diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vfio_pci_core.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index a1eddd55dab8..5569488ec4dc 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -170,6 +170,9 @@ ssize_t vfio_pci_core_read(struct vfio_device *core_vdev, char __user *buf, size_t count, loff_t *ppos); ssize_t vfio_pci_core_write(struct vfio_device *core_vdev, const char __user *buf, size_t count, loff_t *ppos); +vm_fault_t vfio_pci_vmf_insert_pfn(struct vfio_pci_core_device *vdev, + struct vm_fault *vmf, unsigned long pfn, + unsigned int order); int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma); void vfio_pci_core_request(struct vfio_device *core_vdev, unsigned int count); int vfio_pci_core_match(struct vfio_device *core_vdev, char *buf); @@ -212,4 +215,14 @@ VFIO_IOREAD_DECLARATION(32) VFIO_IOREAD_DECLARATION(64) #endif +static inline bool is_aligned_for_order(struct vm_area_struct *vma, + unsigned long addr, + unsigned long pfn, + unsigned int order) +{ + return !(order && (addr < vma->vm_start || + addr + (PAGE_SIZE << order) > vma->vm_end || + !IS_ALIGNED(pfn, 1 << order))); +} + #endif /* VFIO_PCI_CORE_H */ |