Which feature do you think can be improved?

As we want to move to upstream qemu, we should drop as many private qemu patches as possible. One big change we carry with qemu-lite is the migration bypass-shared-memory patch. Qemu 4.0 already has a x-ignore-shared migration capability. With a small change to it, we can make it work similar to bypass-shared-memory and thus get rid of the private qemu patch.

How can it be improved?

1. change x-ignore-shared to work similar to bypass-shared-memory. The patch should be easily accepted.
2. change kata runtime to use x-ignore-shared instead of bypass-shared-memory to implement vm template.
3. change packaging and tests accordingly.

Additional Information

Depending on whether the little qemu patch is backported to QEMU 4.0, we can either get rid of the private qemu patch soon or the next time we lift the qemu version.