[Qemu-devel] [PATCH 4/9] sparc64: check for pending irq when pil, pstate or softint is changed

["Igor V. Kovalenko" <igor.v.kovalenko@gmail.com>]

From: Igor V. Kovalenko <igor.v.kovalenko@gmail.com>

Signed-off-by: Igor V. Kovalenko <igor.v.kovalenko@gmail.com>
---
 target-sparc/op_helper.c |   39 ++++++++++++++++++++++++++++++++++++---
 1 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index a7da0e4..b1978cb 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -3301,6 +3301,12 @@ static inline void change_pstate(uint64_t new_pstate)
 void helper_wrpstate(target_ulong new_state)
 {
     change_pstate(new_state & 0xf3f);
+
+#if !defined(CONFIG_USER_ONLY)
+    if (env->pstate & PS_IE) {
+        cpu_check_irqs(env);
+    }
+#endif
 }
 
 void helper_wrpil(target_ulong new_pil)
@@ -3328,6 +3334,14 @@ void helper_done(void)
     change_pstate((tsptr->tstate >> 8) & 0xf3f);
     PUT_CWP64(env, tsptr->tstate & 0xff);
     env->tl--;
+
+    DPRINTF_PSTATE("... helper_done tl=%d\n", env->tl);
+
+#if !defined(CONFIG_USER_ONLY)
+    if (env->pstate & PS_IE) {
+        cpu_check_irqs(env);
+    }
+#endif
 }
 
 void helper_retry(void)
@@ -3341,21 +3355,40 @@ void helper_retry(void)
     change_pstate((tsptr->tstate >> 8) & 0xf3f);
     PUT_CWP64(env, tsptr->tstate & 0xff);
     env->tl--;
+
+    DPRINTF_PSTATE("... helper_retry tl=%d\n", env->tl);
+
+#if !defined(CONFIG_USER_ONLY)
+    if (env->pstate & PS_IE) {
+        cpu_check_irqs(env);
+    }
+#endif
+}
+
+static void do_modify_softint(const char* operation, uint32_t value)
+{
+    if (env->softint != value) {
+        env->softint = value;
+        DPRINTF_PSTATE(": %s new %08X\n", operation, env->softint);
+#if !defined(CONFIG_USER_ONLY)
+        cpu_check_irqs(env);
+#endif
+    }
 }
 
 void helper_set_softint(uint64_t value)
 {
-    env->softint |= (uint32_t)value;
+    do_modify_softint("helper_set_softint" , env->softint | (uint32_t)value);
 }
 
 void helper_clear_softint(uint64_t value)
 {
-    env->softint &= (uint32_t)~value;
+    do_modify_softint("helper_clear_softint" , env->softint & (uint32_t)~value);
 }
 
 void helper_write_softint(uint64_t value)
 {
-    env->softint = (uint32_t)value;
+    do_modify_softint("helper_write_softint", (uint32_t)value);
 }
 #endif