acrn-config: refine vcpu affinity/number for SDC scenario

For SDC scenario, support kata vm would be triggered from webUI, and
will store the kata vm information to the scenario config file.
Then, vcpu affinity/number should be refined for vm1 and kata vm.

Note: with this patch, user should add/remove the kata vm in SDC
scenario webUI and its number should match MAX_KATA_VM_NUM in
hypervisor/arch/x86/Kconfig.

Tracked-On: #4145
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

misc/acrn-config/library/scenario_cfg_lib.py

@@ -10,7 +10,6 @@ HEADER_LICENSE = common.open_license()
 BOARD_INFO_FILE = "board_info.txt"
 SCENARIO_INFO_FILE = ""
 
-VM_COUNT = 0
 LOAD_ORDER_TYPE = ['PRE_LAUNCHED_VM', 'SOS_VM', 'POST_LAUNCHED_VM']
 START_HPA_LIST = ['0', '0x100000000', '0x120000000']
 
@@ -35,6 +34,16 @@ COMMUNICATE_VM_ID = []
 
 ERR_LIST = {}
 
+VM_COUNT = 0
+DEFAULT_VM_COUNT = {
+    'sdc':2,
+    'sdc2':4,
+    'industry':3,
+    'hybrid':3,
+    'logical_partition':2,
+}
+KATA_VM_COUNT = 0
+
 def prepare(check_git):
     """ Check environment """
     return common.check_env(check_git)

misc/acrn-config/scenario_config/scenario_cfg_gen.py

@@ -117,6 +117,13 @@ def main(args):
         scenario_cfg_lib.print_red("Validate the scenario item failue", err=True)
         return err_dic
 
+    # get kata vm count
+    if scenario != "logical_partition":
+        scenario_cfg_lib.KATA_VM_COUNT = scenario_cfg_lib.VM_COUNT - scenario_cfg_lib.DEFAULT_VM_COUNT[scenario]
+        if scenario_cfg_lib.KATA_VM_COUNT > 1:
+            err_dic['scenario config: kata vm count err'] = "Only one kata vm is supported!"
+            return err_dic
+
     # generate vm_configuration.h
     with open(vm_config_h, 'w') as config:
         vm_configurations_h.generate_file(scenario, vm_info, config)

misc/acrn-config/scenario_config/vm_configurations_c.py

@@ -219,7 +219,6 @@ def gen_sdc_source(vm_info, config):
     """
     uuid_0 = uuid2str(vm_info.uuid[0])
     uuid_1 = uuid2str(vm_info.uuid[1])
-    uuid_2 = uuid2str(vm_info.uuid[2])
 
     (err_dic, sos_guest_flags) = get_guest_flag(vm_info.guest_flag_idx[0])
     if err_dic:
@@ -264,13 +263,20 @@ def gen_sdc_source(vm_info, config):
     # UUID
     uuid_output(uuid_1, vm_info.uuid[1], config)
     is_need_epc(vm_info.epc_section, 1, config)
-    print("\t\t.vcpu_num = CONFIG_MAX_PCPU_NUM - CONFIG_MAX_KATA_VM_NUM - 1U,", file=config)
+
-    print("\t\t.vcpu_affinity = VM{}_CONFIG_VCPU_AFFINITY,".format(1), file=config)
+    vm1_id = 1
+    vm1_cpu_num = len(vm_info.cpus_per_vm[vm1_id])
+    print("\t\t.vcpu_num = {}U,".format(vm1_cpu_num), file=config)
+    print("\t\t.vcpu_affinity = VM{}_CONFIG_VCPU_AFFINITY,".format(vm1_id), file=config)
     # VUART
     err_dic = vuart_output(1, vm_info, config)
     if err_dic:
         return err_dic
+
     # VM2
+    if scenario_cfg_lib.KATA_VM_COUNT == 1:
+        # Setup Kata vm configurations if more than 3 VMs in SDC config file
+        uuid_2 = uuid2str(vm_info.uuid[2])
         print("#if CONFIG_MAX_KATA_VM_NUM > 0", file=config)
         print("\t{", file=config)
         print("\t\t.load_order = POST_LAUNCHED_VM,", file=config)
@@ -287,8 +293,8 @@ def gen_sdc_source(vm_info, config):
         print("\t\t}", file=config)
         print("\t},", file=config)
         print("#endif", file=config)
-    print("};", file=config)
 
+    print("};", file=config)
     return err_dic
 
 

misc/acrn-config/scenario_config/vm_configurations_h.py

@@ -44,8 +44,8 @@ def gen_sdc_header(vm_info, config):
     """
     gen_common_header(config)
     print("#include <misc_cfg.h>\n", file=config)
-    print("#define CONFIG_MAX_VM_NUM\t\t({0}U + CONFIG_MAX_KATA_VM_NUM)".format(
+
-        scenario_cfg_lib.VM_COUNT - 1), file=config)
+    print("#define CONFIG_MAX_VM_NUM\t\t(2U + CONFIG_MAX_KATA_VM_NUM)", file=config)
     print("", file=config)
     print("/* Bits mask of guest flags that can be programmed by device model." +
           " Other bits are set by hypervisor only */", file=config)
@@ -66,17 +66,23 @@ def gen_sdc_header(vm_info, config):
     print('\t\t\t\t\t"i915.domain_plane_owners=0x011111110000 " \\', file=config)
     print('\t\t\t\t\t"i915.enable_gvt=1 "\t\\', file=config)
     print("\t\t\t\t\tSOS_BOOTARGS_DIFF", file=config)
-
     print("", file=config)
-    print("#if CONFIG_MAX_KATA_VM_NUM > 0", file=config)
+
     # POST LAUNCHED VM
-    print("  #define VM1_CONFIG_VCPU_AFFINITY\t{AFFINITY_CPU(1U), AFFINITY_CPU(2U)}", file=config)
+    if scenario_cfg_lib.KATA_VM_COUNT == 1:
+        print("#if CONFIG_MAX_KATA_VM_NUM > 0", file=config)
+        # Set VM1 vcpu
+        cpu_affinity_output(vm_info, 1, config)
         # KATA VM
         cpu_affinity_output(vm_info, 2, config)
+        #else:
         print("#else", file=config)
-    for i in range(scenario_cfg_lib.VM_COUNT - 1):
+        # Only two VMs in SDC config, setup vcpu affinity for VM1
-        cpu_affinity_output(vm_info, i, config)
+        cpu_affinity_output(vm_info, 1, config)
         print("#endif", file=config)
+    else:
+        cpu_affinity_output(vm_info, 1, config)
+
     print("", file=config)
     print("{0}".format(VM_END_DEFINE), file=config)