X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fipxe%2Fsrc%2Finclude%2Fipxe%2Fefi%2Fefi_uaccess.h;fp=qemu%2Froms%2Fipxe%2Fsrc%2Finclude%2Fipxe%2Fefi%2Fefi_uaccess.h;h=870a089b25ce933c6f4d5b797c206e98ec105da8;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/ipxe/src/include/ipxe/efi/efi_uaccess.h b/qemu/roms/ipxe/src/include/ipxe/efi/efi_uaccess.h new file mode 100644 index 000000000..870a089b2 --- /dev/null +++ b/qemu/roms/ipxe/src/include/ipxe/efi/efi_uaccess.h @@ -0,0 +1,103 @@ +#ifndef _IPXE_EFI_UACCESS_H +#define _IPXE_EFI_UACCESS_H + +/** @file + * + * 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. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#ifdef UACCESS_EFI +#define UACCESS_PREFIX_efi +#else +#define UACCESS_PREFIX_efi __efi_ +#endif + +/** + * Convert physical address to user pointer + * + * @v phys_addr Physical address + * @ret userptr User pointer + */ +static inline __always_inline userptr_t +UACCESS_INLINE ( efi, phys_to_user ) ( unsigned long phys_addr ) { + return phys_addr; +} + +/** + * Convert user buffer to physical address + * + * @v userptr User pointer + * @v offset Offset from user pointer + * @ret phys_addr Physical address + */ +static inline __always_inline unsigned long +UACCESS_INLINE ( efi, user_to_phys ) ( userptr_t userptr, off_t offset ) { + return ( userptr + offset ); +} + +static inline __always_inline userptr_t +UACCESS_INLINE ( efi, virt_to_user ) ( volatile const void *addr ) { + return trivial_virt_to_user ( addr ); +} + +static inline __always_inline void * +UACCESS_INLINE ( efi, user_to_virt ) ( userptr_t userptr, off_t offset ) { + return trivial_user_to_virt ( userptr, offset ); +} + +static inline __always_inline userptr_t +UACCESS_INLINE ( efi, userptr_add ) ( userptr_t userptr, off_t offset ) { + return trivial_userptr_add ( userptr, offset ); +} + +static inline __always_inline off_t +UACCESS_INLINE ( efi, userptr_sub ) ( userptr_t userptr, + userptr_t subtrahend ) { + return trivial_userptr_sub ( userptr, subtrahend ); +} + +static inline __always_inline void +UACCESS_INLINE ( efi, memcpy_user ) ( userptr_t dest, off_t dest_off, + userptr_t src, off_t src_off, + size_t len ) { + trivial_memcpy_user ( dest, dest_off, src, src_off, len ); +} + +static inline __always_inline void +UACCESS_INLINE ( efi, memmove_user ) ( userptr_t dest, off_t dest_off, + userptr_t src, off_t src_off, + size_t len ) { + trivial_memmove_user ( dest, dest_off, src, src_off, len ); +} + +static inline __always_inline int +UACCESS_INLINE ( efi, memcmp_user ) ( userptr_t first, off_t first_off, + userptr_t second, off_t second_off, + size_t len ) { + return trivial_memcmp_user ( first, first_off, second, second_off, len); +} + +static inline __always_inline void +UACCESS_INLINE ( efi, memset_user ) ( userptr_t buffer, off_t offset, + int c, size_t len ) { + trivial_memset_user ( buffer, offset, c, len ); +} + +static inline __always_inline size_t +UACCESS_INLINE ( efi, strlen_user ) ( userptr_t buffer, off_t offset ) { + return trivial_strlen_user ( buffer, offset ); +} + +static inline __always_inline off_t +UACCESS_INLINE ( efi, memchr_user ) ( userptr_t buffer, off_t offset, + int c, size_t len ) { + return trivial_memchr_user ( buffer, offset, c, len ); +} + +#endif /* _IPXE_EFI_UACCESS_H */