Merge tag 'kvmarm-for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 4.19

- Support for Group0 interrupts in guests
- Cache management optimizations for ARMv8.4 systems
- Userspace interface for RAS, allowing error retrival and injection
- Fault path optimization
- Emulated physical timer fixes
- Random cleanups

1 files changed, 17 insertions, 10 deletions

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 4ed79c939fb4..12502251727e 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -71,6 +71,7 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid,
 	kref_init(&irq->refcount);
 	irq->intid = intid;
 	irq->target_vcpu = vcpu;
+	irq->group = 1;
 
 	spin_lock_irqsave(&dist->lpi_list_lock, flags);
 
@@ -168,8 +169,14 @@ struct vgic_its_abi {
 	int (*commit)(struct vgic_its *its);
 };
 
+#define ABI_0_ESZ	8
+#define ESZ_MAX		ABI_0_ESZ
+
 static const struct vgic_its_abi its_table_abi_versions[] = {
-	[0] = {.cte_esz = 8, .dte_esz = 8, .ite_esz = 8,
+	[0] = {
+	 .cte_esz = ABI_0_ESZ,
+	 .dte_esz = ABI_0_ESZ,
+	 .ite_esz = ABI_0_ESZ,
 	 .save_tables = vgic_its_save_tables_v0,
 	 .restore_tables = vgic_its_restore_tables_v0,
 	 .commit = vgic_its_commit_v0,
@@ -183,7 +190,7 @@ inline const struct vgic_its_abi *vgic_its_get_abi(struct vgic_its *its)
 	return &its_table_abi_versions[its->abi_rev];
 }
 
-int vgic_its_set_abi(struct vgic_its *its, int rev)
+static int vgic_its_set_abi(struct vgic_its *its, u32 rev)
 {
 	const struct vgic_its_abi *abi;
 
@@ -312,9 +319,9 @@ static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq,
  * enumerate those LPIs without holding any lock.
  * Returns their number and puts the kmalloc'ed array into intid_ptr.
  */
-static int vgic_copy_lpi_list(struct kvm_vcpu *vcpu, u32 **intid_ptr)
+int vgic_copy_lpi_list(struct kvm *kvm, struct kvm_vcpu *vcpu, u32 **intid_ptr)
 {
-	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+	struct vgic_dist *dist = &kvm->arch.vgic;
 	struct vgic_irq *irq;
 	unsigned long flags;
 	u32 *intids;
@@ -337,7 +344,7 @@ static int vgic_copy_lpi_list(struct kvm_vcpu *vcpu, u32 **intid_ptr)
 		if (i == irq_count)
 			break;
 		/* We don't need to "get" the IRQ, as we hold the list lock. */
-		if (irq->target_vcpu != vcpu)
+		if (vcpu && irq->target_vcpu != vcpu)
 			continue;
 		intids[i++] = irq->intid;
 	}
@@ -429,7 +436,7 @@ static int its_sync_lpi_pending_table(struct kvm_vcpu *vcpu)
 	unsigned long flags;
 	u8 pendmask;
 
-	nr_irqs = vgic_copy_lpi_list(vcpu, &intids);
+	nr_irqs = vgic_copy_lpi_list(vcpu->kvm, vcpu, &intids);
 	if (nr_irqs < 0)
 		return nr_irqs;
 
@@ -1154,7 +1161,7 @@ static int vgic_its_cmd_handle_invall(struct kvm *kvm, struct vgic_its *its,
 
 	vcpu = kvm_get_vcpu(kvm, collection->target_addr);
 
-	irq_count = vgic_copy_lpi_list(vcpu, &intids);
+	irq_count = vgic_copy_lpi_list(kvm, vcpu, &intids);
 	if (irq_count < 0)
 		return irq_count;
 
@@ -1202,7 +1209,7 @@ static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its,
 	vcpu1 = kvm_get_vcpu(kvm, target1_addr);
 	vcpu2 = kvm_get_vcpu(kvm, target2_addr);
 
-	irq_count = vgic_copy_lpi_list(vcpu1, &intids);
+	irq_count = vgic_copy_lpi_list(kvm, vcpu1, &intids);
 	if (irq_count < 0)
 		return irq_count;
 
@@ -1881,14 +1888,14 @@ typedef int (*entry_fn_t)(struct vgic_its *its, u32 id, void *entry,
  * Return: < 0 on error, 0 if last element was identified, 1 otherwise
  * (the last element may not be found on second level tables)
  */
-static int scan_its_table(struct vgic_its *its, gpa_t base, int size, int esz,
+static int scan_its_table(struct vgic_its *its, gpa_t base, int size, u32 esz,
 			  int start_id, entry_fn_t fn, void *opaque)
 {
 	struct kvm *kvm = its->dev->kvm;
 	unsigned long len = size;
 	int id = start_id;
 	gpa_t gpa = base;
-	char entry[esz];
+	char entry[ESZ_MAX];
 	int ret;
 
 	memset(entry, 0, esz);