1 files changed, 13 insertions, 4 deletions
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index a719aa6e63..f8af6daa70 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -1154,12 +1154,21 @@ static void riscv_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
     }
     ctx->nftemp = 0;
 
+    /* Only the first insn within a TB is allowed to cross a page boundary. */
     if (ctx->base.is_jmp == DISAS_NEXT) {
-        target_ulong page_start;
-
-        page_start = ctx->base.pc_first & TARGET_PAGE_MASK;
-        if (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE) {
+        if (!is_same_page(&ctx->base, ctx->base.pc_next)) {
             ctx->base.is_jmp = DISAS_TOO_MANY;
+        } else {
+            unsigned page_ofs = ctx->base.pc_next & ~TARGET_PAGE_MASK;
+
+            if (page_ofs > TARGET_PAGE_SIZE - MAX_INSN_LEN) {
+                uint16_t next_insn = cpu_lduw_code(env, ctx->base.pc_next);
+                int len = insn_len(next_insn);
+
+                if (!is_same_page(&ctx->base, ctx->base.pc_next + len)) {
+                    ctx->base.is_jmp = DISAS_TOO_MANY;
+                }
+            }
         }
     }
 }