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hv: vpci: remove 64 bits PCI BAR map logic constraint

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After reshuffle pci_bar structrue we could write ~0U not BAR size mask to BAR
configuration space directly when do BAR sizing. In this case, we could know whether
the value in BAR configuration space is a valid base address. As a result, we could
do BAR re-programming whenever we want.

Tracked-On: #3475
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1
2019-11-13 22:01:52 +08:00
committed by wenlingz
parent c049c5c965
commit 5fdb6cc0ac
4 changed files with 35 additions and 37 deletions
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2
hypervisor/dm/vpci/vpci_priv.h
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@@ -126,7 +126,6 @@ static inline bool msicap_access(const struct pci_vdev *vdev, uint32_t offset)
}
void init_vdev_pt(struct pci_vdev *vdev);
void vdev_pt_read_cfg(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
void vdev_pt_write_vbar(struct pci_vdev *vdev, uint32_t idx, uint32_t val);
void init_vmsi(struct pci_vdev *vdev);
@@ -145,6 +144,7 @@ void pci_vdev_write_cfg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes,
struct pci_vdev *pci_find_vdev(struct acrn_vpci *vpci, union pci_bdf vbdf);
uint32_t pci_vdev_read_bar(const struct pci_vdev *vdev, uint32_t idx);
void pci_vdev_write_bar(struct pci_vdev *vdev, uint32_t idx, uint32_t val);
uint64_t pci_vdev_get_bar_base(const struct pci_vdev *vdev, uint32_t idx);
#endif /* VPCI_PRIV_H_ */