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config-tools: reserve the secondary PCI bus mmio windows 

Prevent allocator to allocate PCI bus mmio windows to other devices.

Tracked-On: #8191
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Yang,Yu-chu 2022-09-21 14:34:48 -07:00 committed by acrnsi-robot
parent bef352481f
commit 3d8ea54f74
1 changed files with 24 additions and 8 deletions
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32
misc/config_tools/static_allocators/gpa.py
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@ -109,6 +109,13 @@ class AddrWindow(namedtuple(
return False
return True
def contains(self, other):
if not isinstance(other, AddrWindow):
raise TypeError('contains() other must be an AddrWindow: {}'.format(type(other)))
if other.start >= self.start and other.end <= self.end:
return True
return False
def insert_vuart_to_dev_dict(scenario_etree, vm_id, devdict_32bits):
console_vuart = scenario_etree.xpath(f"./console_vuart[base != 'INVALID_PCI_BASE']/@id")
@ -223,18 +230,27 @@ def insert_vmsix_to_dev_dict(pt_dev_node, devdict):
devdict[(f"{dev_name}", f"bar{next_bar_region}")] = VMSIX_VBAR_SIZE
def get_devs_mem_native(board_etree, mems):
nodes = board_etree.xpath(f"//resource[@type = 'memory' and @len != '0x0' and @id and @width]")
nodes = board_etree.xpath(f"//resource[@type = 'memory' and @len != '0x0' and @id and @width and @min and @max]")
secondary_pci_nodes = board_etree.xpath(f"//resource[../bus[@type = 'pci'] and @type = 'memory' and @len != '0x0' and @min and @max]")
secondary_pci_windows = [AddrWindow(int(node.get('min'), 16), int(node.get('max'), 16)) for node in secondary_pci_nodes]
dev_list = []
for node in nodes:
start = node.get('min')
end = node.get('max')
if start is not None and end is not None:
window = AddrWindow(int(start, 16), int(end, 16))
for mem in mems:
if window.start >= mem.start and window.end <= mem.end:
dev_list.append(window)
break
return sorted(dev_list)
node_window = AddrWindow(int(start, 16), int(end, 16))
if all(not(w.contains(node_window)) for w in secondary_pci_windows):
dev_list.append(node_window)
# check if there is any nested window
for i in range(len(secondary_pci_windows)):
secondary_pci_window = secondary_pci_windows[i]
if all(not(w.contains(secondary_pci_window)) for w in (secondary_pci_windows[:i] + secondary_pci_windows[i + 1:])):
dev_list.append(secondary_pci_window)
# check if all the mmio window of dev_list fall into pci hole
return_dev_list = [d for d in dev_list if any(mem.contains(d) for mem in mems)]
return sorted(return_dev_list)
def get_devs_io_port_native(board_etree, io_port_range):
nodes = board_etree.xpath(f"//device/resource[@type = 'io_port' and @len != '0x0' and @id]")