DeforaOS/uKernel
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This commit is contained in:
Pierre Pronchery 2018-04-11 02:34:53 +02:00
parent 41bdc2fba2
commit f037cd0996
1 changed files with 13 additions and 1 deletions
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14
src/loader/multiboot.c
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@ -40,14 +40,20 @@ static const GDT _gdt_4gb[4] =
int multiboot(ukMultibootInfo * mi)
{
ukBus * bus;
char const * console = LOADER_CONSOLE;
size_t i;
ukMultibootMod * mod;
int res = -1;
unsigned char elfclass;
vaddr_t entrypoint;
/* initialize the root bus */
bus = bus_init(LOADER_BUS);
console_init(bus, LOADER_CONSOLE);
/* initialize the console */
console_init(bus, console);
/* report information on the boot process */
puts("DeforaOS Multiboot");
if(mi->loader_name != NULL)
printf("Loader: %s\n", mi->loader_name);
@ -56,6 +62,8 @@ int multiboot(ukMultibootInfo * mi)
printf("%u MB memory available\n",
(mi->mem_upper - mi->mem_lower) / 1024);
printf("Booted from %#x\n", mi->boot_device_drive);
/* look for the kernel and modules */
if(!(mi->flags & BOOT_MULTIBOOT_HEADER_HAS_MODS))
{
puts("No modules provided");
@ -71,6 +79,8 @@ int multiboot(ukMultibootInfo * mi)
puts("Could not setup the GDT");
return 4;
}
/* load the kernel and modules */
puts("Loading modules...");
for(i = 0; i < mi->mods_count; i++)
{
@ -87,6 +97,8 @@ int multiboot(ukMultibootInfo * mi)
puts("Could not load the kernel");
return 5;
}
/* hand control over to the kernel */
printf("Jumping into the kernel at %#x (%u, %u, %#x) %p\n", entrypoint,
mi->elfshdr_num, mi->elfshdr_size, mi->elfshdr_addr,
multiboot);