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vfio-pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK

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PCI_MSIX_FLAGS_BIRMASK is mis-named because the BIR mask is in the
Table Offset register, not the flags ("Message Control" per spec)
register.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Bjorn Helgaas 2013-04-18 12:42:58 -06:00
parent 2366d06eb1
commit 508d1aa602
1 changed files with 2 additions and 2 deletions
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4
drivers/vfio/pci/vfio_pci.c
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@ -78,8 +78,8 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
pci_read_config_word(pdev, msix_pos + PCI_MSIX_FLAGS, &flags);
pci_read_config_dword(pdev, msix_pos + PCI_MSIX_TABLE, &table);
vdev->msix_bar = table & PCI_MSIX_FLAGS_BIRMASK;
vdev->msix_offset = table & ~PCI_MSIX_FLAGS_BIRMASK;
vdev->msix_bar = table & PCI_MSIX_TABLE_BIR;
vdev->msix_offset = table & PCI_MSIX_TABLE_OFFSET;
vdev->msix_size = ((flags & PCI_MSIX_FLAGS_QSIZE) + 1) * 16;
} else
vdev->msix_bar = 0xFF;