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[Qemu-devel] [PATCH v9 14/14] dump: add 'query-dump-guest-memory-capabil
From: |
qiaonuohan |
Subject: |
[Qemu-devel] [PATCH v9 14/14] dump: add 'query-dump-guest-memory-capability' command |
Date: |
Tue, 18 Feb 2014 14:11:38 +0800 |
'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>
---
dump.c | 33 +++++++++++++++++++++++++++++++++
qapi-schema.json | 24 ++++++++++++++++++++++++
qmp-commands.hx | 20 ++++++++++++++++++++
3 files changed, 77 insertions(+), 0 deletions(-)
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 905a8af..3eeb261 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -2783,6 +2783,30 @@
'*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 019dde6..f38007c 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,
--
1.7.1
- [Qemu-devel] [PATCH v9 00/14] Make 'dump-guest-memory' dump in kdump-compressed format, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 02/14] dump: add argument to write_elfxx_notes, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 13/14] Define the architecture for compressed dump format, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 05/14] dump: add API to write elf notes to buffer, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 11/14] dump: add API to write dump pages, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 08/14] dump: add API to write dump header, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 01/14] dump: const-qualify the buf of WriteCoreDumpFunction, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 09/14] dump: add API to write dump_bitmap, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 04/14] dump: add API to write vmcore, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 14/14] dump: add 'query-dump-guest-memory-capability' command,
qiaonuohan <=
- [Qemu-devel] [PATCH v9 03/14] dump: add API to write header of flatten format, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 12/14] dump: make kdump-compressed format available for 'dump-guest-memory', qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 07/14] dump: add members to DumpState and init some of them, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 06/14] dump: add support for lzo/snappy, qiaonuohan, 2014/02/18
- [Qemu-devel] [PATCH v9 10/14] dump: add APIs to operate DataCache, qiaonuohan, 2014/02/18
- Re: [Qemu-devel] [PATCH v9 00/14] Make 'dump-guest-memory' dump in kdump-compressed format, Luiz Capitulino, 2014/02/28