msr.h
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上传日期:2013-04-10
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文件大小:6k
- #ifndef X86_64_MSR_H
- #define X86_64_MSR_H 1
- #ifndef __ASSEMBLY__
- /*
- * Access to machine-specific registers (available on 586 and better only)
- * Note: the rd* operations modify the parameters directly (without using
- * pointer indirection), this allows gcc to optimize better
- */
- #define rdmsr(msr,val1,val2)
- __asm__ __volatile__("rdmsr"
- : "=a" (val1), "=d" (val2)
- : "c" (msr))
- #define rdmsrl(msr,val) do { unsigned long a__,b__;
- __asm__ __volatile__("rdmsr"
- : "=a" (a__), "=d" (b__)
- : "c" (msr));
- val = a__ | (b__<<32);
- } while(0);
- #define wrmsr(msr,val1,val2)
- __asm__ __volatile__("wrmsr"
- : /* no outputs */
- : "c" (msr), "a" (val1), "d" (val2))
- #define wrmsrl(msr,val) wrmsr(msr,(__u32)((__u64)(val)),((__u64)(val))>>32)
- /* wrmsrl with exception handling */
- #define checking_wrmsrl(msr,val) ({ int ret__;
- asm volatile("2: wrmsr ; xorl %0,%0n"
- "1:nt"
- ".section .fixup,"ax"nt"
- "3: movl %4,%0 ; jmp 1bnt"
- ".previousnt"
- ".section __ex_table,"a"n"
- " .align 8nt"
- " .quad 2b,3bnt"
- ".previous"
- : "=a" (ret__)
- : "c" (msr), "0" ((__u32)val), "d" ((val)>>32), "i" (-EFAULT));
- ret__; })
- #define rdtsc(low,high)
- __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
- #define rdtscl(low)
- __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
- #define rdtscll(val) do {
- unsigned int a,d;
- asm volatile("rdtsc" : "=a" (a), "=d" (d));
- (val) = ((unsigned long)a) | (((unsigned long)d)<<32);
- } while(0)
- #define rdpmc(counter,low,high)
- __asm__ __volatile__("rdpmc"
- : "=a" (low), "=d" (high)
- : "c" (counter))
- #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
- #define rdpmc(counter,low,high)
- __asm__ __volatile__("rdpmc"
- : "=a" (low), "=d" (high)
- : "c" (counter))
- #endif
- /* AMD/K8 specific MSRs */
- #define MSR_EFER 0xc0000080 /* extended feature register */
- #define MSR_STAR 0xc0000081 /* legacy mode SYSCALL target */
- #define MSR_LSTAR 0xc0000082 /* long mode SYSCALL target */
- #define MSR_CSTAR 0xc0000083 /* compatibility mode SYSCALL target */
- #define MSR_SYSCALL_MASK 0xc0000084 /* EFLAGS mask for syscall */
- #define MSR_FS_BASE 0xc0000100 /* 64bit GS base */
- #define MSR_GS_BASE 0xc0000101 /* 64bit FS base */
- #define MSR_KERNEL_GS_BASE 0xc0000102 /* SwapGS GS shadow (or USER_GS from kernel) */
- /* EFER bits: */
- #define _EFER_SCE 0 /* SYSCALL/SYSRET */
- #define _EFER_LME 8 /* Long mode enable */
- #define _EFER_LMA 10 /* Long mode active (read-only) */
- #define _EFER_NX 11 /* No execute enable */
- #define EFER_SCE (1<<_EFER_SCE)
- #define EFER_LME (1<<EFER_LME)
- #define EFER_LMA (1<<EFER_LMA)
- #define EFER_NX (1<<_EFER_NX)
- /* Intel MSRs. Some also available on other CPUs */
- #define MSR_IA32_PLATFORM_ID 0x17
- #define MSR_IA32_PERFCTR0 0xc1
- #define MSR_IA32_PERFCTR1 0xc2
- #define MSR_MTRRcap 0x0fe
- #define MSR_IA32_BBL_CR_CTL 0x119
- #define MSR_IA32_MCG_CAP 0x179
- #define MSR_IA32_MCG_STATUS 0x17a
- #define MSR_IA32_MCG_CTL 0x17b
- #define MSR_IA32_EVNTSEL0 0x186
- #define MSR_IA32_EVNTSEL1 0x187
- #define MSR_IA32_DEBUGCTLMSR 0x1d9
- #define MSR_IA32_LASTBRANCHFROMIP 0x1db
- #define MSR_IA32_LASTBRANCHTOIP 0x1dc
- #define MSR_IA32_LASTINTFROMIP 0x1dd
- #define MSR_IA32_LASTINTTOIP 0x1de
- #define MSR_MTRRfix64K_00000 0x250
- #define MSR_MTRRfix16K_80000 0x258
- #define MSR_MTRRfix16K_A0000 0x259
- #define MSR_MTRRfix4K_C0000 0x268
- #define MSR_MTRRfix4K_C8000 0x269
- #define MSR_MTRRfix4K_D0000 0x26a
- #define MSR_MTRRfix4K_D8000 0x26b
- #define MSR_MTRRfix4K_E0000 0x26c
- #define MSR_MTRRfix4K_E8000 0x26d
- #define MSR_MTRRfix4K_F0000 0x26e
- #define MSR_MTRRfix4K_F8000 0x26f
- #define MSR_MTRRdefType 0x2ff
- #define MSR_IA32_MC0_CTL 0x400
- #define MSR_IA32_MC0_STATUS 0x401
- #define MSR_IA32_MC0_ADDR 0x402
- #define MSR_IA32_MC0_MISC 0x403
- #define MSR_P6_PERFCTR0 0xc1
- #define MSR_P6_PERFCTR1 0xc2
- #define MSR_P6_EVNTSEL0 0x186
- #define MSR_P6_EVNTSEL1 0x187
- /* K7/K8 MSRs. Not complete. See the architecture manual for a more complete list. */
- #define MSR_K7_EVNTSEL0 0xC0010000
- #define MSR_K7_PERFCTR0 0xC0010004
- #define MSR_K7_EVNTSEL1 0xC0010001
- #define MSR_K7_PERFCTR1 0xC0010005
- #define MSR_K7_EVNTSEL2 0xC0010002
- #define MSR_K7_PERFCTR2 0xC0010006
- #define MSR_K7_EVNTSEL3 0xC0010003
- #define MSR_K7_PERFCTR3 0xC0010007
- #define MSR_K8_TOP_MEM1 0xC001001A
- #define MSR_K8_TOP_MEM2 0xC001001D
- #define MSR_K8_SYSCFG 0xC0000010
- /* K6 MSRs */
- #define MSR_K6_EFER 0xC0000080
- #define MSR_K6_STAR 0xC0000081
- #define MSR_K6_WHCR 0xC0000082
- #define MSR_K6_UWCCR 0xC0000085
- #define MSR_K6_PSOR 0xC0000087
- #define MSR_K6_PFIR 0xC0000088
- /* Centaur-Hauls/IDT defined MSRs. */
- #define MSR_IDT_FCR1 0x107
- #define MSR_IDT_FCR2 0x108
- #define MSR_IDT_FCR3 0x109
- #define MSR_IDT_FCR4 0x10a
- #define MSR_IDT_MCR0 0x110
- #define MSR_IDT_MCR1 0x111
- #define MSR_IDT_MCR2 0x112
- #define MSR_IDT_MCR3 0x113
- #define MSR_IDT_MCR4 0x114
- #define MSR_IDT_MCR5 0x115
- #define MSR_IDT_MCR6 0x116
- #define MSR_IDT_MCR7 0x117
- #define MSR_IDT_MCR_CTRL 0x120
- /* VIA Cyrix defined MSRs*/
- #define MSR_VIA_FCR 0x1107
- /* Intel defined MSRs. */
- #define MSR_IA32_P5_MC_ADDR 0
- #define MSR_IA32_P5_MC_TYPE 1
- #define MSR_IA32_PLATFORM_ID 0x17
- #define MSR_IA32_EBL_CR_POWERON 0x2a
- #define MSR_IA32_APICBASE 0x1b
- #define MSR_IA32_APICBASE_BSP (1<<8)
- #define MSR_IA32_APICBASE_ENABLE (1<<11)
- #define MSR_IA32_APICBASE_BASE (0xfffff<<12)
- #endif