diff --git a/qemu/target/i386/cpu.h b/qemu/target/i386/cpu.h
index cce53400..1d3af012 100644
--- a/qemu/target/i386/cpu.h
+++ b/qemu/target/i386/cpu.h
@@ -394,6 +394,21 @@
 #define MSR_MC0_ADDR                    0x402
 #define MSR_MC0_MISC                    0x403
 
+#define MSR_IA32_RTIT_OUTPUT_BASE       0x560
+#define MSR_IA32_RTIT_OUTPUT_MASK       0x561
+#define MSR_IA32_RTIT_CTL               0x570
+#define MSR_IA32_RTIT_STATUS            0x571
+#define MSR_IA32_RTIT_CR3_MATCH         0x572
+#define MSR_IA32_RTIT_ADDR0_A           0x580
+#define MSR_IA32_RTIT_ADDR0_B           0x581
+#define MSR_IA32_RTIT_ADDR1_A           0x582
+#define MSR_IA32_RTIT_ADDR1_B           0x583
+#define MSR_IA32_RTIT_ADDR2_A           0x584
+#define MSR_IA32_RTIT_ADDR2_B           0x585
+#define MSR_IA32_RTIT_ADDR3_A           0x586
+#define MSR_IA32_RTIT_ADDR3_B           0x587
+#define MAX_RTIT_ADDRS                  8
+
 #define MSR_EFER                        0xc0000080
 
 #define MSR_EFER_SCE   (1 << 0)