limine/common/protos/limine.c

856 lines
26 KiB
C

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <config.h>
#include <protos/stivale.h>
#include <protos/stivale2.h>
#include <lib/elf.h>
#include <lib/blib.h>
#include <lib/acpi.h>
#include <lib/config.h>
#include <lib/time.h>
#include <lib/print.h>
#include <lib/real.h>
#include <lib/libc.h>
#include <lib/gterm.h>
#include <lib/uri.h>
#include <sys/smp.h>
#include <sys/cpu.h>
#include <sys/gdt.h>
#include <lib/fb.h>
#include <lib/term.h>
#include <sys/pic.h>
#include <sys/lapic.h>
#include <fs/file.h>
#include <mm/pmm.h>
#include <stivale2.h>
#include <pxe/tftp.h>
#include <drivers/edid.h>
#include <drivers/vga_textmode.h>
#include <lib/rand.h>
#define LIMINE_NO_POINTERS
#include <protos/limine.h>
#include <limine.h>
#define MAX_REQUESTS 128
#define MAX_MEMMAP 256
static uint64_t physical_base, virtual_base, slide, direct_map_offset;
static size_t requests_count;
static void **requests;
static uint64_t reported_addr(void *addr) {
return (uint64_t)(uintptr_t)addr + direct_map_offset;
}
static struct limine_file get_file(struct file_handle *file, char *cmdline) {
struct limine_file ret = {0};
if (file->pxe) {
ret.media_type = LIMINE_MEDIA_TYPE_TFTP;
ret.tftp_ip = file->pxe_ip;
ret.tftp_port = file->pxe_port;
} else {
struct volume *vol = file->vol;
if (vol->is_optical) {
ret.media_type = LIMINE_MEDIA_TYPE_OPTICAL;
}
ret.partition_index = vol->partition;
ret.mbr_disk_id = mbr_get_id(vol);
if (vol->guid_valid) {
memcpy(&ret.part_uuid, &vol->guid, sizeof(struct limine_uuid));
}
if (vol->part_guid_valid) {
memcpy(&ret.gpt_part_uuid, &vol->part_guid, sizeof(struct limine_uuid));
}
struct guid gpt_disk_uuid;
if (gpt_get_guid(&gpt_disk_uuid, vol->backing_dev ?: vol) == true) {
memcpy(&ret.gpt_disk_uuid, &gpt_disk_uuid, sizeof(struct limine_uuid));
}
}
char *path = ext_mem_alloc(strlen(file->path) + 1);
strcpy(path, file->path);
ret.path = reported_addr(path);
ret.address = reported_addr(freadall(file, MEMMAP_KERNEL_AND_MODULES));
ret.size = file->size;
ret.cmdline = reported_addr(cmdline);
return ret;
}
static void *_get_request(uint64_t id[4]) {
for (size_t i = 0; i < requests_count; i++) {
uint64_t *p = requests[i];
if (p[2] != id[2]) {
continue;
}
if (p[3] != id[3]) {
continue;
}
return p;
}
return NULL;
}
#define get_request(REQ) _get_request((uint64_t[4])REQ)
#define FEAT_START do {
#define FEAT_END } while (0);
#if defined (__i386__)
extern symbol stivale2_term_write_entry;
extern void *stivale2_rt_stack;
extern uint64_t stivale2_term_callback_ptr;
extern uint64_t stivale2_term_write_ptr;
void stivale2_term_callback(uint64_t, uint64_t, uint64_t, uint64_t, uint64_t);
#endif
static void term_write_shim(uint64_t context, uint64_t buf, uint64_t count) {
(void)context;
term_write(buf, count);
}
bool limine_load(char *config, char *cmdline) {
uint32_t eax, ebx, ecx, edx;
char *kernel_path = config_get_value(config, 0, "KERNEL_PATH");
if (kernel_path == NULL)
panic(true, "limine: KERNEL_PATH not specified");
struct file_handle *kernel_file;
if ((kernel_file = uri_open(kernel_path)) == NULL)
panic(true, "limine: Failed to open kernel with path `%s`. Is the path correct?", kernel_path);
uint8_t *kernel = freadall(kernel_file, MEMMAP_BOOTLOADER_RECLAIMABLE);
char *kaslr_s = config_get_value(config, 0, "KASLR");
bool kaslr = true;
if (kaslr_s != NULL && strcmp(kaslr_s, "no") == 0)
kaslr = false;
int bits = elf_bits(kernel);
if (bits == -1 || bits == 32) {
printv("limine: Kernel in unrecognised format");
return false;
}
// ELF loading
uint64_t entry_point = 0;
struct elf_range *ranges;
uint64_t ranges_count;
uint64_t image_size;
bool is_reloc;
if (elf64_load(kernel, &entry_point, NULL, &slide,
MEMMAP_KERNEL_AND_MODULES, kaslr, false,
&ranges, &ranges_count,
true, &physical_base, &virtual_base, &image_size,
&is_reloc)) {
return false;
}
kaslr = is_reloc;
// Load requests
if (elf64_load_section(kernel, &requests, ".limine_reqs", 0, slide) == 0) {
for (size_t i = 0; ; i++) {
if (requests[i] == NULL) {
break;
}
requests[i] -= virtual_base;
requests[i] += physical_base;
requests_count++;
}
} else {
requests = ext_mem_alloc(MAX_REQUESTS * sizeof(void *));
requests_count = 0;
uint64_t common_magic[2] = { LIMINE_COMMON_MAGIC };
for (size_t i = 0; i < ALIGN_DOWN(image_size, 8); i += 8) {
uint64_t *p = (void *)(uintptr_t)physical_base + i;
if (p[0] != common_magic[0]) {
continue;
}
if (p[1] != common_magic[1]) {
continue;
}
if (requests_count == MAX_REQUESTS) {
panic(true, "limine: Maximum requests exceeded");
}
// Check for a conflict
if (_get_request(p) != NULL) {
panic(true, "limine: Conflict detected for request ID %X %X", p[2], p[3]);
}
requests[requests_count++] = p;
}
}
if (requests_count == 0) {
return false;
}
// Check if 64 bit CPU
if (!cpuid(0x80000001, 0, &eax, &ebx, &ecx, &edx) || !(edx & (1 << 29))) {
panic(true, "limine: This CPU does not support 64-bit mode.");
}
print("limine: Loading kernel `%s`...\n", kernel_path);
printv("limine: Physical base: %X\n", physical_base);
printv("limine: Virtual base: %X\n", virtual_base);
printv("limine: Slide: %X\n", slide);
printv("limine: ELF entry point: %X\n", entry_point);
printv("limine: Requests count: %u\n", requests_count);
// 5 level paging feature & HHDM slide
bool want_5lv;
FEAT_START
// Check if 5-level paging is available
bool level5pg = false;
if (cpuid(0x00000007, 0, &eax, &ebx, &ecx, &edx) && (ecx & (1 << 16))) {
printv("limine: CPU has 5-level paging support\n");
level5pg = true;
}
struct limine_5_level_paging_request *lv5pg_request = get_request(LIMINE_5_LEVEL_PAGING_REQUEST);
want_5lv = lv5pg_request != NULL && level5pg;
direct_map_offset = want_5lv ? 0xff00000000000000 : 0xffff800000000000;
if (kaslr) {
direct_map_offset += (rand64() & ~((uint64_t)0x40000000 - 1)) & 0xfffffffffff;
}
if (want_5lv) {
void *lv5pg_response = ext_mem_alloc(sizeof(struct limine_5_level_paging_response));
lv5pg_request->response = reported_addr(lv5pg_response);
}
FEAT_END
struct limine_file *kf = ext_mem_alloc(sizeof(struct limine_file));
*kf = get_file(kernel_file, cmdline);
fclose(kernel_file);
// Entry point feature
FEAT_START
struct limine_entry_point_request *entrypoint_request = get_request(LIMINE_ENTRY_POINT_REQUEST);
if (entrypoint_request == NULL) {
break;
}
entry_point = entrypoint_request->entry;
printv("limine: Entry point at %X\n", entry_point);
struct limine_entry_point_response *entrypoint_response =
ext_mem_alloc(sizeof(struct limine_entry_point_response));
entrypoint_request->response = reported_addr(entrypoint_response);
FEAT_END
// Bootloader info feature
FEAT_START
struct limine_bootloader_info_request *bootloader_info_request = get_request(LIMINE_BOOTLOADER_INFO_REQUEST);
if (bootloader_info_request == NULL) {
break; // next feature
}
struct limine_bootloader_info_response *bootloader_info_response =
ext_mem_alloc(sizeof(struct limine_bootloader_info_response));
bootloader_info_response->name = reported_addr("Limine");
bootloader_info_response->version = reported_addr(LIMINE_VERSION);
bootloader_info_request->response = reported_addr(bootloader_info_response);
FEAT_END
// Kernel address feature
FEAT_START
struct limine_kernel_address_request *kernel_address_request = get_request(LIMINE_KERNEL_ADDRESS_REQUEST);
if (kernel_address_request == NULL) {
break; // next feature
}
struct limine_kernel_address_response *kernel_address_response =
ext_mem_alloc(sizeof(struct limine_kernel_address_response));
kernel_address_response->physical_base = physical_base;
kernel_address_response->virtual_base = virtual_base;
kernel_address_request->response = reported_addr(kernel_address_response);
FEAT_END
// HHDM feature
FEAT_START
struct limine_hhdm_request *hhdm_request = get_request(LIMINE_HHDM_REQUEST);
if (hhdm_request == NULL) {
break; // next feature
}
struct limine_hhdm_response *hhdm_response =
ext_mem_alloc(sizeof(struct limine_hhdm_response));
hhdm_response->offset = direct_map_offset;
hhdm_request->response = reported_addr(hhdm_response);
FEAT_END
// RSDP feature
FEAT_START
struct limine_rsdp_request *rsdp_request = get_request(LIMINE_RSDP_REQUEST);
if (rsdp_request == NULL) {
break; // next feature
}
struct limine_rsdp_response *rsdp_response =
ext_mem_alloc(sizeof(struct limine_rsdp_response));
void *rsdp = acpi_get_rsdp();
if (rsdp) {
rsdp_response->address = reported_addr(rsdp);
}
rsdp_request->response = reported_addr(rsdp_response);
FEAT_END
// SMBIOS feature
FEAT_START
struct limine_smbios_request *smbios_request = get_request(LIMINE_SMBIOS_REQUEST);
if (smbios_request == NULL) {
break; // next feature
}
struct limine_smbios_response *smbios_response =
ext_mem_alloc(sizeof(struct limine_smbios_response));
void *smbios_entry_32 = NULL, *smbios_entry_64 = NULL;
acpi_get_smbios(&smbios_entry_32, &smbios_entry_64);
if (smbios_entry_32) {
smbios_response->entry_32 = reported_addr(smbios_entry_32);
}
if (smbios_entry_64) {
smbios_response->entry_64 = reported_addr(smbios_entry_64);
}
smbios_request->response = reported_addr(smbios_response);
FEAT_END
#if uefi == 1
// EFI system table feature
FEAT_START
struct limine_efi_system_table_request *est_request = get_request(LIMINE_EFI_SYSTEM_TABLE_REQUEST);
if (est_request == NULL) {
break; // next feature
}
struct limine_efi_system_table_response *est_response =
ext_mem_alloc(sizeof(struct limine_efi_system_table_response));
est_response->address = reported_addr(gST);
est_request->response = reported_addr(est_response);
FEAT_END
#endif
// Stack size
uint64_t stack_size = 65536;
FEAT_START
struct limine_stack_size_request *stack_size_request = get_request(LIMINE_STACK_SIZE_REQUEST);
if (stack_size_request == NULL) {
break; // next feature
}
struct limine_stack_size_response *stack_size_response =
ext_mem_alloc(sizeof(struct limine_stack_size_response));
if (stack_size_request->stack_size > stack_size) {
stack_size = stack_size_request->stack_size;
}
stack_size_request->response = reported_addr(stack_size_response);
FEAT_END
// Kernel file
FEAT_START
struct limine_kernel_file_request *kernel_file_request = get_request(LIMINE_KERNEL_FILE_REQUEST);
if (kernel_file_request == NULL) {
break; // next feature
}
struct limine_kernel_file_response *kernel_file_response =
ext_mem_alloc(sizeof(struct limine_kernel_file_response));
kernel_file_response->kernel_file = reported_addr(kf);
kernel_file_request->response = reported_addr(kernel_file_response);
FEAT_END
// Modules
FEAT_START
struct limine_module_request *module_request = get_request(LIMINE_MODULE_REQUEST);
if (module_request == NULL) {
break; // next feature
}
size_t module_count;
for (module_count = 0; ; module_count++) {
char *module_file = config_get_value(config, module_count, "MODULE_PATH");
if (module_file == NULL)
break;
}
if (module_count == 0) {
break;
}
struct limine_module_response *module_response =
ext_mem_alloc(sizeof(struct limine_module_response));
struct limine_file *modules = ext_mem_alloc(module_count * sizeof(struct limine_file));
for (size_t i = 0; i < module_count; i++) {
struct conf_tuple conf_tuple =
config_get_tuple(config, i,
"MODULE_PATH", "MODULE_CMDLINE");
char *module_path = conf_tuple.value1;
char *module_cmdline = conf_tuple.value2;
if (module_cmdline == NULL) {
module_cmdline = "";
}
print("limine: Loading module `%s`...\n", module_path);
struct file_handle *f;
if ((f = uri_open(module_path)) == NULL)
panic(true, "limine: Failed to open module with path `%s`. Is the path correct?", module_path);
struct limine_file *l = &modules[i];
*l = get_file(f, module_cmdline);
fclose(f);
}
uint64_t *modules_list = ext_mem_alloc(module_count * sizeof(uint64_t));
for (size_t i = 0; i < module_count; i++) {
modules_list[i] = reported_addr(&modules[i]);
}
module_response->module_count = module_count;
module_response->modules = reported_addr(modules_list);
module_request->response = reported_addr(module_response);
FEAT_END
size_t req_width = 0, req_height = 0, req_bpp = 0;
char *resolution = config_get_value(config, 0, "RESOLUTION");
if (resolution != NULL) {
parse_resolution(&req_width, &req_height, &req_bpp, resolution);
}
struct fb_info fb;
uint64_t *term_fb_ptr = NULL;
uint64_t *term_fb_legacy_ptr = NULL;
// Terminal feature
FEAT_START
struct limine_terminal_request *terminal_request = get_request(LIMINE_TERMINAL_REQUEST);
if (terminal_request == NULL) {
break; // next feature
}
struct limine_terminal_response *terminal_response =
ext_mem_alloc(sizeof(struct limine_terminal_response));
struct limine_terminal *terminal = ext_mem_alloc(sizeof(struct limine_terminal));
quiet = false;
serial = false;
term_vbe(req_width, req_height);
if (current_video_mode < 0) {
panic(true, "limine: Failed to initialise terminal");
}
fb = fbinfo;
if (terminal_request->callback != 0) {
#if defined (__i386__)
term_callback = stivale2_term_callback;
stivale2_term_callback_ptr = terminal_request->callback;
#elif defined (__x86_64__)
term_callback = (void *)terminal_request->callback;
#endif
}
term_arg = reported_addr(terminal);
#if defined (__i386__)
if (stivale2_rt_stack == NULL) {
stivale2_rt_stack = ext_mem_alloc(16384) + 16384;
}
stivale2_term_write_ptr = (uintptr_t)term_write_shim;
terminal_response->write = (uintptr_t)(void *)stivale2_term_write_entry;
#elif defined (__x86_64__)
terminal_response->write = (uintptr_t)term_write_shim;
#endif
term_fb_ptr = &terminal->framebuffer;
terminal->columns = term_cols;
terminal->rows = term_rows;
uint64_t *term_list = ext_mem_alloc(1 * sizeof(uint64_t));
term_list[0] = reported_addr(terminal);
terminal_response->terminal_count = 1;
terminal_response->terminals = reported_addr(term_list);
terminal_request->response = reported_addr(terminal_response);
goto skip_fb_init;
FEAT_END
// Terminal feature (legacy)
FEAT_START
struct limine_terminal_legacy_request *terminal_request = get_request(LIMINE_TERMINAL_LEGACY_REQUEST);
if (term_fb_ptr != NULL || terminal_request == NULL) {
break; // next feature
}
struct limine_terminal_legacy_response *terminal_response =
ext_mem_alloc(sizeof(struct limine_terminal_legacy_response));
struct limine_terminal_legacy *terminal = ext_mem_alloc(sizeof(struct limine_terminal_legacy));
quiet = false;
serial = false;
term_vbe(req_width, req_height);
if (current_video_mode < 0) {
panic(true, "limine: Failed to initialise terminal");
}
fb = fbinfo;
if (terminal_request->callback != 0) {
#if defined (__i386__)
term_callback = stivale2_term_callback;
stivale2_term_callback_ptr = terminal_request->callback;
#elif defined (__x86_64__)
term_callback = (void *)terminal_request->callback;
#endif
}
term_arg = reported_addr(terminal);
#if defined (__i386__)
if (stivale2_rt_stack == NULL) {
stivale2_rt_stack = ext_mem_alloc(16384) + 16384;
}
stivale2_term_write_ptr = (uintptr_t)term_write_shim;
terminal_response->write = (uintptr_t)(void *)stivale2_term_write_entry;
#elif defined (__x86_64__)
terminal_response->write = (uintptr_t)term_write_shim;
#endif
term_fb_legacy_ptr = &terminal->framebuffer;
terminal->columns = term_cols;
terminal->rows = term_rows;
uint64_t *term_list = ext_mem_alloc(1 * sizeof(uint64_t));
term_list[0] = reported_addr(terminal);
terminal_response->terminal_count = 1;
terminal_response->terminals = reported_addr(term_list);
terminal_request->response = reported_addr(terminal_response);
goto skip_fb_init;
FEAT_END
term_deinit();
if (!fb_init(&fb, req_width, req_height, req_bpp)) {
panic(true, "limine: Could not acquire framebuffer");
}
skip_fb_init:
memmap_alloc_range(fb.framebuffer_addr,
(uint64_t)fb.framebuffer_pitch * fb.framebuffer_height,
MEMMAP_FRAMEBUFFER, false, false, false, true);
// Framebuffer feature
FEAT_START
// For now we only support 1 framebuffer
struct limine_framebuffer *fbp = ext_mem_alloc(sizeof(struct limine_framebuffer));
if (term_fb_ptr != NULL) {
*term_fb_ptr = reported_addr(fbp);
}
struct limine_framebuffer_request *framebuffer_request = get_request(LIMINE_FRAMEBUFFER_REQUEST);
if (framebuffer_request == NULL) {
break; // next feature
}
struct limine_framebuffer_response *framebuffer_response =
ext_mem_alloc(sizeof(struct limine_framebuffer_response));
struct edid_info_struct *edid_info = get_edid_info();
if (edid_info != NULL) {
fbp->edid_size = sizeof(struct edid_info_struct);
fbp->edid = reported_addr(edid_info);
}
fbp->memory_model = LIMINE_FRAMEBUFFER_RGB;
fbp->address = reported_addr((void *)(uintptr_t)fb.framebuffer_addr);
fbp->width = fb.framebuffer_width;
fbp->height = fb.framebuffer_height;
fbp->bpp = fb.framebuffer_bpp;
fbp->pitch = fb.framebuffer_pitch;
fbp->red_mask_size = fb.red_mask_size;
fbp->red_mask_shift = fb.red_mask_shift;
fbp->green_mask_size = fb.green_mask_size;
fbp->green_mask_shift = fb.green_mask_shift;
fbp->blue_mask_size = fb.blue_mask_size;
fbp->blue_mask_shift = fb.blue_mask_shift;
uint64_t *fb_list = ext_mem_alloc(1 * sizeof(uint64_t));
fb_list[0] = reported_addr(fbp);
framebuffer_response->framebuffer_count = 1;
framebuffer_response->framebuffers = reported_addr(fb_list);
framebuffer_request->response = reported_addr(framebuffer_response);
FEAT_END
// Framebuffer feature (legacy)
FEAT_START
// For now we only support 1 framebuffer
struct limine_framebuffer_legacy *fbp = ext_mem_alloc(sizeof(struct limine_framebuffer_legacy));
if (term_fb_legacy_ptr != NULL) {
*term_fb_legacy_ptr = reported_addr(fbp);
}
struct limine_framebuffer_legacy_request *framebuffer_request = get_request(LIMINE_FRAMEBUFFER_LEGACY_REQUEST);
if (framebuffer_request == NULL) {
break; // next feature
}
struct limine_framebuffer_legacy_response *framebuffer_response =
ext_mem_alloc(sizeof(struct limine_framebuffer_legacy_response));
struct edid_info_struct *edid_info = get_edid_info();
if (edid_info != NULL) {
fbp->edid_size = sizeof(struct edid_info_struct);
fbp->edid = reported_addr(edid_info);
}
fbp->memory_model = LIMINE_FRAMEBUFFER_RGB;
fbp->address = reported_addr((void *)(uintptr_t)fb.framebuffer_addr);
fbp->width = fb.framebuffer_width;
fbp->height = fb.framebuffer_height;
fbp->bpp = fb.framebuffer_bpp;
fbp->pitch = fb.framebuffer_pitch;
fbp->red_mask_size = fb.red_mask_size;
fbp->red_mask_shift = fb.red_mask_shift;
fbp->green_mask_size = fb.green_mask_size;
fbp->green_mask_shift = fb.green_mask_shift;
fbp->blue_mask_size = fb.blue_mask_size;
fbp->blue_mask_shift = fb.blue_mask_shift;
uint64_t *fb_list = ext_mem_alloc(1 * sizeof(uint64_t));
fb_list[0] = reported_addr(fbp);
framebuffer_response->framebuffer_count = 1;
framebuffer_response->framebuffers = reported_addr(fb_list);
framebuffer_request->response = reported_addr(framebuffer_response);
FEAT_END
// Boot time feature
FEAT_START
struct limine_boot_time_request *boot_time_request = get_request(LIMINE_BOOT_TIME_REQUEST);
if (boot_time_request == NULL) {
break; // next feature
}
struct limine_boot_time_response *boot_time_response =
ext_mem_alloc(sizeof(struct limine_boot_time_response));
boot_time_response->boot_time = time();
boot_time_request->response = reported_addr(boot_time_response);
FEAT_END
// Wrap-up stuff before memmap close
struct gdtr *local_gdt = ext_mem_alloc(sizeof(struct gdtr));
local_gdt->limit = gdt.limit;
uint64_t local_gdt_base = (uint64_t)gdt.ptr;
local_gdt_base += direct_map_offset;
local_gdt->ptr = local_gdt_base;
#if defined (__i386__)
local_gdt->ptr_hi = local_gdt_base >> 32;
#endif
void *stack = ext_mem_alloc(stack_size) + stack_size;
pagemap_t pagemap = {0};
pagemap = stivale_build_pagemap(want_5lv, true, ranges, ranges_count, true,
physical_base, virtual_base, direct_map_offset);
#if uefi == 1
efi_exit_boot_services();
#endif
// SMP
FEAT_START
struct limine_smp_request *smp_request = get_request(LIMINE_SMP_REQUEST);
if (smp_request == NULL) {
break; // next feature
}
struct limine_smp_info *smp_array;
struct smp_information *smp_info;
size_t cpu_count;
uint32_t bsp_lapic_id;
smp_info = init_smp(0, (void **)&smp_array,
&cpu_count, &bsp_lapic_id,
true, want_5lv,
pagemap, smp_request->flags & LIMINE_SMP_X2APIC, true,
direct_map_offset, true);
if (smp_info == NULL) {
break;
}
for (size_t i = 0; i < cpu_count; i++) {
void *cpu_stack = ext_mem_alloc(stack_size) + stack_size;
smp_info[i].stack_addr = reported_addr(cpu_stack + stack_size);
}
struct limine_smp_response *smp_response =
ext_mem_alloc(sizeof(struct limine_smp_response));
smp_response->flags |= (smp_request->flags & LIMINE_SMP_X2APIC) && x2apic_check();
smp_response->bsp_lapic_id = bsp_lapic_id;
uint64_t *smp_list = ext_mem_alloc(cpu_count * sizeof(uint64_t));
for (size_t i = 0; i < cpu_count; i++) {
smp_list[i] = reported_addr(&smp_array[i]);
}
smp_response->cpu_count = cpu_count;
smp_response->cpus = reported_addr(smp_list);
smp_request->response = reported_addr(smp_response);
FEAT_END
// Memmap
FEAT_START
struct limine_memmap_request *memmap_request = get_request(LIMINE_MEMMAP_REQUEST);
struct limine_memmap_response *memmap_response;
struct limine_memmap_entry *_memmap;
uint64_t *memmap_list;
if (memmap_request != NULL) {
memmap_response = ext_mem_alloc(sizeof(struct limine_memmap_response));
_memmap = ext_mem_alloc(sizeof(struct limine_memmap_entry) * MAX_MEMMAP);
memmap_list = ext_mem_alloc(MAX_MEMMAP * sizeof(uint64_t));
}
size_t mmap_entries;
struct e820_entry_t *mmap = get_memmap(&mmap_entries);
if (memmap_request == NULL) {
break; // next feature
}
if (mmap_entries > MAX_MEMMAP) {
panic(false, "limine: Too many memmap entries");
}
for (size_t i = 0; i < mmap_entries; i++) {
_memmap[i].base = mmap[i].base;
_memmap[i].length = mmap[i].length;
switch (mmap[i].type) {
case MEMMAP_USABLE:
_memmap[i].type = LIMINE_MEMMAP_USABLE;
break;
case MEMMAP_ACPI_RECLAIMABLE:
_memmap[i].type = LIMINE_MEMMAP_ACPI_RECLAIMABLE;
break;
case MEMMAP_ACPI_NVS:
_memmap[i].type = LIMINE_MEMMAP_ACPI_NVS;
break;
case MEMMAP_BAD_MEMORY:
_memmap[i].type = LIMINE_MEMMAP_BAD_MEMORY;
break;
case MEMMAP_BOOTLOADER_RECLAIMABLE:
_memmap[i].type = LIMINE_MEMMAP_BOOTLOADER_RECLAIMABLE;
break;
case MEMMAP_KERNEL_AND_MODULES:
_memmap[i].type = LIMINE_MEMMAP_KERNEL_AND_MODULES;
break;
case MEMMAP_FRAMEBUFFER:
_memmap[i].type = LIMINE_MEMMAP_FRAMEBUFFER;
break;
default:
case MEMMAP_RESERVED:
_memmap[i].type = LIMINE_MEMMAP_RESERVED;
break;
}
}
for (size_t i = 0; i < mmap_entries; i++) {
memmap_list[i] = reported_addr(&_memmap[i]);
}
memmap_response->entry_count = mmap_entries;
memmap_response->entries = reported_addr(memmap_list);
memmap_request->response = reported_addr(memmap_response);
FEAT_END
// Clear terminal for kernels that will use the Limine terminal
term_write((uint64_t)(uintptr_t)("\e[2J\e[H"), 7);
term_runtime = true;
stivale_spinup(64, want_5lv, &pagemap, entry_point, 0,
reported_addr(stack), true, true, (uintptr_t)local_gdt);
__builtin_unreachable();
}