Search notes:

drivers/hv/dxgkrnl

drivers/hv/dxgkrnl contains the sources for the dxgkrnl driver which supports paravirtualized virtual compute devices, exposed by Hyper-V when Linux is running inside of a virtual machine (such as for example Windows Subsystem for Linux). hosted by Windows.
Although this driver shares the name with the Windows counterpart, it is a clean room implementation of a Linux GPU driver based on Microsoft's GPU-PV protocol.
The drivers/hv/dxgkrnl directory is added to the Kernel development of Windows Subsystem for Linux (See their Github repository).
In order to compile this driver, the config symbol CONFIG_DXGKRNL must be set.

See also

The header file dxgkrnl.h (found in this directory).
/dev/dxg

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/Linux/ke...', 1759390773, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Linux/kernel/source/drivers/hv/dxgkrnl/index(48): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78