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virtio-pci: address space translation service (ATS) support

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This patches enable the Address Translation Service support for virtio
pci devices. This is needed for a guest visible Device IOTLB
implementation and will be required by vhost device IOTLB API
implementation for intel IOMMU.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jason Wang 2016-12-30 18:09:15 +08:00 • committed by Michael S. Tsirkin
parent 554f5e1604
commit 615c4ed205
5 changed files with 31 additions and 0 deletions
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4
include/hw/pci/pcie.h
View file

@ -74,6 +74,9 @@ struct PCIExpressDevice {
/* AER */
uint16_t aer_cap;
PCIEAERLog aer_log;
/* Offset of ATS capability in config space */
uint16_t ats_cap;
};
#define COMPAT_PROP_PCP "power_controller_present"
@ -120,6 +123,7 @@ void pcie_add_capability(PCIDevice *dev,
void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn);
void pcie_dev_ser_num_init(PCIDevice *dev, uint16_t offset, uint64_t ser_num);
void pcie_ats_init(PCIDevice *dev, uint16_t offset);
extern const VMStateDescription vmstate_pcie_device;