diff options
| author | Kevin Tian <kevin.tian@intel.com> | 2025-12-18 08:16:50 +0000 |
|---|---|---|
| committer | Alex Williamson <alex@shazbot.org> | 2025-12-23 14:07:08 -0700 |
| commit | 8bb808cea3016c11c39e6c7f40a2f772e2eed3fe (patch) | |
| tree | d9943413ac4c9a15c0b998058e015df53b5bc0ff /drivers | |
| parent | dc85a46928c41423ad89869baf05a589e2975575 (diff) | |
vfio/pci: Disable qword access to the VGA region
Seems no reason to allow qword access to the old VGA resource. Better
restrict it to dword access as before.
Suggested-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20251218081650.555015-3-kevin.tian@intel.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_rdwr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c index 25380b7dfe18..b38627b35c35 100644 --- a/drivers/vfio/pci/vfio_pci_rdwr.c +++ b/drivers/vfio/pci/vfio_pci_rdwr.c @@ -363,7 +363,7 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf, * to the memory enable bit in the command register. */ done = vfio_pci_core_do_io_rw(vdev, false, iomem, buf, off, count, - 0, 0, iswrite, VFIO_PCI_IO_WIDTH_8); + 0, 0, iswrite, VFIO_PCI_IO_WIDTH_4); vga_put(vdev->pdev, rsrc); |