On 5/4/20 5:02 PM, John Baldwin wrote: > Author: jhb > Date: Tue May 5 00:02:04 2020 > New Revision: 360648 > URL: https://svnweb.freebsd.org/changeset/base/360648 > > Log: > Initial support for bhyve save and restore.
This represents a lot of work by the folks at UPB. I merely fixed a few nits. This does need further maturing, but it is easier to do that in the tree at this point than to keep maintaining this patchset out-of-tree. You can find instructions on using this and testing it here: https://github.com/FreeBSD-UPB/freebsd/wiki/Save-and-Restore-a-virtual-machine-using-bhyve Though you will want to build world with WITH_BHYVE_SNAPSHOT=yes and add 'options BHYVE_SNAPSHOT' to your kernel config. My own todo list of small cleanups is below, but a bigger issue is defining a more flexible file format for snapshots that encodes the machine configuration and is not as tied to internal ABIs of device models. That is quite a lift, but one that can be done somewhat incrementally I think. My next set of cleanups: - Remove int arg from VM_RESTORE_TIME ioctl - Remove 'ctx' from vm_snapshot ioctl structure - Add /var/run/bhyve to mtree, remove makedirs, remove checkpoint subdir - block_if.c - Change blockif_flush_bc to return ioctl / fsync return value - Axe bc_paused_cond and just use bc_cond - Use pointer arith for idx in block_if.c - snapshot.c - rewrite strcat_extension to use asprintf - review other bits of this file - remove lseek from vm_mem_read_file? - remove <sys/errno.h> from vmm_snapshot.h? - fix to work with capsicum -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
