Add qemu 2.4.0

[kvmfornfv.git] / qemu / target-s390x / interrupt.c

diff --git a/qemu/target-s390x/interrupt.c b/qemu/target-s390x/interrupt.c
new file mode 100644 (file)
index 0000000..1404d0a
--- /dev/null
+++ b/qemu/target-s390x/interrupt.c
@@ -0,0 +1,66 @@
+/*
+ * QEMU S/390 Interrupt support
+ *
+ * Copyright IBM Corp. 2012, 2014
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at your
+ * option) any later version.  See the COPYING file in the top-level directory.
+ */
+
+#include "cpu.h"
+#include "sysemu/kvm.h"
+
+/*
+ * All of the following interrupts are floating, i.e. not per-vcpu.
+ * We just need a dummy cpustate in order to be able to inject in the
+ * non-kvm case.
+ */
+#if !defined(CONFIG_USER_ONLY)
+void s390_sclp_extint(uint32_t parm)
+{
+    if (kvm_enabled()) {
+        kvm_s390_service_interrupt(parm);
+    } else {
+        S390CPU *dummy_cpu = s390_cpu_addr2state(0);
+
+        cpu_inject_ext(dummy_cpu, EXT_SERVICE, parm, 0);
+    }
+}
+
+void s390_virtio_irq(int config_change, uint64_t token)
+{
+    if (kvm_enabled()) {
+        kvm_s390_virtio_irq(config_change, token);
+    } else {
+        S390CPU *dummy_cpu = s390_cpu_addr2state(0);
+
+        cpu_inject_ext(dummy_cpu, EXT_VIRTIO, config_change, token);
+    }
+}
+
+void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
+                       uint32_t io_int_parm, uint32_t io_int_word)
+{
+    if (kvm_enabled()) {
+        kvm_s390_io_interrupt(subchannel_id, subchannel_nr, io_int_parm,
+                              io_int_word);
+    } else {
+        S390CPU *dummy_cpu = s390_cpu_addr2state(0);
+
+        cpu_inject_io(dummy_cpu, subchannel_id, subchannel_nr, io_int_parm,
+                      io_int_word);
+    }
+}
+
+void s390_crw_mchk(void)
+{
+    if (kvm_enabled()) {
+        kvm_s390_crw_mchk();
+    } else {
+        S390CPU *dummy_cpu = s390_cpu_addr2state(0);
+
+        cpu_inject_crw_mchk(dummy_cpu);
+    }
+}
+
+#endif