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acrn-config: find 64-bit mmio for HI_MMIO_START/HI_MMIO_END

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Find the 64-bit mmio window from /proc/iomem to generate HI_MMIO_START/HI_MMIO_END.

Tracked-On: #4569
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
Acked-by: Terry Zou <terry.zou@intel.com>
This commit is contained in:
Wei Liu 2020-03-27 17:15:06 +08:00 committed by wenlingz
parent d9d50461ba
commit d18fd5f844
1 changed files with 45 additions and 0 deletions
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45
misc/acrn-config/board_config/misc_cfg_h.py
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@ -70,6 +70,47 @@ def parse_boot_info():
return (err_dic, sos_cmdlines, sos_rootfs, vuart0_dic, vuart1_dic, vm_types)
def find_hi_mmio_window(config):
i_cnt = 0
mmio_min = 0
mmio_max = 0
is_hi_mmio = False
iomem_lines = board_cfg_lib.get_info(board_cfg_lib.BOARD_INFO_FILE, "<IOMEM_INFO>", "</IOMEM_INFO>")
for line in iomem_lines:
if "PCI Bus" not in line:
continue
line_start_addr = int(line.split('-')[0], 16)
line_end_addr = int(line.split('-')[1].split()[0], 16)
if line_start_addr < board_cfg_lib.SIZE_4G and line_end_addr < board_cfg_lib.SIZE_4G:
continue
elif line_start_addr < board_cfg_lib.SIZE_4G and line_end_addr >= board_cfg_lib.SIZE_4G:
i_cnt += 1
is_hi_mmio = True
mmio_min = board_cfg_lib.SIZE_4G
mmio_max = line_end_addr
continue
is_hi_mmio = True
if i_cnt == 0:
mmio_min = line_start_addr
mmio_max = line_end_addr
if mmio_max < line_end_addr:
mmio_max = line_end_addr
i_cnt += 1
print("", file=config)
if is_hi_mmio:
print("#define HI_MMIO_START\t\t0x%xUL" % mmio_min, file=config)
print("#define HI_MMIO_END\t\t0x%xUL" % mmio_max, file=config)
else:
print("#define HI_MMIO_START\t\t~0UL", file=config)
print("#define HI_MMIO_END\t\t0UL", file=config)
def generate_file(config):
"""
Start to generate board.c
@ -171,6 +212,10 @@ def generate_file(config):
print("#define MAX_HIDDEN_PDEVS_NUM {}U".format(len(board_cfg_lib.KNOWN_HIDDEN_PDEVS_BOARD_DB[board_cfg_lib.BOARD_NAME])), file=config)
else:
print("#define MAX_HIDDEN_PDEVS_NUM 0U", file=config)
# generate HI_MMIO_START/HI_MMIO_END
find_hi_mmio_window(config)
print("", file=config)
print("{}".format(MISC_CFG_END), file=config)