diff --git a/stand/i386/libi386/bootinfo32.c b/stand/i386/libi386/bootinfo32.c index 372bced917d6..37a797289f2b 100644 --- a/stand/i386/libi386/bootinfo32.c +++ b/stand/i386/libi386/bootinfo32.c @@ -1,193 +1,194 @@ /*- * Copyright (c) 1998 Michael Smith * 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 __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include "bootstrap.h" #include "modinfo.h" #include "libi386.h" #include "btxv86.h" #ifdef LOADER_GELI_SUPPORT #include "geliboot.h" #endif -static struct bootinfo bi; +static struct bootinfo *bi; /* * Load the information expected by an i386 kernel. * * - The 'boothowto' argument is constructed * - The 'bootdev' argument is constructed * - The 'bootinfo' struct is constructed, and copied into the kernel space. * - The kernel environment is copied into kernel space. * - Module metadata are formatted and placed in kernel space. */ int bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, vm_offset_t *modulep, vm_offset_t *kernendp) { struct preloaded_file *xp, *kfp; struct i386_devdesc *rootdev; struct file_metadata *md; vm_offset_t addr; vm_offset_t kernend; vm_offset_t envp; vm_offset_t size; vm_offset_t ssym, esym; char *rootdevname; int bootdevnr, i, howto; char *kernelname; const char *kernelpath; howto = bi_getboothowto(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) { /* bad $rootdev/$currdev */ printf("can't determine root device\n"); return(EINVAL); } /* Try reading the /etc/fstab file to select the root device */ getrootmount(devformat(&rootdev->dd)); /* Do legacy rootdev guessing */ /* XXX - use a default bootdev of 0. Is this ok??? */ bootdevnr = 0; + bi = calloc(sizeof(*bi), 1); switch(rootdev->dd.d_dev->dv_type) { case DEVT_CD: case DEVT_DISK: /* pass in the BIOS device number of the current disk */ - bi.bi_bios_dev = bd_unit2bios(rootdev); + bi->bi_bios_dev = bd_unit2bios(rootdev); bootdevnr = bd_getdev(rootdev); break; case DEVT_NET: case DEVT_ZFS: break; default: printf("WARNING - don't know how to boot from device type %d\n", rootdev->dd.d_dev->dv_type); } if (bootdevnr == -1) { printf("root device %s invalid\n", devformat(&rootdev->dd)); return (EINVAL); } free(rootdev); /* 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; } /* pad to a page boundary */ addr = roundup(addr, PAGE_SIZE); addr = build_font_module(addr); /* copy our environment */ envp = addr; addr = md_copyenv(addr); /* pad to a page boundary */ addr = roundup(addr, PAGE_SIZE); kfp = file_findfile(NULL, "elf kernel"); if (kfp == NULL) kfp = file_findfile(NULL, "elf32 kernel"); if (kfp == NULL) panic("can't find kernel file"); kernend = 0; /* fill it in later */ file_addmetadata(kfp, MODINFOMD_HOWTO, sizeof howto, &howto); file_addmetadata(kfp, MODINFOMD_ENVP, sizeof envp, &envp); file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof kernend, &kernend); bios_addsmapdata(kfp); #ifdef LOADER_GELI_SUPPORT geli_export_key_metadata(kfp); #endif bi_load_vbe_data(kfp); /* Figure out the size and location of the metadata */ *modulep = addr; size = md_copymodules(0, false); kernend = roundup(addr + size, PAGE_SIZE); *kernendp = kernend; /* patch MODINFOMD_KERNEND */ md = file_findmetadata(kfp, MODINFOMD_KERNEND); bcopy(&kernend, md->md_data, sizeof kernend); /* copy module list and metadata */ (void)md_copymodules(addr, false); ssym = esym = 0; md = file_findmetadata(kfp, MODINFOMD_SSYM); if (md != NULL) ssym = *((vm_offset_t *)&(md->md_data)); md = file_findmetadata(kfp, MODINFOMD_ESYM); if (md != NULL) esym = *((vm_offset_t *)&(md->md_data)); if (ssym == 0 || esym == 0) ssym = esym = 0; /* sanity */ /* legacy bootinfo structure */ kernelname = getenv("kernelname"); i386_getdev(NULL, kernelname, &kernelpath); - bi.bi_version = BOOTINFO_VERSION; - bi.bi_size = sizeof(bi); - bi.bi_memsizes_valid = 1; - bi.bi_basemem = bios_basemem / 1024; - bi.bi_extmem = bios_extmem / 1024; - bi.bi_envp = envp; - bi.bi_modulep = *modulep; - bi.bi_kernend = kernend; - bi.bi_kernelname = VTOP(kernelpath); - bi.bi_symtab = ssym; /* XXX this is only the primary kernel symtab */ - bi.bi_esymtab = esym; + bi->bi_version = BOOTINFO_VERSION; + bi->bi_size = sizeof(bi); + bi->bi_memsizes_valid = 1; + bi->bi_basemem = bios_basemem / 1024; + bi->bi_extmem = bios_extmem / 1024; + bi->bi_envp = envp; + bi->bi_modulep = *modulep; + bi->bi_kernend = kernend; + bi->bi_kernelname = VTOP(kernelpath); + bi->bi_symtab = ssym; /* XXX this is only the primary kernel symtab */ + bi->bi_esymtab = esym; /* legacy boot arguments */ *howtop = howto | RB_BOOTINFO; *bootdevp = bootdevnr; - *bip = VTOP(&bi); + *bip = VTOP(bi); return(0); }