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| author | Vincent Bernat <vincent@bernat.ch> | 2021-06-14 13:43:57 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-03 03:12:35 -0400 |
| commit | 9e2423ef58f37e1d9def4ef33b054cb7e86da1f7 (patch) | |
| tree | 82beb03340c7d75e6c70c251dc005c8be44ecec2 /docs/pcie_pci_bridge.txt | |
| parent | ee80f5ba22c660453c012a92c766f13498fd6a09 (diff) | |
| download | qemu-9e2423ef58f37e1d9def4ef33b054cb7e86da1f7.zip qemu-9e2423ef58f37e1d9def4ef33b054cb7e86da1f7.tar.gz qemu-9e2423ef58f37e1d9def4ef33b054cb7e86da1f7.tar.bz2 | |
docs: add slot when adding new PCIe root port
Without providing a specific slot, QEMU won't be able to create the
second additional PCIe root port with the following error:
$ qemu-system-x86_64 [...] -machine q35 \
> -device pcie-root-port,bus=pcie.0,id=rp1 \
> -device pcie-root-port,bus=pcie.0,id=rp2
qemu-system-x86_64: -device pcie-root-port,bus=pcie.0,id=rp2:
Can't add chassis slot, error -16
This is due to the fact they both try to use slot 0. Update the
documentation to specify a slot for each new PCIe root port.
Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Message-Id: <20210614114357.1146725-1-vincent@bernat.ch>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'docs/pcie_pci_bridge.txt')
| -rw-r--r-- | docs/pcie_pci_bridge.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/pcie_pci_bridge.txt b/docs/pcie_pci_bridge.txt index ab35ebf..1aa08fc 100644 --- a/docs/pcie_pci_bridge.txt +++ b/docs/pcie_pci_bridge.txt @@ -70,9 +70,9 @@ A detailed command line would be: [qemu-bin + storage options] \ -m 2G \ --device pcie-root-port,bus=pcie.0,id=rp1 \ --device pcie-root-port,bus=pcie.0,id=rp2 \ --device pcie-root-port,bus=pcie.0,id=rp3,bus-reserve=1 \ +-device pcie-root-port,bus=pcie.0,id=rp1,slot=1 \ +-device pcie-root-port,bus=pcie.0,id=rp2,slot=2 \ +-device pcie-root-port,bus=pcie.0,id=rp3,slot=3,bus-reserve=1 \ -device pcie-pci-bridge,id=br1,bus=rp1 \ -device pcie-pci-bridge,id=br2,bus=rp2 \ -device e1000,bus=br1,addr=8 |