Posting this here because I don't want to clutter up the announcement thread.... but how do you get virtiofs to work with a Windows 10 VM?
The form composer created this for the settings:
<filesystem type='mount' accessmode='passthrough'>
<driver type='virtiofs' queue='1024'/>
<binary path='/usr/libexec/virtiofsd' xattr='on'>
<cache mode='always'/>
<sandbox mode='chroot'/>
<lock posix='on' flock='on'/>