailable_relon_trampoline: . = 0x4f60 +facility_unavailable_relon_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b facility_unavailable_relon_pSeries -hv_facility_unavailable_relon_trampoline: . = 0x4f80 +hv_facility_unavailable_relon_trampoline: SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXGEN) b hv_facility_unavailable_relon_hv |