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authorAnton Arapov <anton@redhat.com>2012-08-07 11:21:50 +0200
committerAnton Arapov <anton@redhat.com>2012-08-07 12:52:25 +0200
commit1d44b6f3fcf6058fb7c960b7558766967e8028f7 (patch)
tree53d88547c973ba048d233091a3f91f3173ad01df /arch/powerpc/kvm/powerpc.c
parentd91eda5d7b0383e6a0c83e0146ff141ff3b1355b (diff)
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fedora kernel: 222b075b3ff0d9e88aa9353e3c80667756ed7361v3.5.0-4
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
-rw-r--r--arch/powerpc/kvm/powerpc.c94
1 files changed, 72 insertions, 22 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 00d7e345b3f..1493c8de947 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -43,6 +43,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
v->requests;
}
+int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
+{
+ return 1;
+}
+
int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
{
int nr = kvmppc_get_gpr(vcpu, 11);
@@ -74,7 +79,7 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
}
case HC_VENDOR_KVM | KVM_HC_FEATURES:
r = HC_EV_SUCCESS;
-#if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500)
+#if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500V2)
/* XXX Missing magic page on 44x */
r2 |= (1 << KVM_FEATURE_MAGIC_PAGE);
#endif
@@ -109,6 +114,11 @@ int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
goto out;
#endif
+#ifdef CONFIG_KVM_BOOKE_HV
+ if (!cpu_has_feature(CPU_FTR_EMB_HV))
+ goto out;
+#endif
+
r = true;
out:
@@ -225,7 +235,7 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PPC_PAIRED_SINGLES:
case KVM_CAP_PPC_OSI:
case KVM_CAP_PPC_GET_PVINFO:
-#ifdef CONFIG_KVM_E500
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
case KVM_CAP_SW_TLB:
#endif
r = 1;
@@ -234,10 +244,12 @@ int kvm_dev_ioctl_check_extension(long ext)
r = KVM_COALESCED_MMIO_PAGE_OFFSET;
break;
#endif
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CAP_SPAPR_TCE:
r = 1;
break;
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_KVM_BOOK3S_64_HV
case KVM_CAP_PPC_SMT:
r = threads_per_core;
break;
@@ -267,6 +279,11 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+#ifdef CONFIG_PPC_BOOK3S_64
+ case KVM_CAP_PPC_GET_SMMU_INFO:
+ r = 1;
+ break;
+#endif
default:
r = 0;
break;
@@ -588,21 +605,6 @@ 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) {
@@ -611,6 +613,7 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
}
kvmppc_core_queue_external(vcpu, irq);
+
kvm_vcpu_kick(vcpu);
return 0;
@@ -633,7 +636,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = 0;
vcpu->arch.papr_enabled = true;
break;
-#ifdef CONFIG_KVM_E500
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
case KVM_CAP_SW_TLB: {
struct kvm_config_tlb cfg;
void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0];
@@ -710,7 +713,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
break;
}
-#ifdef CONFIG_KVM_E500
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
case KVM_DIRTY_TLB: {
struct kvm_dirty_tlb dirty;
r = -EFAULT;
@@ -720,7 +723,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
break;
}
#endif
-
default:
r = -EINVAL;
}
@@ -777,7 +779,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
break;
}
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CREATE_SPAPR_TCE: {
struct kvm_create_spapr_tce create_tce;
struct kvm *kvm = filp->private_data;
@@ -788,7 +790,9 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce);
goto out;
}
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_KVM_BOOK3S_64_HV
case KVM_ALLOCATE_RMA: {
struct kvm *kvm = filp->private_data;
struct kvm_allocate_rma rma;
@@ -800,6 +804,18 @@ long kvm_arch_vm_ioctl(struct file *filp,
}
#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#ifdef CONFIG_PPC_BOOK3S_64
+ case KVM_PPC_GET_SMMU_INFO: {
+ struct kvm *kvm = filp->private_data;
+ struct kvm_ppc_smmu_info info;
+
+ memset(&info, 0, sizeof(info));
+ r = kvm_vm_ioctl_get_smmu_info(kvm, &info);
+ if (r >= 0 && copy_to_user(argp, &info, sizeof(info)))
+ r = -EFAULT;
+ break;
+ }
+#endif /* CONFIG_PPC_BOOK3S_64 */
default:
r = -ENOTTY;
}
@@ -808,6 +824,40 @@ out:
return r;
}
+static unsigned long lpid_inuse[BITS_TO_LONGS(KVMPPC_NR_LPIDS)];
+static unsigned long nr_lpids;
+
+long kvmppc_alloc_lpid(void)
+{
+ long lpid;
+
+ do {
+ lpid = find_first_zero_bit(lpid_inuse, KVMPPC_NR_LPIDS);
+ if (lpid >= nr_lpids) {
+ pr_err("%s: No LPIDs free\n", __func__);
+ return -ENOMEM;
+ }
+ } while (test_and_set_bit(lpid, lpid_inuse));
+
+ return lpid;
+}
+
+void kvmppc_claim_lpid(long lpid)
+{
+ set_bit(lpid, lpid_inuse);
+}
+
+void kvmppc_free_lpid(long lpid)
+{
+ clear_bit(lpid, lpid_inuse);
+}
+
+void kvmppc_init_lpid(unsigned long nr_lpids_param)
+{
+ nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param);
+ memset(lpid_inuse, 0, sizeof(lpid_inuse));
+}
+
int kvm_arch_init(void *opaque)
{
return 0;