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yaml
---
r: 186061
b: refs/heads/master
c: daf5e27
h: refs/heads/master
i:
  186059: 7bbf1aa
v: v3
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Liu Yu authored and Marcelo Tosatti committed Mar 1, 2010
1 parent d5273a3 commit 5b33bcf
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Showing 4 changed files with 49 additions and 18 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 4b7bb9210047fe880bb71e6273c3a4526799dbd7
refs/heads/master: daf5e27109c8c16c987e955cc6abbbc0af050edd
2 changes: 2 additions & 0 deletions trunk/arch/powerpc/include/asm/kvm_host.h
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Expand Up @@ -259,6 +259,8 @@ struct kvm_vcpu_arch {
#endif
ulong fault_dear;
ulong fault_esr;
ulong queued_dear;
ulong queued_esr;
gpa_t paddr_accessed;

u8 io_gpr; /* GPR used as IO source/target */
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59 changes: 44 additions & 15 deletions trunk/arch/powerpc/kvm/booke.c
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Expand Up @@ -82,9 +82,32 @@ static void kvmppc_booke_queue_irqprio(struct kvm_vcpu *vcpu,
set_bit(priority, &vcpu->arch.pending_exceptions);
}

void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
static void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu,
ulong dear_flags, ulong esr_flags)
{
/* BookE does flags in ESR, so ignore those we get here */
vcpu->arch.queued_dear = dear_flags;
vcpu->arch.queued_esr = esr_flags;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
}

static void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
ulong dear_flags, ulong esr_flags)
{
vcpu->arch.queued_dear = dear_flags;
vcpu->arch.queued_esr = esr_flags;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DATA_STORAGE);
}

static void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
ulong esr_flags)
{
vcpu->arch.queued_esr = esr_flags;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_INST_STORAGE);
}

void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong esr_flags)
{
vcpu->arch.queued_esr = esr_flags;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_PROGRAM);
}

Expand Down Expand Up @@ -115,14 +138,19 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
{
int allowed = 0;
ulong msr_mask;
bool update_esr = false, update_dear = false;

switch (priority) {
case BOOKE_IRQPRIO_PROGRAM:
case BOOKE_IRQPRIO_DTLB_MISS:
case BOOKE_IRQPRIO_ITLB_MISS:
case BOOKE_IRQPRIO_SYSCALL:
case BOOKE_IRQPRIO_DATA_STORAGE:
update_dear = true;
/* fall through */
case BOOKE_IRQPRIO_INST_STORAGE:
case BOOKE_IRQPRIO_PROGRAM:
update_esr = true;
/* fall through */
case BOOKE_IRQPRIO_ITLB_MISS:
case BOOKE_IRQPRIO_SYSCALL:
case BOOKE_IRQPRIO_FP_UNAVAIL:
case BOOKE_IRQPRIO_SPE_UNAVAIL:
case BOOKE_IRQPRIO_SPE_FP_DATA:
Expand Down Expand Up @@ -157,6 +185,10 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
vcpu->arch.srr0 = vcpu->arch.pc;
vcpu->arch.srr1 = vcpu->arch.msr;
vcpu->arch.pc = vcpu->arch.ivpr | vcpu->arch.ivor[priority];
if (update_esr == true)
vcpu->arch.esr = vcpu->arch.queued_esr;
if (update_dear == true)
vcpu->arch.dear = vcpu->arch.queued_dear;
kvmppc_set_msr(vcpu, vcpu->arch.msr & msr_mask);

clear_bit(priority, &vcpu->arch.pending_exceptions);
Expand Down Expand Up @@ -229,8 +261,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
if (vcpu->arch.msr & MSR_PR) {
/* Program traps generated by user-level software must be handled
* by the guest kernel. */
vcpu->arch.esr = vcpu->arch.fault_esr;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_PROGRAM);
kvmppc_core_queue_program(vcpu, vcpu->arch.fault_esr);
r = RESUME_GUEST;
kvmppc_account_exit(vcpu, USR_PR_INST);
break;
Expand Down Expand Up @@ -286,16 +317,14 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;

case BOOKE_INTERRUPT_DATA_STORAGE:
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DATA_STORAGE);
kvmppc_core_queue_data_storage(vcpu, vcpu->arch.fault_dear,
vcpu->arch.fault_esr);
kvmppc_account_exit(vcpu, DSI_EXITS);
r = RESUME_GUEST;
break;

case BOOKE_INTERRUPT_INST_STORAGE:
vcpu->arch.esr = vcpu->arch.fault_esr;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_INST_STORAGE);
kvmppc_core_queue_inst_storage(vcpu, vcpu->arch.fault_esr);
kvmppc_account_exit(vcpu, ISI_EXITS);
r = RESUME_GUEST;
break;
Expand All @@ -316,9 +345,9 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
gtlb_index = kvmppc_mmu_dtlb_index(vcpu, eaddr);
if (gtlb_index < 0) {
/* The guest didn't have a mapping for it. */
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
kvmppc_core_queue_dtlb_miss(vcpu,
vcpu->arch.fault_dear,
vcpu->arch.fault_esr);
kvmppc_mmu_dtlb_miss(vcpu);
kvmppc_account_exit(vcpu, DTLB_REAL_MISS_EXITS);
r = RESUME_GUEST;
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4 changes: 2 additions & 2 deletions trunk/arch/powerpc/kvm/emulate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -151,10 +151,10 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
case OP_TRAP:
#ifdef CONFIG_PPC64
case OP_TRAP_64:
kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP);
#else
vcpu->arch.esr |= ESR_PTR;
kvmppc_core_queue_program(vcpu, vcpu->arch.esr | ESR_PTR);
#endif
kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP);
advance = 0;
break;

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