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Code Issues Releases Wiki Activity

o3能运行

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This commit is contained in:
fslongjin
2022-08-01 20:40:27 +08:00
parent 58681fd34a
commit e806bbc0c8
23 changed files with 118 additions and 57 deletions
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17
kernel/smp/smp.c
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@ -11,7 +11,7 @@
#include "ipi.h"
#pragma GCC push_options
#pragma GCC optimize("O0")
#pragma GCC optimize("O1")
void ipi_0xc8_handler(uint64_t irq_num, uint64_t param, struct pt_regs *regs); // 由BSP转发的HPET中断处理函数
static spinlock_t multi_core_starting_lock; // 多核启动锁
@ -50,19 +50,20 @@ void smp_init()
kdebug("total_processor_num=%d", total_processor_num);
for (int i = 1; i < total_processor_num; ++i) // i从1开始，不初始化bsp
{
io_mfence();
if (proc_local_apic_structs[i]->ACPI_Processor_UID == 0)
--total_processor_num;
if (proc_local_apic_structs[i]->local_apic_id > total_processor_num)
{
--total_processor_num;
continue;}
{
--total_processor_num;
continue;
}
kdebug("[core %d] acpi processor UID=%d, APIC ID=%d, flags=%#010lx", i, proc_local_apic_structs[i]->ACPI_Processor_UID, proc_local_apic_structs[i]->local_apic_id, proc_local_apic_structs[i]->flags);
spin_lock(&multi_core_starting_lock);
preempt_enable(); // 由于ap处理器的pcb与bsp的不同，因此ap处理器放锁时，bsp的自旋锁持有计数不会发生改变,需要手动恢复preempt count
preempt_enable(); // 由于ap处理器的pcb与bsp的不同，因此ap处理器放锁时，bsp的自旋锁持有计数不会发生改变,需要手动恢复preempt count
current_starting_cpu = proc_local_apic_structs[i]->local_apic_id;
// 为每个AP处理器分配栈空间
cpu_core_info[current_starting_cpu].stack_start = (uint64_t)kmalloc(STACK_SIZE, 0) + STACK_SIZE;
cpu_core_info[current_starting_cpu].ist_stack_start = (uint64_t)(kmalloc(STACK_SIZE, 0)) + STACK_SIZE;
@ -78,7 +79,7 @@ void smp_init()
memset(&initial_tss[current_starting_cpu], 0, sizeof(struct tss_struct));
set_tss_descriptor(10 + (current_starting_cpu * 2), (void *)(cpu_core_info[current_starting_cpu].tss_vaddr));
io_mfence();
set_tss64((uint *)cpu_core_info[current_starting_cpu].tss_vaddr, cpu_core_info[current_starting_cpu].stack_start, cpu_core_info[current_starting_cpu].stack_start, cpu_core_info[current_starting_cpu].stack_start,
cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start, cpu_core_info[current_starting_cpu].ist_stack_start);
@ -155,7 +156,7 @@ void smp_ap_start()
// kdebug("IDT_addr = %#018lx", phys_2_virt(IDT_Table));
spin_unlock(&multi_core_starting_lock);
preempt_disable();// 由于ap处理器的pcb与bsp的不同，因此ap处理器放锁时，需要手动恢复preempt count
preempt_disable(); // 由于ap处理器的pcb与bsp的不同，因此ap处理器放锁时，需要手动恢复preempt count
sti();
while (1)