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The first VGA and IDE devices need to have fixed PCI address reservations. Currently this is handled inline with the other non-primary VGA/IDE devices. The fixed virtio balloon device at slot 3, ensures auto-assignment skips the slots 1/2. The virtio address will shortly become configurable though. This means the reservation of fixed slots needs to be done upfront to ensure that they don't get re-used for other devices. This is more or less reverting the previous changeset: commit 83acdeaf173b2a1206b755c1ab317cac36facd90 Author: Daniel P. Berrange <berrange@redhat.com> Date: Wed Feb 3 16:11:29 2010 +0000 Fix restore of QEMU guests with PCI device reservation The difference is that this time, instead of unconditionally reserving the address, we only reserve the address if it was initially type=none. Addresses of type=pci were handled earlier in process by qemuDomainPCIAddressSetCreate(). This ensures restore step doesn't have problems * src/qemu/qemu_conf.c: Reserve first VGA + IDE address upfront
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>