Differential D9575 Diff 26909 head/sys/boot/i386/libi386/bootinfo32.c

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head/sys/boot/i386/libi386/bootinfo32.c

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#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <stand.h>		#include <stand.h>
#include <sys/param.h>		#include <sys/param.h>
#include <sys/reboot.h>		#include <sys/reboot.h>
#include <sys/linker.h>		#include <sys/linker.h>
#include <machine/bootinfo.h>		#include <machine/bootinfo.h>
		#include <machine/metadata.h>
#include "bootstrap.h"		#include "bootstrap.h"
#include "libi386.h"		#include "libi386.h"
#include "btxv86.h"		#include "btxv86.h"

		#ifdef LOADER_GELI_SUPPORT
		#include "geliboot.h"

		static const size_t keybuf_size = sizeof(struct keybuf) +
		(GELI_MAX_KEYS * sizeof(struct keybuf_ent));
		#endif

static struct bootinfo bi;		static struct bootinfo bi;

/*		/*
* Copy module-related data into the load area, where it can be		* Copy module-related data into the load area, where it can be
* used as a directory for loaded modules.		* used as a directory for loaded modules.
*		*
* Module data is presented in a self-describing format. Each datum		* Module data is presented in a self-describing format. Each datum
* is preceded by a 32-bit identifier and a 32-bit size field.		* is preceded by a 32-bit identifier and a 32-bit size field.
▲ Show 20 Lines • Show All 94 Lines • ▼ Show 20 Lines	bi_load32(char args, int howtop, int bootdevp, vm_offset_t bip, vm_offset_t modulep, vm_offset_t kernendp)
vm_offset_t kernend;		vm_offset_t kernend;
vm_offset_t envp;		vm_offset_t envp;
vm_offset_t size;		vm_offset_t size;
vm_offset_t ssym, esym;		vm_offset_t ssym, esym;
char *rootdevname;		char *rootdevname;
int bootdevnr, i, howto;		int bootdevnr, i, howto;
char *kernelname;		char *kernelname;
const char *kernelpath;		const char *kernelpath;
		#ifdef LOADER_GELI_SUPPORT
		char buf[keybuf_size];
		struct keybuf keybuf = (struct keybuf )buf;
		#endif

howto = bi_getboothowto(args);		howto = bi_getboothowto(args);

/*		/*
* Allow the environment variable 'rootdev' to override the supplied device		* Allow the environment variable 'rootdev' to override the supplied device
* This should perhaps go to MI code and/or have $rootdev tested/set by		* This should perhaps go to MI code and/or have $rootdev tested/set by
* MI code before launching the kernel.		* MI code before launching the kernel.
*/		*/
rootdevname = getenv("rootdev");		rootdevname = getenv("rootdev");
i386_getdev((void **)(&rootdev), rootdevname, NULL);		i386_getdev((void **)(&rootdev), rootdevname, NULL);
if (rootdev == NULL) { /* bad $rootdev/$currdev */		if (rootdev == NULL) { /* bad $rootdev/$currdev */
printf("can't determine root device\n");		printf("can't determine root device\n");
return(EINVAL);		return(EINVAL);
Show All 18 Lines	#endif
/* pass in the BIOS device number of the current disk */		/* pass in the BIOS device number of the current disk */
bi.bi_bios_dev = bd_unit2bios(rootdev->d_unit);		bi.bi_bios_dev = bd_unit2bios(rootdev->d_unit);
bootdevnr = bd_getdev(rootdev);		bootdevnr = bd_getdev(rootdev);
break;		break;

case DEVT_NET:		case DEVT_NET:
case DEVT_ZFS:		case DEVT_ZFS:
break;		break;

default:		default:
printf("WARNING - don't know how to boot from device type %d\n", rootdev->d_type);		printf("WARNING - don't know how to boot from device type %d\n", rootdev->d_type);
}		}
if (bootdevnr == -1) {		if (bootdevnr == -1) {
printf("root device %s invalid\n", i386_fmtdev(rootdev));		printf("root device %s invalid\n", i386_fmtdev(rootdev));
return (EINVAL);		return (EINVAL);
}		}
free(rootdev);		free(rootdev);
Show All 19 Lines	if (kfp == NULL)
kfp = file_findfile(NULL, "elf32 kernel");		kfp = file_findfile(NULL, "elf32 kernel");
if (kfp == NULL)		if (kfp == NULL)
panic("can't find kernel file");		panic("can't find kernel file");
kernend = 0; /* fill it in later */		kernend = 0; /* fill it in later */
file_addmetadata(kfp, MODINFOMD_HOWTO, sizeof howto, &howto);		file_addmetadata(kfp, MODINFOMD_HOWTO, sizeof howto, &howto);
file_addmetadata(kfp, MODINFOMD_ENVP, sizeof envp, &envp);		file_addmetadata(kfp, MODINFOMD_ENVP, sizeof envp, &envp);
file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof kernend, &kernend);		file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof kernend, &kernend);
bios_addsmapdata(kfp);		bios_addsmapdata(kfp);
		#ifdef LOADER_GELI_SUPPORT
		geli_fill_keybuf(keybuf);
		file_addmetadata(kfp, MODINFOMD_KEYBUF, keybuf_size, buf);
		bzero(buf, sizeof(buf));
		#endif

/* Figure out the size and location of the metadata */		/* Figure out the size and location of the metadata */
*modulep = addr;		*modulep = addr;
size = bi_copymodules32(0);		size = bi_copymodules32(0);
kernend = roundup(addr + size, PAGE_SIZE);		kernend = roundup(addr + size, PAGE_SIZE);
*kernendp = kernend;		*kernendp = kernend;

/* patch MODINFOMD_KERNEND */		/* patch MODINFOMD_KERNEND */
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