diff options
Diffstat (limited to 'arch/i386/include/kernel/asm.h')
| -rw-r--r-- | arch/i386/include/kernel/asm.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/arch/i386/include/kernel/asm.h b/arch/i386/include/kernel/asm.h index 615da74..cf394e1 100644 --- a/arch/i386/include/kernel/asm.h +++ b/arch/i386/include/kernel/asm.h @@ -3,6 +3,23 @@ #include <stdint.h> +extern uintptr_t _kernel_start; +extern uintptr_t _kernel_end; +#define KSTART ((uintptr_t)&_kernel_start) +#define KEND ((uintptr_t)&_kernel_end - 0xC0000000) + +#define HIMEM_START 0x00100000 +#define PAGE_SIZE 4096 + +struct thread_block { + uint32_t esp; + uint32_t cr3; + unsigned int tid; + unsigned int tgid; + unsigned int state; + struct thread_block *next; +}; + struct regs { uint32_t cr4; uint32_t cr3; @@ -87,17 +104,18 @@ static inline uint8_t inb(uint16_t port) { static inline void enable_ints(void) { __asm__ volatile("sti"); - return; } static inline void disable_ints(void) { __asm__ volatile("cli"); - return; } static inline void flush_tss(void) { __asm__ volatile("movw $0x28, %ax; ltr %ax"); - return; +} + +static inline void invlpg(void *addr) { + __asm__ volatile("invlpg (%0)" : : "b"(addr) : "memory"); } #endif |