[Qemu-devel] [PATCH 2/4] [PATCH] exec interrupt made abstract by accel_yyy()

[Glauber Costa <gcosta@redhat.com>]

---
 cpu-exec.c |   29 ++++++++++++++++++-----------
 exec-all.h |   10 ++++++++++
 kqemu.c    |    3 +++
 3 files changed, 31 insertions(+), 11 deletions(-)

diff --git a/cpu-exec.c b/cpu-exec.c
index 3246264..79da619 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -35,6 +35,22 @@
 #include <sys/ucontext.h>
 #endif
 
+/* FIXME: This does not belong here */
+int kqemu_exec_interrupt(CPUState *env)
+{
+    int ret = 0;
+    if (kqemu_is_ok(env) && env->interrupt_request == 0) {
+        env->eflags = env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK);
+        ret = kqemu_cpu_exec(env);
+        /* put eflags in CPU temporary format */
+        CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+        DF = 1 - (2 * ((env->eflags >> 10) & 1));
+        CC_OP = CC_OP_EFLAGS;
+        env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    }
+    return ret;
+}
+
 int tb_invalidated_flag;
 
 //#define DEBUG_EXEC
@@ -388,16 +404,8 @@ int cpu_exec(CPUState *env1)
                 }
                 env->exception_index = -1;
             }
-#ifdef USE_KQEMU
-            if (kqemu_is_ok(env) && env->interrupt_request == 0) {
-                int ret;
-                env->eflags = env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK);
-                ret = kqemu_cpu_exec(env);
-                /* put eflags in CPU temporary format */
-                CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
-                DF = 1 - (2 * ((env->eflags >> 10) & 1));
-                CC_OP = CC_OP_EFLAGS;
-                env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+
+            if (accel_exec_interrupt(env, &ret)) {
                 if (ret == 1) {
                     /* exception */
                     longjmp(env->jmp_env, 1);
@@ -412,7 +420,6 @@ int cpu_exec(CPUState *env1)
                     }
                 }
             }
-#endif
 
             T0 = 0; /* force lookup of first TB */
             for(;;) {
diff --git a/exec-all.h b/exec-all.h
index 5162307..621e1ca 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -576,6 +576,7 @@ static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
 
 typedef struct QEMUAccel {
     void (*cpu_interrupt)(CPUState *env);
+    int (*exec_interrupt)(CPUState *env);
 } QEMUAccel;
 
 extern QEMUAccel *current_accel;
@@ -591,6 +592,15 @@ static inline void accel_cpu_interrupt(CPUState *env)
         current_accel->cpu_interrupt(env);
 }
 
+static inline int accel_exec_interrupt(CPUState *env, int *ret)
+{
+    if (current_accel && current_accel->exec_interrupt) {
+        *ret = current_accel->exec_interrupt(env);
+        return 1;
+    }
+    return 0;
+}
+
 #ifdef USE_KQEMU
 #define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG | CODE_DIRTY_FLAG))
 
diff --git a/kqemu.c b/kqemu.c
index c46698c..08622ad 100644
--- a/kqemu.c
+++ b/kqemu.c
@@ -167,8 +167,11 @@ void kqemu_cpu_interrupt(CPUState *env)
 #endif
 }
 
+extern int kqemu_exec_interrupt(CPUState *env);
+
 QEMUAccel kqemu_accel = {
     .cpu_interrupt = kqemu_cpu_interrupt,
+    .exec_interrupt = kqemu_exec_interrupt,
 };
 
 int kqemu_init(CPUState *env)
-- 
1.5.0.6