Displaying 3 results from an estimated 3 matches for "bus_nr".
2018 Oct 17
3
pcie-expander-bus doesn't support pcie-pci-bridge and pcie-switch-upstream-port
...NECT_TYPE_PCIE_ROOT_PORT
|
358 ┆ ┆ ┆ ┆ ┆
VIR_PCI_CONNECT_TYPE_DMI_TO_PCI_BRIDGE);
359 ┆ bus->minSlot =
0;
360 ┆ bus->maxSlot =
VIR_PCI_ADDRESS_SLOT_LAST;
361 ┆ break;
But it works in qemu:
# /usr/libexec/qemu-kvm -machine q35 -m 1024 -device
pxb-pcie,bus_nr=250,id=pci.1,bus=pcie.0,addr=0x4 -device
pcie-pci-bridge,id=pci.250,bus=pci.1,addr=0x0 -device
pcie-pci-bridge,id=pci.251,bus=pci.1,addr=0x1 -spice
port=5902,addr=0.0.0.0,disable-ticketing /var/lib/libvirt/images/q35.qcow2
So why pcie-expander-bus doesn't these two controllers? For any concern...
2018 Oct 17
1
Re: pcie-expander-bus doesn't support pcie-pci-bridge and pcie-switch-upstream-port
...ite recall *why* that is the case - perhaps Laine
> does? - but I'm sure we had very compelling reasons O:-)
Umm, because Marcel told us that was the proper behavior ? Right, Marcel?
>
>> But it works in qemu:
>> # /usr/libexec/qemu-kvm -machine q35 -m 1024 -device pxb-pcie,bus_nr=250,id=pci.1,bus=pcie.0,addr=0x4 -device pcie-pci-bridge,id=pci.250,bus=pci.1,addr=0x0 -device pcie-pci-bridge,id=pci.251,bus=pci.1,addr=0x1 -spice port=5902,addr=0.0.0.0,disable-ticketing /var/lib/libvirt/images/q35.qcow2
> It should be noted that QEMU in general allows users to make pretty
>...
2018 Oct 17
0
Re: pcie-expander-bus doesn't support pcie-pci-bridge and pcie-switch-upstream-port
...uires
a pcie-root <- pcie-root-port <- pcie-to-pci-bridge topology.
Now, I don't quite recall *why* that is the case - perhaps Laine
does? - but I'm sure we had very compelling reasons O:-)
> But it works in qemu:
> # /usr/libexec/qemu-kvm -machine q35 -m 1024 -device pxb-pcie,bus_nr=250,id=pci.1,bus=pcie.0,addr=0x4 -device pcie-pci-bridge,id=pci.250,bus=pci.1,addr=0x0 -device pcie-pci-bridge,id=pci.251,bus=pci.1,addr=0x1 -spice port=5902,addr=0.0.0.0,disable-ticketing /var/lib/libvirt/images/q35.qcow2
It should be noted that QEMU in general allows users to make pretty
unwise...