hv: tee: Support the concept of companion VM

Add a configuration to support companion VM.

Tracked-On: #6571
Signed-off-by: Jie Deng <jie.deng@intel.com>
Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>

hypervisor/include/arch/x86/asm/vm_config.h

@@ -156,6 +156,7 @@ struct acrn_vm_config {
 							 * We could add more guest flags in future;
 							 */
 	uint32_t vm_prio;				/* The priority for VM vCPU scheduling */
+	uint16_t companion_vm_id;			/* The companion VM id for this VM */
 	struct acrn_vm_mem_config memory;		/* memory configuration of VM */
 	struct epc_section epc;				/* EPC memory configuration of VM */
 	uint16_t pci_dev_num;				/* indicate how many PCI devices in VM */

misc/config_tools/schema/config.xsd

@@ -396,6 +396,11 @@ Refer SDM 17.19.2 for details, and use with caution.</xs:documentation>
         <xs:documentation>Specify the VM vCPU priority for scheduling.</xs:documentation>
       </xs:annotation>
     </xs:element>
+    <xs:element name="companion_vmid" type="xs:integer" default="65535">
+      <xs:annotation>
+        <xs:documentation>Specify the companion VM id of this VM.</xs:documentation>
+      </xs:annotation>
+    </xs:element>
     <xs:element name="os_config" type="OSConfigurations" minOccurs="0">
       <xs:annotation>
         <xs:documentation>General information for host kernel, boot

misc/config_tools/xforms/vm_configurations.c.xsl

@@ -88,6 +88,7 @@
       <xsl:value-of select="$newline" />
     </xsl:if>
     <xsl:value-of select="acrn:initializer('vm_prio', priority)" />
+    <xsl:value-of select="acrn:initializer('companion_vm_id', concat(companion_vmid, 'U'))" />
     <xsl:apply-templates select="guest_flags" />
 
     <xsl:if test="acrn:is-rdt-enabled()">