Steve Sistare <[email protected]> wrote: > Extend the migration URI to support file:<filename>. This can be used for > any migration scenario that does not require a reverse path. It can be > used as an alternative to 'exec:cat > file' in minimized containers that > do not contain /bin/sh, and it is easier to use than the fd:<fdname> URI. > It can be used in HMP commands, and as a qemu command-line parameter. > > For best performance, guest ram should be shared and x-ignore-shared > should be true, so guest pages are not written to the file, in which case > the guest may remain running. If ram is not so configured, then the user > is advised to stop the guest first. Otherwise, a busy guest may re-dirty > the same page, causing it to be appended to the file multiple times, > and the file may grow unboundedly. That issue is being addressed in the > "fixed-ram" patch series. > > Signed-off-by: Steve Sistare <[email protected]> > Tested-by: Michael Galaxy <[email protected]> > Reviewed-by: Michael Galaxy <[email protected]> > Reviewed-by: Fabiano Rosas <[email protected]> > Reviewed-by: Peter Xu <[email protected]>
Reviewed-by: Juan Quintela <[email protected]> queued.
