efi_uaccess.h File Reference

gPXE user access API for EFI More...

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Defines

#define UACCESS_PREFIX_efi __efi_

Functions

FILE_LICENCE (GPL2_OR_LATER)

static __always_inline userptr_t UACCESS_INLINE (efi, phys_to_user)(unsigned long phys_addr)

Convert physical address to user pointer.

static __always_inline
unsigned long UACCESS_INLINE (efi, user_to_phys)(userptr_t userptr

Convert user buffer to physical address.

Detailed Description

gPXE user access API for EFI

EFI runs with flat physical addressing, so the various mappings between virtual addresses, I/O addresses and bus addresses are all no-ops.

Definition in file efi_uaccess.h.

#define UACCESS_PREFIX_efi __efi_

Definition at line 18 of file efi_uaccess.h.

FILE_LICENCE ( GPL2_OR_LATER )

static __always_inline userptr_t UACCESS_INLINE	(	efi	,
		phys_to_user
	)			`[inline, static]`

Convert physical address to user pointer.

Parameters:

phys_addr

Physical address

Return values:

userptr

User pointer

Definition at line 28 of file efi_uaccess.h.

00028                                                                  {
00029         return phys_addr;
00030 }

static __always_inline unsigned long UACCESS_INLINE	(	efi	,
		user_to_phys
	)			`[inline, static]`

Convert user buffer to physical address.

Parameters:

	userptr	User pointer
	offset	Offset from user pointer

Return values:

phys_addr

Physical address


Defines
#define	UACCESS_PREFIX_efi __efi_
Functions
	FILE_LICENCE (GPL2_OR_LATER)
static __always_inline userptr_t	UACCESS_INLINE (efi, phys_to_user)(unsigned long phys_addr)
	Convert physical address to user pointer.
static __always_inline unsigned long	UACCESS_INLINE (efi, user_to_phys)(userptr_t userptr
	Convert user buffer to physical address.