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new: 为ipi添加xapic支持
This commit is contained in:
fslongjin
parent
588603a10a
commit
dffa51b1ef
@ -1,7 +1,8 @@
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#include "x86_64_ipi.h"
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#include <driver/interrupt/apic/apic.h>
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void ipi_send_IPI(uint32_t dest_mode, uint32_t deliver_status, uint32_t level, uint32_t trigger,
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uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, bool apic_type, uint32_t destination)
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uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, uint32_t destination)
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{
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struct INT_CMD_REG icr_entry;
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icr_entry.dest_mode = dest_mode;
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@ -18,7 +19,7 @@ void ipi_send_IPI(uint32_t dest_mode, uint32_t deliver_status, uint32_t level, u
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// x2APIC下，ICR寄存器地址为0x830
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// xAPIC下则为0xfee00300(31-0) 0xfee00310 (63-32)
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if (apic_type) // x2APIC
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if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED) // x2APIC
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{
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icr_entry.destination.x2apic_destination = destination;
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wrmsr(0x830, *(unsigned long *)&icr_entry); // 发送ipi
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@ -29,17 +30,17 @@ void ipi_send_IPI(uint32_t dest_mode, uint32_t deliver_status, uint32_t level, u
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icr_entry.destination.apic_destination.dest_field = destination & 0xff;
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icr_entry.destination.apic_destination.res_4 = 0;
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// 先向高32bit写数据，然后再向低32bit写数据，不能调转
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*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + 0x310) = (uint32_t)(((*(ul *)&icr_entry) >> 32) & 0xffff);
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*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + 0x300) = (uint32_t)((*(ul *)&icr_entry) & 0xffff);
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*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + 0x310) = (uint32_t)(((*(ul *)&icr_entry) >> 32) & 0xffffffff);
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*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + 0x300) = (uint32_t)((*(ul *)&icr_entry) & 0xffffffff);
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}
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}
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int ipi_regiserIPI(uint64_t irq_num, void *arg,
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void (*handler)(uint64_t irq_num, uint64_t param, struct pt_regs *regs),
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uint64_t param, hardware_intr_controller *controller, char *irq_name)
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uint64_t param, hardware_intr_controller *controller, char *irq_name)
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{
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irq_desc_t *p = &SMP_IPI_desc[irq_num-200];
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p->controller = NULL; // 由于ipi不涉及到具体的硬件操作，因此不需要controller
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irq_desc_t *p = &SMP_IPI_desc[irq_num - 200];
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p->controller = NULL; // 由于ipi不涉及到具体的硬件操作，因此不需要controller
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p->irq_name = irq_name;
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p->parameter = param;
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p->flags = 0;
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@ -24,11 +24,10 @@
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* @param vector 中断向量
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* @param deliver_mode 投递模式
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* @param dest_shorthand 投递目标速记值
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* @param apic_type apic的类型 （0:xapic 1: x2apic）
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* @param destination 投递目标
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*/
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void ipi_send_IPI(uint32_t dest_mode, uint32_t deliver_status, uint32_t level, uint32_t trigger,
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uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, bool apic_type, uint32_t destination);
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uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, uint32_t destination);
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/**
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* @brief ipi中断处理注册函数
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@ -15,23 +15,36 @@
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// 导出定义在irq.c中的中段门表
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extern void (*interrupt_table[24])(void);
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bool flag_support_apic = false;
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bool flag_support_x2apic = false;
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uint local_apic_version;
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uint local_apic_max_LVT_entries;
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static bool flag_support_apic = false;
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static bool flag_support_x2apic = false;
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uint8_t __apic_enable_state = APIC_XAPIC_ENABLED;
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static uint local_apic_version;
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static uint local_apic_max_LVT_entries;
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static struct acpi_Multiple_APIC_Description_Table_t *madt;
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static struct acpi_IO_APIC_Structure_t *io_apic_ICS;
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#define send_EOI() \
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do \
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{ \
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__asm__ __volatile__("movq $0x00, %%rdx \n\t" \
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"movq $0x00, %%rax \n\t" \
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"movq $0x80b, %%rcx \n\t" \
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"wrmsr \n\t" :: \
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: "memory"); \
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} while (0)
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static void __local_apic_xapic_init();
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static void __local_apic_x2apic_init();
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static __always_inline void __send_eoi()
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{
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if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
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{
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__asm__ __volatile__("movq $0x00, %%rdx \n\t"
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"movq $0x00, %%rax \n\t"
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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}
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else
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{
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io_mfence();
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*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_EOI) = 0;
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io_mfence();
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}
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}
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/**
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* @brief 初始化io_apic
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@ -110,64 +123,26 @@ void apic_init_ap_core_local_apic()
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uint64_t ia32_apic_base = rdmsr(0x1b);
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ia32_apic_base |= (1 << 11);
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if (flag_support_x2apic) // 如果支持x2apic，则启用
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{
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ia32_apic_base |= (1 << 10);
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wrmsr(0x1b, ia32_apic_base);
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wrmsr(0x1b, ia32_apic_base);
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}
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ia32_apic_base = rdmsr(0x1b);
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eax = ia32_apic_base & 0xffffffff;
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// 检测是否成功启用xAPIC和x2APIC
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if (eax & 0xc00)
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if ((eax & 0xc00) == 0xc00)
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kinfo("xAPIC & x2APIC enabled!");
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else if ((eax & 0x800) == 0x800)
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kinfo("Only xAPIC enabled!");
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else
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kerror("Both xAPIC and x2APIC are not enabled.");
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// 设置SVR寄存器，开启local APIC、禁止EOI广播
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// enable SVR[8]
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__asm__ __volatile__("movq $0x80f, %%rcx \n\t"
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"rdmsr \n\t"
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"bts $8, %%rax \n\t"
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// "bts $12, %%rax\n\t"
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"wrmsr \n\t"
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"movq $0x80f, %%rcx \n\t"
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"rdmsr \n\t"
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: "=a"(eax), "=d"(edx)
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:
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: "memory");
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if (eax & 0x100)
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printk_color(RED, YELLOW, "SVR[8] enabled\n");
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if (edx & 0x1000)
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printk_color(RED, YELLOW, "SVR[12] enabled\n");
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// get local APIC ID
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__asm__ __volatile__("movq $0x802, %%rcx \n\t"
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"rdmsr \n\t"
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: "=a"(eax), "=d"(edx)
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:
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: "memory");
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printk_color(RED, YELLOW, "x2APIC ID:%#010x\n", eax);
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// 由于尚未配置LVT对应的处理程序，因此先屏蔽所有的LVT
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// mask all LVT
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__asm__ __volatile__( //"movq $0x82f, %%rcx \n\t" //CMCI
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//"wrmsr \n\t"
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"movq $0x832, %%rcx \n\t" // Timer
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"wrmsr \n\t"
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"movq $0x833, %%rcx \n\t" // Thermal Monitor
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"wrmsr \n\t"
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"movq $0x834, %%rcx \n\t" // Performance Counter
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"wrmsr \n\t"
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"movq $0x835, %%rcx \n\t" // LINT0
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"wrmsr \n\t"
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"movq $0x836, %%rcx \n\t" // LINT1
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"wrmsr \n\t"
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"movq $0x837, %%rcx \n\t" // Error
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"wrmsr \n\t"
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:
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: "a"(0x10000), "d"(0x00)
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: "memory");
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kdebug("All LVT Masked");
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if (flag_support_x2apic) // 当前为x2APIC
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__local_apic_x2apic_init();
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else // 当前为xapic
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__local_apic_xapic_init();
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}
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/**
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@ -176,9 +151,10 @@ void apic_init_ap_core_local_apic()
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*/
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static void __local_apic_xapic_init()
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{
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__apic_enable_state = APIC_XAPIC_ENABLED;
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// 设置svr的 apic软件使能位
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uint64_t qword = *(uint64_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_SVR);
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kdebug("svr=%#018lx", qword);
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qword |= (1 << 8);
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*(uint64_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_SVR) = qword;
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qword = *(uint64_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_SVR);
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@ -230,6 +206,7 @@ static void __local_apic_xapic_init()
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*/
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static void __local_apic_x2apic_init()
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{
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__apic_enable_state = APIC_X2APIC_ENABLED;
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uint32_t eax, edx;
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__asm__ __volatile__("movq $0x80f, %%rcx \n\t"
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"rdmsr \n\t"
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@ -262,23 +239,23 @@ static void __local_apic_x2apic_init()
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kdebug("Integrated APIC.");
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// 由于尚未配置LVT对应的处理程序，因此先屏蔽所有的LVT
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__asm__ __volatile__(// "movq $0x82f, %%rcx \n\t" // CMCI
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// "wrmsr \n\t"
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"movq $0x832, %%rcx \n\t" // Timer
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"wrmsr \n\t"
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"movq $0x833, %%rcx \n\t" // Thermal Monitor
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"wrmsr \n\t"
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"movq $0x834, %%rcx \n\t" // Performance Counter
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"wrmsr \n\t"
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"movq $0x835, %%rcx \n\t" // LINT0
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"wrmsr \n\t"
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"movq $0x836, %%rcx \n\t" // LINT1
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"wrmsr \n\t"
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"movq $0x837, %%rcx \n\t" // Error
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"wrmsr \n\t"
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:
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: "a"(0x10000), "d"(0x00)
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: "memory");
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__asm__ __volatile__( // "movq $0x82f, %%rcx \n\t" // CMCI
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// "wrmsr \n\t"
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"movq $0x832, %%rcx \n\t" // Timer
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"wrmsr \n\t"
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"movq $0x833, %%rcx \n\t" // Thermal Monitor
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"wrmsr \n\t"
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"movq $0x834, %%rcx \n\t" // Performance Counter
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"wrmsr \n\t"
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"movq $0x835, %%rcx \n\t" // LINT0
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"wrmsr \n\t"
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"movq $0x836, %%rcx \n\t" // LINT1
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"wrmsr \n\t"
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"movq $0x837, %%rcx \n\t" // Error
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"wrmsr \n\t"
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:
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: "a"(0x10000), "d"(0x00)
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: "memory");
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kdebug("All LVT Masked");
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}
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@ -329,8 +306,10 @@ void apic_local_apic_init()
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ia32_apic_base = rdmsr(0x1b);
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ia32_apic_base |= (1 << 11);
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if (flag_support_x2apic) // 如果支持x2apic，则启用
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{
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ia32_apic_base |= (1 << 10);
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wrmsr(0x1b, ia32_apic_base);
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wrmsr(0x1b, ia32_apic_base);
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}
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ia32_apic_base = rdmsr(0x1b);
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eax = ia32_apic_base & 0xffffffff;
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@ -375,21 +354,7 @@ void apic_init()
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for (int i = 150; i < 160; ++i)
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set_intr_gate(i, 0, local_apic_interrupt_table[i - 150]);
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// 初始化主芯片
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// io_out8(0x20, 0x11); // 初始化主芯片的icw1
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// io_out8(0x21, 0x20); // 设置主芯片的中断向量号为0x20(0x20-0x27)
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// io_out8(0x21, 0x04); // 设置int2端口级联从芯片
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// io_out8(0x21, 0x01); // 设置为AEOI模式、FNM、无缓冲
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// // 初始化从芯片
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// io_out8(0xa0, 0x11);
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// io_out8(0xa1, 0x28); // 设置从芯片的中断向量号为0x28(0x28-0x2f)
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// io_out8(0xa1, 0x02); // 设置从芯片连接到主芯片的int2
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// io_out8(0xa1, 0x01);
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// 屏蔽类8259A芯片
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// todo: 这里有bug：在真机或bochs上，无法屏蔽8259A，以至于sti()后，接收到来自与8259A相连的时钟的中断。然后造成错误。
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io_out8(0x21, 0xff);
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io_out8(0xa1, 0xff);
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@ -445,26 +410,10 @@ void do_IRQ(struct pt_regs *rsp, ul number)
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if (irq->controller != NULL && irq->controller->ack != NULL)
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irq->controller->ack(number);
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else
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{
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// 向EOI寄存器写入0x00表示结束中断
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__asm__ __volatile__("movq $0x00, %%rdx \n\t"
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"movq $0x00, %%rax \n\t"
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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}
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}
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else if (number == 0x80) // 系统调用
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{
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// ps: 当前已经将系统调用直接使用系统调用门实现，不走这里。。
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do_syscall_int(rsp, 0);
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__send_eoi();
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}
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else if (number >= 200)
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{
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// printk_color(RED, BLACK, "SMP IPI [ %d ]\n", number);
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apic_local_apic_edge_ack(number);
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{
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@ -486,16 +435,14 @@ void do_IRQ(struct pt_regs *rsp, ul number)
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if (irq->controller != NULL && irq->controller->ack != NULL)
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irq->controller->ack(number);
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else
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{
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// 向EOI寄存器写入0x00表示结束中断
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send_EOI();
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}
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__send_eoi(); // 向EOI寄存器写入0x00表示结束中断
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}
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else
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{
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kwarn("do IRQ receive: %d", number);
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// 忽略未知中断
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return;
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}
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// kdebug("before softirq");
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@ -600,17 +547,7 @@ void apic_ioapic_uninstall(ul irq_num)
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void apic_ioapic_level_ack(ul irq_num) // 电平触发
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{
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// 向EOI寄存器写入0x00表示结束中断
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/*io_mfence();
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uint *eoi = (uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_EOI);
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*eoi = 0x00;
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io_mfence(); */
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__asm__ __volatile__("movq $0x00, %%rdx \n\t"
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"movq $0x00, %%rax \n\t"
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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__send_eoi();
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*apic_ioapic_map.virtual_EOI_addr = irq_num;
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}
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@ -623,11 +560,7 @@ void apic_ioapic_edge_ack(ul irq_num) // 边沿触发
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*eoi = 0x00;
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*/
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__asm__ __volatile__("movq $0x00, %%rdx \n\t"
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"movq $0x00, %%rax \n\t"
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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__send_eoi();
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}
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/**
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@ -639,11 +572,7 @@ void apic_ioapic_edge_ack(ul irq_num) // 边沿触发
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void apic_local_apic_edge_ack(ul irq_num)
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{
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// 向EOI寄存器写入0x00表示结束中断
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__asm__ __volatile__("movq $0x00, %%rdx \n\t"
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"movq $0x00, %%rax \n\t"
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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__send_eoi();
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}
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||||
/**
|
||||
|
||||
@ -8,13 +8,20 @@
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O0")
|
||||
|
||||
|
||||
#define APIC_SUCCESS 0
|
||||
#define APIC_E_NOTFOUND 1
|
||||
|
||||
#define APIC_IO_APIC_VIRT_BASE_ADDR SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + IO_APIC_MAPPING_OFFSET
|
||||
#define APIC_LOCAL_APIC_VIRT_BASE_ADDR SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + LOCAL_APIC_MAPPING_OFFSET
|
||||
|
||||
// ======== local apic 寄存器地址偏移量表 =======
|
||||
// 当前apic启用状态标志
|
||||
extern uint8_t __apic_enable_state;
|
||||
#define APIC_XAPIC_ENABLED 0
|
||||
#define APIC_X2APIC_ENABLED 1
|
||||
#define CURRENT_APIC_STATE (__apic_enable_state )
|
||||
|
||||
// ======== local apic 寄存器虚拟地址偏移量表 =======
|
||||
// 0x00~0x10 Reserved.
|
||||
#define LOCAL_APIC_OFFSET_Local_APIC_ID 0x20
|
||||
#define LOCAL_APIC_OFFSET_Local_APIC_Version 0x30
|
||||
|
||||
@ -12,27 +12,32 @@ extern uint64_t apic_timer_ticks_result;
|
||||
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O0")
|
||||
|
||||
/**
|
||||
* @brief 设置apic定时器的分频计数
|
||||
*
|
||||
* @param divider 分频除数
|
||||
*/
|
||||
#define apic_timer_set_div(divider) \
|
||||
do \
|
||||
{ \
|
||||
wrmsr(0x83e, divider); \
|
||||
} while (0)
|
||||
static __always_inline void apic_timer_set_div(uint64_t divider)
|
||||
{
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
wrmsr(0x83e, divider);
|
||||
else
|
||||
*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_CLKDIV) = (uint32_t)divider;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 设置apic定时器的初始计数值
|
||||
*
|
||||
* @param init_cnt 初始计数值
|
||||
*/
|
||||
#define apic_timer_set_init_cnt(init_cnt) \
|
||||
do \
|
||||
{ \
|
||||
wrmsr(0x838, init_cnt); \
|
||||
} while (0)
|
||||
static __always_inline void apic_timer_set_init_cnt(uint32_t init_cnt)
|
||||
{
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
wrmsr(0x838, init_cnt);
|
||||
else
|
||||
*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_INITIAL_COUNT_REG) = (uint32_t)init_cnt;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 设置apic定时器的lvt，并启动定时器
|
||||
@ -41,28 +46,46 @@ extern uint64_t apic_timer_ticks_result;
|
||||
* @param mask 是否屏蔽（1：屏蔽， 0：不屏蔽）
|
||||
* @param mode 计时模式
|
||||
*/
|
||||
#define apic_timer_set_LVT(vector, mask, mode) \
|
||||
do \
|
||||
{ \
|
||||
wrmsr(0x832, (mode << 17) | vector | (mask ? (APIC_LVT_INT_MASKED) : 0)); \
|
||||
} while (0)
|
||||
static __always_inline void apic_timer_set_LVT(uint32_t vector, uint32_t mask, uint32_t mode)
|
||||
{
|
||||
register uint32_t val = (mode << 17) | vector | (mask ? (APIC_LVT_INT_MASKED) : 0);
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
wrmsr(0x832, val);
|
||||
else
|
||||
*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER) = (uint32_t)val;
|
||||
}
|
||||
|
||||
#define apic_timer_write_LVT(value) \
|
||||
do \
|
||||
{ \
|
||||
wrmsr(0x832, value); \
|
||||
} while (0)
|
||||
static __always_inline void apic_timer_write_LVT(uint32_t value)
|
||||
{
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
wrmsr(0x832, value);
|
||||
else
|
||||
*(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER) = (uint32_t)value;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取apic定时器的LVT的值
|
||||
*
|
||||
*/
|
||||
#define apic_timer_get_LVT() (rdmsr(0x832))
|
||||
static __always_inline uint32_t apic_timer_get_LVT()
|
||||
{
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
return rdmsr(0x832);
|
||||
else
|
||||
return *(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取apic定时器当前计数值
|
||||
*
|
||||
*/
|
||||
#define apic_timer_get_current() (rdmsr(0x839))
|
||||
static __always_inline uint32_t apic_timer_get_current()
|
||||
{
|
||||
if (CURRENT_APIC_STATE == APIC_X2APIC_ENABLED)
|
||||
return (uint32_t)rdmsr(0x839);
|
||||
else
|
||||
return *(uint32_t *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_CURRENT_COUNT_REG);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 停止apic定时器
|
||||
@ -71,7 +94,7 @@ extern uint64_t apic_timer_ticks_result;
|
||||
#define apic_timer_stop() \
|
||||
do \
|
||||
{ \
|
||||
uint64_t val = apic_timer_get_LVT(); \
|
||||
uint32_t val = apic_timer_get_LVT(); \
|
||||
val |= APIC_LVT_INT_MASKED; \
|
||||
apic_timer_write_LVT(val); \
|
||||
} while (0)
|
||||
|
||||
@ -21,7 +21,7 @@
|
||||
* @param destination 投递目标
|
||||
*/
|
||||
extern void ipi_send_IPI(uint32_t dest_mode, uint32_t deliver_status, uint32_t level, uint32_t trigger,
|
||||
uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, bool apic_type, uint32_t destination);
|
||||
uint32_t vector, uint32_t deliver_mode, uint32_t dest_shorthand, uint32_t destination);
|
||||
|
||||
/**
|
||||
* @brief ipi中断处理注册函数
|
||||
|
||||
@ -13,7 +13,7 @@
|
||||
|
||||
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
|
||||
static spinlock_t multi_core_starting_lock={1}; // 多核启动锁
|
||||
|
||||
static struct acpi_Processor_Local_APIC_Structure_t *proc_local_apic_structs[MAX_SUPPORTED_PROCESSOR_NUM];
|
||||
static uint32_t total_processor_num = 0;
|
||||
@ -49,8 +49,10 @@ void smp_init()
|
||||
// 注册接收bsp处理器的hpet中断转发的处理函数
|
||||
ipi_regiserIPI(0xc8, NULL, &ipi_0xc8_handler, NULL, NULL, "IPI 0xc8");
|
||||
io_mfence();
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x00, ICR_INIT, ICR_ALL_EXCLUDE_Self, true, 0x00);
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x00, ICR_INIT, ICR_ALL_EXCLUDE_Self, 0x00);
|
||||
|
||||
kdebug("total_processor_num=%d", total_processor_num);
|
||||
// total_processor_num = 3;
|
||||
for (int i = 1; i < total_processor_num; ++i) // i从1开始，不初始化bsp
|
||||
{
|
||||
io_mfence();
|
||||
@ -90,9 +92,9 @@ void smp_init()
|
||||
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);
|
||||
io_mfence();
|
||||
// 连续发送两次start-up IPI
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x20, ICR_Start_up, ICR_No_Shorthand, true, proc_local_apic_structs[i]->local_apic_id);
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x20, ICR_Start_up, ICR_No_Shorthand, proc_local_apic_structs[i]->local_apic_id);
|
||||
io_mfence();
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x20, ICR_Start_up, ICR_No_Shorthand, true, proc_local_apic_structs[i]->local_apic_id);
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0x20, ICR_Start_up, ICR_No_Shorthand, proc_local_apic_structs[i]->local_apic_id);
|
||||
}
|
||||
io_mfence();
|
||||
while (num_cpu_started != total_processor_num)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user