acrn-config/hv: create new file pt_intx_c.py to generate the pt_intx.c file

Move struct pt_intx_config vm0_pt_intx[] defintion to pt_intx.c
so that vm_configurations.h/vm_configurations.c are consistent for different boards

Tracked-On: #5229
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>

hypervisor/Makefile

@@ -268,6 +268,7 @@ HW_C_SRCS += boot/guest/direct_boot.c
 # VM Configuration
 VM_CFG_C_SRCS += $(BOARD_INFO_DIR)/board.c
 VM_CFG_C_SRCS += $(SCENARIO_CFG_DIR)/vm_configurations.c
+VM_CFG_C_SRCS += $(BOARD_CFG_DIR)/pt_intx.c
 ifneq (,$(wildcard $(BOARD_CFG_DIR)/pci_dev.c))
 VM_CFG_C_SRCS += $(BOARD_CFG_DIR)/pci_dev.c
 endif

misc/acrn-config/board_config/misc_cfg_h.py

@@ -231,6 +231,20 @@ def boot_args_per_vm_gen(config):
     print("", file=config)
 
 
+def pt_intx_num_vm0_gen(config):
+
+    phys_gsi, virt_gsi = common.get_pt_intx_table(common.SCENARIO_INFO_FILE)
+
+    if (board_cfg_lib.is_matched_board(("ehl-crb-b"))
+        and phys_gsi.get(0) is not None
+        and len(phys_gsi[0]) > 0):
+        print("#define VM0_PT_INTX_NUM\t{}U".format(len(phys_gsi[0])), file=config)
+    else:
+        print("#define VM0_PT_INTX_NUM\t0U", file=config)
+
+    print("", file=config)
+
+
 def generate_file(config):
     """
     Start to generate board.c
@@ -400,6 +414,8 @@ def generate_file(config):
 
     boot_args_per_vm_gen(config)
 
+    pt_intx_num_vm0_gen(config)
+
     print("{}".format(MISC_CFG_END), file=config)
 
     return err_dic

misc/acrn-config/library/common.py

@@ -9,6 +9,7 @@ import getopt
 import shutil
 import subprocess
 import xml.etree.ElementTree as ET
+import re
 
 
 ACRN_CONFIG_TARGET = ''
@@ -560,3 +561,38 @@ def str2int(x):
         return int(s, base)
 
     return 0
+
+
+def get_pt_intx_table(config_file):
+    pt_intx_map = get_leaf_tag_map(config_file, "pt_intx")
+
+    # translation table to normalize the paired phys_gsi and virt_gsi string
+    table = {ord('[') : ord('('), ord(']') : ord(')'), ord('{') : ord('('),
+        ord('}') : ord(')'), ord(';') : ord(','),
+        ord('\n') : None, ord('\r') : None, ord(' ') : None}
+
+    phys_gsi = {}
+    virt_gsi = {}
+
+    for vm_i, s in pt_intx_map.items():
+        #normalize the phys_gsi and virt_gsi pair string
+        s = s.translate(table)
+
+        #extract the phys_gsi and virt_gsi pairs between parenthesis to a list
+        s = re.findall(r'\(([^)]+)', s)
+
+        phys_gsi[vm_i] = [];
+        virt_gsi[vm_i] = [];
+
+        for part in s:
+            if not part: continue
+            assert ',' in part, "you need to use ',' to separate phys_gsi and virt_gsi!"
+            a, b = part.split(',')
+            if not a and not b: continue
+            assert a and b, "you need to specify both phys_gsi and virt_gsi!"
+            a, b = str2int(a), str2int(b)
+
+            phys_gsi[vm_i].append(a)
+            virt_gsi[vm_i].append(b)
+
+    return phys_gsi, virt_gsi

misc/acrn-config/scenario_config/pt_intx_c.py

@@ -0,0 +1,38 @@
+# Copyright (C) 2020 Intel Corporation. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+import common
+import scenario_cfg_lib
+import board_cfg_lib
+
+
+def generate_file(vm_info, config):
+    """
+    Generate pt_intx.c for Pre-Launched VMs in a scenario.
+    :param config: it is pointer for for file write to
+    :return: None
+    """
+
+    print("{}".format(scenario_cfg_lib.HEADER_LICENSE), file=config)
+    print("", file=config)
+    print("#include <vm_config.h>", file=config)
+    print("", file=config)
+
+    if (board_cfg_lib.is_matched_board(("ehl-crb-b"))
+        and vm_info.pt_intx_info.phys_gsi.get(0) is not None
+        and len(vm_info.pt_intx_info.phys_gsi[0]) > 0):
+
+        print("struct pt_intx_config vm0_pt_intx[{}U] = {{".format(len(vm_info.pt_intx_info.phys_gsi[0])), file=config)
+        for i, (p_pin, v_pin) in enumerate(zip(vm_info.pt_intx_info.phys_gsi[0], vm_info.pt_intx_info.virt_gsi[0])):
+            print("\t[{}U] = {{".format(i), file=config)
+            print("\t\t.phys_gsi = {}U,".format(p_pin), file=config)
+            print("\t\t.virt_gsi = {}U,".format(v_pin), file=config)
+            print("\t},", file=config)
+
+        print("};", file=config)
+    else:
+        print("struct pt_intx_config vm0_pt_intx[1U];", file=config)
+
+    print("", file=config)

misc/acrn-config/scenario_config/scenario_cfg_gen.py

@@ -15,6 +15,7 @@ import scenario_cfg_lib
 import vm_configurations_c
 import vm_configurations_h
 import pci_dev_c
+import pt_intx_c
 import ivshmem_cfg_h
 import common
 import hv_cfg_lib
@@ -24,7 +25,7 @@ import asl_gen
 
 ACRN_PATH = common.SOURCE_ROOT_DIR
 ACRN_CONFIG_DEF = ACRN_PATH + 'misc/vm_configs/scenarios/'
-GEN_FILE = ["vm_configurations.h", "vm_configurations.c", "pci_dev.c", ".config", "ivshmem_cfg.h"]
+GEN_FILE = ["vm_configurations.h", "vm_configurations.c", "pci_dev.c", ".config", "ivshmem_cfg.h", "pt_intx.c"]
 
 
 def get_scenario_item_values(board_info, scenario_info):
@@ -171,6 +172,7 @@ def main(args):
     pci_config_c = scen_board + GEN_FILE[2]
     config_hv = scen_board + board_name + GEN_FILE[3]
     ivshmem_config_h = scen_board + GEN_FILE[4]
+    pt_intx_config_c = scen_board + GEN_FILE[5]
 
     # parse the scenario.xml
     get_scenario_item_values(params['--board'], params['--scenario'])
@@ -203,6 +205,11 @@ def main(args):
     with open(pci_config_c, 'w') as config:
         pci_dev_c.generate_file(scenario_items['vm'], config)
 
+    # generate pt_intx.c
+    with open(pt_intx_config_c, 'w') as config:
+        pt_intx_c.generate_file(scenario_items['vm'], config)
+
+
     # generate ASL code of ACPI tables for Pre-launched VMs
     asl_gen.main(args)
 

misc/acrn-config/scenario_config/scenario_item.py

@@ -6,7 +6,6 @@
 import common
 import board_cfg_lib
 import scenario_cfg_lib
-import re
 
 class HwInfo:
     """ This is Abstract of class of Hardware information """
@@ -309,34 +308,7 @@ class PtIntxInfo:
         Get all items which belong to this class
         :return: None
         """
-        pt_intx_map = common.get_leaf_tag_map(self.scenario_info, "pt_intx")
-
-        # translation table to normalize the paired phys_gsi and virt_gsi string
-        table = {ord('[') : ord('('), ord(']') : ord(')'), ord('{') : ord('('),
-            ord('}') : ord(')'), ord(';') : ord(','),
-            ord('\n') : None, ord('\r') : None, ord(' ') : None}
-
-        for vm_i, s in pt_intx_map.items():
-            #normalize the phys_gsi and virt_gsi pair string
-            s = s.translate(table)
-
-            #extract the phys_gsi and virt_gsi pairs between parenthesis to a list
-            s = re.findall(r'\(([^)]+)', s)
-
-            self.phys_gsi[vm_i] = [];
-            self.virt_gsi[vm_i] = [];
-
-            for part in s:
-                if not part: continue
-                assert ',' in part, "you need to use ',' to separate phys_gsi and virt_gsi!"
-                a, b = part.split(',')
-                if not a and not b: continue
-                assert a and b, "you need to specify both phys_gsi and virt_gsi!"
-                a, b = common.str2int(a), common.str2int(b)
-
-                self.phys_gsi[vm_i].append(a)
-                self.virt_gsi[vm_i].append(b)
-
+        self.phys_gsi, self.virt_gsi = common.get_pt_intx_table(self.scenario_info)
 
     def check_item(self):
         """

misc/acrn-config/scenario_config/vm_configurations_c.py

@@ -347,10 +347,8 @@ def gen_pre_launch_vm(vm_type, vm_i, scenario_items, config):
         print("\t\t},", file=config)
         print("#endif", file=config)
 
-    if (vm_i == 0 and board_cfg_lib.is_matched_board(("ehl-crb-b"))
-        and vm_info.pt_intx_info.phys_gsi.get(vm_i) is not None
-        and len(vm_info.pt_intx_info.phys_gsi[vm_i]) > 0):
-        print("\t\t.pt_intx_num = {}U,".format(len(vm_info.pt_intx_info.phys_gsi[vm_i])), file=config)
+    if vm_i == 0:
+        print("\t\t.pt_intx_num = VM0_PT_INTX_NUM,", file=config)
         print("\t\t.pt_intx = &vm0_pt_intx[0U],", file=config)
 
     print("\t},", file=config)
@@ -415,16 +413,11 @@ def generate_file(scenario_items, config):
     if (board_cfg_lib.is_matched_board(("ehl-crb-b"))
         and vm_info.pt_intx_info.phys_gsi.get(0) is not None
         and len(vm_info.pt_intx_info.phys_gsi[0]) > 0):
+        print("extern struct pt_intx_config vm0_pt_intx[{}U];".format(len(vm_info.pt_intx_info.phys_gsi[0])), file=config)
+    else:
+        print("extern struct pt_intx_config vm0_pt_intx[1U];", file=config)
 
-        print("static struct pt_intx_config vm0_pt_intx[{}U] = {{".format(len(vm_info.pt_intx_info.phys_gsi[0])), file=config)
-        for i, (p_pin, v_pin) in enumerate(zip(vm_info.pt_intx_info.phys_gsi[0], vm_info.pt_intx_info.virt_gsi[0])):
-            print("\t[{}U] = {{".format(i), file=config)
-            print("\t\t.phys_gsi = {}U,".format(p_pin), file=config)
-            print("\t\t.virt_gsi = {}U,".format(v_pin), file=config)
-            print("\t},", file=config)
-
-        print("};", file=config)
-        print("", file=config)
+    print("", file=config)
 
     print("struct acrn_vm_config vm_configs[CONFIG_MAX_VM_NUM] = {", file=config)
     for vm_i, vm_type in common.VM_TYPES.items():

misc/hv_prebuild/Makefile

@@ -27,6 +27,7 @@ PRE_BUILD_SRCS += static_checks.c
 PRE_BUILD_SRCS += vm_cfg_checks.c
 PRE_BUILD_SRCS += $(HV_SRC_DIR)/arch/x86/configs/vm_config.c
 PRE_BUILD_SRCS += $(SCENARIO_CFG_DIR)/vm_configurations.c
+PRE_BUILD_SRCS += $(BOARD_CFG_DIR)/pt_intx.c
 ifneq (,$(wildcard $(BOARD_CFG_DIR)/pci_dev.c))
 PRE_BUILD_SRCS += $(BOARD_CFG_DIR)/pci_dev.c
 endif