Comment 5 for bug 1297224

Sorry for my bad english.
I not understand if you mean right.
About seabios, upstream qemu and ovmf from distro package I mean simply for example:
for seabios ./configure ... --with-system-seabios=/usr/share/seabios/bios.bin and remove tools-firmware-seabios-packaged patch.
About ovmf is better not use it until the package will be updated.
Seabios and ovmf are still build in hvmloader and need xen packages to be rebuild for update them (same of actual patches), qemu instead not need xen rebuild but will automatic use new version on qemu package update.
for upstream qemu ./configure ... --with-system-qemu=/usr/bin/qemu-system-i386 (if I remember good) and remove ubuntu-qemu-disable-qemu-upstream and ubuntu-qemu-upstream-location patches.

For example I use debian for develop and testing, I used Seabios from debian packages many times, also recently, and qemu from debian package instead compile it months ago latest time, but also with qemu 2.0 final should be ok, I recently tested it with xen 4.4 and xen-unstable (4.5).