diff options
Diffstat (limited to 'gpxe/src/arch/i386/transitions/librm_mgmt.c')
-rw-r--r-- | gpxe/src/arch/i386/transitions/librm_mgmt.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/gpxe/src/arch/i386/transitions/librm_mgmt.c b/gpxe/src/arch/i386/transitions/librm_mgmt.c deleted file mode 100644 index f00be811..00000000 --- a/gpxe/src/arch/i386/transitions/librm_mgmt.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * librm: a library for interfacing to real-mode code - * - * Michael Brown <mbrown@fensystems.co.uk> - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <realmode.h> - -/* - * This file provides functions for managing librm. - * - */ - -/** - * Allocate space on the real-mode stack and copy data there from a - * user buffer - * - * @v data User buffer - * @v size Size of stack data - * @ret sp New value of real-mode stack pointer - */ -uint16_t copy_user_to_rm_stack ( userptr_t data, size_t size ) { - userptr_t rm_stack; - rm_sp -= size; - rm_stack = real_to_user ( rm_ss, rm_sp ); - memcpy_user ( rm_stack, 0, data, 0, size ); - return rm_sp; -}; - -/** - * Deallocate space on the real-mode stack, optionally copying back - * data to a user buffer. - * - * @v data User buffer - * @v size Size of stack data - */ -void remove_user_from_rm_stack ( userptr_t data, size_t size ) { - if ( data ) { - userptr_t rm_stack = real_to_user ( rm_ss, rm_sp ); - memcpy_user ( rm_stack, 0, data, 0, size ); - } - rm_sp += size; -}; - -PROVIDE_UACCESS_INLINE ( librm, phys_to_user ); -PROVIDE_UACCESS_INLINE ( librm, user_to_phys ); -PROVIDE_UACCESS_INLINE ( librm, virt_to_user ); -PROVIDE_UACCESS_INLINE ( librm, user_to_virt ); -PROVIDE_UACCESS_INLINE ( librm, userptr_add ); -PROVIDE_UACCESS_INLINE ( librm, memcpy_user ); -PROVIDE_UACCESS_INLINE ( librm, memmove_user ); -PROVIDE_UACCESS_INLINE ( librm, memset_user ); -PROVIDE_UACCESS_INLINE ( librm, strlen_user ); -PROVIDE_UACCESS_INLINE ( librm, memchr_user ); |