tree d98528c7341c5c6df14586975e560eaabc0b12a1
parent c08f5d0e53b00f101c6aab7b5c7eabe22bab1962
author David Woodhouse <dwmw@amazon.co.uk> 1672222009 +0000
committer David Woodhouse <dwmw@amazon.co.uk> 1677661706 +0000

hw/xen: Add basic ring handling to xenstore

Extract requests, return ENOSYS to all of them. This is enough to allow
older Linux guests to boot, as they need *something* back but it doesn't
matter much what.

A full implementation of a single-tentant internal XenStore copy-on-write
tree with transactions and watches is waiting in the wings to be sent in
a subsequent round of patches along with hooking up the actual PV disk
back end in qemu, but this is enough to get guests booting for now.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>