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vfio: make vfio run on s390

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add Kconfig switch to hide INTx
add Kconfig switch to let vfio announce PCI BARs are not mapable

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Frank Blaschka
2014-11-07 09:52:22 -07:00
committed by Alex Williamson
parent 0df1f2487d
commit 1d53a3a7d3
4 changed files with 19 additions and 3 deletions
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7
drivers/vfio/pci/vfio_pci_config.c
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@@ -609,6 +609,10 @@ static int __init init_pci_cap_basic_perm(struct perm_bits *perm)
/* Sometimes used by sw, just virtualize */
p_setb(perm, PCI_INTERRUPT_LINE, (u8)ALL_VIRT, (u8)ALL_WRITE);
/* Virtualize interrupt pin to allow hiding INTx */
p_setb(perm, PCI_INTERRUPT_PIN, (u8)ALL_VIRT, (u8)NO_WRITE);
return 0;
}
@@ -1445,6 +1449,9 @@ int vfio_config_init(struct vfio_pci_device *vdev)
*(__le16 *)&vconfig[PCI_DEVICE_ID] = cpu_to_le16(pdev->device);
}
if (!IS_ENABLED(CONFIG_VFIO_PCI_INTX))
vconfig[PCI_INTERRUPT_PIN] = 0;
ret = vfio_cap_init(vdev);
if (ret)
goto out;