dv 3c817da7c9 vmm(4)/vmd(8): switch to anonymous shared mappings. ... While splitting out emulated virtio network and block devices into separate processes, I originally used named mappings via shm_mkstemp(3). While this functionally achieved the desired result, it had two unintended consequences: 1) tearing down a vm process and its child processes required excessive locking as the guest memory was tied into the VFS layer. 2) it was observed by mlarkin@ that actions in other parts of the VFS layer could cause some of the guest memory to flush to storage, possibly filling /tmp. This commit adds a new vmm(4) ioctl dedicated to allowing a process request the kernel share a mapping of guest memory into its own vm space. This requires an open fd to /dev/vmm (requiring root) and both the "vmm" and "proc" pledge(2) promises. In addition, the caller must know enough about the original memory ranges to reconstruct them to make the vm's ranges. Tested with help from Mischa Peters. ok mlarkin@		2023-05-13 23:15:28 +00:00
..
bin	Cope with recent changes to alignment of command column.	2023-03-09 06:22:40 +00:00
etc	Bring this regress into nicer shape. Add all recent architectures.	2021-09-27 18:27:14 +00:00
gnu	Add subdir gnu/lib to regress.	2022-03-23 22:34:51 +00:00
include
lib	Assert that test->want != NULL at this point	2023-05-13 07:17:32 +00:00
libexec	Treat symlinks better in $ORIGIN determination in ld.so	2023-04-09 23:41:47 +00:00
misc	Print skipped on non applicable architectures.	2022-12-08 12:14:11 +00:00
sbin	remove duplicate includes	2023-04-19 12:58:15 +00:00
sys	vmm(4)/vmd(8): switch to anonymous shared mappings.	2023-05-13 23:15:28 +00:00
usr.bin	test ChrootDirectory in Match block	2023-05-12 06:37:42 +00:00
usr.sbin	Make rpki-client choose the verification time of the time it is invoked	2023-04-27 08:37:53 +00:00
Makefile