On Wed, Apr 30, 2025 at 12:58:47AM -0700, Nicolin Chen wrote: > > ... and I just hit a problem with it - this is basically guest BDFn > > and it works as long as I'm hotplugging the TEE-IO VF into an SNP VM > > but does not when I pass through via the QEMU cmdline - bus numbers > > are not assigned yet. So I have to postpone the vdevice allocation > > till run time, did I miss something here? Thanks, > > I have a similar case with QEMU ARM64's VM: so vDEVICE on ARM is > allocated at runtime as well because the BDF number isn't ready > at the boot time.
Oh that's ugly then.. So you'll need to add some kind of 'modify sid/bdf' operation I think. The bus numbers can be reassigned at any time on the fly by the guest by reprogramming the PCI hierarchy. Jason
