mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-09 19:36:47 +00:00
bugfix: 修正某些情况下多核启动信号丢失的问题
This commit is contained in:
parent
88bcbdc681
commit
fdc5151049
@ -46,19 +46,21 @@ void smp_init()
|
||||
ipi_regiserIPI(0xc8, NULL, &ipi_0xc8_handler, NULL, NULL, "IPI 0xc8");
|
||||
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x00, ICR_INIT, ICR_ALL_EXCLUDE_Self, true, 0x00);
|
||||
|
||||
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
|
||||
{
|
||||
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)
|
||||
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
|
||||
current_starting_cpu = proc_local_apic_structs[i]->local_apic_id;
|
||||
|
||||
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);
|
||||
|
||||
// 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;
|
||||
@ -154,7 +156,7 @@ void smp_ap_start()
|
||||
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
|
||||
sti();
|
||||
|
||||
kdebug("1212221212");
|
||||
while (1)
|
||||
hlt();
|
||||
|
||||
|
Loading…
x
Reference in New Issue
Block a user