efi_uaccess.h File Reference

iPXE user access API for EFI More...

Go to the source code of this file.

Macros
#define	UACCESS_PREFIX_efi   __efi_

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
static __always_inline userptr_t	UACCESS_INLINE (efi, phys_to_user)(unsigned long phys_addr)
	Convert physical address to user pointer. More...
static __always_inline unsigned long	UACCESS_INLINE (efi, user_to_phys)(userptr_t userptr
	Convert user buffer to physical address. More...
static __always_inline userptr_t	UACCESS_INLINE (efi, virt_to_user)(volatile const void *addr)
static __always_inline void *	UACCESS_INLINE (efi, user_to_virt)(userptr_t userptr
static __always_inline userptr_t	UACCESS_INLINE (efi, userptr_add)(userptr_t userptr
static __always_inline off_t	UACCESS_INLINE (efi, userptr_sub)(userptr_t userptr
static __always_inline void	UACCESS_INLINE (efi, memcpy_user)(userptr_t dest
static __always_inline void	UACCESS_INLINE (efi, memmove_user)(userptr_t dest
static __always_inline int	UACCESS_INLINE (efi, memcmp_user)(userptr_t first
static __always_inline void	UACCESS_INLINE (efi, memset_user)(userptr_t buffer
static __always_inline size_t	UACCESS_INLINE (efi, strlen_user)(userptr_t buffer
static __always_inline off_t	UACCESS_INLINE (efi, memchr_user)(userptr_t buffer

Variables
static __always_inline unsigned long off_t	offset
static __always_inline off_t userptr_t	subtrahend
static __always_inline void off_t	dest_off
static __always_inline void off_t userptr_t	src
static __always_inline void off_t userptr_t off_t	src_off
static __always_inline void off_t userptr_t off_t size_t	len
static __always_inline int off_t	first_off
static __always_inline int off_t userptr_t	second
static __always_inline int off_t userptr_t off_t	second_off
static __always_inline void off_t int	c

Detailed Description

iPXE 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.

Macro Definition Documentation

UACCESS_PREFIX_efi

#define UACCESS_PREFIX_efi   __efi_

Definition at line 18 of file efi_uaccess.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

UACCESS_INLINE() [1/12]

static __always_inline userptr_t UACCESS_INLINE ( efi  , phys_to_user    )

inlinestatic

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.

                                                                 {
        return phys_addr;
}

UACCESS_INLINE() [2/12]

static __always_inline unsigned long UACCESS_INLINE ( efi  , user_to_phys    )

inlinestatic

Convert user buffer to physical address.

Parameters

userptr	User pointer
offset	Offset from user pointer

Return values

phys_addr

Physical address

UACCESS_INLINE() [3/12]

static __always_inline userptr_t UACCESS_INLINE ( efi  , virt_to_user    ) const volatile

inlinestatic

Definition at line 45 of file efi_uaccess.h.

                                                                   {
        return trivial_virt_to_user ( addr );
}

References addr, and trivial_virt_to_user().

UACCESS_INLINE() [4/12]

static __always_inline void* UACCESS_INLINE ( efi  , user_to_virt    )

inlinestatic

UACCESS_INLINE() [5/12]

static __always_inline userptr_t UACCESS_INLINE ( efi  , userptr_add    )

inlinestatic

UACCESS_INLINE() [6/12]

static __always_inline off_t UACCESS_INLINE ( efi  , userptr_sub    )

inlinestatic

UACCESS_INLINE() [7/12]

static __always_inline void UACCESS_INLINE ( efi  , memcpy_user    )

inlinestatic

UACCESS_INLINE() [8/12]

static __always_inline void UACCESS_INLINE ( efi  , memmove_user    )

inlinestatic

UACCESS_INLINE() [9/12]

static __always_inline int UACCESS_INLINE ( efi  , memcmp_user    )

inlinestatic

UACCESS_INLINE() [10/12]

static __always_inline void UACCESS_INLINE ( efi  , memset_user    )

inlinestatic

UACCESS_INLINE() [11/12]

static __always_inline size_t UACCESS_INLINE ( efi  , strlen_user    )

inlinestatic

UACCESS_INLINE() [12/12]

static __always_inline off_t UACCESS_INLINE ( efi  , memchr_user    )

inlinestatic

Variable Documentation

offset

__always_inline off_t off_t offset

Initial value:

{
        return ( userptr + offset )

Definition at line 40 of file efi_uaccess.h.

subtrahend

__always_inline off_t userptr_t subtrahend

Initial value:

{
        return trivial_userptr_sub ( userptr, subtrahend )

Definition at line 61 of file efi_uaccess.h.

Referenced by bigint_subtract_sample(), and trivial_userptr_sub().

dest_off

static __always_inline void off_t dest_off

Definition at line 66 of file efi_uaccess.h.

Referenced by copy_to_real(), copy_to_real_libkir(), copy_to_user(), trivial_memcpy_user(), and trivial_memmove_user().

src

static __always_inline void off_t userptr_t src

Definition at line 66 of file efi_uaccess.h.

Referenced by __attribute__(), __memmove(), aes_decrypt(), aes_encrypt(), aes_unwrap(), aes_wrap(), arc4_skip(), arc4_xor(), bnxt_add_vlan(), bnxt_get_pkt_vlan(), bzimage_parse_header(), cbc_decrypt(), cbc_encrypt(), cbc_xor(), ccmp_ctr_xor(), cipher_decrypt(), cipher_encrypt(), cipher_null_decrypt(), cipher_null_encrypt(), copy_from_user(), copy_to_real(), copy_to_user(), crc32_le(), dhcpv6_rx(), dns_copy(), ecb_decrypt(), ecb_encrypt(), efi_paths(), efi_pxe_udp_write(), efi_undi_fill_header(), efi_undi_receive(), eth_pio_read(), eth_pio_write(), exanic_transmit(), fbcon_draw(), fc_els_rx(), fc_xchg_rx(), gcc_implicit_memcpy(), gcm_decrypt(), gcm_encrypt(), gcm_process(), gcm_xor_block(), gdbstub_from_hex_buf(), gdbstub_to_hex_buf(), generic_memcpy(), generic_memcpy_reverse(), generic_memmove(), hv_wait_for_message(), ipv4_rx(), ipv6_route_okx(), ipv6_rx(), ipv6_tx(), memchr(), memcpy_0(), memcpy_1(), memcpy_10(), memcpy_11(), memcpy_12(), memcpy_13(), memcpy_14(), memcpy_15(), memcpy_16(), memcpy_17(), memcpy_18(), memcpy_19(), memcpy_2(), memcpy_20(), memcpy_21(), memcpy_22(), memcpy_23(), memcpy_24(), memcpy_25(), memcpy_26(), memcpy_27(), memcpy_28(), memcpy_29(), memcpy_3(), memcpy_30(), memcpy_31(), memcpy_4(), memcpy_5(), memcpy_6(), memcpy_7(), memcpy_8(), memcpy_9(), memcpy_test_speed(), memcpy_var(), nii_sync(), shuffle(), strcat(), strchr(), strcpy(), strdup(), string_copy(), string_test_exec(), strlen(), strncpy(), strndup(), strnlen(), strrchr(), trivial_memcpy_user(), trivial_memmove_user(), udp_tx(), and uri_copy_fields().

src_off

static __always_inline void off_t userptr_t off_t src_off

Definition at line 66 of file efi_uaccess.h.

Referenced by copy_from_real(), copy_from_real_libkir(), copy_from_user(), trivial_memcpy_user(), and trivial_memmove_user().

len

__always_inline off_t off_t int size_t len

Initial value:

{
        trivial_memcpy_user ( dest, dest_off, src, src_off, len )

Definition at line 68 of file efi_uaccess.h.

first_off

__always_inline int off_t first_off

Definition at line 80 of file efi_uaccess.h.

Referenced by trivial_memcmp_user().

second

__always_inline int off_t userptr_t second

Definition at line 80 of file efi_uaccess.h.

Referenced by asn1_generalized_time(), dns_compare(), memcmp(), memswap(), strcasecmp(), strcmp(), strncasecmp(), strncmp(), trivial_memcmp_user(), uristrcmp(), vmbus_consume(), vmbus_dump_channel(), and vmbus_produce().

second_off

__always_inline int off_t userptr_t off_t second_off

Definition at line 80 of file efi_uaccess.h.

Referenced by trivial_memcmp_user().

c

__always_inline off_t off_t int c

Definition at line 87 of file efi_uaccess.h.