diff options
| -rw-r--r-- | src/include/ipxe/linux/linux_uaccess.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/include/ipxe/linux/linux_uaccess.h b/src/include/ipxe/linux/linux_uaccess.h index acd919a85..a642b6163 100644 --- a/src/include/ipxe/linux/linux_uaccess.h +++ b/src/include/ipxe/linux/linux_uaccess.h @@ -25,7 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #endif /** - * Convert user buffer to physical address + * Convert user pointer to physical address * * @v userptr User pointer * @v offset Offset from user pointer @@ -46,6 +46,19 @@ UACCESS_INLINE ( linux, user_to_phys ) ( userptr_t userptr, off_t offset ) { return ( userptr + offset ); } +/** + * Convert physical address to user pointer + * + * @v phys_addr Physical address + * @ret userptr User pointer + */ +static inline __always_inline userptr_t +UACCESS_INLINE ( linux, phys_to_user ) ( physaddr_t phys_addr ) { + + /* For symmetry with the stub user_to_phys() */ + return phys_addr; +} + static inline __always_inline userptr_t UACCESS_INLINE ( linux, virt_to_user ) ( volatile const void *addr ) { return trivial_virt_to_user ( addr ); |