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HV: add generic vdev functions to vdev.c 

Add vdev functions so they can be reused by both partition mode
and sharing mode code:
pci_find_vdev_by_vbdf: search for vdev by virtual bdf
pci_find_vdev_by_pbdf: search for vdev by physical bdf

Tracked-On: #2534
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
dongshen 2019-02-15 12:47:24 -08:00 committed by Eddie Dong
parent 731b0444b1
commit be3fbaa461
2 changed files with 46 additions and 0 deletions
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4
hypervisor/dm/vpci/pci_priv.h
View File

@ -81,4 +81,8 @@ void populate_msi_struct(struct pci_vdev *vdev);
void add_vdev_handler(struct pci_vdev *vdev, const struct pci_vdev_ops *ops); void add_vdev_handler(struct pci_vdev *vdev, const struct pci_vdev_ops *ops);
struct pci_vdev *pci_find_vdev_by_vbdf(const struct acrn_vpci *vpci, union pci_bdf vbdf);
struct pci_vdev *pci_find_vdev_by_pbdf(const struct acrn_vpci *vpci, union pci_bdf pbdf);
#endif /* PCI_PRIV_H_ */ #endif /* PCI_PRIV_H_ */

42
hypervisor/dm/vpci/vdev.c
View File

@ -63,3 +63,45 @@ void pci_vdev_write_cfg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes,
break; break;
} }
} }
/**
* @pre tmp != NULL
*/
struct pci_vdev *pci_find_vdev_by_vbdf(const struct acrn_vpci *vpci, union pci_bdf vbdf)
{
struct pci_vdev *vdev, *tmp;
uint32_t i;
vdev = NULL;
for (i = 0U; i < vpci->pci_vdev_cnt; i++) {
tmp = (struct pci_vdev *)&(vpci->pci_vdevs[i]);
if (bdf_is_equal(&(tmp->vbdf), &vbdf)) {
vdev = tmp;
break;
}
}
return vdev;
}
/**
* @pre tmp != NULL
*/
struct pci_vdev *pci_find_vdev_by_pbdf(const struct acrn_vpci *vpci, union pci_bdf pbdf)
{
struct pci_vdev *vdev, *tmp;
uint32_t i;
vdev = NULL;
for (i = 0U; i < vpci->pci_vdev_cnt; i++) {
tmp = (struct pci_vdev *)&(vpci->pci_vdevs[i]);
if ((tmp->pdev != NULL) && bdf_is_equal((union pci_bdf *)&(tmp->pdev->bdf), &pbdf)) {
vdev = tmp;
break;
}
}
return vdev;
}