Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / efi / efi_uaccess.h

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 (file)
index 0000000..870a089
--- /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 */