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[PULL v3 11/19] hw/pxb: Add a bypass iommu property
From: |
Michael S. Tsirkin |
Subject: |
[PULL v3 11/19] hw/pxb: Add a bypass iommu property |
Date: |
Fri, 16 Jul 2021 11:15:27 -0400 |
From: Xingang Wang <wangxingang5@huawei.com>
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>
---
hw/pci-bridge/pci_expander_bridge.c | 3 +++
1 file changed, 3 insertions(+)
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(),
};
--
MST
- [PULL v3 01/19] hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35, (continued)
- [PULL v3 01/19] hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35, Michael S. Tsirkin, 2021/07/16
- [PULL v3 02/19] hw/acpi/ich9: Enable ACPI PCI hot-plug, Michael S. Tsirkin, 2021/07/16
- [PULL v3 03/19] hw/pci/pcie: Do not set HPC flag if acpihp is used, Michael S. Tsirkin, 2021/07/16
- [PULL v3 04/19] bios-tables-test: Allow changes in DSDT ACPI tables, Michael S. Tsirkin, 2021/07/16
- [PULL v3 05/19] hw/acpi/ich9: Set ACPI PCI hot-plug as default on Q35, Michael S. Tsirkin, 2021/07/16
- [PULL v3 07/19] hw/virtio: add boilerplate for vhost-user-i2c device, Michael S. Tsirkin, 2021/07/16
- [PULL v3 09/19] docs: Add '-device intel-iommu' entry, Michael S. Tsirkin, 2021/07/16
- [PULL v3 10/19] hw/pci/pci_host: Allow PCI host to bypass iommu, Michael S. Tsirkin, 2021/07/16
- [PULL v3 06/19] bios-tables-test: Update golden binaries, Michael S. Tsirkin, 2021/07/16
- [PULL v3 08/19] hw/virtio: add vhost-user-i2c-pci boilerplate, Michael S. Tsirkin, 2021/07/16
- [PULL v3 11/19] hw/pxb: Add a bypass iommu property,
Michael S. Tsirkin <=
- [PULL v3 12/19] hw/arm/virt: Add default_bus_bypass_iommu machine option, Michael S. Tsirkin, 2021/07/16
- [PULL v3 14/19] hw/pci: Add pci_bus_range() to get PCI bus number range, Michael S. Tsirkin, 2021/07/16
- [PULL v3 13/19] hw/i386: Add a default_bus_bypass_iommu pc machine option, Michael S. Tsirkin, 2021/07/16
- [PULL v3 15/19] hw/arm/virt-acpi-build: Add IORT support to bypass SMMUv3, Michael S. Tsirkin, 2021/07/16
- [PULL v3 17/19] hw/i386/acpi-build: Add IVRS support to bypass iommu, Michael S. Tsirkin, 2021/07/16
- [PULL v3 18/19] docs: Add documentation for iommu bypass, Michael S. Tsirkin, 2021/07/16
- [PULL v3 19/19] vhost-vsock: SOCK_SEQPACKET feature bit support, Michael S. Tsirkin, 2021/07/16
- [PULL v3 16/19] hw/i386/acpi-build: Add DMAR support to bypass iommu, Michael S. Tsirkin, 2021/07/16
- Re: [PULL v3 00/19] pc,pci,virtio: lots of new features, Peter Maydell, 2021/07/16