82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2019 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr/kernel.h>
|
|
#include <kernel_internal.h>
|
|
#include <zephyr/arch/x86/multiboot.h>
|
|
#include <zephyr/arch/x86/efi.h>
|
|
#include <x86_mmu.h>
|
|
|
|
extern FUNC_NORETURN void z_cstart(void);
|
|
extern void x86_64_irq_init(void);
|
|
|
|
#if !defined(CONFIG_X86_64)
|
|
__pinned_data x86_boot_arg_t x86_cpu_boot_arg;
|
|
#endif
|
|
|
|
/* Early global initialization functions, C domain. This runs only on the first
|
|
* CPU for SMP systems.
|
|
*/
|
|
__boot_func
|
|
FUNC_NORETURN void z_x86_prep_c(void *arg)
|
|
{
|
|
x86_boot_arg_t *cpu_arg = arg;
|
|
|
|
_kernel.cpus[0].nested = 0;
|
|
|
|
#ifdef CONFIG_MMU
|
|
z_x86_mmu_init();
|
|
#endif
|
|
|
|
#if defined(CONFIG_LOAPIC)
|
|
z_loapic_enable(0);
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86_64
|
|
x86_64_irq_init();
|
|
#endif
|
|
|
|
if (IS_ENABLED(CONFIG_MULTIBOOT_INFO) &&
|
|
cpu_arg->boot_type == MULTIBOOT_BOOT_TYPE) {
|
|
z_multiboot_init((struct multiboot_info *)cpu_arg->arg);
|
|
} else if (IS_ENABLED(CONFIG_X86_EFI) &&
|
|
cpu_arg->boot_type == EFI_BOOT_TYPE) {
|
|
efi_init((struct efi_boot_arg *)cpu_arg->arg);
|
|
} else {
|
|
ARG_UNUSED(cpu_arg);
|
|
}
|
|
|
|
#ifdef CONFIG_X86_VERY_EARLY_CONSOLE
|
|
z_x86_early_serial_init();
|
|
|
|
#if defined(CONFIG_BOARD_QEMU_X86) || defined(CONFIG_BOARD_QEMU_X86_64)
|
|
/*
|
|
* Under QEMU and SeaBIOS, everything gets to be printed
|
|
* immediately after "Booting from ROM.." as there is no newline.
|
|
* This prevents parsing QEMU console output for the very first
|
|
* line where it needs to match from the beginning of the line.
|
|
* So add a dummy newline here so the next output is at
|
|
* the beginning of a line.
|
|
*/
|
|
arch_printk_char_out('\n');
|
|
#endif
|
|
#endif
|
|
|
|
#if CONFIG_X86_STACK_PROTECTION
|
|
unsigned int num_cpus = arch_num_cpus();
|
|
|
|
for (int i = 0; i < num_cpus; i++) {
|
|
z_x86_set_stack_guard(z_interrupt_stacks[i]);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SMP)
|
|
z_x86_ipi_setup();
|
|
#endif
|
|
|
|
z_cstart();
|
|
}
|