diff options
| author | Bharat Bhushan <r65777@freescale.com> | 2012-06-20 07:56:54 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-07-11 17:39:36 +0200 |
| commit | 75c44bbb20807b5148eae19642a0fdb8db20c344 (patch) | |
| tree | 074de8da38e837aaa08ba045bf05a8a08a55b01a /arch | |
| parent | booke/bookehv: Add host crit-watchdog exception support (diff) | |
| download | linux-75c44bbb20807b5148eae19642a0fdb8db20c344.tar.xz linux-75c44bbb20807b5148eae19642a0fdb8db20c344.zip | |
booke: Added crit/mc exception handler for e500v2
Watchdog is taken at critical exception level. So this patch
is tested with host watchdog exception happening when guest
is running.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kvm/booke_interrupts.S | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S index 8feec2ff3928..09456c4719f3 100644 --- a/arch/powerpc/kvm/booke_interrupts.S +++ b/arch/powerpc/kvm/booke_interrupts.S @@ -53,16 +53,21 @@ (1<<BOOKE_INTERRUPT_PROGRAM) | \ (1<<BOOKE_INTERRUPT_DTLB_MISS)) -.macro KVM_HANDLER ivor_nr +.macro KVM_HANDLER ivor_nr scratch srr0 _GLOBAL(kvmppc_handler_\ivor_nr) /* Get pointer to vcpu and record exit number. */ - mtspr SPRN_SPRG_WSCRATCH0, r4 + mtspr \scratch , r4 mfspr r4, SPRN_SPRG_RVCPU + stw r3, VCPU_GPR(r3)(r4) stw r5, VCPU_GPR(r5)(r4) stw r6, VCPU_GPR(r6)(r4) + mfspr r3, \scratch mfctr r5 - lis r6, kvmppc_resume_host@h + stw r3, VCPU_GPR(r4)(r4) stw r5, VCPU_CTR(r4) + mfspr r3, \srr0 + lis r6, kvmppc_resume_host@h + stw r3, VCPU_PC(r4) li r5, \ivor_nr ori r6, r6, kvmppc_resume_host@l mtctr r6 @@ -70,37 +75,35 @@ _GLOBAL(kvmppc_handler_\ivor_nr) .endm _GLOBAL(kvmppc_handlers_start) -KVM_HANDLER BOOKE_INTERRUPT_CRITICAL -KVM_HANDLER BOOKE_INTERRUPT_MACHINE_CHECK -KVM_HANDLER BOOKE_INTERRUPT_DATA_STORAGE -KVM_HANDLER BOOKE_INTERRUPT_INST_STORAGE -KVM_HANDLER BOOKE_INTERRUPT_EXTERNAL -KVM_HANDLER BOOKE_INTERRUPT_ALIGNMENT -KVM_HANDLER BOOKE_INTERRUPT_PROGRAM -KVM_HANDLER BOOKE_INTERRUPT_FP_UNAVAIL -KVM_HANDLER BOOKE_INTERRUPT_SYSCALL -KVM_HANDLER BOOKE_INTERRUPT_AP_UNAVAIL -KVM_HANDLER BOOKE_INTERRUPT_DECREMENTER -KVM_HANDLER BOOKE_INTERRUPT_FIT -KVM_HANDLER BOOKE_INTERRUPT_WATCHDOG -KVM_HANDLER BOOKE_INTERRUPT_DTLB_MISS -KVM_HANDLER BOOKE_INTERRUPT_ITLB_MISS -KVM_HANDLER BOOKE_INTERRUPT_DEBUG -KVM_HANDLER BOOKE_INTERRUPT_SPE_UNAVAIL -KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_DATA -KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_ROUND +KVM_HANDLER BOOKE_INTERRUPT_CRITICAL SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0 +KVM_HANDLER BOOKE_INTERRUPT_MACHINE_CHECK SPRN_SPRG_RSCRATCH_MC SPRN_MCSRR0 +KVM_HANDLER BOOKE_INTERRUPT_DATA_STORAGE SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_INST_STORAGE SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_EXTERNAL SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_ALIGNMENT SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_PROGRAM SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_FP_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_SYSCALL SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_AP_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_DECREMENTER SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_FIT SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_WATCHDOG SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0 +KVM_HANDLER BOOKE_INTERRUPT_DTLB_MISS SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_ITLB_MISS SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_DEBUG SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0 +KVM_HANDLER BOOKE_INTERRUPT_SPE_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_DATA SPRN_SPRG_RSCRATCH0 SPRN_SRR0 +KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_ROUND SPRN_SPRG_RSCRATCH0 SPRN_SRR0 _GLOBAL(kvmppc_handler_len) .long kvmppc_handler_1 - kvmppc_handler_0 - /* Registers: * SPRG_SCRATCH0: guest r4 * r4: vcpu pointer * r5: KVM exit number */ _GLOBAL(kvmppc_resume_host) - stw r3, VCPU_GPR(r3)(r4) mfcr r3 stw r3, VCPU_CR(r4) stw r7, VCPU_GPR(r7)(r4) @@ -181,10 +184,6 @@ _GLOBAL(kvmppc_resume_host) stw r3, VCPU_LR(r4) mfxer r3 stw r3, VCPU_XER(r4) - mfspr r3, SPRN_SPRG_RSCRATCH0 - stw r3, VCPU_GPR(r4)(r4) - mfspr r3, SPRN_SRR0 - stw r3, VCPU_PC(r4) /* Restore host stack pointer and PID before IVPR, since the host * exception handlers use them. */ |