[libvirt] [PATCH 3/8] qemu: agent: implement qemuAgentGetMemblocks
implement function qemuAgentGetMemblocks().
behaviour example:
input: '{"execute":"guest-get-memory-blocks"}'
output:
{
"return": [
{
"can-offline": false,
"online": true,
"phys-index": 0
},
{
"can-offline": false,
"online": true,
"phys-index": 1
},
..........
]
}
please refer to
http://git.qemu.org/?p=qemu.git;a=log;h=0dd38a03f5e1498aabf7d053a9fab792a...
for more information.
Signed-off-by: Zhang Bo <oscar.zhangbo(a)huawei.com>
Signed-off-by: Li Bin <binlibin.li(a)huawei.com>
---
src/qemu/qemu_agent.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_agent.h | 1 +
2 files changed, 74 insertions(+)
diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
index 043695b..95daf7a 100644
--- a/src/qemu/qemu_agent.c
+++ b/src/qemu/qemu_agent.c
@@ -1654,6 +1654,79 @@ qemuAgentUpdateCPUInfo(unsigned int nvcpus,
return 0;
}
+int
+qemuAgentGetMemblocks(qemuAgentPtr mon,
+ qemuAgentMemblockInfoPtr *info)
+{
+ int ret = -1;
+ size_t i;
+ virJSONValuePtr cmd = NULL;
+ virJSONValuePtr reply = NULL;
+ virJSONValuePtr data = NULL;
+ int ndata;
+
+ if (!(cmd = qemuAgentMakeCommand("guest-get-memory-blocks", NULL)))
+ return -1;
+
+ if (qemuAgentCommand(mon, cmd, &reply, true,
+ VIR_DOMAIN_QEMU_AGENT_COMMAND_BLOCK) < 0)
+ goto cleanup;
+
+ if (!(data = virJSONValueObjectGet(reply, "return"))) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("guest-get-memory-blocks reply was missing return
data"));
+ goto cleanup;
+ }
+
+ if (data->type != VIR_JSON_TYPE_ARRAY) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("guest-get-memory-blocks return information was not an
array"));
+ goto cleanup;
+ }
+
+ ndata = virJSONValueArraySize(data);
+
+ if (VIR_ALLOC_N(*info, ndata) < 0)
+ goto cleanup;
+
+ for (i = 0; i < ndata; i++) {
+ virJSONValuePtr entry = virJSONValueArrayGet(data, i);
+ qemuAgentMemblockInfoPtr in = *info + i;
+
+ if (!entry) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("array element missing in guest-get-memory-blocks
return "
+ "value"));
+ goto cleanup;
+ }
+
+ if (virJSONValueObjectGetNumberUint(entry, "phys-index",
&in->id) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("'phys-index' missing in reply of
guest-get-memory-blocks"));
+ goto cleanup;
+ }
+
+ if (virJSONValueObjectGetBoolean(entry, "online", &in->online)
< 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("'online' missing in reply of
guest-get-memory-blocks"));
+ goto cleanup;
+ }
+
+ if (virJSONValueObjectGetBoolean(entry, "can-offline",
+ &in->offlinable) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("'can-offline' missing in reply of
guest-get-memory-blocks"));
+ goto cleanup;
+ }
+ }
+
+ ret = ndata;
+
+ cleanup:
+ virJSONValueFree(cmd);
+ virJSONValueFree(reply);
+ return ret;
+}
int
qemuAgentGetTime(qemuAgentPtr mon,
diff --git a/src/qemu/qemu_agent.h b/src/qemu/qemu_agent.h
index 425ee87..61ba038 100644
--- a/src/qemu/qemu_agent.h
+++ b/src/qemu/qemu_agent.h
@@ -111,6 +111,7 @@ struct _qemuAgentMemblockInfo {
bool offlinable; /* true if the MEMORY BLOCK can be offlined */
};
+int qemuAgentGetMemblocks(qemuAgentPtr mon, qemuAgentMemblockInfoPtr *info);
int qemuAgentGetTime(qemuAgentPtr mon,
long long *seconds,
--
1.7.12.4