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[Qemu-devel] [PATCH 05/10] cpu-exec: elide more icount code if CONFIG_US


From: Paolo Bonzini
Subject: [Qemu-devel] [PATCH 05/10] cpu-exec: elide more icount code if CONFIG_USER_ONLY
Date: Wed, 12 Aug 2015 18:40:57 +0200

Signed-off-by: Paolo Bonzini <address@hidden>
---
 cpu-exec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cpu-exec.c b/cpu-exec.c
index 599e64d..bde5fd1 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -228,6 +228,7 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, 
uint8_t *tb_ptr)
     return next_tb;
 }
 
+#if defined(CONFIG_SOFTMMU)
 /* Execute the code without caching the generated code. An interpreter
    could be used if available. */
 static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
@@ -251,6 +252,7 @@ static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
     tb_phys_invalidate(tb, -1);
     tb_free(tb);
 }
+#endif
 
 static TranslationBlock *tb_find_slow(CPUState *cpu,
                                       target_ulong pc,
@@ -523,6 +525,9 @@ int cpu_exec(CPUState *cpu)
                     case TB_EXIT_ICOUNT_EXPIRED:
                     {
                         /* Instruction counter expired.  */
+#ifdef CONFIG_USER_ONLY
+                        abort();
+#else
                         int insns_left = cpu->icount_decr.u32;
                         if (cpu->icount_extra && insns_left >= 0) {
                             /* Refill decrementer and continue execution.  */
@@ -542,6 +547,7 @@ int cpu_exec(CPUState *cpu)
                             cpu_loop_exit(cpu);
                         }
                         break;
+#endif
                     }
                     default:
                         break;
-- 
1.8.3.1





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