diff options
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_rdwr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c index d07bfb0ab892..66b72c289284 100644 --- a/drivers/vfio/pci/vfio_pci_rdwr.c +++ b/drivers/vfio/pci/vfio_pci_rdwr.c @@ -89,6 +89,9 @@ EXPORT_SYMBOL_GPL(vfio_pci_core_ioread##size); VFIO_IOREAD(8) VFIO_IOREAD(16) VFIO_IOREAD(32) +#ifdef ioread64 +VFIO_IOREAD(64) +#endif #define VFIO_IORDWR(size) \ static int vfio_pci_iordwr##size(struct vfio_pci_core_device *vdev,\ @@ -124,6 +127,10 @@ static int vfio_pci_iordwr##size(struct vfio_pci_core_device *vdev,\ VFIO_IORDWR(8) VFIO_IORDWR(16) VFIO_IORDWR(32) +#if defined(ioread64) && defined(iowrite64) +VFIO_IORDWR(64) +#endif + /* * Read or write from an __iomem region (MMIO or I/O port) with an excluded * range which is inaccessible. The excluded range drops writes and fills @@ -148,6 +155,15 @@ ssize_t vfio_pci_core_do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem, else fillable = 0; +#if defined(ioread64) && defined(iowrite64) + if (fillable >= 8 && !(off % 8)) { + ret = vfio_pci_iordwr64(vdev, iswrite, test_mem, + io, buf, off, &filled); + if (ret) + return ret; + + } else +#endif if (fillable >= 4 && !(off % 4)) { ret = vfio_pci_iordwr32(vdev, iswrite, test_mem, io, buf, off, &filled); |