From: acevest <zhaoyanbai@126.com>
Date: Thu, 8 Jan 2026 01:48:31 +0000 (+0800)
Subject: 把8254的时钟中断路由到AP,把HPET#0的时钟中断路由到BSP
X-Git-Url: http://repos.zhaoyanbai.com/Mou_128.png?a=commitdiff_plain;h=3ce97a427128dd0998e75a24748c6882eabee653;p=kernel.git

把8254的时钟中断路由到AP,把HPET#0的时钟中断路由到BSP
---

diff --git a/kernel/ap.c b/kernel/ap.c
index 0312377..fd05c06 100644
--- a/kernel/ap.c
+++ b/kernel/ap.c
@@ -128,7 +128,7 @@ void ap_kernel_entry() {
     lapic_svr |= (1 << 8);    // 启用LAPIC
     lapic_svr &= ~(1 << 12);  // 禁用EOI广播
     lapic->write(LAPIC_SVR, lapic_svr);
-
+#if 0
     // 先显示地屏蔽时钟中断
     lapic->write(LAPIC_LVT_TIMER, LAPIC_LVT_MASKED);
 
@@ -148,7 +148,7 @@ void ap_kernel_entry() {
 
     //
     lapic->write(LAPIC_LVT_TIMER, LAPIC_TIMER_MODE_PERIODIC | clkvec);
-
+#endif
     asm("sti;");
 
     while (1) {
diff --git a/kernel/apic.c b/kernel/apic.c
index 8f3045e..5600206 100644
--- a/kernel/apic.c
+++ b/kernel/apic.c
@@ -343,7 +343,8 @@ void ioapic_init() {
 #if 1
     // 把8253的中断通过IOAPIC转发到CPU0的0号中断
     // 8253/8254连在i8259的0号引脚，但连在IO APIC的2号引脚上
-    ioapic_rte_write(IOAPIC_RTE(2), 0x20 + 0 | (dst_cpuid << 56));
+    // ioapic_rte_write(IOAPIC_RTE(2), 0x20 + 0 | (dst_cpuid << 56));
+    ioapic_rte_write(IOAPIC_RTE(2), 0x20 + 0 | (1ULL << 56));
     // 把键盘中断通过IOAPIC转发到CPU0的1号中断
     ioapic_rte_write(IOAPIC_RTE(1), 0x20 + 1 | (dst_cpuid << 56));
     irq_set_chip(0x00, &ioapic_chip);
@@ -396,7 +397,7 @@ void ioapic_init() {
     printk("HPET enabled: %s\n", (GEN_CONF & (1 << 0)) == 0 ? "no" : "yes");
     printk("HPET legacy replacement: %s\n", (GEN_CONF & (1 << 1)) == 0 ? "no" : "yes");
 
-    uint32_t cpu_irq_vec = 64;
+    uint32_t cpu_irq_vec = 0;
     uint32_t ioapic_irq = 23;
 
     // TIM0_CONF
@@ -451,8 +452,8 @@ void ioapic_init() {
 
     printk("TIM0_CONF: 0x%08x%08x\n", (uint32_t)(TIM0_CONF >> 32), (uint32_t)TIM0_CONF);
 
-    uint64_t x = freq_mhz * 1000000ULL;
-    x >>= 1;
+    // uint64_t x = freq_mhz * 1000000ULL;
+    uint64_t x = freq_mhz * 10000ULL;
     *(volatile uint32_t*)(hpet_base + 0x108 + 0x04) = (uint32_t)(x >> 32);
     *(volatile uint32_t*)(hpet_base + 0x108 + 0x00) = (uint32_t)(x & 0xFFFFFFFF);
     // *(volatile uint64_t*)(hpet_base + 0x108) = x;