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acrn-config: get default pci mmcfg base address

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parse default pci mmcfg base address from target board.

Tracked-On: #4173
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
This commit is contained in:
Wei Liu 2019-12-02 09:50:33 +08:00 committed by wenlingz
parent 0d998d6ac6
commit 0e273e996c
2 changed files with 25 additions and 0 deletions
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1
misc/acrn-config/board_config/acpi_platform_h.py
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@ -168,6 +168,7 @@ def platform_info_parser(config, default_platform):
write_direct_info_parser(config, "<WAKE_VECTOR_INFO>", "</WAKE_VECTOR_INFO>")
write_direct_info_parser(config, "<RESET_REGISTER_INFO>", "</RESET_REGISTER_INFO>")
drhd_info_parser(config)
write_direct_info_parser(config, "<MMCFG_BASE_INFO>", "</MMCFG_BASE_INFO>")
def generate_file(config, default_platform):

24
misc/acrn-config/target/acpi.py
View File

@ -115,6 +115,9 @@ DWORD_LEN = 4
PACK_TYPE_LEN = 12
WAKE_VECTOR_OFFSET_32 = 12
WAKE_VECTOR_OFFSET_64 = 24
MCFG_OFFSET = 4
MCFG_ENTRY1_OFFSET = 60
MCFG_ENTRY0_BASE_OFFSET = 44
S3_PKG = SxPkg()
S5_PKG = SxPkg()
@ -559,6 +562,23 @@ def store_px_data(sysnode, config):
p_cnt += 1
def store_mmcfg_base_data(mmcfg_node, config):
print("\t/* PCI mmcfg base of MCFG */", file=config)
with open(mmcfg_node, 'rb') as mmcfg:
mmcfg.read(MCFG_OFFSET)
mmcfg_len_obj = mmcfg.read(DWORD_LEN)
mmcfg_len_int = int.from_bytes(mmcfg_len_obj, 'little')
if mmcfg_len_int > MCFG_ENTRY1_OFFSET:
parser_lib.print_red("Multiple PCI segment groups is not supported!", err=True)
sys.exit(1)
mmcfg.seek(MCFG_ENTRY0_BASE_OFFSET, 0)
mmcfg_base_addr_obj = mmcfg.read(DWORD_LEN)
mmcfg_base_addr = int.from_bytes(mmcfg_base_addr_obj, 'little')
print("\t#define DEFAULT_PCI_MMCFG_BASE {}UL".format(hex(mmcfg_base_addr)), file=config)
def gen_acpi_info(config):
"""This will parser the sys node form SYS_PATH and generate ACPI info
@ -590,6 +610,10 @@ def gen_acpi_info(config):
store_px_data(SYS_PATH[2], config)
print("{0}".format("\t</PX_INFO>\n"), file=config)
print("{0}".format("\t<MMCFG_BASE_INFO>"), file=config)
store_mmcfg_base_data(SYS_PATH[1] + 'MCFG', config)
print("{0}".format("\t</MMCFG_BASE_INFO>\n"), file=config)
def generate_info(board_file):
"""This will generate ACPI info from board file