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| author | Xingang Wang | 2021-07-08 14:55:12 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2021-07-16 17:10:45 +0200 |
| commit | 91528f40ba3dda110927f11b47620bb24f8d601b (patch) | |
| tree | e062caccf8c5688aac611d3a70fb200466ede48c /hw/pci-bridge | |
| parent | hw/pci/pci_host: Allow PCI host to bypass iommu (diff) | |
| download | qemu-91528f40ba3dda110927f11b47620bb24f8d601b.tar.gz qemu-91528f40ba3dda110927f11b47620bb24f8d601b.tar.xz qemu-91528f40ba3dda110927f11b47620bb24f8d601b.zip | |
hw/pxb: Add a bypass iommu property
Add a bypass_iommu property for pci_expander_bridge, the property
is used to indicate whether pxb root bus will bypass iommu. By
default the bypass_iommu is disabled, and it can be enabled with:
qemu -device pxb-pcie,bus_nr=0x10,addr=0x1,bypass_iommu=true
Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <1625748919-52456-3-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci-bridge')
| -rw-r--r-- | hw/pci-bridge/pci_expander_bridge.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c index aedded1064..7112dc3062 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -57,6 +57,7 @@ struct PXBDev { uint8_t bus_nr; uint16_t numa_node; + bool bypass_iommu; }; static PXBDev *convert_to_pxb(PCIDevice *dev) @@ -255,6 +256,7 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp) bus->map_irq = pxb_map_irq_fn; PCI_HOST_BRIDGE(ds)->bus = bus; + PCI_HOST_BRIDGE(ds)->bypass_iommu = pxb->bypass_iommu; pxb_register_bus(dev, bus, &local_err); if (local_err) { @@ -301,6 +303,7 @@ static Property pxb_dev_properties[] = { /* Note: 0 is not a legal PXB bus number. */ DEFINE_PROP_UINT8("bus_nr", PXBDev, bus_nr, 0), DEFINE_PROP_UINT16("numa_node", PXBDev, numa_node, NUMA_NODE_UNASSIGNED), + DEFINE_PROP_BOOL("bypass_iommu", PXBDev, bypass_iommu, false), DEFINE_PROP_END_OF_LIST(), }; |