microblaze: Add CPU interrupt wrapper logic.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/hw/microblaze_pic_cpu.c b/hw/microblaze_pic_cpu.c
new file mode 100644
index 0000000..7c59382
--- /dev/null
+++ b/hw/microblaze_pic_cpu.c
@@ -0,0 +1,50 @@
+/*
+ * QEMU MicroBlaze CPU interrupt wrapper logic.
+ *
+ * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw.h"
+#include "pc.h"
+
+#define D(x)
+
+void pic_info(Monitor *mon)
+{}
+void irq_info(Monitor *mon)
+{}
+
+static void microblaze_pic_cpu_handler(void *opaque, int irq, int level)
+{
+    CPUState *env = (CPUState *)opaque;
+    int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD;
+
+    if (level)
+        cpu_interrupt(env, type);
+    else
+        cpu_reset_interrupt(env, type);
+}
+
+qemu_irq *microblaze_pic_init_cpu(CPUState *env);
+qemu_irq *microblaze_pic_init_cpu(CPUState *env)
+{
+    return qemu_allocate_irqs(microblaze_pic_cpu_handler, env, 2);
+}