int
ia64_platform_bootinfo(struct bootinfo *bi, struct bootinfo **res)
{
static struct bootinfo bootinfo;
efi_stub_init(bi);
sal_stub_init();
acpi_stub_init();
if (IS_LEGACY_KERNEL())
*res = &bootinfo;
return (0);
}
/*
* 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
ia64_bootinfo(struct preloaded_file *fp, struct bootinfo **res)
{
struct bootinfo bi;
struct preloaded_file *xp;
struct file_metadata *md;
struct devdesc *rootdev;
char *rootdevname;
vm_offset_t addr, ssym, esym;
int error;
*res = NULL;
bzero(&bi, sizeof(struct bootinfo));
bi.bi_magic = BOOTINFO_MAGIC;
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");
ia64_getdev((void**)&rootdev, rootdevname, NULL);
if (rootdev != NULL) {
/* Try reading /etc/fstab to select the root device. */
getrootmount(ia64_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 + 15) & ~15;
bi.bi_kernend = addr;
error = ia64_platform_bootinfo(&bi, res);
if (error)
return (error);
if (IS_LEGACY_KERNEL()) {
if (*res == NULL)
return (EDOOFUS);
bcopy(&bi, *res, sizeof(bi));
return (0);
}
bi.bi_pbvm_pgtbl = (uintptr_t)ia64_pgtbl;
bi.bi_pbvm_pgtblsz = ia64_pgtblsz;
ia64_copyin((void *)bi.bi_memmap, addr, bi.bi_memmap_size);
bi.bi_memmap = addr;
addr = (addr + bi.bi_memmap_size + 15) & ~15;
bi.bi_kernend = addr + sizeof(bi);
ia64_copyin(&bi, addr, sizeof(bi));
*res = (void *)addr;
return (0);
}