On Fri, 12 Nov 2021 17:53:42 +0000 Daniel P. Berrangé <berra...@redhat.com> wrote:
> On Fri, Nov 12, 2021 at 12:35:07PM -0500, Brian Rak wrote: > > In 6.1, a guest with 15 empty pcie-root-port devices will not boot properly > > - it just hangs on "Guest has not initialized the display (yet).". As soon > > as I remove the last pcie-root-port, the guest begins starting up normally. > > > > Yes, QEMU 6.1 has a regression > > https://gitlab.com/qemu-project/qemu/-/issues/641 > > > > commit e2a6290aab578b2170c1f5909fa556385dc0d820 > > Author: Marcel Apfelbaum <marcel.apfelb...@gmail.com> > > Date: Mon Aug 2 12:00:57 2021 +0300 > > > > hw/pcie-root-port: Fix hotplug for PCI devices requiring IO > > > > Although I can't say I really understand why that commit triggered it. > > It caused the firmware to always allocate I/O space for every port > and there's limited total I/O space, so it runs out at 15 devices. alternatively instead of reverting to native PCIe hotplug as in the issue Daniel's mentioned, you can apply following fix https://patchew.org/QEMU/20211112110857.3116853-1-imamm...@redhat.com/ > > Regards, > Daniel
