xnu-517.tar.gz

[apple/xnu.git] / osfmk / i386 / proc_reg.h

diff --git a/osfmk/i386/proc_reg.h b/osfmk/i386/proc_reg.h
index 74d9d50ebe15465dc0a78d541fe79c0b285da51c..a598cb8d59a5a5dea76b1b31d8b290c084720f50 100644 (file)
--- a/osfmk/i386/proc_reg.h
+++ b/osfmk/i386/proc_reg.h
@@ -142,6 +142,8 @@
 /*
  * CR4
  */
+#define CR4_FXS 0x00000200     /* SSE/SSE2 OS supports FXSave */
+#define CR4_XMM 0x00000400     /* SSE/SSE2 instructions supported in OS */
 #define        CR4_MCE 0x00000040      /* p5:   Machine Check Exceptions */
 #define        CR4_PSE 0x00000010      /* p5:   Page Size Extensions */
 #define        CR4_DE  0x00000008      /* p5:   Debugging Extensions */
@@ -250,7 +252,82 @@ extern __inline__ void invlpg(unsigned long addr)
 {
        __asm__  volatile("invlpg (%0)" :: "r" (addr) : "memory");
 }
+
+/*
+ * 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,lo,hi) \
+       __asm__ volatile("rdmsr" : "=a" (lo), "=d" (hi) : "c" (msr))
+
+#define wrmsr(msr,lo,hi) \
+       __asm__ volatile("wrmsr" : : "c" (msr), "a" (lo), "d" (hi))
+
+#define rdtsc(lo,hi) \
+       __asm__ volatile("rdtsc" : "=a" (lo), "=d" (hi))
+
+#define write_tsc(lo,hi) wrmsr(0x10, lo, hi)
+
+#define rdpmc(counter,lo,hi) \
+       __asm__ volatile("rdpmc" : "=a" (lo), "=d" (hi) : "c" (counter))
+
+extern __inline__ uint64_t rdmsr64(uint32_t msr)
+{
+       uint64_t ret;
+       __asm__ volatile("rdmsr" : "=A" (ret) : "c" (msr));
+       return ret;
+}
+
+extern __inline__ void wrmsr64(uint32_t msr, uint64_t val)
+{
+       __asm__ volatile("wrmsr" : : "c" (msr), "A" (val));
+}
+
+extern __inline__ uint64_t rdtsc64(void)
+{
+       uint64_t ret;
+       __asm__ volatile("rdtsc" : "=A" (ret));
+       return ret;
+}
 #endif /* __GNUC__ */
 #endif /* ASSEMBLER */
 
+#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_APIC_BASE             0x1b
+#define MSR_IA32_APIC_BASE_BSP         (1<<8)
+#define MSR_IA32_APIC_BASE_ENABLE      (1<<11)
+#define MSR_IA32_APIC_BASE_BASE                (0xfffff<<12)
+
+#define MSR_IA32_UCODE_WRITE           0x79
+#define MSR_IA32_UCODE_REV             0x8b
+
+#define MSR_IA32_PERFCTR0              0xc1
+#define MSR_IA32_PERFCTR1              0xc2
+
+#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_IA32_MC0_CTL               0x400
+#define MSR_IA32_MC0_STATUS            0x401
+#define MSR_IA32_MC0_ADDR              0x402
+#define MSR_IA32_MC0_MISC              0x403
+
 #endif /* _I386_PROC_REG_H_ */