1 /*-
2 * Copyright (c) 2006 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28
29 #include <stand.h>
30 #include <string.h>
31
32 #include <sys/param.h>
33 #include <sys/linker.h>
34 #include <machine/elf.h>
35
36 #include <bootstrap.h>
37
38 #include <efi.h>
39 #include <efilib.h>
40
41 #include "loader_efi.h"
42 #include "cache.h"
43
44 #include "platform/acfreebsd.h"
45 #include "acconfig.h"
46 #define ACPI_SYSTEM_XFACE
47 #define ACPI_USE_SYSTEM_INTTYPES
48 #include "actypes.h"
49 #include "actbl.h"
50
51 static EFI_GUID acpi_guid = ACPI_TABLE_GUID;
52 static EFI_GUID acpi20_guid = ACPI_20_TABLE_GUID;
53
54 static int elf64_exec(struct preloaded_file *amp);
55 static int elf64_obj_exec(struct preloaded_file *amp);
56
57 int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp);
58
59 static struct file_format arm64_elf = {
60 elf64_loadfile,
61 elf64_exec
62 };
63
64 struct file_format *file_formats[] = {
65 &arm64_elf,
66 NULL
67 };
68
69 static int
elf64_exec(struct preloaded_file * fp)70 elf64_exec(struct preloaded_file *fp)
71 {
72 vm_offset_t modulep, kernendp;
73 vm_offset_t clean_addr;
74 size_t clean_size;
75 struct file_metadata *md;
76 ACPI_TABLE_RSDP *rsdp;
77 Elf_Ehdr *ehdr;
78 char buf[24];
79 int err, revision;
80 void (*entry)(vm_offset_t);
81
82 rsdp = efi_get_table(&acpi20_guid);
83 if (rsdp == NULL) {
84 rsdp = efi_get_table(&acpi_guid);
85 }
86 if (rsdp != NULL) {
87 sprintf(buf, "0x%016llx", (unsigned long long)rsdp);
88 setenv("hint.acpi.0.rsdp", buf, 1);
89 revision = rsdp->Revision;
90 if (revision == 0)
91 revision = 1;
92 sprintf(buf, "%d", revision);
93 setenv("hint.acpi.0.revision", buf, 1);
94 strncpy(buf, rsdp->OemId, sizeof(rsdp->OemId));
95 buf[sizeof(rsdp->OemId)] = '\0';
96 setenv("hint.acpi.0.oem", buf, 1);
97 sprintf(buf, "0x%016x", rsdp->RsdtPhysicalAddress);
98 setenv("hint.acpi.0.rsdt", buf, 1);
99 if (revision >= 2) {
100 /* XXX extended checksum? */
101 sprintf(buf, "0x%016llx",
102 (unsigned long long)rsdp->XsdtPhysicalAddress);
103 setenv("hint.acpi.0.xsdt", buf, 1);
104 sprintf(buf, "%d", rsdp->Length);
105 setenv("hint.acpi.0.xsdt_length", buf, 1);
106 }
107 }
108
109 if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
110 return (EFTYPE);
111
112 ehdr = (Elf_Ehdr *)&(md->md_data);
113 entry = efi_translate(ehdr->e_entry);
114
115 efi_time_fini();
116 err = bi_load(fp->f_args, &modulep, &kernendp);
117 if (err != 0) {
118 efi_time_init();
119 return (err);
120 }
121
122 dev_cleanup();
123
124 /* Clean D-cache under kernel area and invalidate whole I-cache */
125 clean_addr = (vm_offset_t)efi_translate(fp->f_addr);
126 clean_size = (vm_offset_t)efi_translate(kernendp) - clean_addr;
127
128 cpu_flush_dcache((void *)clean_addr, clean_size);
129 cpu_inval_icache(NULL, 0);
130
131 (*entry)(modulep);
132 panic("exec returned");
133 }
134
135 static int
elf64_obj_exec(struct preloaded_file * fp)136 elf64_obj_exec(struct preloaded_file *fp)
137 {
138
139 printf("%s called for preloaded file %p (=%s):\n", __func__, fp,
140 fp->f_name);
141 return (ENOSYS);
142 }
143
144