diff --git a/misc/acrn-config/hv_config/board_defconfig.py b/misc/acrn-config/hv_config/board_defconfig.py
index 3806780ab..25d341587 100644
--- a/misc/acrn-config/hv_config/board_defconfig.py
+++ b/misc/acrn-config/hv_config/board_defconfig.py
@@ -18,8 +18,8 @@ VM_NUM_MAP_TOTAL_HV_RAM_SIZE = {
     2:0x7800000,
     # 150M
     3:0x9600000,
-    # 180M
-    4:0xB400000,
+    # 190M
+    4:0xBE00000,
     # 210M
     5:0xD200000,
     # 250M
diff --git a/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/cfl-k700-i7.config b/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/cfl-k700-i7.config
index 654c82813..9ffb8e8e7 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/cfl-k700-i7.config
+++ b/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/cfl-k700-i7.config
@@ -2,7 +2,7 @@
 
 CONFIG_BOARD="cfl-k700-i7"
 CONFIG_HV_RAM_START=0x11000000
-CONFIG_HV_RAM_SIZE=0x9800000
+CONFIG_HV_RAM_SIZE=0xc000000
 CONFIG_PLATFORM_RAM_SIZE=0x800000000
 CONFIG_LOW_RAM_SIZE=0x00010000
 CONFIG_SOS_RAM_SIZE=0x800000000
diff --git a/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/misc_cfg.h b/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/misc_cfg.h
index ccdb46d08..cd20d1383 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/misc_cfg.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/cfl-k700-i7/misc_cfg.h
@@ -21,12 +21,13 @@
 				"no_timer_check "	\
 				"hvlog=2M@0xe00000 "	\
 				"memmap=0x200000$0xe00000 "	\
-				"maxcpus=2"
+				"maxcpus=6"
 
-#define VM0_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(2U) | AFFINITY_CPU(3U))
+#define VM0_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(6U) | AFFINITY_CPU(7U))
 
-#define SOS_VM_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
-#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
+#define SOS_VM_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U) | AFFINITY_CPU(2U) | AFFINITY_CPU(3U) | AFFINITY_CPU(4U) | AFFINITY_CPU(5U))
+#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U) | AFFINITY_CPU(2U) | AFFINITY_CPU(3U))
+#define VM3_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(4U) | AFFINITY_CPU(5U))
 
 #ifdef CONFIG_RDT_ENABLED
 
diff --git a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/ehl-crb-b.config b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/ehl-crb-b.config
index 133db0a4e..163aee49a 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/ehl-crb-b.config
+++ b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/ehl-crb-b.config
@@ -2,7 +2,7 @@
 
 CONFIG_BOARD="ehl-crb-b"
 CONFIG_HV_RAM_START=0x11000000
-CONFIG_HV_RAM_SIZE=0x9800000
+CONFIG_HV_RAM_SIZE=0xc000000
 CONFIG_PLATFORM_RAM_SIZE=0x400000000
 CONFIG_LOW_RAM_SIZE=0x00010000
 CONFIG_SOS_RAM_SIZE=0x400000000
diff --git a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
index d54aa43c5..046cf399c 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
@@ -28,7 +28,8 @@
 #define VM0_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(2U) | AFFINITY_CPU(3U))
 
 #define SOS_VM_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
-#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
+#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
+#define VM3_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
 
 #ifdef CONFIG_RDT_ENABLED
 
@@ -71,7 +72,8 @@
 
 #define VM0_VCPU_CLOS			{0U}
 #define VM1_VCPU_CLOS			{0U}
-#define VM2_VCPU_CLOS			{0U}
+#define VM2_VCPU_CLOS			{0U, 0U}
+#define VM3_VCPU_CLOS			{0U}
 #endif
 
 #define VM0_CONFIG_PCI_DEV_NUM	4U
diff --git a/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.c b/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.c
index 1fcb0ae7e..db4547991 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.c
+++ b/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.c
@@ -121,4 +121,20 @@ struct acrn_vm_config vm_configs[CONFIG_MAX_VM_NUM] = {
 			.addr.port_base = INVALID_COM_BASE,
 		},
 	},
+	{	/* VM3 */
+		CONFIG_POST_STD_VM(2),
+#ifdef CONFIG_RDT_ENABLED
+		.clos = VM3_VCPU_CLOS,
+#endif
+		.cpu_affinity = VM3_CONFIG_CPU_AFFINITY,
+		.vuart[0] = {
+			.type = VUART_LEGACY_PIO,
+			.addr.port_base = COM1_BASE,
+			.irq = COM1_IRQ,
+		},
+		.vuart[1] = {
+			.type = VUART_LEGACY_PIO,
+			.addr.port_base = INVALID_COM_BASE,
+		},
+	},
 };
diff --git a/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.h b/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.h
index f2363ffd1..357002a59 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/vm_configurations.h
@@ -15,7 +15,7 @@
  */
 #define PRE_VM_NUM			1U
 #define SOS_VM_NUM			1U
-#define MAX_POST_VM_NUM			1U
+#define MAX_POST_VM_NUM			2U
 #define CONFIG_MAX_KATA_VM_NUM		0U
 
 /* Bits mask of guest flags that can be programmed by device model. Other bits are set by hypervisor only */
diff --git a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/misc_cfg.h b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/misc_cfg.h
index 8730b8e02..1c072b1bf 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/misc_cfg.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/misc_cfg.h
@@ -29,7 +29,8 @@
 #define VM0_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(2U) | AFFINITY_CPU(3U))
 
 #define SOS_VM_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
-#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
+#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
+#define VM3_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
 
 #ifdef CONFIG_RDT_ENABLED
 
diff --git a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/whl-ipc-i5.config b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/whl-ipc-i5.config
index 58412f5ed..3dc1370e1 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/whl-ipc-i5.config
+++ b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i5/whl-ipc-i5.config
@@ -2,7 +2,7 @@
 
 CONFIG_BOARD="whl-ipc-i5"
 CONFIG_HV_RAM_START=0x11000000
-CONFIG_HV_RAM_SIZE=0x9800000
+CONFIG_HV_RAM_SIZE=0xc000000
 CONFIG_PLATFORM_RAM_SIZE=0x400000000
 CONFIG_LOW_RAM_SIZE=0x00010000
 CONFIG_SOS_RAM_SIZE=0x400000000
diff --git a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/misc_cfg.h b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/misc_cfg.h
index 8730b8e02..1c072b1bf 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/misc_cfg.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/misc_cfg.h
@@ -29,7 +29,8 @@
 #define VM0_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(2U) | AFFINITY_CPU(3U))
 
 #define SOS_VM_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
-#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
+#define VM2_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(0U) | AFFINITY_CPU(1U))
+#define VM3_CONFIG_CPU_AFFINITY	(AFFINITY_CPU(1U))
 
 #ifdef CONFIG_RDT_ENABLED
 
diff --git a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/whl-ipc-i7.config b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/whl-ipc-i7.config
index c4400f182..67862bbf8 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/whl-ipc-i7.config
+++ b/misc/vm_configs/scenarios/hybrid_rt/whl-ipc-i7/whl-ipc-i7.config
@@ -2,7 +2,7 @@
 
 CONFIG_BOARD="whl-ipc-i7"
 CONFIG_HV_RAM_START=0x11000000
-CONFIG_HV_RAM_SIZE=0x9800000
+CONFIG_HV_RAM_SIZE=0xc000000
 CONFIG_PLATFORM_RAM_SIZE=0x400000000
 CONFIG_LOW_RAM_SIZE=0x00010000
 CONFIG_SOS_RAM_SIZE=0x400000000