vmm pptdevs does not handle domain, only bus, slot, func

Hi -

   I am trying to pass some nvme devices to a bhyve vm, using pptdevs=
in loader.conf. From pciconf:

nvme0@pci0:176:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344
nvme1@pci0:177:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344
nvme2@pci1:176:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344
nvme3@pci1:177:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344
nvme4@pci1:178:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344
nvme5@pci1:179:0:0:  class=0x010802 rev=0x01 hdr=0x00 vendor=0x1344

   Note, nvme0 & 1 have the same bus/slot/func definition as nvme2 & 3.
However, the code that parses pptdevs= does not consider the domain, pci0
vs pci1 in this case.

   Trying to passthru nvme2@pci1:176:0:0: with pptdevs="176/0/0" causes
confusion with nvme0@pci0:176:0:0:.

   Thoughts on adding a variable to contain a dbsf(dbdf), or try to parse
both a bsf(bdf) and dbsf from pptdevs? (and pass domain in along with bus,
slot, and func)

   Something along the lines of (untested):

vmm_is_pptdev(int domain, int bus, int slot, int func)

n = sscanf(cp, "%d/%d/%d/%d", &d, &b, &s, &f);
if (n == 4 && domain == d && bus == b && slot == s && func == f) {
   found = true;
   break;
}
n = sscanf(cp, "%d/%d/%d", &b, &s, &f);
if (n == 3 && bus == b && slot == s && func == f) {
   found = true;
   break;
}


   Yes, devctl does appear to work correctly. Looking for parity.

-John