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Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
-rw-r--r--arch/powerpc/kvm/powerpc.c148
1 files changed, 113 insertions, 35 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 607fbdf24b8..00d7e345b3f 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -39,7 +39,8 @@
int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
{
return !(v->arch.shared->msr & MSR_WE) ||
- !!(v->arch.pending_exceptions);
+ !!(v->arch.pending_exceptions) ||
+ v->requests;
}
int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
@@ -66,7 +67,7 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
vcpu->arch.magic_page_pa = param1;
vcpu->arch.magic_page_ea = param2;
- r2 = KVM_MAGIC_FEAT_SR;
+ r2 = KVM_MAGIC_FEAT_SR | KVM_MAGIC_FEAT_MAS0_TO_SPRG7;
r = HC_EV_SUCCESS;
break;
@@ -171,8 +172,11 @@ void kvm_arch_check_processor_compat(void *rtn)
*(int *)rtn = kvmppc_core_check_processor_compat();
}
-int kvm_arch_init_vm(struct kvm *kvm)
+int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
{
+ if (type)
+ return -EINVAL;
+
return kvmppc_core_init_vm(kvm);
}
@@ -208,17 +212,22 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PPC_BOOKE_SREGS:
#else
case KVM_CAP_PPC_SEGSTATE:
+ case KVM_CAP_PPC_HIOR:
case KVM_CAP_PPC_PAPR:
#endif
case KVM_CAP_PPC_UNSET_IRQ:
case KVM_CAP_PPC_IRQ_LEVEL:
case KVM_CAP_ENABLE_CAP:
+ case KVM_CAP_ONE_REG:
r = 1;
break;
#ifndef CONFIG_KVM_BOOK3S_64_HV
case KVM_CAP_PPC_PAIRED_SINGLES:
case KVM_CAP_PPC_OSI:
case KVM_CAP_PPC_GET_PVINFO:
+#ifdef CONFIG_KVM_E500
+ case KVM_CAP_SW_TLB:
+#endif
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
@@ -238,7 +247,26 @@ int kvm_dev_ioctl_check_extension(long ext)
if (cpu_has_feature(CPU_FTR_ARCH_201))
r = 2;
break;
+ case KVM_CAP_SYNC_MMU:
+ r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
+ break;
#endif
+ case KVM_CAP_NR_VCPUS:
+ /*
+ * Recommending a number of CPUs is somewhat arbitrary; we
+ * return the number of present CPUs for -HV (since a host
+ * will have secondary threads "offline"), and for other KVM
+ * implementations just count online CPUs.
+ */
+#ifdef CONFIG_KVM_BOOK3S_64_HV
+ r = num_present_cpus();
+#else
+ r = num_online_cpus();
+#endif
+ break;
+ case KVM_CAP_MAX_VCPUS:
+ r = KVM_MAX_VCPUS;
+ break;
default:
r = 0;
break;
@@ -253,6 +281,16 @@ long kvm_arch_dev_ioctl(struct file *filp,
return -EINVAL;
}
+void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+ struct kvm_memory_slot *dont)
+{
+}
+
+int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+{
+ return 0;
+}
+
int kvm_arch_prepare_memory_region(struct kvm *kvm,
struct kvm_memory_slot *memslot,
struct kvm_memory_slot old,
@@ -279,9 +317,10 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
{
struct kvm_vcpu *vcpu;
vcpu = kvmppc_core_vcpu_create(kvm, id);
- vcpu->arch.wqp = &vcpu->wq;
- if (!IS_ERR(vcpu))
+ if (!IS_ERR(vcpu)) {
+ vcpu->arch.wqp = &vcpu->wq;
kvmppc_create_vcpu_debugfs(vcpu, id);
+ }
return vcpu;
}
@@ -305,18 +344,6 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
return kvmppc_core_pending_dec(vcpu);
}
-static void kvmppc_decrementer_func(unsigned long data)
-{
- struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
-
- kvmppc_core_queue_dec(vcpu);
-
- if (waitqueue_active(vcpu->arch.wqp)) {
- wake_up_interruptible(vcpu->arch.wqp);
- vcpu->stat.halt_wakeup++;
- }
-}
-
/*
* low level hrtimer wake routine. Because this runs in hardirq context
* we schedule a tasklet to do the real work.
@@ -431,20 +458,20 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
- switch (vcpu->arch.io_gpr & KVM_REG_EXT_MASK) {
- case KVM_REG_GPR:
+ switch (vcpu->arch.io_gpr & KVM_MMIO_REG_EXT_MASK) {
+ case KVM_MMIO_REG_GPR:
kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
break;
- case KVM_REG_FPR:
- vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_REG_MASK] = gpr;
+ case KVM_MMIO_REG_FPR:
+ vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
#ifdef CONFIG_PPC_BOOK3S
- case KVM_REG_QPR:
- vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_REG_MASK] = gpr;
+ case KVM_MMIO_REG_QPR:
+ vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
- case KVM_REG_FQPR:
- vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_REG_MASK] = gpr;
- vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_REG_MASK] = gpr;
+ case KVM_MMIO_REG_FQPR:
+ vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
+ vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
#endif
default:
@@ -553,8 +580,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
vcpu->arch.hcall_needed = 0;
}
- kvmppc_core_deliver_interrupts(vcpu);
-
r = kvmppc_vcpu_run(run, vcpu);
if (vcpu->sigset_active)
@@ -563,6 +588,21 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
return r;
}
+void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+ int me;
+ int cpu = vcpu->cpu;
+
+ me = get_cpu();
+ if (waitqueue_active(vcpu->arch.wqp)) {
+ wake_up_interruptible(vcpu->arch.wqp);
+ vcpu->stat.halt_wakeup++;
+ } else if (cpu != me && cpu != -1) {
+ smp_send_reschedule(vcpu->cpu);
+ }
+ put_cpu();
+}
+
int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
{
if (irq->irq == KVM_INTERRUPT_UNSET) {
@@ -571,13 +611,7 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
}
kvmppc_core_queue_external(vcpu, irq);
-
- if (waitqueue_active(vcpu->arch.wqp)) {
- wake_up_interruptible(vcpu->arch.wqp);
- vcpu->stat.halt_wakeup++;
- } else if (vcpu->cpu != -1) {
- smp_send_reschedule(vcpu->cpu);
- }
+ kvm_vcpu_kick(vcpu);
return 0;
}
@@ -599,6 +633,19 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = 0;
vcpu->arch.papr_enabled = true;
break;
+#ifdef CONFIG_KVM_E500
+ case KVM_CAP_SW_TLB: {
+ struct kvm_config_tlb cfg;
+ void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0];
+
+ r = -EFAULT;
+ if (copy_from_user(&cfg, user_ptr, sizeof(cfg)))
+ break;
+
+ r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg);
+ break;
+ }
+#endif
default:
r = -EINVAL;
break;
@@ -648,6 +695,32 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
break;
}
+
+ case KVM_SET_ONE_REG:
+ case KVM_GET_ONE_REG:
+ {
+ struct kvm_one_reg reg;
+ r = -EFAULT;
+ if (copy_from_user(&reg, argp, sizeof(reg)))
+ goto out;
+ if (ioctl == KVM_SET_ONE_REG)
+ r = kvm_vcpu_ioctl_set_one_reg(vcpu, &reg);
+ else
+ r = kvm_vcpu_ioctl_get_one_reg(vcpu, &reg);
+ break;
+ }
+
+#ifdef CONFIG_KVM_E500
+ case KVM_DIRTY_TLB: {
+ struct kvm_dirty_tlb dirty;
+ r = -EFAULT;
+ if (copy_from_user(&dirty, argp, sizeof(dirty)))
+ goto out;
+ r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty);
+ break;
+ }
+#endif
+
default:
r = -EINVAL;
}
@@ -656,6 +729,11 @@ out:
return r;
}
+int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+
static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
{
u32 inst_lis = 0x3c000000;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-30 00:51:23 +0000