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Code Issues Releases Wiki Activity

打印中断控制器结构的信息

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This commit is contained in:
fslongjin 2022-03-13 17:12:20 +08:00
parent 9dd1c65cae
commit 1f3c8bc204
6 changed files with 119 additions and 47 deletions
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79
kernel/driver/acpi/acpi.c
View File

@ -4,6 +4,9 @@
#include "../multiboot2/multiboot2.h"
#include "../../mm/mm.h"
// 获取RSDT entry的虚拟地址
#define acpi_get_RSDT_entry_vaddr(phys_addr) (ACPI_DESCRIPTION_HEDERS_BASE + MASK_HIGH_32bit(phys_addr) - acpi_RSDT_entry_phys_base)
static struct acpi_RSDP_t *rsdpv1;
static struct acpi_RSDP_2_t *rsdpv2;
static struct acpi_RSDT_Structure_t *rsdt;
@ -14,7 +17,6 @@ static struct multiboot_tag_new_acpi_t new_acpi;
static ul acpi_RSDT_offset = 0;
static uint acpi_RSDT_Entry_num = 0;
// RSDT中的第一个entry所在物理页的基地址
static ul acpi_RSDT_entry_phys_base = 0;
@ -23,15 +25,61 @@ static ul acpi_RSDT_entry_phys_base = 0;
* @param _fun 迭代操作调用的函数
* @param _data 数据
*/
void acpi_iter_SDT(bool (*_fun)(const struct acpi_iter_SDT_header_t *, void *),
void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_header_t *, void *),
void *_data)
{
struct acpi_system_description_table_header_t *sdt_header;
uint *ent = &(rsdt->Entry);
for (int i = 0; i < acpi_RSDT_Entry_num; ++i)
{
sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent + i))));
if (_fun(sdt_header, _data) == true)
return;
}
return;
}
static ul acpi_get_RSDT_entry_vaddr(ul phys_addr)
/**
* @brief 获取MADT信息 Multiple APIC Description Table
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data 返回信息的结构体指针
* @param count 返回数组的长度
* @return true
* @return false
*/
bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_data, void *_data)
{
return ACPI_DESCRIPTION_HEDERS_BASE + MASK_HIGH_32bit(phys_addr) - acpi_RSDT_entry_phys_base;
if (!(_iter_data->Signature[0] == 'A' && _iter_data->Signature[1] == 'P' && _iter_data->Signature[2] == 'I' && _iter_data->Signature[3] == 'C'))
return false;
//*(struct acpi_Multiple_APIC_Description_Table_t *)_data = *(struct acpi_Multiple_APIC_Description_Table_t *)_iter_data;
*(ul*)_data = _iter_data;
kdebug("_iter_data = %#018lx", (ul)_iter_data);
kdebug("_data = %#018lx", (ul)_data);
//_data = _iter_data;
/*
void *ent = (void *)(_iter_data) + sizeof(struct acpi_Multiple_APIC_Description_Table_t);
struct apic_Interrupt_Controller_Structure_header_t *header;
for (int i = 0; i < 17; ++i)
{
header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
kdebug("[ %d ] type=%d, length=%d", i, header->type, header->length);
if (header->type == 1)
{
struct acpi_IO_APIC_Structure_t *t = (struct acpi_IO_APIC_Structure_t *)ent;
kdebug("IO apic addr = %#018lx", t->IO_APIC_Address);
}
ent += header->length;
}
*/
return true;
}
/**
* @brief 初始化acpi模块
*
@ -63,13 +111,12 @@ void acpi_init()
kdebug("Rsdt_v2_phys_Address=%#018lx", rsdpv2->rsdp1.RsdtAddress);
kdebug("RSDP_v2_Revision=%d", rsdpv2->rsdp1.Revision);
rsdt = ACPI_RSDT_VIRT_ADDR_BASE + acpi_RSDT_offset;
rsdt = (struct acpi_RSDT_Structure_t *)(ACPI_RSDT_VIRT_ADDR_BASE + acpi_RSDT_offset);
// 计算RSDT Entry的数量
kdebug("offset=%d", sizeof(rsdt->header));
acpi_RSDT_Entry_num = (rsdt->header.Length - 36) / 4;
printk_color(ORANGE, BLACK, "%s\n", rsdt->header.Signature);
printk_color(ORANGE, BLACK, "RSDT Length=%dbytes.\n", rsdt->header.Length);
printk_color(ORANGE, BLACK, "RSDT Entry num=%d\n", acpi_RSDT_Entry_num);
@ -78,26 +125,8 @@ void acpi_init()
// 由于地址只是32bit的，并且存在脏数据，这里需要手动清除高32bit，否则会触发#GP
acpi_RSDT_entry_phys_base = MASK_HIGH_32bit(acpi_RSDT_entry_phys_base);
kdebug("entry=%#018lx", rsdt->Entry);
kdebug("acpi_RSDT_entry_phys_base=%#018lx", acpi_RSDT_entry_phys_base);
// 映射RSDT ENTRY的物理地址
mm_map_phys_addr(ACPI_DESCRIPTION_HEDERS_BASE, acpi_RSDT_entry_phys_base, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
// 设置第一个entry的虚拟地址
struct acpi_system_description_table_header_t *sdt_header;
uint* ent = &(rsdt->Entry);
for (int i = 0; i < acpi_RSDT_Entry_num; ++i)
{
kdebug("entry_addr_phys[ %d ]= %#018lx", i, MASK_HIGH_32bit((ul)(*(ent+i))));
sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent+i))));
if(i<7)
{
struct acpi_Multiple_APIC_Description_Table_t *madt = (struct acpi_Multiple_APIC_Description_Table_t*)sdt_header;
for(int j=0;j<4;++j)
printk_color(ORANGE, BLACK, "%c", madt->header.Signature[j]);
printk("\n");
kdebug("length=%d", madt->header.Length);
}
}
}

32
kernel/driver/acpi/acpi.h
View File

@ -5,6 +5,7 @@
#pragma once
#include "../../common/glib.h"
#include "../../mm/mm.h"
#define ACPI_ICS_TYPE_PROCESSOR_LOCAL_APIC 0
#define ACPI_ICS_TYPE_IO_APIC 1
@ -25,11 +26,9 @@
// 0x10-0x7f Reserved. OSPM skips structures of the reserved type.
// 0x80-0xff Reserved for OEM use
#define ACPI_RSDT_VIRT_ADDR_BASE 0xffff80000a000000UL
#define ACPI_RSDT_VIRT_ADDR_BASE SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + ACPI_RSDT_MAPPING_OFFSET
#define ACPI_DESCRIPTION_HEDERS_BASE ACPI_RSDT_VIRT_ADDR_BASE + PAGE_2M_SIZE
struct acpi_RSDP_t
{
unsigned char Signature[8];
@ -85,7 +84,7 @@ struct acpi_Multiple_APIC_Description_Table_t
// Multiple APIC flags, 详见 ACPI Specification Version 6.3, Table 5-44
uint flags;
void *Interrupt_Controller_Structure;
// 接下来的(length-44)字节是Interrupt Controller Structure
};
struct apic_Interrupt_Controller_Structure_header_t
@ -105,7 +104,7 @@ struct acpi_Processor_Local_APIC_Structure_t
uint flags;
};
struct acpi_Processor_IO_APIC_Structure_t
struct acpi_IO_APIC_Structure_t
{
// type=1
struct apic_Interrupt_Controller_Structure_header_t header;
@ -140,22 +139,16 @@ struct acpi_XSDT_Structure_t
ul *Entry;
};
// 要被迭代的系统描述表的开头的sign
struct acpi_iter_SDT_header_t
{
unsigned char Signature[8];
};
/**
* @brief 迭代器，用于迭代描述符头（位于ACPI标准文件的Table 5-29）
* @param _fun 迭代操作调用的函数
* @param _data 数据
*/
void acpi_iter_SDT(bool (*_fun)(const struct acpi_iter_SDT_header_t *, void *),
void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_header_t *, void *),
void *_data);
/**
* @brief 获取MADT信息
* @brief 获取MADT信息 Multiple APIC Description Table
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data 返回信息的结构体指针
@ -163,7 +156,18 @@ void acpi_iter_SDT(bool (*_fun)(const struct acpi_iter_SDT_header_t *, void *),
* @return true
* @return false
*/
bool acpi_get_MADT(const struct acpi_iter_SDT_header_t *_iter_data, void *_data);
bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_data, void *_data);
/**
* @brief 迭代器，用于迭代中断控制器结构(Interrupt Controller Structure)（位于ACPI标准文件的Table 5-45）
* @param _fun 迭代操作调用的函数
* @param _data 数据
*/
void acpi_iter_Interrupt_Controller_Structure(bool (*_fun)(const struct apic_Interrupt_Controller_Structure_header_t *, void *),
void *_data);
// 初始化acpi模块
void acpi_init();

24
kernel/driver/interrupt/apic/apic.c
View File

@ -4,6 +4,7 @@
#include "../../../common/cpu.h"
#include "../../../common/glib.h"
#include "../../../exception/gate.h"
#include "../../acpi/acpi.h"
// 导出定义在irq.c中的中段门表
extern void (*interrupt_table[24])(void);
@ -13,6 +14,8 @@ bool flag_support_x2apic = false;
uint local_apic_version;
uint local_apic_max_LVT_entries;
static struct acpi_Multiple_APIC_Description_Table_t *madt;
/**
* @brief 初始化io_apic
*
@ -27,7 +30,28 @@ void apic_io_apic_init()
io_out8(0x21, 0xff);
io_out8(0xa1, 0xff);
kdebug("8259A Masked.");
ul madt_addr;
kdebug("madt_addr = %#018lx", (ul)madt_addr);
acpi_iter_SDT(acpi_get_MADT, &madt_addr);
madt = (struct acpi_Multiple_APIC_Description_Table_t *)madt_addr;
kdebug("MADT->local intr controller addr=%#018lx", madt->Local_Interrupt_Controller_Address);
kdebug("MADT->length= %d bytes", madt->header.Length);
void *ent = (void *)(madt_addr) + sizeof(struct acpi_Multiple_APIC_Description_Table_t);
struct apic_Interrupt_Controller_Structure_header_t *header;
for (int i = 0; i < 17; ++i)
{
header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
kdebug("[ %d ] type=%d, length=%d", i, header->type, header->length);
if (header->type == 1)
{
struct acpi_IO_APIC_Structure_t *t = (struct acpi_IO_APIC_Structure_t *)ent;
kdebug("IO apic addr = %#018lx", t->IO_APIC_Address);
}
ent += header->length;
}
apic_local_apic_init();
sti();
}

12
kernel/driver/interrupt/apic/apic.h
View File

@ -4,6 +4,18 @@
#include"../../../process/ptrace.h"
#include"../../../exception/irq.h"
struct apic_IO_APIC_map
{
// 间接访问寄存器的物理基地址
uint addr_phys;
// 索引寄存器虚拟地址
unsigned char* virtual_index_addr;
// 数据寄存器虚拟地址
uint* virtual_data_addr;
// EOI寄存器虚拟地址
uint* virtual_EOI_addr;
}apic_ioapic_map;
/**
* @brief 中断服务程序
*

12
kernel/mm/mm.c
View File

@ -492,7 +492,7 @@ void init_frame_buffer()
{
kinfo("Re-mapping VBE frame buffer...");
global_CR3 = get_CR3();
ul fb_virt_addr = 0xffff800008000000;
ul fb_virt_addr = SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + FRAME_BUFFER_MAPPING_OFFSET;
ul fb_phys_addr = get_VBE_FB_phys_addr();
// 计算帧缓冲区的线性地址对应的pml4页表项的地址
@ -514,21 +514,20 @@ void init_frame_buffer()
ul vbe_fb_length = get_VBE_FB_length();
ul *tmp1;
// 初始化2M物理页
for (ul i = 0; i < (vbe_fb_length<<2); i += PAGE_2M_SIZE)
for (ul i = 0; i < (vbe_fb_length << 2); i += PAGE_2M_SIZE)
{
// 计算当前2M物理页对应的pdt的页表项的物理地址
tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((ul)(fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));
// 页面写穿，禁止缓存
set_pdt(tmp1, mk_pdt((ul)fb_phys_addr+i, PAGE_KERNEL_PAGE| PAGE_PWT| PAGE_PCD));
set_pdt(tmp1, mk_pdt((ul)fb_phys_addr + i, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD));
}
set_pos_VBE_FB_addr((uint*)fb_virt_addr);
set_pos_VBE_FB_addr((uint *)fb_virt_addr);
flush_tlb();
kinfo("VBE frame buffer successfully Re-mapped!");
}
/**
* @brief 将物理地址映射到页表的函数
*
@ -565,11 +564,10 @@ void mm_map_phys_addr(ul virt_addr_start, ul phys_addr_start, ul length, ul flag
tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((ul)(virt_addr_start + i) >> PAGE_2M_SHIFT) & 0x1ff));
// 页面写穿，禁止缓存
set_pdt(tmp1, mk_pdt((ul)phys_addr_start+i, flags));
set_pdt(tmp1, mk_pdt((ul)phys_addr_start + i, flags));
++js;
}
kdebug("js=%d", js);
flush_tlb();
}

5
kernel/mm/mm.h
View File

@ -35,6 +35,11 @@
#define Virt_To_2M_Page(kaddr) (memory_management_struct.pages_struct + (virt_2_phys(kaddr) >> PAGE_2M_SHIFT))
#define Phy_to_2M_Page(kaddr) (memory_management_struct.pages_struct + ((unsigned long)(kaddr) >> PAGE_2M_SHIFT))
// 在这个地址以上的虚拟空间，用来进行特殊的映射
#define SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE 0xffff800000000000UL
#define FRAME_BUFFER_MAPPING_OFFSET 0x3000000UL
#define ACPI_RSDT_MAPPING_OFFSET 0x7000000UL
#define IO_APIC_MAPPING_OFFSET 0x8000000UL
// ===== 内存区域属性 =====
// DMA区域
#define ZONE_DMA (1 << 0)