acrn-config: add 'cpu_sharing' support for launch config

Add support to parse and get 'cpu_sharing' item value
from launch config files, these values are editable by user.

Tracked-On: #3854
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

Author: Wei Liu

misc/acrn-config/launch_config/com.py

@@ -382,7 +382,8 @@ def launch_end(names, args, virt_io, vmid, config):
             print("", file=config)
             i += 1
 
-    off_line_cpus(args, vmid, uos_type, config)
+    if args['cpu_sharing'][vmid] == "Disabled":
+        off_line_cpus(args, vmid, uos_type, config)
 
     uos_launch(names, args, virt_io, vmid, config)
 

misc/acrn-config/launch_config/launch_cfg_gen.py

@@ -46,6 +46,7 @@ def get_launch_item_values(board_info):
 
     launch_item_values["uos,vbootloader"] = launch_cfg_lib.BOOT_TYPE
     launch_item_values['uos,vuart0'] = launch_cfg_lib.DM_VUART0
+    launch_item_values['uos,cpu_sharing'] = launch_cfg_lib.CPU_SHARING
     launch_item_values['uos,poweroff_channel'] = launch_cfg_lib.PM_CHANNEL
 
     return launch_item_values

misc/acrn-config/launch_config/launch_item.py

@@ -20,6 +20,7 @@ def get_args(self):
         self.args["gvt_args"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "gvt_args")
         self.args["vbootloader"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "vbootloader")
         self.args["vuart0"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "vuart0")
+        self.args["cpu_sharing"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "cpu_sharing")
         self.args["pm_channel"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "poweroff_channel")
         self.args["off_pcpus"] = launch_cfg_lib.get_leaf_tag_map(self.scenario_info, "vcpu_affinity", "pcpu_id")
         self.args["xhci"] = launch_cfg_lib.get_leaf_tag_map(self.launch_info, "usb_xhci")
@@ -31,6 +32,7 @@ def check_item(self):
         launch_cfg_lib.mem_size_check(self.args["mem_size"], "mem_size")
         launch_cfg_lib.args_aval_check(self.args["vbootloader"], "vbootloader", launch_cfg_lib.BOOT_TYPE)
         launch_cfg_lib.args_aval_check(self.args["vuart0"], "vuart0", launch_cfg_lib.DM_VUART0)
+        launch_cfg_lib.cpu_sharing_check(self.args["cpu_sharing"], "cpu_sharing")
 
 
 class AvailablePthru():

misc/acrn-config/library/launch_cfg_lib.py

@@ -16,6 +16,7 @@
 BOOT_TYPE = ['no', 'vsbl', 'ovmf']
 RTOS_TYPE = ['no', 'Soft RT', 'Hard RT']
 DM_VUART0 = ['Disable', 'Enable']
+CPU_SHARING = ['Disabled', 'Enabled']
 UOS_TYPES = ['CLEARLINUX', 'ANDROID', 'ALIOS', 'PREEMPT-RT LINUX', 'VXWORKS', 'WINDOWS', 'ZEPHYR', 'GENERIC LINUX']
 
 PT_SUB_PCI = {}
@@ -643,3 +644,42 @@ def check_block_mount(virtio_blk_dic):
                 mount_flags.append(False)
 
         MOUNT_FLAG_DIC[vmid] = mount_flags
+
+
+def cpu_sharing_check(cpu_sharing, item):
+    """
+    Check cpu sharing status with cpu affinity setting
+    :param cpu_share_status:
+    :param item:
+    :return: None
+    """
+    use_cpus = []
+    use_same_cpu = False
+    vm_cpu_share = []
+    vm_cpu_share_consistent = True
+
+    cpu_affinity = get_leaf_tag_map(SCENARIO_INFO_FILE, "vcpu_affinity", "pcpu_id")
+    for vm_i in cpu_affinity.keys():
+        for cpu in cpu_affinity[vm_i]:
+            if cpu in use_cpus:
+                use_same_cpu = True
+            else:
+                use_cpus.append(cpu)
+
+    for vm_i in cpu_sharing.keys():
+        cpu_share = cpu_sharing[vm_i]
+        stat_len = len(vm_cpu_share)
+        if stat_len != 0 and cpu_share not in vm_cpu_share:
+            vm_cpu_share_consistent = False
+        else:
+            vm_cpu_share.append(cpu_share)
+
+        if not vm_cpu_share_consistent:
+            key = "uos:id={},{}".format(vm_i, item)
+            ERR_LIST[key] = "CPU sharing for all VMs should be consistent to 'Disabled' or 'Enabled'"
+            return
+
+        if cpu_sharing[vm_i] == "Disabled" and use_same_cpu:
+            key = "uos:id={},{}".format(vm_i, item)
+            ERR_LIST[key] = "The same pcpu was configurated in scenario config, and not allow to set the cpu_sharing to 'Disabled'!"
+            return