diff options
Diffstat (limited to 'drivers/vfio/pci/vfio_pci.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 6968b7232232..6c119944bbb6 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -408,7 +408,7 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma) struct vfio_pci_device *vdev = device_data; struct pci_dev *pdev = vdev->pdev; unsigned int index; - u64 phys_len, req_len, pgoff, req_start, phys; + u64 phys_len, req_len, pgoff, req_start; int ret; index = vma->vm_pgoff >> (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT); @@ -461,12 +461,11 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma) } vma->vm_private_data = vdev; - vma->vm_flags |= (VM_IO | VM_RESERVED); + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_pgoff = (pci_resource_start(pdev, index) >> PAGE_SHIFT) + pgoff; - phys = (pci_resource_start(pdev, index) >> PAGE_SHIFT) + pgoff; - - return remap_pfn_range(vma, vma->vm_start, phys, + return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, req_len, vma->vm_page_prot); } |