Here's the problem:
Everything is x86_64, a Fedora 6 Dom0, and I tried to install Fedora 7 as a fully virtual HVM using the DVD iso image and the New button in the virt-manager:
The installer that it doesn't have a driver for the CDROM and offers to let me do some other kind of install (I mounted the iso under /var/www/html and did a HTTP install and that worked).
Is the kernel on the F7 DVD missing the driver for the kind of emulated dvd-rom that Xen provides?
Should I report a bug?
If so, what component should I report it against?