1 files changed, 19 insertions, 0 deletions
diff --git a/tcg/riscv/tcg-target-reg-bits.h b/tcg/riscv/tcg-target-reg-bits.h
new file mode 100644
index 0000000000..761ca0d774
--- /dev/null
+++ b/tcg/riscv/tcg-target-reg-bits.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define target-specific register size
+ * Copyright (c) 2018 SiFive, Inc
+ */
+
+#ifndef TCG_TARGET_REG_BITS_H
+#define TCG_TARGET_REG_BITS_H
+
+/*
+ * We don't support oversize guests.
+ * Since we will only build tcg once, this in turn requires a 64-bit host.
+ */
+#if __riscv_xlen != 64
+#error "unsupported code generation mode"
+#endif
+#define TCG_TARGET_REG_BITS 64
+
+#endif