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authorXingang Wang <wangxingang5@huawei.com>2021-07-08 12:55:11 +0000
committerMichael S. Tsirkin <mst@redhat.com>2021-07-16 11:10:45 -0400
commit2d64b7bbb2a2e945635633486ef9a060cb2c89bc (patch)
tree0acc3b05c6b68d81ae923f1715aab953dd401a1c /include/hw/pci
parent7395b3e3e70031b1efff7941cbef6a1ceb6f2ffd (diff)
hw/pci/pci_host: Allow PCI host to bypass iommu
Add a new bypass_iommu property for PCI host and use it to check whether devices attached to the PCI root bus will bypass iommu. In pci_device_iommu_address_space(), check the property and avoid getting iommu address space for devices bypass iommu. Signed-off-by: Xingang Wang <wangxingang5@huawei.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-Id: <1625748919-52456-2-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 'include/hw/pci')
-rw-r--r--include/hw/pci/pci.h1
-rw-r--r--include/hw/pci/pci_host.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 6be4e0c460..f4d51b672b 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -480,6 +480,7 @@ void pci_for_each_bus(PCIBus *bus,
PCIBus *pci_device_root_bus(const PCIDevice *d);
const char *pci_root_bus_path(PCIDevice *dev);
+bool pci_bus_bypass_iommu(PCIBus *bus);
PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn);
int pci_qdev_find_device(const char *id, PCIDevice **pdev);
void pci_bus_get_w64_range(PCIBus *bus, Range *range);
diff --git a/include/hw/pci/pci_host.h b/include/hw/pci/pci_host.h
index 52e038c019..c6f4eb4585 100644
--- a/include/hw/pci/pci_host.h
+++ b/include/hw/pci/pci_host.h
@@ -43,6 +43,7 @@ struct PCIHostState {
uint32_t config_reg;
bool mig_enabled;
PCIBus *bus;
+ bool bypass_iommu;
QLIST_ENTRY(PCIHostState) next;
};