Merge branch 'next' into for-linus

Prepare input updates for 5.3 merge window.

1 files changed, 47 insertions, 22 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 2869a299c4ed..8885377ec3e0 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -331,10 +331,17 @@ int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 {
 	ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK;
 	struct kvmppc_pte pte;
-	int r;
+	int r = -EINVAL;
 
 	vcpu->stat.st++;
 
+	if (vcpu->kvm->arch.kvm_ops && vcpu->kvm->arch.kvm_ops->store_to_eaddr)
+		r = vcpu->kvm->arch.kvm_ops->store_to_eaddr(vcpu, eaddr, ptr,
+							    size);
+
+	if ((!r) || (r == -EAGAIN))
+		return r;
+
 	r = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
 			 XLATE_WRITE, &pte);
 	if (r < 0)
@@ -367,10 +374,17 @@ int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 {
 	ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK;
 	struct kvmppc_pte pte;
-	int rc;
+	int rc = -EINVAL;
 
 	vcpu->stat.ld++;
 
+	if (vcpu->kvm->arch.kvm_ops && vcpu->kvm->arch.kvm_ops->load_from_eaddr)
+		rc = vcpu->kvm->arch.kvm_ops->load_from_eaddr(vcpu, eaddr, ptr,
+							      size);
+
+	if ((!rc) || (rc == -EAGAIN))
+		return rc;
+
 	rc = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
 			  XLATE_READ, &pte);
 	if (rc)
@@ -518,7 +532,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_PPC_UNSET_IRQ:
 	case KVM_CAP_PPC_IRQ_LEVEL:
 	case KVM_CAP_ENABLE_CAP:
-	case KVM_CAP_ENABLE_CAP_VM:
 	case KVM_CAP_ONE_REG:
 	case KVM_CAP_IOEVENTFD:
 	case KVM_CAP_DEVICE_CTRL:
@@ -543,8 +556,11 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 #ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_CAP_SPAPR_TCE:
 	case KVM_CAP_SPAPR_TCE_64:
-		/* fallthrough */
+		r = 1;
+		break;
 	case KVM_CAP_SPAPR_TCE_VFIO:
+		r = !!cpu_has_feature(CPU_FTR_HVMODE);
+		break;
 	case KVM_CAP_PPC_RTAS:
 	case KVM_CAP_PPC_FIXUP_HCALL:
 	case KVM_CAP_PPC_ENABLE_HCALL:
@@ -696,7 +712,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 				   const struct kvm_memory_slot *new,
 				   enum kvm_mr_change change)
 {
-	kvmppc_core_commit_memory_region(kvm, mem, old, new);
+	kvmppc_core_commit_memory_region(kvm, mem, old, new, change);
 }
 
 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
@@ -732,7 +748,7 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
 		kvmppc_mpic_disconnect_vcpu(vcpu->arch.mpic, vcpu);
 		break;
 	case KVMPPC_IRQ_XICS:
-		if (xive_enabled())
+		if (xics_on_xive())
 			kvmppc_xive_cleanup_vcpu(vcpu);
 		else
 			kvmppc_xics_free_icp(vcpu);
@@ -1192,6 +1208,14 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
 			kvmppc_set_vmx_byte(vcpu, gpr);
 		break;
 #endif
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	case KVM_MMIO_REG_NESTED_GPR:
+		if (kvmppc_need_byteswap(vcpu))
+			gpr = swab64(gpr);
+		kvm_vcpu_write_guest(vcpu, vcpu->arch.nested_io_gpr, &gpr,
+				     sizeof(gpr));
+		break;
+#endif
 	default:
 		BUG();
 	}
@@ -1907,7 +1931,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
 		r = -EPERM;
 		dev = kvm_device_from_filp(f.file);
 		if (dev) {
-			if (xive_enabled())
+			if (xics_on_xive())
 				r = kvmppc_xive_connect_vcpu(dev, vcpu, cap->args[1]);
 			else
 				r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]);
@@ -2084,8 +2108,8 @@ int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event,
 }
 
 
-static int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
-				   struct kvm_enable_cap *cap)
+int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
+			    struct kvm_enable_cap *cap)
 {
 	int r;
 
@@ -2165,10 +2189,12 @@ static int pseries_get_cpu_char(struct kvm_ppc_cpu_char *cp)
 			KVM_PPC_CPU_CHAR_L1D_THREAD_PRIV |
 			KVM_PPC_CPU_CHAR_BR_HINT_HONOURED |
 			KVM_PPC_CPU_CHAR_MTTRIG_THR_RECONF |
-			KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS;
+			KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS |
+			KVM_PPC_CPU_CHAR_BCCTR_FLUSH_ASSIST;
 		cp->behaviour_mask = KVM_PPC_CPU_BEHAV_FAVOUR_SECURITY |
 			KVM_PPC_CPU_BEHAV_L1D_FLUSH_PR |
-			KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR;
+			KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR |
+			KVM_PPC_CPU_BEHAV_FLUSH_COUNT_CACHE;
 	}
 	return 0;
 }
@@ -2227,12 +2253,16 @@ static int kvmppc_get_cpu_char(struct kvm_ppc_cpu_char *cp)
 		if (have_fw_feat(fw_features, "enabled",
 				 "fw-count-cache-disabled"))
 			cp->character |= KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS;
+		if (have_fw_feat(fw_features, "enabled",
+				 "fw-count-cache-flush-bcctr2,0,0"))
+			cp->character |= KVM_PPC_CPU_CHAR_BCCTR_FLUSH_ASSIST;
 		cp->character_mask = KVM_PPC_CPU_CHAR_SPEC_BAR_ORI31 |
 			KVM_PPC_CPU_CHAR_BCCTRL_SERIALISED |
 			KVM_PPC_CPU_CHAR_L1D_FLUSH_ORI30 |
 			KVM_PPC_CPU_CHAR_L1D_FLUSH_TRIG2 |
 			KVM_PPC_CPU_CHAR_L1D_THREAD_PRIV |
-			KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS;
+			KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS |
+			KVM_PPC_CPU_CHAR_BCCTR_FLUSH_ASSIST;
 
 		if (have_fw_feat(fw_features, "enabled",
 				 "speculation-policy-favor-security"))
@@ -2243,9 +2273,13 @@ static int kvmppc_get_cpu_char(struct kvm_ppc_cpu_char *cp)
 		if (!have_fw_feat(fw_features, "disabled",
 				  "needs-spec-barrier-for-bound-checks"))
 			cp->behaviour |= KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR;
+		if (have_fw_feat(fw_features, "enabled",
+				 "needs-count-cache-flush-on-context-switch"))
+			cp->behaviour |= KVM_PPC_CPU_BEHAV_FLUSH_COUNT_CACHE;
 		cp->behaviour_mask = KVM_PPC_CPU_BEHAV_FAVOUR_SECURITY |
 			KVM_PPC_CPU_BEHAV_L1D_FLUSH_PR |
-			KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR;
+			KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR |
+			KVM_PPC_CPU_BEHAV_FLUSH_COUNT_CACHE;
 
 		of_node_put(fw_features);
 	}
@@ -2273,15 +2307,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
 
 		break;
 	}
-	case KVM_ENABLE_CAP:
-	{
-		struct kvm_enable_cap cap;
-		r = -EFAULT;
-		if (copy_from_user(&cap, argp, sizeof(cap)))
-			goto out;
-		r = kvm_vm_ioctl_enable_cap(kvm, &cap);
-		break;
-	}
 #ifdef CONFIG_SPAPR_TCE_IOMMU
 	case KVM_CREATE_SPAPR_TCE_64: {
 		struct kvm_create_spapr_tce_64 create_tce_64;