1 files changed, 3 insertions, 0 deletions
diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index ac04a9d4a2..233b1a3fc3 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -46,9 +46,12 @@ typedef struct TPMIfClass {
 } TPMIfClass;
 
 #define TYPE_TPM_TIS                "tpm-tis"
+#define TYPE_TPM_CRB                "tpm-crb"
 
 #define TPM_IS_TIS(chr)                             \
     object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS)
+#define TPM_IS_CRB(chr)                             \
+    object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
 
 /* returns NULL unless there is exactly one TPM device */
 static inline TPMIf *tpm_find(void)