Differential D28412 Diff 83223 stand/i386/libi386/bootinfo64.c

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stand/i386/libi386/bootinfo64.c

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*		*
* - The 'boothowto' argument is constructed		* - The 'boothowto' argument is constructed
* - The 'bootdev' argument is constructed		* - The 'bootdev' argument is constructed
* - The 'bootinfo' struct is constructed, and copied into the kernel space.		* - The 'bootinfo' struct is constructed, and copied into the kernel space.
* - The kernel environment is copied into kernel space.		* - The kernel environment is copied into kernel space.
* - Module metadata are formatted and placed in kernel space.		* - Module metadata are formatted and placed in kernel space.
*/		*/
int		int
bi_load64(char args, vm_offset_t addr, vm_offset_t modulep,		bi_load64(char args, vm_offset_t modulep,
vm_offset_t *kernendp, int add_smap)		vm_offset_t *kernendp, int add_smap)
{		{
struct preloaded_file xp, kfp;		struct preloaded_file xp, kfp;
struct i386_devdesc *rootdev;		struct i386_devdesc *rootdev;
struct file_metadata *md;		struct file_metadata *md;
uint64_t kernend;		uint64_t kernend;
uint64_t envp;		uint64_t envp;
uint64_t module;		uint64_t module;
		uint64_t addr;
vm_offset_t size;		vm_offset_t size;
char *rootdevname;		char *rootdevname;
int howto;		int howto;

if (!bi_checkcpu()) {		if (!bi_checkcpu()) {
printf("CPU doesn't support long mode\n");		printf("CPU doesn't support long mode\n");
return (EINVAL);		return (EINVAL);
}		}
Show All 10 Lines	return (EINVAL);
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);
}		}

/* Try reading the /etc/fstab file to select the root device */		/* Try reading the /etc/fstab file to select the root device */
getrootmount(i386_fmtdev((void *)rootdev));		getrootmount(i386_fmtdev((void *)rootdev));

if (addr == 0) {		addr = 0;
/* find the last module in the chain */		/* find the last module in the chain */
for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {		for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
if (addr < (xp->f_addr + xp->f_size))		if (addr < (xp->f_addr + xp->f_size))
addr = xp->f_addr + xp->f_size;		addr = xp->f_addr + xp->f_size;
}
}		}
/* pad to a page boundary */		/* pad to a page boundary */
addr = roundup(addr, PAGE_SIZE);		addr = roundup(addr, PAGE_SIZE);

addr = build_font_module(addr);		addr = build_font_module(addr);

/* place the metadata before anything */		/* place the metadata before anything */
module = *modulep = addr;		module = *modulep = addr;
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