On 11/14/25 09:29, [email protected] wrote:
From: Nguyen Dinh Phi <[email protected]>

Currently, this function is only available in MSHV. If a different accelerator
is used, and the code jumps to this section, a segfault will occur.
(I ran into this with HVF)

Signed-off-by: Nguyen Dinh Phi <[email protected]>

Applied, thanks.

Paolo

---
  target/i386/emulate/x86_decode.c | 6 +++++-
  1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/target/i386/emulate/x86_decode.c b/target/i386/emulate/x86_decode.c
index 97bd6f1a3b..d037ed1142 100644
--- a/target/i386/emulate/x86_decode.c
+++ b/target/i386/emulate/x86_decode.c
@@ -77,7 +77,11 @@ static inline uint64_t decode_bytes(CPUX86State *env, struct 
x86_decode *decode,
          memcpy(&val, decode->stream->bytes + decode->len, size);
      } else {
          target_ulong va = linear_rip(env_cpu(env), env->eip) + decode->len;
-        emul_ops->fetch_instruction(env_cpu(env), &val, va, size);
+        if (emul_ops->fetch_instruction) {
+            emul_ops->fetch_instruction(env_cpu(env), &val, va, size);
+        } else {
+            emul_ops->read_mem(env_cpu(env), &val, va, size);
+        }
      }
      decode->len += size;


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