Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20140520' into staging

some s390 patches:

- Enable irqfds on s390 via the new adapter interrupt routing type.
  As a prereq, fix the kvm enable_cap helpers for some compilers and
  split the s390 flic into kvm and non-kvm parts.
- Enable software and hardware debugging support on s390. This needs a
  kernel headers update.

# gpg: Signature made Tue 20 May 2014 12:30:54 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found

* remotes/cohuck/tags/s390x-20140520:
  s390x/kvm: hw debugging support via guest PER facility
  s390x/kvm: software breakpoint support
  s390x: remove duplicate definitions of DIAG 501
  linux-headers: update
  s390x/virtio-ccw: wire up irq routing and irqfds
  s390x/virtio-ccw: reference-counted indicators
  s390x: add I/O adapter registration
  s390x: split flic into kvm and non-kvm parts
  kvm: Fix enable_cap helpers on older gcc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 82 insertions, 13 deletions

diff --git a/include/hw/s390x/adapter.h b/include/hw/s390x/adapter.h
new file mode 100644
index 0000000000..7f1703508c
--- /dev/null
+++ b/include/hw/s390x/adapter.h
@@ -0,0 +1,23 @@
+/*
+ * s390 adapter definitions
+ *
+ * Copyright 2013,2014 IBM Corp.
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *
+ * 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.
+ */
+
+#ifndef S390X_ADAPTER_H
+#define S390X_ADAPTER_H
+
+struct AdapterInfo {
+    uint64_t ind_addr;
+    uint64_t summary_addr;
+    uint64_t ind_offset;
+    uint32_t summary_offset;
+    uint32_t adapter_id;
+};
+
+#endif
diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h
index 497b219e30..489d73b9b3 100644
--- a/include/hw/s390x/s390_flic.h
+++ b/include/hw/s390x/s390_flic.h
@@ -1,33 +1,76 @@
 /*
- * QEMU S390x KVM floating interrupt controller (flic)
+ * QEMU S390x floating interrupt controller (flic)
  *
  * Copyright 2014 IBM Corp.
  * Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com>
+ *            Cornelia Huck <cornelia.huck@de.ibm.com>
  *
  * 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.
  */
 
-#ifndef __KVM_S390_FLIC_H
-#define __KVM_S390_FLIC_H
+#ifndef __HW_S390_FLIC_H
+#define __HW_S390_FLIC_H
 
 #include "hw/sysbus.h"
+#include "hw/s390x/adapter.h"
+#include "hw/virtio/virtio.h"
 
-#define TYPE_KVM_S390_FLIC "s390-flic"
+typedef struct AdapterRoutes {
+    AdapterInfo adapter;
+    int num_routes;
+    int gsi[VIRTIO_PCI_QUEUE_MAX];
+} AdapterRoutes;
+
+#define TYPE_S390_FLIC_COMMON "s390-flic"
+#define S390_FLIC_COMMON(obj) \
+    OBJECT_CHECK(S390FLICState, (obj), TYPE_S390_FLIC_COMMON)
+
+typedef struct S390FLICState {
+    SysBusDevice parent_obj;
+
+} S390FLICState;
+
+#define S390_FLIC_COMMON_CLASS(klass) \
+    OBJECT_CLASS_CHECK(S390FLICStateClass, (klass), TYPE_S390_FLIC_COMMON)
+#define S390_FLIC_COMMON_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(S390FLICStateClass, (obj), TYPE_S390_FLIC_COMMON)
+
+typedef struct S390FLICStateClass {
+    DeviceClass parent_class;
+
+    int (*register_io_adapter)(S390FLICState *fs, uint32_t id, uint8_t isc,
+                               bool swap, bool maskable);
+    int (*io_adapter_map)(S390FLICState *fs, uint32_t id, uint64_t map_addr,
+                          bool do_map);
+    int (*add_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
+    void (*release_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
+} S390FLICStateClass;
+
+#define TYPE_KVM_S390_FLIC "s390-flic-kvm"
 #define KVM_S390_FLIC(obj) \
     OBJECT_CHECK(KVMS390FLICState, (obj), TYPE_KVM_S390_FLIC)
 
-typedef struct KVMS390FLICState {
-    SysBusDevice parent_obj;
+#define TYPE_QEMU_S390_FLIC "s390-flic-qemu"
+#define QEMU_S390_FLIC(obj) \
+    OBJECT_CHECK(QEMUS390FLICState, (obj), TYPE_QEMU_S390_FLIC)
 
-    uint32_t fd;
-} KVMS390FLICState;
+typedef struct QEMUS390FLICState {
+    S390FLICState parent_obj;
+} QEMUS390FLICState;
 
-#ifdef CONFIG_KVM
 void s390_flic_init(void);
+
+S390FLICState *s390_get_flic(void);
+
+#ifdef CONFIG_KVM
+DeviceState *s390_flic_kvm_create(void);
 #else
-static inline void s390_flic_init(void) { }
+static inline DeviceState *s390_flic_kvm_create(void)
+{
+    return NULL;
+}
 #endif
 
-#endif /* __KVM_S390_FLIC_H */
+#endif /* __HW_S390_FLIC_H */
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 86bab123a4..5f20b0e263 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -74,5 +74,6 @@ typedef struct SHPCDevice SHPCDevice;
 typedef struct FWCfgState FWCfgState;
 typedef struct PcGuestInfo PcGuestInfo;
 typedef struct Range Range;
+typedef struct AdapterInfo AdapterInfo;
 
 #endif /* QEMU_TYPEDEFS_H */
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index e7ad9d159a..e79e92c50e 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -300,7 +300,7 @@ int kvm_check_extension(KVMState *s, unsigned int extension);
         };                                                           \
         uint64_t args_tmp[] = { __VA_ARGS__ };                       \
         int i;                                                       \
-        for (i = 0; i < ARRAY_SIZE(args_tmp) &&                      \
+        for (i = 0; i < (int)ARRAY_SIZE(args_tmp) &&                 \
                      i < ARRAY_SIZE(cap.args); i++) {                \
             cap.args[i] = args_tmp[i];                               \
         }                                                            \
@@ -315,7 +315,7 @@ int kvm_check_extension(KVMState *s, unsigned int extension);
         };                                                           \
         uint64_t args_tmp[] = { __VA_ARGS__ };                       \
         int i;                                                       \
-        for (i = 0; i < ARRAY_SIZE(args_tmp) &&                      \
+        for (i = 0; i < (int)ARRAY_SIZE(args_tmp) &&                 \
                      i < ARRAY_SIZE(cap.args); i++) {                \
             cap.args[i] = args_tmp[i];                               \
         }                                                            \
@@ -363,6 +363,8 @@ int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg);
 void kvm_irqchip_release_virq(KVMState *s, int virq);
 
+int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
+
 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
                                    EventNotifier *rn, int virq);
 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq);