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[Qemu-devel] [PULL 16/32] dump: add 'query-dump-guest-memory-capability'
From: |
Luiz Capitulino |
Subject: |
[Qemu-devel] [PULL 16/32] dump: add 'query-dump-guest-memory-capability' command |
Date: |
Mon, 3 Mar 2014 12:12:07 -0500 |
From: qiaonuohan <address@hidden>
'query-dump-guest-memory-capability' is used to query the available formats for
'dump-guest-memory'. The output of the command will be like:
-> { "execute": "query-dump-guest-memory-capability" }
<- { "return": { "formats":
["elf", "kdump-zlib", "kdump-lzo", "kdump-snappy"] }
Signed-off-by: Qiao Nuohan <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Signed-off-by: Luiz Capitulino <address@hidden>
---
dump.c | 33 +++++++++++++++++++++++++++++++++
qapi-schema.json | 24 ++++++++++++++++++++++++
qmp-commands.hx | 20 ++++++++++++++++++++
3 files changed, 77 insertions(+)
diff --git a/dump.c b/dump.c
index 2c81318..14b3d1d 100644
--- a/dump.c
+++ b/dump.c
@@ -1791,3 +1791,36 @@ void qmp_dump_guest_memory(bool paging, const char
*file, bool has_begin,
g_free(s);
}
+
+DumpGuestMemoryCapability *qmp_query_dump_guest_memory_capability(Error **errp)
+{
+ DumpGuestMemoryFormatList *item;
+ DumpGuestMemoryCapability *cap =
+ g_malloc0(sizeof(DumpGuestMemoryCapability));
+
+ /* elf is always available */
+ item = g_malloc0(sizeof(DumpGuestMemoryFormatList));
+ cap->formats = item;
+ item->value = DUMP_GUEST_MEMORY_FORMAT_ELF;
+
+ /* kdump-zlib is always available */
+ item->next = g_malloc0(sizeof(DumpGuestMemoryFormatList));
+ item = item->next;
+ item->value = DUMP_GUEST_MEMORY_FORMAT_KDUMP_ZLIB;
+
+ /* add new item if kdump-lzo is available */
+#ifdef CONFIG_LZO
+ item->next = g_malloc0(sizeof(DumpGuestMemoryFormatList));
+ item = item->next;
+ item->value = DUMP_GUEST_MEMORY_FORMAT_KDUMP_LZO;
+#endif
+
+ /* add new item if kdump-snappy is available */
+#ifdef CONFIG_SNAPPY
+ item->next = g_malloc0(sizeof(DumpGuestMemoryFormatList));
+ item = item->next;
+ item->value = DUMP_GUEST_MEMORY_FORMAT_KDUMP_SNAPPY;
+#endif
+
+ return cap;
+}
diff --git a/qapi-schema.json b/qapi-schema.json
index 0d04ace..1a5f93e 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -2862,6 +2862,30 @@
'*length': 'int', '*format': 'DumpGuestMemoryFormat' } }
##
+# @DumpGuestMemoryCapability:
+#
+# A list of the available formats for dump-guest-memory
+#
+# Since: 2.0
+##
+{ 'type': 'DumpGuestMemoryCapability',
+ 'data': {
+ 'formats': ['DumpGuestMemoryFormat'] } }
+
+##
+# @query-dump-guest-memory-capability:
+#
+# Returns the available formats for dump-guest-memory
+#
+# Returns: A @DumpGuestMemoryCapability object listing available formats for
+# dump-guest-memory
+#
+# Since: 2.0
+##
+{ 'command': 'query-dump-guest-memory-capability',
+ 'returns': 'DumpGuestMemoryCapability' }
+
+##
# @netdev_add:
#
# Add a network backend.
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 8da11ac..d982cd6 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -829,6 +829,26 @@ Notes:
EQMP
{
+ .name = "query-dump-guest-memory-capability",
+ .args_type = "",
+ .mhandler.cmd_new = qmp_marshal_input_query_dump_guest_memory_capability,
+ },
+
+SQMP
+query-dump-guest-memory-capability
+----------
+
+Show available formats for 'dump-guest-memory'
+
+Example:
+
+-> { "execute": "query-dump-guest-memory-capability" }
+<- { "return": { "formats":
+ ["elf", "kdump-zlib", "kdump-lzo", "kdump-snappy"] }
+
+EQMP
+
+ {
.name = "netdev_add",
.args_type = "netdev:O",
.mhandler.cmd_new = qmp_netdev_add,
--
1.8.1.4
- [Qemu-devel] [PULL 05/32] dump: add API to write header of flatten format, (continued)
- [Qemu-devel] [PULL 05/32] dump: add API to write header of flatten format, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 11/32] dump: add API to write dump_bitmap, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 06/32] dump: add API to write vmcore, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 12/32] dump: add APIs to operate DataCache, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 10/32] dump: add API to write dump header, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 03/32] dump: const-qualify the buf of WriteCoreDumpFunction, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 14/32] dump: make kdump-compressed format available for 'dump-guest-memory', Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 13/32] dump: add API to write dump pages, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 15/32] Define the architecture for compressed dump format, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 16/32] dump: add 'query-dump-guest-memory-capability' command,
Luiz Capitulino <=
- [Qemu-devel] [PULL 17/32] qmp: Check for returned data from __json_read in get_events, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 19/32] monitor: Remove left-over code in do_info_profile., Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 18/32] qerror: Improve QERR_DEVICE_NOT_ACTIVE message, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 22/32] tests/qapi-schema: Cover simple argument types, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 20/32] tests/qapi-schema: Actually check successful QMP command response, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 21/32] tests/qapi-schema: Cover optional command arguments, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 24/32] tests/qapi-schema: Cover complex types with base, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 23/32] tests/qapi-schema: Cover anonymous union types, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 26/32] tests/qapi-schema: Cover flat union types, Luiz Capitulino, 2014/03/03
- [Qemu-devel] [PULL 25/32] tests/qapi-schema: Cover union types with base, Luiz Capitulino, 2014/03/03