Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM changes from Avi Kivity:
 "Changes include additional instruction emulation, page-crossing MMIO,
  faster dirty logging, preventing the watchdog from killing a stopped
  guest, module autoload, a new MSI ABI, and some minor optimizations
  and fixes.  Outside x86 we have a small s390 and a very large ppc
  update.

  Regarding the new (for kvm) rebaseless workflow, some of the patches
  that were merged before we switch trees had to be rebased, while
  others are true pulls.  In either case the signoffs should be correct
  now."

Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
arch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.

I suspect the kvm_para.h resolution ends up doing the "do I have cpuid"
check effectively twice (it was done differently in two different
commits), but better safe than sorry ;)

* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)
  KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block
  KVM: s390: onereg for timer related registers
  KVM: s390: epoch difference and TOD programmable field
  KVM: s390: KVM_GET/SET_ONEREG for s390
  KVM: s390: add capability indicating COW support
  KVM: Fix mmu_reload() clash with nested vmx event injection
  KVM: MMU: Don't use RCU for lockless shadow walking
  KVM: VMX: Optimize %ds, %es reload
  KVM: VMX: Fix %ds/%es clobber
  KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()
  KVM: VMX: unlike vmcs on fail path
  KVM: PPC: Emulator: clean up SPR reads and writes
  KVM: PPC: Emulator: clean up instruction parsing
  kvm/powerpc: Add new ioctl to retreive server MMU infos
  kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM
  KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler
  KVM: PPC: Book3S: Enable IRQs during exit handling
  KVM: PPC: Fix PR KVM on POWER7 bare metal
  KVM: PPC: Fix stbux emulation
  KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields
  ...

1 files changed, 72 insertions, 22 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 00d7e345b3fe..1493c8de947b 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;