[PATCH v3 11/13] accel/tcg: Restrict icount to system emulation

[Philippe Mathieu-Daudé]

So far we don't support icount on user emulation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240428221450.26460-24-philmd@linaro.org>
---
 accel/tcg/cpu-exec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 2af0e964c1..49b4b57a56 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -781,6 +781,9 @@ static inline bool cpu_handle_exception(CPUState *cpu, int 
*ret)
 
 static inline bool icount_exit_request(CPUState *cpu)
 {
+#if defined(CONFIG_USER_ONLY)
+    return false;
+#else
     if (!icount_enabled()) {
         return false;
     }
@@ -788,6 +791,7 @@ static inline bool icount_exit_request(CPUState *cpu)
         return false;
     }
     return cpu->neg.icount_decr.u16.low + cpu->icount_extra == 0;
+#endif
 }
 
 static inline bool cpu_handle_interrupt(CPUState *cpu,
@@ -802,12 +806,14 @@ static inline bool cpu_handle_interrupt(CPUState *cpu,
         return false;
     }
 
+#if !defined(CONFIG_USER_ONLY)
     /* Clear the interrupt flag now since we're processing
      * cpu->interrupt_request and cpu->exit_request.
      * Ensure zeroing happens before reading cpu->exit_request or
      * cpu->interrupt_request (see also smp_wmb in cpu_exit())
      */
     qatomic_set_mb(&cpu->neg.icount_decr.u16.high, 0);
+#endif /* !CONFIG_USER_ONLY */
 
     if (unlikely(qatomic_read(&cpu->interrupt_request))) {
         int interrupt_request;
-- 
2.41.0