[16/21] qga: emit VMDUMP_INFO event

diff --git a/qga/guest-agent-core.h b/qga/guest-agent-core.h
index 3e8a4acff2..1880b0f0ac 100644
--- a/qga/guest-agent-core.h
+++ b/qga/guest-agent-core.h
@@ -46,3 +46,5 @@  int ga_parse_whence(GuestFileWhence *whence, Error **errp);
 #ifndef _WIN32
 void reopen_fd_to_null(int fd);
 #endif
+
+void ga_client_added(void);
diff --git a/qga/channel-posix.c b/qga/channel-posix.c
index 3f34465159..5999df0684 100644
--- a/qga/channel-posix.c
+++ b/qga/channel-posix.c
@@ -3,6 +3,7 @@ 
 #include "qapi/error.h"
 #include "qemu/sockets.h"
 #include "qga/channel.h"
+#include "qga/guest-agent-core.h"
 
 #ifdef CONFIG_SOLARIS
 #include <stropts.h>
@@ -98,6 +99,13 @@  static gboolean ga_channel_client_event(GIOChannel *channel,
     return true;
 }
 
+static gboolean client_added_idle_cb(gpointer user_data)
+{
+    ga_client_added();
+
+    return false;
+}
+
 static int ga_channel_client_add(GAChannel *c, int fd)
 {
     GIOChannel *client_channel;
@@ -115,6 +123,9 @@  static int ga_channel_client_add(GAChannel *c, int fd)
     g_io_add_watch(client_channel, G_IO_IN | G_IO_HUP,
                    ga_channel_client_event, c);
     c->client_channel = client_channel;
+
+    g_idle_add(client_added_idle_cb, NULL);
+
     return 0;
 }
 
diff --git a/qga/main.c b/qga/main.c
index 8e852bd556..d2a874e67a 100644
--- a/qga/main.c
+++ b/qga/main.c
@@ -40,6 +40,7 @@ 
 #endif
 #endif
 #include "qapi/qmp-event.h"
+#include "qga-qapi-event.h"
 
 #ifndef _WIN32
 #define QGA_VIRTIO_PATH_DEFAULT "/dev/virtio-ports/org.qemu.guest_agent.0"
@@ -691,6 +692,18 @@  static gboolean channel_event_cb(GIOCondition condition, gpointer data)
     return true;
 }
 
+void ga_client_added(void)
+{
+#ifndef _WIN32
+    GAState *s = ga_state;
+
+    qapi_event_send_vmdump_info(s->vmdump.has_phys_base, s->vmdump.phys_base,
+                                s->vmdump.has_text, s->vmdump.text,
+                                s->vmdump.vmcoreinfo != NULL,
+                                s->vmdump.vmcoreinfo, NULL);
+#endif
+}
+
 static gboolean channel_init(GAState *s, const gchar *method, const gchar *path,
                              int listen_fd)
 {
diff --git a/Makefile b/Makefile
index 1c4c04f6f2..fc7e321041 100644
--- a/Makefile
+++ b/Makefile
@@ -404,6 +404,11 @@  $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
+qga/qapi-generated/qga-qapi-event.c qga/qapi-generated/qga-qapi-event.h :\
+$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-event.py \
+		$(gen-out-type)  -o qga/qapi-generated -p "qga-" $<, \
+		"GEN","$@")
 
 qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
                $(SRC_PATH)/qapi/block.json $(SRC_PATH)/qapi/block-core.json \
@@ -437,7 +442,7 @@  $(qapi-modules) $(SRC_PATH)/scripts/qapi-introspect.py $(qapi-py)
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
 
-QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h qga-qapi-visit.h qga-qmp-commands.h)
+QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h qga-qapi-visit.h qga-qmp-commands.h qga-qapi-event.h)
 $(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
 
 qemu-ga$(EXESUF): $(qga-obj-y) $(COMMON_LDADDS)
diff --git a/qga/Makefile.objs b/qga/Makefile.objs
index 1c5986c0bb..d22977f0e1 100644
--- a/qga/Makefile.objs
+++ b/qga/Makefile.objs
@@ -4,5 +4,6 @@  qga-obj-$(CONFIG_WIN32) += commands-win32.o channel-win32.o service-win32.o
 qga-obj-$(CONFIG_WIN32) += vss-win32.o
 qga-obj-y += qapi-generated/qga-qapi-types.o qapi-generated/qga-qapi-visit.o
 qga-obj-y += qapi-generated/qga-qmp-marshal.o
+qga-obj-y += qapi-generated/qga-qapi-event.o
 
 qga-vss-dll-obj-$(CONFIG_QGA_VSS) += vss-win32/
diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index d421609dcb..2a95af3399 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -48,6 +48,21 @@ 
   'returns': 'int' }
 
 ##
+# @VMDUMP_INFO:
+#
+# Provides VM dump information details to qemu.
+#
+# @phys-base: base address
+#
+# @text: "_text" location
+#
+# @vmcoreinfo: the content of /sys/kernel/vmcoreinfo on Linux
+#
+##
+{ 'event': 'VMDUMP_INFO',
+  'data': { '*phys-base': 'uint64', '*text': 'uint64', '*vmcoreinfo': 'str' } }
+
+##
 # @guest-sync:
 #
 # Echo back a unique integer value