1 /*
2  * Copyright (c) 2013 The FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Benno Rice under sponsorship from
6  * the FreeBSD Foundation.
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef	_LOADER_EFI_H
30 #define	_LOADER_EFI_H
31 
32 #include <stand.h>
33 #include <efi.h>
34 #include <efilib.h>
35 #include <sys/multiboot2.h>
36 #include <sys/queue.h>
37 #include <bootstrap.h>
38 
39 struct chunk {
40 	EFI_VIRTUAL_ADDRESS chunk_vaddr;
41 	EFI_PHYSICAL_ADDRESS chunk_paddr;
42 	size_t chunk_size;
43 	STAILQ_ENTRY(chunk) chunk_next;
44 };
45 
46 STAILQ_HEAD(chunk_head, chunk);
47 
48 struct relocator {
49 	vm_offset_t rel_stack;
50 	vm_offset_t rel_copy;
51 	vm_offset_t rel_memmove;
52 	struct chunk_head rel_chunk_head;
53 	struct chunk rel_chunklist[];
54 };
55 
56 int	efi_autoload(void);
57 
58 ssize_t	efi_copyin(const void *, vm_offset_t, const size_t);
59 ssize_t	efi_copyout(const vm_offset_t, void *, const size_t);
60 ssize_t	efi_readin(const int, vm_offset_t, const size_t);
61 vm_offset_t efi_loadaddr(u_int, void *, vm_offset_t);
62 void efi_free_loadaddr(vm_offset_t, size_t);
63 void * efi_translate(vm_offset_t);
64 vm_offset_t efi_physaddr(multiboot_tag_module_t *, vm_offset_t,
65     EFI_MEMORY_DESCRIPTOR *, size_t, UINTN, vm_offset_t, size_t);
66 void bi_isadir(void);
67 
68 multiboot2_info_header_t *efi_copy_finish(struct relocator *);
69 void multiboot_tramp(uint32_t, struct relocator *, uint64_t);
70 
71 void efi_addsmapdata(struct preloaded_file *);
72 
73 #endif	/* _LOADER_EFI_H */
74