Cpu Class Reference

Public Types
enum	{   EXC_NM = 7 , EXC_TS = 10 , EXC_GP = 13 , EXC_PF = 14 ,   EXC_AC = 17 }

Static Public Member Functions
static ALWAYS_INLINE mword	cr3 ()
static ALWAYS_INLINE void	flush ()
static ALWAYS_INLINE void	flush (mword addr)
static ALWAYS_INLINE void	preempt_disable ()
static ALWAYS_INLINE void	preempt_enable ()
ALWAYS_INLINE static NORETURN void	shutdown ()
static ALWAYS_INLINE void	cpuid (unsigned leaf, uint32 &eax, uint32 &ebx, uint32 &ecx, uint32 &edx)
static ALWAYS_INLINE void	cpuid (unsigned leaf, unsigned subleaf, uint32 &eax, uint32 &ebx, uint32 &ecx, uint32 &edx)

Member Enumeration Documentation

anonymous enum

anonymous enum

        {
            EXC_NM      = 7,    /* No Math Coprocessor */
            EXC_TS      = 10,   /* Invalid TSS */
            EXC_GP      = 13,   /* General Protection */
            EXC_PF      = 14,   /* Page Fault */
            EXC_AC      = 17    /* Alignment Check */
        };

Member Function Documentation

cpuid() [1/2]

ALWAYS_INLINE void Cpu::cpuid ( unsigned leaf, uint32 & eax, uint32 & ebx, uint32 & ecx, uint32 & edx )

inlinestatic

        {
            asm volatile ("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (leaf));
        }

cpuid() [2/2]

ALWAYS_INLINE void Cpu::cpuid ( unsigned leaf, unsigned subleaf, uint32 & eax, uint32 & ebx, uint32 & ecx, uint32 & edx )

inlinestatic

        {
            asm volatile ("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (leaf), "c" (subleaf));
        }

cr3()

ALWAYS_INLINE mword Cpu::cr3 ( )

inlinestatic

        {
            mword cr3;
            asm volatile ("mov  %%cr3, %0" : "=r"(cr3));
            return cr3;
        }

flush() [1/2]

ALWAYS_INLINE void Cpu::flush ( )

inlinestatic

        {
            mword cr3;
            asm volatile ("mov %%cr3, %0; mov %0, %%cr3" : "=&r" (cr3));
        }

flush() [2/2]

ALWAYS_INLINE void Cpu::flush ( mword addr )

inlinestatic

        {
            asm volatile ("invlpg %0" : : "m" (*reinterpret_cast<mword *>(addr)));
        }

preempt_disable()

ALWAYS_INLINE void Cpu::preempt_disable ( )

inlinestatic

        {
            asm volatile ("cli" : : : "memory");
        }

preempt_enable()

ALWAYS_INLINE void Cpu::preempt_enable ( )

inlinestatic

        {
            asm volatile ("sti" : : : "memory");
        }

shutdown()

ALWAYS_INLINE static NORETURN void Cpu::shutdown ( )

inlinestatic

        {
            for (;;)
                asm volatile ("cli; hlt");
        }

---

The documentation for this class was generated from the following file:

• include/cpu.h