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config-tools: get GPU_SBDF automatically

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Get the integrated GPU bdf by looking for device from board.xml and extract the
BDF from device address.

Tracked-On: #6855
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
This commit is contained in:
Yang,Yu-chu
2021-11-15 15:11:14 -08:00
committed by wenlingz
parent 93d4e92273
commit 68136b7f7a
4 changed files with 18 additions and 25 deletions
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16
misc/config_tools/static_allocators/bdf.py
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@@ -119,7 +119,23 @@ def create_device_node(allocation_etree, vm_id, devdict):
if common.get_node(f"./func", dev_node) is None:
common.append_node(f"./func", f"{bdf.func:#04x}", dev_node)
def create_gpu_sbdf(board_etree, allocation_etree):
"""
Extract the integrated GPU bdf from board.xml. If the device is not present, set bdf to "0xFFFF" which indicates the device
doesn't exist.
"""
bus = "0x0"
device_node = common.get_node(f"//bus[@type='pci' and @address='{bus}']/device[vendor='0x8086' and class='0x030000']", board_etree)
if device_node is None:
common.append_node("/acrn-config/hv/MISC_CFG/GPU_SBDF", '0xFFFF', allocation_etree)
else:
address = device_node.get('address')
dev = int(address, 16) >> 16
func = int(address, 16) & 0xffff
common.append_node("/acrn-config/hv/MISC_CFG/GPU_SBDF", f"{(int(bus, 16) << 8) | (dev << 3) | func:#06x}", allocation_etree)
def fn(board_etree, scenario_etree, allocation_etree):
create_gpu_sbdf(board_etree, allocation_etree)
vm_nodes = scenario_etree.xpath("//vm")
for vm_node in vm_nodes:
vm_id = vm_node.get('id')