Merge branch kvm-arm64/memory-accounting into kvmarm-master/next

* kvm-arm64/memory-accounting:
  : .
  : Sprinkle a bunch of GFP_KERNEL_ACCOUNT all over the code base
  : to better track memory allocation made on behalf of a VM.
  : .
  KVM: arm64: Add memcg accounting to KVM allocations
  KVM: arm64: vgic: Add memcg accounting to vgic allocations

Signed-off-by: Marc Zyngier <maz@kernel.org>

Author: Marc Zyngier

arch/arm64/kvm/arm.c

@@ -291,10 +291,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
 
 struct kvm *kvm_arch_alloc_vm(void)
 {
+	size_t sz = sizeof(struct kvm);
+
 	if (!has_vhe())
-		return kzalloc(sizeof(struct kvm), GFP_KERNEL);
+		return kzalloc(sz, GFP_KERNEL_ACCOUNT);
 
-	return vzalloc(sizeof(struct kvm));
+	return __vmalloc(sz, GFP_KERNEL_ACCOUNT | __GFP_HIGHMEM | __GFP_ZERO);
 }
 
 void kvm_arch_free_vm(struct kvm *kvm)

arch/arm64/kvm/mmu.c

@@ -512,7 +512,7 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
 		return -EINVAL;
 	}
 
-	pgt = kzalloc(sizeof(*pgt), GFP_KERNEL);
+	pgt = kzalloc(sizeof(*pgt), GFP_KERNEL_ACCOUNT);
 	if (!pgt)
 		return -ENOMEM;
 

arch/arm64/kvm/pmu-emul.c

@@ -978,7 +978,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		mutex_lock(&vcpu->kvm->lock);
 
 		if (!vcpu->kvm->arch.pmu_filter) {
-			vcpu->kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL);
+			vcpu->kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL_ACCOUNT);
 			if (!vcpu->kvm->arch.pmu_filter) {
 				mutex_unlock(&vcpu->kvm->lock);
 				return -ENOMEM;

arch/arm64/kvm/reset.c

@@ -106,7 +106,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 		    vl > SVE_VL_ARCH_MAX))
 		return -EIO;
 
-	buf = kzalloc(SVE_SIG_REGS_SIZE(sve_vq_from_vl(vl)), GFP_KERNEL);
+	buf = kzalloc(SVE_SIG_REGS_SIZE(sve_vq_from_vl(vl)), GFP_KERNEL_ACCOUNT);
 	if (!buf)
 		return -ENOMEM;
 

arch/arm64/kvm/vgic/vgic-init.c

@@ -134,7 +134,7 @@ static int kvm_vgic_dist_init(struct kvm *kvm, unsigned int nr_spis)
 	struct kvm_vcpu *vcpu0 = kvm_get_vcpu(kvm, 0);
 	int i;
 
-	dist->spis = kcalloc(nr_spis, sizeof(struct vgic_irq), GFP_KERNEL);
+	dist->spis = kcalloc(nr_spis, sizeof(struct vgic_irq), GFP_KERNEL_ACCOUNT);
 	if (!dist->spis)
 		return  -ENOMEM;
 

arch/arm64/kvm/vgic/vgic-irqfd.c

@@ -139,7 +139,7 @@ int kvm_vgic_setup_default_irq_routing(struct kvm *kvm)
 	u32 nr = dist->nr_spis;
 	int i, ret;
 
-	entries = kcalloc(nr, sizeof(*entries), GFP_KERNEL);
+	entries = kcalloc(nr, sizeof(*entries), GFP_KERNEL_ACCOUNT);
 	if (!entries)
 		return -ENOMEM;
 

arch/arm64/kvm/vgic/vgic-its.c

@@ -48,7 +48,7 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid,
 	if (irq)
 		return irq;
 
-	irq = kzalloc(sizeof(struct vgic_irq), GFP_KERNEL);
+	irq = kzalloc(sizeof(struct vgic_irq), GFP_KERNEL_ACCOUNT);
 	if (!irq)
 		return ERR_PTR(-ENOMEM);
 
@@ -332,7 +332,7 @@ int vgic_copy_lpi_list(struct kvm *kvm, struct kvm_vcpu *vcpu, u32 **intid_ptr)
 	 * we must be careful not to overrun the array.
 	 */
 	irq_count = READ_ONCE(dist->lpi_list_count);
-	intids = kmalloc_array(irq_count, sizeof(intids[0]), GFP_KERNEL);
+	intids = kmalloc_array(irq_count, sizeof(intids[0]), GFP_KERNEL_ACCOUNT);
 	if (!intids)
 		return -ENOMEM;
 
@@ -985,7 +985,7 @@ static int vgic_its_alloc_collection(struct vgic_its *its,
 	if (!vgic_its_check_id(its, its->baser_coll_table, coll_id, NULL))
 		return E_ITS_MAPC_COLLECTION_OOR;
 
-	collection = kzalloc(sizeof(*collection), GFP_KERNEL);
+	collection = kzalloc(sizeof(*collection), GFP_KERNEL_ACCOUNT);
 	if (!collection)
 		return -ENOMEM;
 
@@ -1029,7 +1029,7 @@ static struct its_ite *vgic_its_alloc_ite(struct its_device *device,
 {
 	struct its_ite *ite;
 
-	ite = kzalloc(sizeof(*ite), GFP_KERNEL);
+	ite = kzalloc(sizeof(*ite), GFP_KERNEL_ACCOUNT);
 	if (!ite)
 		return ERR_PTR(-ENOMEM);
 
@@ -1150,7 +1150,7 @@ static struct its_device *vgic_its_alloc_device(struct vgic_its *its,
 {
 	struct its_device *device;
 
-	device = kzalloc(sizeof(*device), GFP_KERNEL);
+	device = kzalloc(sizeof(*device), GFP_KERNEL_ACCOUNT);
 	if (!device)
 		return ERR_PTR(-ENOMEM);
 
@@ -1847,7 +1847,7 @@ void vgic_lpi_translation_cache_init(struct kvm *kvm)
 		struct vgic_translation_cache_entry *cte;
 
 		/* An allocation failure is not fatal */
-		cte = kzalloc(sizeof(*cte), GFP_KERNEL);
+		cte = kzalloc(sizeof(*cte), GFP_KERNEL_ACCOUNT);
 		if (WARN_ON(!cte))
 			break;
 
@@ -1888,7 +1888,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type)
 	if (type != KVM_DEV_TYPE_ARM_VGIC_ITS)
 		return -ENODEV;
 
-	its = kzalloc(sizeof(struct vgic_its), GFP_KERNEL);
+	its = kzalloc(sizeof(struct vgic_its), GFP_KERNEL_ACCOUNT);
 	if (!its)
 		return -ENOMEM;
 

arch/arm64/kvm/vgic/vgic-mmio-v3.c

@@ -836,7 +836,7 @@ static int vgic_v3_alloc_redist_region(struct kvm *kvm, uint32_t index,
 	if (vgic_v3_rdist_overlap(kvm, base, size))
 		return -EINVAL;
 
-	rdreg = kzalloc(sizeof(*rdreg), GFP_KERNEL);
+	rdreg = kzalloc(sizeof(*rdreg), GFP_KERNEL_ACCOUNT);
 	if (!rdreg)
 		return -ENOMEM;
 

arch/arm64/kvm/vgic/vgic-v4.c

@@ -246,7 +246,7 @@ int vgic_v4_init(struct kvm *kvm)
 	nr_vcpus = atomic_read(&kvm->online_vcpus);
 
 	dist->its_vm.vpes = kcalloc(nr_vcpus, sizeof(*dist->its_vm.vpes),
-				    GFP_KERNEL);
+				    GFP_KERNEL_ACCOUNT);
 	if (!dist->its_vm.vpes)
 		return -ENOMEM;