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| author |   Frank Blaschka <frank.blaschka@de.ibm.com> | 2014-11-07 09:52:22 -0700 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2014-11-07 09:52:22 -0700 |
| commit | 1d53a3a7d3b886bcc60b90e41693b82a791c25ba (patch) | |
| tree | 0c3ccdb3b8b5c769b458b185b2eb209468e8667e /drivers/vfio/pci/vfio_pci_config.c | |
| parent | Linux 3.18-rc3 (diff) | |
| download | linux-dev-1d53a3a7d3b886bcc60b90e41693b82a791c25ba.tar.xz linux-dev-1d53a3a7d3b886bcc60b90e41693b82a791c25ba.zip | |
vfio: make vfio run on s390
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>
Diffstat (limited to 'drivers/vfio/pci/vfio_pci_config.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_config.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c index 1de3f94aa7de..ff75ca31a199 100644 --- a/drivers/vfio/pci/vfio_pci_config.c +++ b/drivers/vfio/pci/vfio_pci_config.c @@ -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; |