Add a base IPMI interface

Add the basic IPMI types and infrastructure to QEMU.  Low-level
interfaces and simulation interfaces will register with this; it's
kind of the go-between to tie them together.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2 files changed, 126 insertions, 0 deletions

diff --git a/hw/ipmi/Makefile.objs b/hw/ipmi/Makefile.objs
new file mode 100644
index 0000000..65bde11
--- /dev/null
+++ b/hw/ipmi/Makefile.objs
@@ -0,0 +1 @@
+common-obj-$(CONFIG_IPMI) += ipmi.o
diff --git a/hw/ipmi/ipmi.c b/hw/ipmi/ipmi.c
new file mode 100644
index 0000000..7d17469
--- /dev/null
+++ b/hw/ipmi/ipmi.c
@@ -0,0 +1,125 @@
+/*
+ * QEMU IPMI emulation
+ *
+ * Copyright (c) 2015 Corey Minyard, MontaVista Software, LLC
+ *
+ * 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/hw.h"
+#include "hw/ipmi/ipmi.h"
+#include "sysemu/sysemu.h"
+#include "qmp-commands.h"
+#include "qom/object_interfaces.h"
+#include "qapi/visitor.h"
+
+static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly)
+{
+    switch (op) {
+    case IPMI_RESET_CHASSIS:
+        if (checkonly) {
+            return 0;
+        }
+        qemu_system_reset_request();
+        return 0;
+
+    case IPMI_POWEROFF_CHASSIS:
+        if (checkonly) {
+            return 0;
+        }
+        qemu_system_powerdown_request();
+        return 0;
+
+    case IPMI_SEND_NMI:
+        if (checkonly) {
+            return 0;
+        }
+        qemu_mutex_lock_iothread();
+        qmp_inject_nmi(NULL);
+        qemu_mutex_unlock_iothread();
+        return 0;
+
+    case IPMI_POWERCYCLE_CHASSIS:
+    case IPMI_PULSE_DIAG_IRQ:
+    case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP:
+    case IPMI_POWERON_CHASSIS:
+    default:
+        return IPMI_CC_COMMAND_NOT_SUPPORTED;
+    }
+}
+
+static void ipmi_interface_class_init(ObjectClass *class, void *data)
+{
+    IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class);
+
+    ik->do_hw_op = ipmi_do_hw_op;
+}
+
+static TypeInfo ipmi_interface_type_info = {
+    .name = TYPE_IPMI_INTERFACE,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(IPMIInterfaceClass),
+    .class_init = ipmi_interface_class_init,
+};
+
+static void isa_ipmi_bmc_check(Object *obj, const char *name,
+                               Object *val, Error **errp)
+{
+    IPMIBmc *bmc = IPMI_BMC(val);
+
+    if (bmc->intf)
+        error_setg(errp, "BMC object is already in use");
+}
+
+void ipmi_bmc_find_and_link(Object *obj, Object **bmc)
+{
+    object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc,
+                             isa_ipmi_bmc_check,
+                             OBJ_PROP_LINK_UNREF_ON_RELEASE,
+                             &error_abort);
+}
+
+static Property ipmi_bmc_properties[] = {
+    DEFINE_PROP_UINT8("slave_addr",  IPMIBmc, slave_addr, 0x20),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void bmc_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->props = ipmi_bmc_properties;
+}
+
+static TypeInfo ipmi_bmc_type_info = {
+    .name = TYPE_IPMI_BMC,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(IPMIBmc),
+    .abstract = true,
+    .class_size = sizeof(IPMIBmcClass),
+    .class_init = bmc_class_init,
+};
+
+static void ipmi_register_types(void)
+{
+    type_register_static(&ipmi_interface_type_info);
+    type_register_static(&ipmi_bmc_type_info);
+}
+
+type_init(ipmi_register_types)