diff --git a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
index 6454dd9..96d51c2 100644
--- a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
+++ b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h
@@ -15,4 +15,7 @@
 int bd82x6x_init_pci_devices(void);
 int bd82x6x_init(void);
 
+struct x86_cpu_priv;
+int model_206ax_init(struct x86_cpu_priv *cpu);
+
 #endif
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 6027d59..2cbb270 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -326,6 +326,8 @@
 #define MSR_AMD_PERF_STATUS		0xc0010063
 #define MSR_AMD_PERF_CTL		0xc0010062
 
+#define MSR_PMG_CST_CONFIG_CTL		0x000000e2
+#define MSR_PMG_IO_CAPTURE_ADR		0x000000e4
 #define MSR_IA32_MPERF			0x000000e7
 #define MSR_IA32_APERF			0x000000e8