void fsp_verify_memory_init_hobs(void)
{
struct range_entry fsp_mem;
struct range_entry tolum;
/* Lookup the FSP_BOOTLOADER_TOLUM_HOB */
if (fsp_find_bootloader_tolum(&tolum))
die("9.3: FSP_BOOTLOADER_TOLUM_HOB missing!\n");
if (range_entry_size(&tolum) < cbmem_overhead_size()) {
printk(BIOS_CRIT,
"FSP_BOOTLOADER_TOLUM_SIZE: 0x%08llx < 0x%08zx\n",
range_entry_size(&tolum), cbmem_overhead_size());
die("FSP_BOOTLOADER_TOLUM_HOB too small!\n");
}
/* Locate the FSP reserved memory area */
if (fsp_find_reserved_memory(&fsp_mem))
die("9.1: FSP_RESERVED_MEMORY_RESOURCE_HOB missing!\n");
/* Verify the the bootloader tolum is above the FSP reserved area */
if (range_entry_end(&tolum) <= range_entry_base(&fsp_mem)) {
printk(BIOS_CRIT,
"TOLUM end: 0x%08llx != 0x%08llx: FSP rsvd base\n",
range_entry_end(&tolum), range_entry_base(&fsp_mem));
die("FSP reserved region after BIOS TOLUM!\n");
}
if (range_entry_base(&tolum) < range_entry_end(&fsp_mem)) {
printk(BIOS_CRIT,
"TOLUM base: 0x%08llx < 0x%08llx: FSP rsvd end\n",
range_entry_base(&tolum), range_entry_end(&fsp_mem));
die("FSP reserved region overlaps BIOS TOLUM!\n");
}
/* Verify that the FSP reserved area immediately follows the BIOS
* reserved area
*/
if (range_entry_base(&tolum) != range_entry_end(&fsp_mem)) {
printk(BIOS_CRIT,
"TOLUM base: 0x%08llx != 0x%08llx: FSP rsvd end\n",
range_entry_base(&tolum), range_entry_end(&fsp_mem));
die("Space between FSP reserved region and BIOS TOLUM!\n");
}
if (range_entry_end(&tolum) != (uintptr_t)cbmem_top()) {
printk(BIOS_CRIT, "TOLUM end: 0x%08llx != 0x%p: cbmem_top\n",
range_entry_end(&tolum), cbmem_top());
die("Space between cbmem_top and BIOS TOLUM!\n");
}
}
static enum cb_err check_region_overlap(const struct memranges *ranges,
const char *description,
uintptr_t begin, uintptr_t end)
{
const struct range_entry *r;
memranges_each_entry(r, ranges) {
if (end <= range_entry_base(r))
continue;
if (begin >= range_entry_end(r))
continue;
printk(BIOS_CRIT, "'%s' overlaps currently running program: "
"[%p, %p)\n", description, (void *)begin, (void *)end);
return CB_ERR;
}
return CB_SUCCESS;
}