diff options
Diffstat (limited to 'stand/efi/loader/arch/i386')
| -rw-r--r-- | stand/efi/loader/arch/i386/bootinfo.c | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/stand/efi/loader/arch/i386/bootinfo.c b/stand/efi/loader/arch/i386/bootinfo.c deleted file mode 100644 index cbd6e4ebe977..000000000000 --- a/stand/efi/loader/arch/i386/bootinfo.c +++ /dev/null @@ -1,275 +0,0 @@ -/*- - * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> - * Copyright (c) 2006 Marcel Moolenaar - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stand.h> -#include <string.h> -#include <sys/param.h> -#include <sys/reboot.h> -#include <sys/linker.h> -#include <sys/boot.h> - -#include <efi.h> -#include <efilib.h> - -#include "bootstrap.h" -#include "libi386.h" -#include <machine/bootinfo.h> - -static const char howto_switches[] = "aCdrgDmphsv"; -static int howto_masks[] = { - RB_ASKNAME, RB_CDROM, RB_KDB, RB_DFLTROOT, RB_GDB, RB_MULTIPLE, - RB_MUTE, RB_PAUSE, RB_SERIAL, RB_SINGLE, RB_VERBOSE -}; - -int -bi_getboothowto(char *kargs) -{ - const char *sw; - char *opts; - int howto, i; - - howto = 0; - - /* Get the boot options from the environment first. */ - for (i = 0; howto_names[i].ev != NULL; i++) { - if (getenv(howto_names[i].ev) != NULL) - howto |= howto_names[i].mask; - } - - /* Parse kargs */ - if (kargs == NULL) - return (howto); - - opts = strchr(kargs, '-'); - while (opts != NULL) { - while (*(++opts) != '\0') { - sw = strchr(howto_switches, *opts); - if (sw == NULL) - break; - howto |= howto_masks[sw - howto_switches]; - } - opts = strchr(opts, '-'); - } - - return (howto); -} - -/* - * Copy the environment into the load area starting at (addr). - * Each variable is formatted as <name>=<value>, with a single nul - * separating each variable, and a double nul terminating the environment. - */ -vm_offset_t -bi_copyenv(vm_offset_t start) -{ - struct env_var *ep; - vm_offset_t addr, last; - size_t len; - - addr = last = start; - - /* Traverse the environment. */ - for (ep = environ; ep != NULL; ep = ep->ev_next) { - len = strlen(ep->ev_name); - if (i386_copyin(ep->ev_name, addr, len) != len) - break; - addr += len; - if (i386_copyin("=", addr, 1) != 1) - break; - addr++; - if (ep->ev_value != NULL) { - len = strlen(ep->ev_value); - if (i386_copyin(ep->ev_value, addr, len) != len) - break; - addr += len; - } - if (i386_copyin("", addr, 1) != 1) - break; - last = ++addr; - } - - if (i386_copyin("", last++, 1) != 1) - last = start; - return(last); -} - -/* - * Copy module-related data into the load area, where it can be - * used as a directory for loaded modules. - * - * Module data is presented in a self-describing format. Each datum - * is preceded by a 32-bit identifier and a 32-bit size field. - * - * Currently, the following data are saved: - * - * MOD_NAME (variable) module name (string) - * MOD_TYPE (variable) module type (string) - * MOD_ARGS (variable) module parameters (string) - * MOD_ADDR sizeof(vm_offset_t) module load address - * MOD_SIZE sizeof(size_t) module size - * MOD_METADATA (variable) type-specific metadata - */ -#define COPY32(v, a) { \ - u_int32_t x = (v); \ - i386_copyin(&x, a, sizeof(x)); \ - a += sizeof(x); \ -} - -#define MOD_STR(t, a, s) { \ - COPY32(t, a); \ - COPY32(strlen(s) + 1, a); \ - i386_copyin(s, a, strlen(s) + 1); \ - a += roundup(strlen(s) + 1, sizeof(u_int64_t));\ -} - -#define MOD_NAME(a, s) MOD_STR(MODINFO_NAME, a, s) -#define MOD_TYPE(a, s) MOD_STR(MODINFO_TYPE, a, s) -#define MOD_ARGS(a, s) MOD_STR(MODINFO_ARGS, a, s) - -#define MOD_VAR(t, a, s) { \ - COPY32(t, a); \ - COPY32(sizeof(s), a); \ - i386_copyin(&s, a, sizeof(s)); \ - a += roundup(sizeof(s), sizeof(u_int64_t)); \ -} - -#define MOD_ADDR(a, s) MOD_VAR(MODINFO_ADDR, a, s) -#define MOD_SIZE(a, s) MOD_VAR(MODINFO_SIZE, a, s) - -#define MOD_METADATA(a, mm) { \ - COPY32(MODINFO_METADATA | mm->md_type, a); \ - COPY32(mm->md_size, a); \ - i386_copyin(mm->md_data, a, mm->md_size); \ - a += roundup(mm->md_size, sizeof(u_int64_t));\ -} - -#define MOD_END(a) { \ - COPY32(MODINFO_END, a); \ - COPY32(0, a); \ -} - -vm_offset_t -bi_copymodules(vm_offset_t addr) -{ - struct preloaded_file *fp; - struct file_metadata *md; - - /* Start with the first module on the list, should be the kernel. */ - for (fp = file_findfile(NULL, NULL); fp != NULL; fp = fp->f_next) { - /* The name field must come first. */ - MOD_NAME(addr, fp->f_name); - MOD_TYPE(addr, fp->f_type); - if (fp->f_args) - MOD_ARGS(addr, fp->f_args); - MOD_ADDR(addr, fp->f_addr); - MOD_SIZE(addr, fp->f_size); - for (md = fp->f_metadata; md != NULL; md = md->md_next) { - if (!(md->md_type & MODINFOMD_NOCOPY)) - MOD_METADATA(addr, md); - } - } - MOD_END(addr); - return(addr); -} - -/* - * Load the information expected by the kernel. - * - * - The kernel environment is copied into kernel space. - * - Module metadata are formatted and placed in kernel space. - */ -int -bi_load(struct preloaded_file *fp, uint64_t *bi_addr) -{ - struct bootinfo bi; - struct preloaded_file *xp; - struct file_metadata *md; - struct devdesc *rootdev; - char *rootdevname; - vm_offset_t addr, ssym, esym; - - bzero(&bi, sizeof(struct bootinfo)); - bi.bi_version = 1; -// bi.bi_boothowto = bi_getboothowto(fp->f_args); - - /* - * Allow the environment variable 'rootdev' to override the supplied - * device. This should perhaps go to MI code and/or have $rootdev - * tested/set by MI code before launching the kernel. - */ - rootdevname = getenv("rootdev"); - i386_getdev((void**)&rootdev, rootdevname, NULL); - if (rootdev != NULL) { - /* Try reading /etc/fstab to select the root device. */ - getrootmount(i386_fmtdev(rootdev)); - free(rootdev); - } - - md = file_findmetadata(fp, MODINFOMD_SSYM); - ssym = (md != NULL) ? *((vm_offset_t *)&(md->md_data)) : 0; - md = file_findmetadata(fp, MODINFOMD_ESYM); - esym = (md != NULL) ? *((vm_offset_t *)&(md->md_data)) : 0; - if (ssym != 0 && esym != 0) { - bi.bi_symtab = ssym; - bi.bi_esymtab = esym; - } - - /* Find the last module in the chain. */ - addr = 0; - for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) { - if (addr < (xp->f_addr + xp->f_size)) - addr = xp->f_addr + xp->f_size; - } - - addr = (addr + 15) & ~15; - - /* Copy module list and metadata. */ - bi.bi_modulep = addr; - addr = bi_copymodules(addr); - if (addr <= bi.bi_modulep) { - addr = bi.bi_modulep; - bi.bi_modulep = 0; - } - - addr = (addr + 15) & ~15; - - /* Copy our environment. */ - bi.bi_envp = addr; - addr = bi_copyenv(addr); - if (addr <= bi.bi_envp) { - addr = bi.bi_envp; - bi.bi_envp = 0; - } - - addr = (addr + PAGE_MASK) & ~PAGE_MASK; - bi.bi_kernend = addr; - - return (ldr_bootinfo(&bi, bi_addr)); -} |