1 /* $NetBSD: efibootia32.c,v 1.8 2023/06/19 04:30:27 rin Exp $ */
2
3 /*-
4 * Copyright (c) 2016 Kimihiro Nonaka <nonaka@netbsd.org>
5 * All rights reserved.
6 *
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 REGENTS 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 REGENTS 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 #include "efiboot.h"
30
31 #include <sys/bootblock.h>
32
33 void startprog32_start(physaddr_t, uint32_t, uint32_t *, physaddr_t,
34 physaddr_t, physaddr_t, u_long, void *);
35 extern void (*startprog32)(physaddr_t, uint32_t, uint32_t *, physaddr_t,
36 physaddr_t, physaddr_t, u_long, void *);
37 extern u_int startprog32_size;
38
39 void multiboot32_start(physaddr_t, physaddr_t, uint32_t);
40 extern void (*multiboot32)(physaddr_t, physaddr_t, uint32_t);
41 extern u_int multiboot32_size;
42
43 void
efi_md_init(void)44 efi_md_init(void)
45 {
46 EFI_STATUS status;
47 EFI_PHYSICAL_ADDRESS addr = EFI_ALLOCATE_MAX_ADDRESS;
48 u_int sz = EFI_SIZE_TO_PAGES(startprog32_size);
49
50 addr = EFI_ALLOCATE_MAX_ADDRESS;
51 sz = EFI_SIZE_TO_PAGES(startprog32_size);
52 status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress,
53 EfiLoaderData, sz, &addr);
54 if (EFI_ERROR(status))
55 panic("%s: AllocatePages() failed: %d page(s): %" PRIxMAX,
56 __func__, sz, (uintmax_t)status);
57 startprog32 = (void *)(u_long)addr;
58 CopyMem(startprog32, startprog32_start, startprog32_size);
59
60 addr = EFI_ALLOCATE_MAX_ADDRESS;
61 sz = EFI_SIZE_TO_PAGES(multiboot32_size);
62 status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress,
63 EfiLoaderData, sz, &addr);
64 if (EFI_ERROR(status))
65 panic("%s: AllocatePages() failed: %d page(s): %" PRIxMAX,
66 __func__, sz, (uintmax_t)status);
67 multiboot32 = (void *)(u_long)addr;
68 CopyMem(multiboot32, multiboot32_start, multiboot32_size);
69 }
70
71 /* ARGSUSED */
72 void
startprog(physaddr_t entry,uint32_t argc,uint32_t * argv,physaddr_t sp)73 startprog(physaddr_t entry, uint32_t argc, uint32_t *argv, physaddr_t sp)
74 {
75
76 (*startprog32)(entry, argc, argv,
77 (physaddr_t)startprog32 + startprog32_size,
78 efi_kernel_start, efi_load_start,
79 efi_kernel_size, startprog32);
80 }
81
82 /* ARGSUSED */
83 void
multiboot(physaddr_t entry,physaddr_t header,physaddr_t sp,uint32_t magic)84 multiboot(physaddr_t entry, physaddr_t header, physaddr_t sp, uint32_t magic)
85 {
86 (*multiboot32)(entry, header, magic);
87 }
88