From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47973) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WDQHy-0003lW-Mf for qemu-devel@nongnu.org; Tue, 11 Feb 2014 22:15:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WDQHu-0004F3-3I for qemu-devel@nongnu.org; Tue, 11 Feb 2014 22:15:06 -0500 Received: from [222.73.24.84] (port=25501 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WDQHt-0004Br-Kx for qemu-devel@nongnu.org; Tue, 11 Feb 2014 22:15:02 -0500 Message-ID: <52FAE6E2.8050703@cn.fujitsu.com> Date: Wed, 12 Feb 2014 11:13:38 +0800 From: Qiao Nuohan MIME-Version: 1.0 References: <1390890126-17377-1-git-send-email-qiaonuohan@cn.fujitsu.com> <1390890126-17377-14-git-send-email-qiaonuohan@cn.fujitsu.com> <20140210141048.796e9c91@redhat.com> <52F94C84.20105@redhat.com> <52F95C46.3030701@redhat.com> <52F9611D.7000808@redhat.com> <52F9620D.5040204@redhat.com> <20140210214721.2df300e4@redhat.com> <52F9CF10.50806@redhat.com> <52FA24F1.20408@redhat.com> In-Reply-To: <52FA24F1.20408@redhat.com> Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=UTF-8; format=flowed Subject: [Qemu-devel] [PATCH v9 13/13] dump: add 'query-dump-guest-memory-capability' command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eric Blake , Paolo Bonzini , Luiz Capitulino , Laszlo Ersek Cc: stefanha@gmail.com, kumagai-atsushi@mxc.nes.nec.co.jp, qemu-devel@nongnu.org, afaerber@suse.de, anderson@redhat.com 'query-dump-guest-memory-capability' is used to query the available formats of '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 --- dump.c | 33 +++++++++++++++++++++++++++++++++ qapi-schema.json | 9 +++++++++ qmp-commands.hx | 23 +++++++++++++++++++++++ 3 files changed, 65 insertions(+), 0 deletions(-) diff --git a/dump.c b/dump.c index 2ebbb23..3a8d55e 100644 --- a/dump.c +++ b/dump.c @@ -1788,3 +1788,36 @@ 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 7f62007..5d13bb3 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -2783,6 +2783,15 @@ '*length': 'int', '*format': 'DumpGuestMemoryFormat' } } ## +# Since: 2.0 +## +{ 'type': 'DumpGuestMemoryCapability', + 'data': { + 'formats': ['DumpGuestMemoryFormat'] } } + +{ '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..1f9ff69 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -829,6 +829,29 @@ 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 format of 'dump-guest-memory' + +Example: + +-> { "execute": "query-dump-guest-memory-capability" } +<- { "return": { "formats": + ["elf", "kdump-zlib", "kdump-lzo", "kdump-snappy"] } + +Note: This is a light-weight introspection to let management know the available + formats of dump-guest-memory. + +EQMP + + { .name = "netdev_add", .args_type = "netdev:O", .mhandler.cmd_new = qmp_netdev_add, -- 1.7.1