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sys/drivers directoryThe directory sys/drivers exists as a sub-directory to the file system root.
The directory and its sub-directories contains information about loaded active kernel drivers and their devices.
The files in the sys/drivers directory are listed in the table below:
| File | Description |
|---|---|
| devices.txt | Summary information about all devices. |
| drivers.txt | Summary information about all drivers. |
| driver_irp.txt | Information about IRPs related to all drivers. |
| by-name/[driver]/* | Information about the Driver object and its header. |
| by-name/[driver]/[module]* | Information about the Driver module. |
Files in the sys/drivers directory and sub-directories are read-only.
The file devices.txt contains summary information about loaded active kernel devices in a device tree format. The meaning of the different columns are as follows:
# Depth DeviceAddress DeviceName DriverAddress DriverName DeviceType / ExtraInfo
------------------------------------------------------------------------------------------------------
0000 - ffffbb8c5ba6e280 00000015 ffffbb8c5bb91970 ACPI FILE_DEVICE_ACPI(50)
0001 - ffffbb8c5ba8f3d0 RESOURCE_HUB ffffbb8c5bb56780 acpiex FILE_DEVICE_UNKNOWN(34)
0002 - ffffbb8c5baad0a0 KMDF0 ffffbb8c5bbde9e0 Wdf01000 FILE_DEVICE_UNKNOWN(34)
0003 - ffffbb8c5bab3ca0 KsecDD ffffbb8c5bc43060 KSecDD FILE_DEVICE_KSEC(57)
...
009d - ffffbb8c5cbf1030 --- ffffbb8c5c94ce00 volsnap FILE_DEVICE_DISK(7)
009e -- ffffbb8c5c969de0 --- ffffbb8c5c94be00 volume FILE_DEVICE_DISK(7)
009f --- ffffbb8c5ca618d0 --- ffffbb8c5c94de00 rdyboost FILE_DEVICE_DISK(7)
00a0 ---- ffffbb8c5cbf0930 --- ffffbb8c5c95ae00 iorate FILE_DEVICE_DISK(7)
00a1 ----- ffffbb8c5cbef030 --- ffffbb8c5c940e00 fvevol FILE_DEVICE_DISK(7)
00a2 ------ ffffbb8c5caa18f0 HarddiskVolume3 ffffbb8c5bb804f0 volmgr FILE_DEVICE_DISK(7) / DeviceFS:[ffffbb8c5cc1d030] VolumeLabel:[SYSTEMDRIVE]
...
The file drivers.txt contains summary information about loaded active kernel drivers. The meaning of the different columns are as follows:
# Object Address Driver Size Drv Range: Start-End Service Key Driver Name
---------------------------------------------------------------------------------------------------------
0000 ffffcf00cb5f5450 ahcache 41000 fffff809b6240000-fffff809b6280fff ahcache \Driver\ahcache
0001 ffffcf00cb337e60 iorate 11000 fffff809b6480000-fffff809b6490fff iorate \Driver\iorate
0002 ffffcf00c9ff5ac0 pcw 13000 fffff809b59e0000-fffff809b59f2fff pcw \Driver\pcw
0003 ffffcf00c9f61c40 VBoxNetLwf 49000 fffff809b6b20000-fffff809b6b68fff VBoxNetLwf \Driver\VBoxNetLwf
0004 ffffcf00c9819390 lxss b000 fffff809b5420000-fffff809b542afff lxss \Driver\lxss
0005 ffffcf00cdd3b060 rspndr 1a000 fffff809bb420000-fffff809bb439fff rspndr \Driver\rspndr
0006 ffffcf00cd6d2e60 WINUSB d000 fffff809bb180000-fffff809bb19cfff WINUSB \Driver\WINUSB
0007 ffffcf00cb312d20 volume b000 fffff809b7380000-fffff809b738afff volume \Driver\volume
0008 ffffcf00c9547e60 SoftwareDevice 0 fffff8032ae89000-fffff8032ae89000 \Driver\Software \Driver\SoftwareDevice
...
The file driver_irp.txt contains information about each of the IRPs tied to a driver.
Please note that unsupported requests point to the default unsupported function in the kernel. This is denoted as --- in the example below. Unknown target modules are listed as ?.
The meaning of the different columns are as follows:
# Driver # IRP_MJ_* Address Target Module
--------------------------------------------------------------------------------
0000 ahcache 0 CREATE fffff809b626a610 ahcache
0001 ahcache 1 CREATE_NAMED_PIPE fffff8032aece2c0 ---
0002 ahcache 2 CLOSE fffff809b626a610 ahcache
0003 ahcache 3 READ fffff8032aece2c0 ---
0004 ahcache 4 WRITE fffff8032aece2c0 ---
0005 ahcache 5 QUERY_INFORMATION fffff8032aece2c0 ---
0006 ahcache 6 SET_INFORMATION fffff8032aece2c0 ---
0007 ahcache 7 QUERY_EA fffff8032aece2c0 ---
0008 ahcache 8 SET_EA fffff8032aece2c0 ---
0009 ahcache 9 FLUSH_BUFFERS fffff8032aece2c0 ---
000a ahcache 10 QUERY_VOLUME_INFORMATION fffff8032aece2c0 ---
000b ahcache 11 SET_VOLUME_INFORMATION fffff8032aece2c0 ---
000c ahcache 12 DIRECTORY_CONTROL fffff8032aece2c0 ---
000d ahcache 13 FILE_SYSTEM_CONTROL fffff8032aece2c0 ---
000e ahcache 14 DEVICE_CONTROL fffff809b6260870 ahcache
000f ahcache 15 INTERNAL_DEVICE_CONTROL fffff8032aece2c0 ---
0010 ahcache 16 SHUTDOWN fffff809b6278190 ahcache
0011 ahcache 17 LOCK_CONTROL fffff8032aece2c0 ---
0012 ahcache 18 CLEANUP fffff8032aece2c0 ---
0013 ahcache 19 CREATE_MAILSLOT fffff8032aece2c0 ---
0014 ahcache 20 QUERY_SECURITY fffff8032aece2c0 ---
0015 ahcache 21 SET_SECURITY fffff8032aece2c0 ---
0016 ahcache 22 POWER fffff8032aece2c0 ---
0017 ahcache 23 SYSTEM_CONTROL fffff8032aece2c0 ---
0018 ahcache 24 DEVICE_CHANGE fffff8032aece2c0 ---
0019 ahcache 25 QUERY_QUOTA fffff8032aece2c0 ---
001a ahcache 26 SET_QUOTA fffff8032aece2c0 ---
001b ahcache 27 PNP fffff8032aece2c0 ---
001c iorate 0 CREATE fffff809b6484860 iorate
001d iorate 1 CREATE_NAMED_PIPE fffff809b6484860 iorate
001e iorate 2 CLOSE fffff809b6484860 iorate
...
The example shows the loaded kernel driver list and its IRPs - which are both made available under the sys/drivers directory.
[[resources/root_sys_drivers.png]]
The sys/drivers sub-directory is implemented as a built-in native C-code plugin. The plugin source is located in the file modules/m_sys_driver.c in the vmm project.
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