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Diffstat (limited to 'arch/powerpc/kvm/book3s_pr.c')
-rw-r--r--arch/powerpc/kvm/book3s_pr.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 7759053d391b..a1baec340f7e 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -120,6 +120,7 @@ void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
if (msr & MSR_POW) {
if (!vcpu->arch.pending_exceptions) {
kvm_vcpu_block(vcpu);
+ clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
vcpu->stat.halt_wakeup++;
/* Unset POW bit after we woke up */
@@ -144,6 +145,21 @@ void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
}
}
+ /*
+ * When switching from 32 to 64-bit, we may have a stale 32-bit
+ * magic page around, we need to flush it. Typically 32-bit magic
+ * page will be instanciated when calling into RTAS. Note: We
+ * assume that such transition only happens while in kernel mode,
+ * ie, we never transition from user 32-bit to kernel 64-bit with
+ * a 32-bit magic page around.
+ */
+ if (vcpu->arch.magic_page_pa &&
+ !(old_msr & MSR_PR) && !(old_msr & MSR_SF) && (msr & MSR_SF)) {
+ /* going from RTAS to normal kernel code */
+ kvmppc_mmu_pte_flush(vcpu, (uint32_t)vcpu->arch.magic_page_pa,
+ ~0xFFFUL);
+ }
+
/* Preload FPU if it's enabled */
if (vcpu->arch.shared->msr & MSR_FP)
kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
@@ -251,6 +267,9 @@ static int kvmppc_visible_gfn(struct kvm_vcpu *vcpu, gfn_t gfn)
{
ulong mp_pa = vcpu->arch.magic_page_pa;
+ if (!(vcpu->arch.shared->msr & MSR_SF))
+ mp_pa = (uint32_t)mp_pa;
+
if (unlikely(mp_pa) &&
unlikely((mp_pa & KVM_PAM) >> PAGE_SHIFT == gfn)) {
return 1;
@@ -351,6 +370,7 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* MMIO */
vcpu->stat.mmio_exits++;
vcpu->arch.paddr_accessed = pte.raddr;
+ vcpu->arch.vaddr_accessed = pte.eaddr;
r = kvmppc_emulate_mmio(run, vcpu);
if ( r == RESUME_HOST_NV )
r = RESUME_HOST;
@@ -528,6 +548,9 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
run->exit_reason = KVM_EXIT_UNKNOWN;
run->ready_for_interrupt_injection = 1;
+ /* We get here with MSR.EE=0, so enable it to be a nice citizen */
+ __hard_irq_enable();
+
trace_kvm_book3s_exit(exit_nr, vcpu);
preempt_enable();
kvm_resched(vcpu);
@@ -617,10 +640,13 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;
/* We're good on these - the host merely wanted to get our attention */
case BOOK3S_INTERRUPT_DECREMENTER:
+ case BOOK3S_INTERRUPT_HV_DECREMENTER:
vcpu->stat.dec_exits++;
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_EXTERNAL:
+ case BOOK3S_INTERRUPT_EXTERNAL_LEVEL:
+ case BOOK3S_INTERRUPT_EXTERNAL_HV:
vcpu->stat.ext_intr_exits++;
r = RESUME_GUEST;
break;
@@ -628,6 +654,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_PROGRAM:
+ case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
{
enum emulation_result er;
struct kvmppc_book3s_shadow_vcpu *svcpu;
@@ -1131,6 +1158,31 @@ out:
return r;
}
+#ifdef CONFIG_PPC64
+int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
+{
+ /* No flags */
+ info->flags = 0;
+
+ /* SLB is always 64 entries */
+ info->slb_size = 64;
+
+ /* Standard 4k base page size segment */
+ info->sps[0].page_shift = 12;
+ info->sps[0].slb_enc = 0;
+ info->sps[0].enc[0].page_shift = 12;
+ info->sps[0].enc[0].pte_enc = 0;
+
+ /* Standard 16M large page size segment */
+ info->sps[1].page_shift = 24;
+ info->sps[1].slb_enc = SLB_VSID_L;
+ info->sps[1].enc[0].page_shift = 24;
+ info->sps[1].enc[0].pte_enc = 0;
+
+ return 0;
+}
+#endif /* CONFIG_PPC64 */
+
int kvmppc_core_prepare_memory_region(struct kvm *kvm,
struct kvm_userspace_memory_region *mem)
{
@@ -1144,11 +1196,18 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm,
int kvmppc_core_init_vm(struct kvm *kvm)
{
+#ifdef CONFIG_PPC64
+ INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
+#endif
+
return 0;
}
void kvmppc_core_destroy_vm(struct kvm *kvm)
{
+#ifdef CONFIG_PPC64
+ WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
+#endif
}
static int kvmppc_book3s_init(void)