diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/api/openapi.yaml b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/api/openapi.yaml
index fb9cc6a756..dcd0fb938c 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/api/openapi.yaml
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/api/openapi.yaml
@@ -358,6 +358,7 @@ components:
             hugepages: false
             shared: false
             hugepage_size: 4
+            prefault: false
             mergeable: false
             size: 9
             hotplugged_size: 2
@@ -365,6 +366,7 @@ components:
             - hugepages: false
               shared: false
               hugepage_size: 1
+              prefault: false
               mergeable: false
               file: file
               size: 7
@@ -375,6 +377,7 @@ components:
             - hugepages: false
               shared: false
               hugepage_size: 1
+              prefault: false
               mergeable: false
               file: file
               size: 7
@@ -663,6 +666,7 @@ components:
           hugepages: false
           shared: false
           hugepage_size: 4
+          prefault: false
           mergeable: false
           size: 9
           hotplugged_size: 2
@@ -670,6 +674,7 @@ components:
           - hugepages: false
             shared: false
             hugepage_size: 1
+            prefault: false
             mergeable: false
             file: file
             size: 7
@@ -680,6 +685,7 @@ components:
           - hugepages: false
             shared: false
             hugepage_size: 1
+            prefault: false
             mergeable: false
             file: file
             size: 7
@@ -983,6 +989,7 @@ components:
         hugepages: false
         shared: false
         hugepage_size: 1
+        prefault: false
         mergeable: false
         file: file
         size: 7
@@ -1019,6 +1026,9 @@ components:
         hotplugged_size:
           format: int64
           type: integer
+        prefault:
+          default: false
+          type: boolean
       required:
       - id
       - size
@@ -1028,6 +1038,7 @@ components:
         hugepages: false
         shared: false
         hugepage_size: 4
+        prefault: false
         mergeable: false
         size: 9
         hotplugged_size: 2
@@ -1035,6 +1046,7 @@ components:
         - hugepages: false
           shared: false
           hugepage_size: 1
+          prefault: false
           mergeable: false
           file: file
           size: 7
@@ -1045,6 +1057,7 @@ components:
         - hugepages: false
           shared: false
           hugepage_size: 1
+          prefault: false
           mergeable: false
           file: file
           size: 7
@@ -1079,6 +1092,9 @@ components:
         hugepage_size:
           format: int64
           type: integer
+        prefault:
+          default: false
+          type: boolean
         zones:
           items:
             $ref: '#/components/schemas/MemoryZoneConfig'
diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryConfig.md b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryConfig.md
index e873e5348c..669bcc5186 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryConfig.md
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryConfig.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **Shared** | Pointer to **bool** |  | [optional] [default to false]
 **Hugepages** | Pointer to **bool** |  | [optional] [default to false]
 **HugepageSize** | Pointer to **int64** |  | [optional] 
+**Prefault** | Pointer to **bool** |  | [optional] [default to false]
 **Zones** | Pointer to [**[]MemoryZoneConfig**](MemoryZoneConfig.md) |  | [optional] 
 
 ## Methods
@@ -228,6 +229,31 @@ SetHugepageSize sets HugepageSize field to given value.
 
 HasHugepageSize returns a boolean if a field has been set.
 
+### GetPrefault
+
+`func (o *MemoryConfig) GetPrefault() bool`
+
+GetPrefault returns the Prefault field if non-nil, zero value otherwise.
+
+### GetPrefaultOk
+
+`func (o *MemoryConfig) GetPrefaultOk() (*bool, bool)`
+
+GetPrefaultOk returns a tuple with the Prefault field if it's non-nil, zero value otherwise
+and a boolean to check if the value has been set.
+
+### SetPrefault
+
+`func (o *MemoryConfig) SetPrefault(v bool)`
+
+SetPrefault sets Prefault field to given value.
+
+### HasPrefault
+
+`func (o *MemoryConfig) HasPrefault() bool`
+
+HasPrefault returns a boolean if a field has been set.
+
 ### GetZones
 
 `func (o *MemoryConfig) GetZones() []MemoryZoneConfig`
diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryZoneConfig.md b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryZoneConfig.md
index 2b4c2b4168..9bec64f03b 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryZoneConfig.md
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/docs/MemoryZoneConfig.md
@@ -14,6 +14,7 @@ Name | Type | Description | Notes
 **HostNumaNode** | Pointer to **int32** |  | [optional] 
 **HotplugSize** | Pointer to **int64** |  | [optional] 
 **HotpluggedSize** | Pointer to **int64** |  | [optional] 
+**Prefault** | Pointer to **bool** |  | [optional] [default to false]
 
 ## Methods
 
@@ -274,6 +275,31 @@ SetHotpluggedSize sets HotpluggedSize field to given value.
 
 HasHotpluggedSize returns a boolean if a field has been set.
 
+### GetPrefault
+
+`func (o *MemoryZoneConfig) GetPrefault() bool`
+
+GetPrefault returns the Prefault field if non-nil, zero value otherwise.
+
+### GetPrefaultOk
+
+`func (o *MemoryZoneConfig) GetPrefaultOk() (*bool, bool)`
+
+GetPrefaultOk returns a tuple with the Prefault field if it's non-nil, zero value otherwise
+and a boolean to check if the value has been set.
+
+### SetPrefault
+
+`func (o *MemoryZoneConfig) SetPrefault(v bool)`
+
+SetPrefault sets Prefault field to given value.
+
+### HasPrefault
+
+`func (o *MemoryZoneConfig) HasPrefault() bool`
+
+HasPrefault returns a boolean if a field has been set.
+
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_config.go b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_config.go
index 52fca6fa5e..f7b4bb09ae 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_config.go
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_config.go
@@ -24,6 +24,7 @@ type MemoryConfig struct {
 	Shared         *bool               `json:"shared,omitempty"`
 	Hugepages      *bool               `json:"hugepages,omitempty"`
 	HugepageSize   *int64              `json:"hugepage_size,omitempty"`
+	Prefault       *bool               `json:"prefault,omitempty"`
 	Zones          *[]MemoryZoneConfig `json:"zones,omitempty"`
 }
 
@@ -42,6 +43,8 @@ func NewMemoryConfig(size int64) *MemoryConfig {
 	this.Shared = &shared
 	var hugepages bool = false
 	this.Hugepages = &hugepages
+	var prefault bool = false
+	this.Prefault = &prefault
 	return &this
 }
 
@@ -58,6 +61,8 @@ func NewMemoryConfigWithDefaults() *MemoryConfig {
 	this.Shared = &shared
 	var hugepages bool = false
 	this.Hugepages = &hugepages
+	var prefault bool = false
+	this.Prefault = &prefault
 	return &this
 }
 
@@ -309,6 +314,38 @@ func (o *MemoryConfig) SetHugepageSize(v int64) {
 	o.HugepageSize = &v
 }
 
+// GetPrefault returns the Prefault field value if set, zero value otherwise.
+func (o *MemoryConfig) GetPrefault() bool {
+	if o == nil || o.Prefault == nil {
+		var ret bool
+		return ret
+	}
+	return *o.Prefault
+}
+
+// GetPrefaultOk returns a tuple with the Prefault field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *MemoryConfig) GetPrefaultOk() (*bool, bool) {
+	if o == nil || o.Prefault == nil {
+		return nil, false
+	}
+	return o.Prefault, true
+}
+
+// HasPrefault returns a boolean if a field has been set.
+func (o *MemoryConfig) HasPrefault() bool {
+	if o != nil && o.Prefault != nil {
+		return true
+	}
+
+	return false
+}
+
+// SetPrefault gets a reference to the given bool and assigns it to the Prefault field.
+func (o *MemoryConfig) SetPrefault(v bool) {
+	o.Prefault = &v
+}
+
 // GetZones returns the Zones field value if set, zero value otherwise.
 func (o *MemoryConfig) GetZones() []MemoryZoneConfig {
 	if o == nil || o.Zones == nil {
@@ -367,6 +404,9 @@ func (o MemoryConfig) MarshalJSON() ([]byte, error) {
 	if o.HugepageSize != nil {
 		toSerialize["hugepage_size"] = o.HugepageSize
 	}
+	if o.Prefault != nil {
+		toSerialize["prefault"] = o.Prefault
+	}
 	if o.Zones != nil {
 		toSerialize["zones"] = o.Zones
 	}
diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_zone_config.go b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_zone_config.go
index 49e2f37022..9dc2f9dbca 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_zone_config.go
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/client/model_memory_zone_config.go
@@ -26,6 +26,7 @@ type MemoryZoneConfig struct {
 	HostNumaNode   *int32  `json:"host_numa_node,omitempty"`
 	HotplugSize    *int64  `json:"hotplug_size,omitempty"`
 	HotpluggedSize *int64  `json:"hotplugged_size,omitempty"`
+	Prefault       *bool   `json:"prefault,omitempty"`
 }
 
 // NewMemoryZoneConfig instantiates a new MemoryZoneConfig object
@@ -42,6 +43,8 @@ func NewMemoryZoneConfig(id string, size int64) *MemoryZoneConfig {
 	this.Shared = &shared
 	var hugepages bool = false
 	this.Hugepages = &hugepages
+	var prefault bool = false
+	this.Prefault = &prefault
 	return &this
 }
 
@@ -56,6 +59,8 @@ func NewMemoryZoneConfigWithDefaults() *MemoryZoneConfig {
 	this.Shared = &shared
 	var hugepages bool = false
 	this.Hugepages = &hugepages
+	var prefault bool = false
+	this.Prefault = &prefault
 	return &this
 }
 
@@ -363,6 +368,38 @@ func (o *MemoryZoneConfig) SetHotpluggedSize(v int64) {
 	o.HotpluggedSize = &v
 }
 
+// GetPrefault returns the Prefault field value if set, zero value otherwise.
+func (o *MemoryZoneConfig) GetPrefault() bool {
+	if o == nil || o.Prefault == nil {
+		var ret bool
+		return ret
+	}
+	return *o.Prefault
+}
+
+// GetPrefaultOk returns a tuple with the Prefault field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *MemoryZoneConfig) GetPrefaultOk() (*bool, bool) {
+	if o == nil || o.Prefault == nil {
+		return nil, false
+	}
+	return o.Prefault, true
+}
+
+// HasPrefault returns a boolean if a field has been set.
+func (o *MemoryZoneConfig) HasPrefault() bool {
+	if o != nil && o.Prefault != nil {
+		return true
+	}
+
+	return false
+}
+
+// SetPrefault gets a reference to the given bool and assigns it to the Prefault field.
+func (o *MemoryZoneConfig) SetPrefault(v bool) {
+	o.Prefault = &v
+}
+
 func (o MemoryZoneConfig) MarshalJSON() ([]byte, error) {
 	toSerialize := map[string]interface{}{}
 	if true {
@@ -395,6 +432,9 @@ func (o MemoryZoneConfig) MarshalJSON() ([]byte, error) {
 	if o.HotpluggedSize != nil {
 		toSerialize["hotplugged_size"] = o.HotpluggedSize
 	}
+	if o.Prefault != nil {
+		toSerialize["prefault"] = o.Prefault
+	}
 	return json.Marshal(toSerialize)
 }
 
diff --git a/src/runtime/virtcontainers/pkg/cloud-hypervisor/cloud-hypervisor.yaml b/src/runtime/virtcontainers/pkg/cloud-hypervisor/cloud-hypervisor.yaml
index 56f63a3be2..684f3cfaae 100644
--- a/src/runtime/virtcontainers/pkg/cloud-hypervisor/cloud-hypervisor.yaml
+++ b/src/runtime/virtcontainers/pkg/cloud-hypervisor/cloud-hypervisor.yaml
@@ -546,6 +546,9 @@ components:
         hotplugged_size:
           type: integer
           format: int64
+        prefault:
+          type: boolean
+          default: false
 
     MemoryConfig:
       required:
@@ -577,6 +580,9 @@ components:
         hugepage_size:
           type: integer
           format: int64
+        prefault:
+          type: boolean
+          default: false
         zones:
           type: array
           items: