On Sun, Feb 28, 2021 at 11:43:55AM +0100, Thomas Lamprecht wrote: > Hi Vitaly, > > On 28.02.21 10:11, vit9696 wrote: > > For us this breaks the ability to control the boot options between the > > operating system and the OVMF. It happens because the operating system > > builds the DPs based on ACPI (in fact the only source available to it), > > while OVMF uses another source. The previous behaviour also violates the > > specification, so I do not believe there is room for reverting it. I > > believe it is also not possible to update QEMU to internally use the 1 UID, > > since it may conflict with the case when there are multiple PCI bus. > > I think you may have misunderstood me a little bit, I did not ask for this to > be reverted in upstream QEMU, it's quite clear to me that this should be the > new default behaviour and should have been since ever.
We do make an effort to avoid guest visible changes within machine version though. this is what we should do here I think. -- MST
