On 11/16/2015 10:40 AM, Paolo Bonzini wrote:
On 15/11/2015 16:39, Marcel Apfelbaum wrote:Addressed Gerd Hoffmann comments: - Added x-enable-internal-bridge compat property to keep the PCI bridge for older machine to avoid breaking migration.This will break PXB command lines written for "-M pc" in QEMU <= 2.5. Technically there's no prohibition against doing so, but we've never done it; I'm not sure why we should start doing so now.
Hi Paolo, Can you please explain how does it break the command line? For QEMU < 2.5 we automatically have the x-enable-internal-bridge compat property "on" so the command line remains the same. For QEMU >= 2.5 is "off" by default and the bridge disappear, without command line changes.
Can we have two devices, on for a PCI expander bridge and one for a PCIe expander bridge?
Gerd also asked for this, OK, I am going for it. Thanks, Marcel
Paolo
