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| 1 | +# Copyright (c) Microsoft Corporation. |
| 2 | +# Licensed under the MIT license. |
| 3 | +# Refer: https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/deploy/deploying-graphics-devices-using-dda # noqa E501 |
| 4 | +import re |
| 5 | +from typing import Dict, List, Optional |
| 6 | + |
| 7 | +from lisa.node import Node |
| 8 | +from lisa.tools import PowerShell |
| 9 | +from lisa.util import LisaException, find_group_in_lines, find_groups_in_lines |
| 10 | +from lisa.util.logger import Logger |
| 11 | + |
| 12 | +from .schema import DeviceAddressSchema |
| 13 | + |
| 14 | + |
| 15 | +class HypervAssignableDevices: |
| 16 | + PKEY_DEVICE_TYPE = "{3AB22E31-8264-4b4e-9AF5-A8D2D8E33E62} 1" |
| 17 | + PKEY_BASE_CLASS = "{3AB22E31-8264-4b4e-9AF5-A8D2D8E33E62} 3" |
| 18 | + PKEY_REQUIRES_RESERVED_MEMORY_REGION = "{3AB22E31-8264-4b4e-9AF5-A8D2D8E33E62} 34" # noqa E501 |
| 19 | + PKEY_ACS_COMPATIBLE_UP_HIERARCHY = "{3AB22E31-8264-4b4e-9AF5-A8D2D8E33E62} 31" # noqa E501 |
| 20 | + PROP_DEVICE_TYPE_PCI_EXPRESS_ENDPOINT = "2" |
| 21 | + PROP_DEVICE_TYPE_PCI_EXPRESS_LEGACY_ENDPOINT = "3" |
| 22 | + PROP_DEVICE_TYPE_PCI_EXPRESS_ROOT_COMPLEX_INTEGRATED_ENDPOINT = "4" |
| 23 | + PROP_DEVICE_TYPE_PCI_EXPRESS_TREATED_AS_PCI = "5" |
| 24 | + PROP_ACS_COMPATIBLE_UP_HIERARCHY_NOT_SUPPORTED = "0" |
| 25 | + PROP_BASE_CLASS_DISPLAY_CTRL = "3" |
| 26 | + |
| 27 | + def __init__(self, host_node: Node, log: Logger): |
| 28 | + self.host_node = host_node |
| 29 | + self.log = log |
| 30 | + self.pwsh = self.host_node.tools[PowerShell] |
| 31 | + self.pnp_allocated_resources: List[Dict[str, str]] = ( |
| 32 | + self.__load_pnp_allocated_resources() |
| 33 | + ) |
| 34 | + |
| 35 | + def get_assignable_devices( |
| 36 | + self, |
| 37 | + vendor_id: str, |
| 38 | + device_id: str, |
| 39 | + ) -> List[DeviceAddressSchema]: |
| 40 | + device_id_list = self.__get_devices_by_vendor_device_id( |
| 41 | + vendor_id=vendor_id, device_id=device_id |
| 42 | + ) |
| 43 | + |
| 44 | + devices: List[DeviceAddressSchema] = [] |
| 45 | + for rec in device_id_list: |
| 46 | + device_id = rec["device_id"] |
| 47 | + result = self.__get_dda_properties(device_id=device_id) |
| 48 | + if result: |
| 49 | + result.friendly_name = rec["friendly_name"] |
| 50 | + devices.append(result) |
| 51 | + return devices |
| 52 | + |
| 53 | + def __get_devices_by_vendor_device_id( |
| 54 | + self, |
| 55 | + vendor_id: str, |
| 56 | + device_id: str, |
| 57 | + ) -> List[Dict[str, str]]: |
| 58 | + """ |
| 59 | + Get the device ID list for given vendor/device ID combination |
| 60 | + """ |
| 61 | + devices: List[Dict[str, str]] = [] |
| 62 | + device_regex = re.compile( |
| 63 | + r"Description\s+:\s*(?P<desc>.+)\n.*DeviceID\s+:\s*(?P<device_id>.+)" |
| 64 | + ) |
| 65 | + |
| 66 | + cmd = ( |
| 67 | + "Get-WmiObject Win32_PnPEntity -Filter " |
| 68 | + f"\"DeviceID LIKE 'PCI\\\\VEN_{vendor_id}&DEV_{device_id}%'\"" |
| 69 | + ) |
| 70 | + stdout = self.pwsh.run_cmdlet( |
| 71 | + cmdlet=cmd, |
| 72 | + force_run=True, |
| 73 | + sudo=True, |
| 74 | + ) |
| 75 | + |
| 76 | + devices_str = stdout.strip().split("\r\n\r\n") |
| 77 | + filtered_devices = [i.strip() for i in devices_str if i.strip() != ""] |
| 78 | + for device_properties in filtered_devices: |
| 79 | + res = find_group_in_lines( |
| 80 | + lines=device_properties, |
| 81 | + pattern=device_regex, |
| 82 | + single_line=False, |
| 83 | + ) |
| 84 | + if not res: |
| 85 | + raise LisaException("Can not extract DeviceId/Description") |
| 86 | + |
| 87 | + devices.append({ |
| 88 | + "device_id": res["device_id"].strip(), |
| 89 | + "friendly_name": res["desc"].strip(), |
| 90 | + }) |
| 91 | + return devices |
| 92 | + |
| 93 | + def __get_pnp_device_property(self, device_id: str, property_name: str) -> str: |
| 94 | + """ |
| 95 | + Retrieve a PnP device property by instance ID and property key. |
| 96 | + """ |
| 97 | + cmd = ( |
| 98 | + "(Get-PnpDeviceProperty -InstanceId " |
| 99 | + f"'{device_id}' '{property_name}').Data" |
| 100 | + ) |
| 101 | + |
| 102 | + output = self.pwsh.run_cmdlet( |
| 103 | + cmdlet=cmd, |
| 104 | + sudo=True, |
| 105 | + force_run=True, |
| 106 | + ) |
| 107 | + return output.strip() |
| 108 | + |
| 109 | + def __load_pnp_allocated_resources(self) -> List[Dict[str, str]]: |
| 110 | + # Command output result (just 2 device properties) |
| 111 | + # ======================================================== |
| 112 | + # __GENUS : 2 |
| 113 | + # __CLASS : Win32_PNPAllocatedResource |
| 114 | + # __SUPERCLASS : CIM_AllocatedResource |
| 115 | + # __DYNASTY : CIM_Dependency |
| 116 | + # __RELPATH : Win32_PNPAllocatedResource.Antecedent="\\\\WIN-2IDCNC2D5V |
| 117 | + # C\\root\\cimv2:Win32_DeviceMemoryAddress.StartingAddress=\ |
| 118 | + # "2463203328\"",Dependent="\\\\WIN-2IDCNC2D5VC\\root\\cimv2: |
| 119 | + # Win32_PnPEntity.DeviceID=\"PCI\\\\VEN_8086&DEV_A1A3& |
| 120 | + # SUBSYS_07161028&REV_09\\\\3&11583659&0&FC\"" |
| 121 | + # __PROPERTY_COUNT : 2 |
| 122 | + # __DERIVATION : {CIM_AllocatedResource, CIM_Dependency} |
| 123 | + # __SERVER : WIN-2IDCNC2D5VC |
| 124 | + # __NAMESPACE : root\cimv2 |
| 125 | + # __PATH : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_PNPAllocatedResource. |
| 126 | + # Antecedent="\\\\WIN-2IDCNC2D5VC\\root\\cimv2:Win32_ |
| 127 | + # DeviceMemoryAddress.StartingAddress=\"2463203328\"", |
| 128 | + # Dependent="\\\\WIN-2IDCNC2D5VC\\root\\cimv2:Win32_PnP |
| 129 | + # Entity.DeviceID=\"PCI\\\\VEN_8086&DEV_A1A3&SUBSYS_07161028& |
| 130 | + # REV_09\\\\3&11583659&0&FC\"" |
| 131 | + # Antecedent : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_DeviceMemoryAddress. |
| 132 | + # StartingAddress="2463203328" |
| 133 | + # Dependent : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_PnPEntity.DeviceID= |
| 134 | + # "PCI\\VEN_8086&DEV_A1A3&SUBSYS_07161028&REV_09\\3 |
| 135 | + # &11583659&0&FC" |
| 136 | + # PSComputerName : WIN-2IDCNC2D5VC |
| 137 | + |
| 138 | + # __GENUS : 2 |
| 139 | + # __CLASS : Win32_PNPAllocatedResource |
| 140 | + # __SUPERCLASS : CIM_AllocatedResource |
| 141 | + # __DYNASTY : CIM_Dependency |
| 142 | + # __RELPATH : Win32_PNPAllocatedResource.Antecedent="\\\\WIN-2IDCNC2D5VC |
| 143 | + # \\root\\cimv2:Win32_PortResource.StartingAddress=\"8192\"", |
| 144 | + # Dependent="\\\\WIN-2IDCNC2D5VC\\root\\cimv2:Win32_PnPEntity |
| 145 | + # .DeviceID=\"PCI\\\\VEN_8086&DEV_A1A3&SUBSYS_07161028&REV_09 |
| 146 | + # \\\\3&11583659&0&FC\"" |
| 147 | + # __PROPERTY_COUNT : 2 |
| 148 | + # __DERIVATION : {CIM_AllocatedResource, CIM_Dependency} |
| 149 | + # __SERVER : WIN-2IDCNC2D5VC |
| 150 | + # __NAMESPACE : root\cimv2 |
| 151 | + # __PATH : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_PNPAllocatedResource. |
| 152 | + # Antecedent="\\\\WIN-2IDCNC2D5VC\\root\\cimv2:Win32_PortR |
| 153 | + # esource.StartingAddress=\"8192\"",Dependent="\\\\WIN-2ID |
| 154 | + # CNC2D5VC\\root\\cimv2:Win32_PnPEntity.DeviceID=\"PCI\\\\ |
| 155 | + # VEN_8086&DEV_A1A3&SUBSYS_07161028&REV_09\\\\3&11 |
| 156 | + # 583659&0&FC\"" |
| 157 | + # Antecedent : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_PortResource. |
| 158 | + # StartingAddress="8192" |
| 159 | + # Dependent : \\WIN-2IDCNC2D5VC\root\cimv2:Win32_PnPEntity.DeviceID= |
| 160 | + # "PCI\\VEN_8086&DEV_A1A3&SUBSYS_07161028&REV_09\\3& |
| 161 | + # 11583659&0&FC" |
| 162 | + # PSComputerName : WIN-2IDCNC2D5VC |
| 163 | + |
| 164 | + stdout = self.pwsh.run_cmdlet( |
| 165 | + cmdlet="gwmi -query 'select * from Win32_PnPAllocatedResource'", |
| 166 | + sudo=True, |
| 167 | + force_run=True, |
| 168 | + ) |
| 169 | + pnp_allocated_resources = stdout.strip().split("\r\n\r\n") |
| 170 | + result: List[Dict[str, str]] = [] |
| 171 | + # Regular expression to match the key-value pairs |
| 172 | + pattern = re.compile(r'(?P<key>\S+)\s*:\s*(?P<value>.*?)(?=\n\S|\Z)', re.DOTALL) |
| 173 | + |
| 174 | + for rec in pnp_allocated_resources: |
| 175 | + extract_val = {} |
| 176 | + matches = find_groups_in_lines( |
| 177 | + lines=rec.strip(), |
| 178 | + pattern=pattern, |
| 179 | + single_line=False, |
| 180 | + ) |
| 181 | + if matches: |
| 182 | + for element in matches: |
| 183 | + key = element["key"] |
| 184 | + val = element["value"] |
| 185 | + val = val.replace(" ", "") |
| 186 | + val = val.replace("\r\n", "") |
| 187 | + extract_val[key] = val |
| 188 | + result.append(extract_val) |
| 189 | + return result |
| 190 | + |
| 191 | + def __get_mmio_end_address(self, start_addr: str) -> Optional[str]: |
| 192 | + # MemoryType Name Status |
| 193 | + # ---------- ---- ------ |
| 194 | + # WindowDecode 0xE1800000-0xE1BFFFFF OK |
| 195 | + # 0xE2000000-0xE2000FFF OK |
| 196 | + # WindowDecode 0xD4000000-0xD43FFFFF OK |
| 197 | + # 0xD4800000-0xD4800FFF OK |
| 198 | + # 0xFED1C000-0xFED3FFFF OK |
| 199 | + |
| 200 | + device_mem_addr = self.pwsh.run_cmdlet( |
| 201 | + cmdlet="gwmi -query 'select * from Win32_DeviceMemoryAddress'", |
| 202 | + sudo=True, |
| 203 | + force_run=True, |
| 204 | + ) |
| 205 | + end_addr_rec = None |
| 206 | + for rec in device_mem_addr.splitlines(): |
| 207 | + rec = rec.strip() |
| 208 | + if rec.find(start_addr) >= 0: |
| 209 | + addr = rec.split("-") |
| 210 | + start_addr_rec = addr[0].split()[-1] |
| 211 | + end_addr_rec = addr[1].split()[0].strip() |
| 212 | + |
| 213 | + err = "MMIO Starting address not matching" |
| 214 | + assert start_addr == start_addr_rec, err |
| 215 | + break |
| 216 | + return end_addr_rec |
| 217 | + |
| 218 | + def __get_dda_properties(self, device_id: str) -> Optional[DeviceAddressSchema]: |
| 219 | + """ |
| 220 | + Determine if a PCI device is assignable using Discrete Device Assignment (DDA) |
| 221 | + If so, get DDA proerprties like locationpath, device-id, friendly name |
| 222 | + """ |
| 223 | + self.log.debug(f"PCI InstanceId: {device_id}") |
| 224 | + |
| 225 | + rmrr = self.__get_pnp_device_property( |
| 226 | + device_id=device_id, |
| 227 | + property_name=self.PKEY_REQUIRES_RESERVED_MEMORY_REGION, |
| 228 | + ) |
| 229 | + rmrr = rmrr.strip() |
| 230 | + if rmrr != "False": |
| 231 | + self.log.debug( |
| 232 | + "BIOS requires that this device remain attached to BIOS-owned memory." |
| 233 | + "Not assignable." |
| 234 | + ) |
| 235 | + return None |
| 236 | + |
| 237 | + acs_up = self.__get_pnp_device_property( |
| 238 | + device_id=device_id, |
| 239 | + property_name=self.PKEY_ACS_COMPATIBLE_UP_HIERARCHY, |
| 240 | + ) |
| 241 | + acs_up = acs_up.strip() |
| 242 | + if acs_up == self.PROP_ACS_COMPATIBLE_UP_HIERARCHY_NOT_SUPPORTED: |
| 243 | + self.log.debug( |
| 244 | + "Traffic from this device may be redirected to other devices in " |
| 245 | + "the system. Not assignable." |
| 246 | + ) |
| 247 | + return None |
| 248 | + |
| 249 | + dev_type = self.__get_pnp_device_property( |
| 250 | + device_id=device_id, |
| 251 | + property_name=self.PKEY_DEVICE_TYPE |
| 252 | + ) |
| 253 | + dev_type = dev_type.strip() |
| 254 | + if dev_type == self.PROP_DEVICE_TYPE_PCI_EXPRESS_ENDPOINT: |
| 255 | + self.log.debug("Express Endpoint -- more secure.") |
| 256 | + else: |
| 257 | + if dev_type == ( |
| 258 | + self.PROP_DEVICE_TYPE_PCI_EXPRESS_ROOT_COMPLEX_INTEGRATED_ENDPOINT |
| 259 | + ): |
| 260 | + self.log.debug("Embedded Endpoint -- less secure.") |
| 261 | + elif dev_type == self.PROP_DEVICE_TYPE_PCI_EXPRESS_LEGACY_ENDPOINT: |
| 262 | + dev_base_class = self.__get_pnp_device_property( |
| 263 | + device_id=device_id, |
| 264 | + property_name=self.PKEY_BASE_CLASS, |
| 265 | + ) |
| 266 | + dev_base_class = dev_base_class.strip() |
| 267 | + if dev_base_class == self.PROP_BASE_CLASS_DISPLAY_CTRL: |
| 268 | + self.log.debug("Legacy Express Endpoint -- graphics controller.") |
| 269 | + else: |
| 270 | + self.log.debug("Legacy, non-VGA PCI device. Not assignable.") |
| 271 | + return None |
| 272 | + else: |
| 273 | + if dev_type == self.PROP_DEVICE_TYPE_PCI_EXPRESS_TREATED_AS_PCI: |
| 274 | + self.log.debug( |
| 275 | + "BIOS kept control of PCI Express for this device. " |
| 276 | + "Not assignable." |
| 277 | + ) |
| 278 | + else: |
| 279 | + self.log.debug( |
| 280 | + "Old-style PCI device, switch port, etc. " |
| 281 | + "Not assignable." |
| 282 | + ) |
| 283 | + return None |
| 284 | + |
| 285 | + # Get the device location path |
| 286 | + location_path = self.__get_pnp_device_property( |
| 287 | + device_id=device_id, |
| 288 | + property_name="DEVPKEY_Device_LocationPaths", |
| 289 | + ) |
| 290 | + location_path = location_path.strip().splitlines()[0] |
| 291 | + self.log.debug(f"Device locationpath: {location_path}") |
| 292 | + assert location_path.find("PCI") == 0, "Location path is wrong" |
| 293 | + |
| 294 | + cmd = ( |
| 295 | + "(Get-PnpDevice -PresentOnly -InstanceId " |
| 296 | + f"'{device_id}').ConfigManagerErrorCode" |
| 297 | + ) |
| 298 | + conf_mng_err_code = self.pwsh.run_cmdlet( |
| 299 | + cmdlet=cmd, |
| 300 | + force_run=True, |
| 301 | + sudo=True, |
| 302 | + ) |
| 303 | + conf_mng_err_code = conf_mng_err_code.strip() |
| 304 | + self.log.debug(f"ConfigManagerErrorCode: {conf_mng_err_code}") |
| 305 | + if conf_mng_err_code == "CM_PROB_DISABLED": |
| 306 | + self.log.debug( |
| 307 | + "Device is Disabled, unable to check resource requirements, " |
| 308 | + "it may be assignable." |
| 309 | + ) |
| 310 | + self.log.debug("Enable the device and rerun this script to confirm.") |
| 311 | + return None |
| 312 | + |
| 313 | + irq_assignements = [ |
| 314 | + i for i in self.pnp_allocated_resources |
| 315 | + if i["Dependent"].find(device_id.replace("\\", "\\\\")) >= 0 |
| 316 | + ] |
| 317 | + if irq_assignements: |
| 318 | + msi_assignments = [ |
| 319 | + i for i in self.pnp_allocated_resources |
| 320 | + if i["Antecedent"].find("IRQNumber=42949") >= 0 |
| 321 | + ] |
| 322 | + if not msi_assignments: |
| 323 | + self.log.debug( |
| 324 | + "All of the interrupts are line-based, no assignment can work." |
| 325 | + ) |
| 326 | + return None |
| 327 | + else: |
| 328 | + self.log.debug("Its interrupts are message-based, assignment can work.") |
| 329 | + else: |
| 330 | + self.log.debug("It has no interrupts at all -- assignment can work.") |
| 331 | + |
| 332 | + mmio_assignments = [ |
| 333 | + i for i in self.pnp_allocated_resources |
| 334 | + if i["Dependent"].find(device_id.replace("\\", "\\\\")) >= 0 |
| 335 | + and i["__RELPATH"].find("Win32_DeviceMemoryAddres") >= 0 |
| 336 | + ] |
| 337 | + mmio_total = 0 |
| 338 | + if mmio_assignments: |
| 339 | + for rec in mmio_assignments: |
| 340 | + antecedent_val = rec["Antecedent"] |
| 341 | + addresses = antecedent_val.split('"') |
| 342 | + assert len(addresses) >= 2, "Antecedent: Can't get MMIO Start Address" |
| 343 | + start_address = hex(int(addresses[1].strip())).upper() |
| 344 | + start_address_hex = start_address.replace("X", "x") |
| 345 | + end_address = self.__get_mmio_end_address(start_address_hex) |
| 346 | + assert end_address, "Can not get MMIO End Address" |
| 347 | + |
| 348 | + mmio = int(end_address, 16) - int(start_address, 16) |
| 349 | + mmio_total += mmio |
| 350 | + if mmio_total: |
| 351 | + mmio_total = round(mmio_total / (1024 * 1024)) |
| 352 | + self.log.debug(f"Device '{device_id}', Total MMIO = {mmio_total}MB ") |
| 353 | + else: |
| 354 | + self.log.debug("It has no MMIO space") |
| 355 | + |
| 356 | + device = DeviceAddressSchema() |
| 357 | + device.location_path = location_path |
| 358 | + device.instance_id = device_id |
| 359 | + return device |
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