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sched: add kernel-mode context switching

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This commit is contained in:
max 🍓
2023-04-30 14:27:57 +01:00
parent 2cb2d9100a
commit 085c3d2a89
12 changed files with 340 additions and 27 deletions
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34
arch/x86_64/include/arch/irq.h
View File

@@ -36,32 +36,32 @@ struct irq_hook {
};
struct cpu_context {
uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
uint64_t rdi, rsi, rbp, unused_rsp, rbx, rdx, rcx, rax;
uint64_t int_no, err_no;
uint64_t rip, cs, rflags, rsp, ss;
uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
uint64_t rdi, rsi, rbp, unused_rsp, rbx, rdx, rcx, rax;
uint64_t int_no, err_no;
uint64_t rip, cs, rflags, rsp, ss;
} __packed;
struct idt_entry {
uint16_t base_low;
uint16_t selector;
uint8_t always0;
uint8_t type : 4;
uint8_t zero : 1;
uint8_t dpl : 2;
uint8_t present : 1;
uint16_t base_middle;
uint32_t base_high;
uint32_t reserved;
uint16_t base_low;
uint16_t selector;
uint8_t always0;
uint8_t type : 4;
uint8_t zero : 1;
uint8_t dpl : 2;
uint8_t present : 1;
uint16_t base_middle;
uint32_t base_high;
uint32_t reserved;
} __packed;
struct idt {
struct idt_entry i_entries[NR_IDT_ENTRIES];
struct idt_entry i_entries[NR_IDT_ENTRIES];
};
struct idt_ptr {
uint16_t i_limit;
uintptr_t i_base;
uint16_t i_limit;
uintptr_t i_base;
} __packed;
typedef void (*int_hook)(struct cpu_context *);

10
arch/x86_64/include/socks/machine/thread.h Normal file
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@@ -0,0 +1,10 @@
#ifndef SOCKS_X86_64_THREAD_H_
#define SOCKS_X86_64_THREAD_H_
#include <socks/sched.h>
extern void switch_to(struct thread *from, struct thread *to);
extern void prepare_stack(uintptr_t ip, uintptr_t *sp);
extern void user_jump(uintptr_t ip, uintptr_t sp);
#endif