'query-dump-guest-memory-capability' is used to query whether option 'format' is available for 'dump-guest-memory' and the available format. The output of the command will be like:
-> { "execute": "query-dump-guest-memory-capability" } <- { "return": { "format-option": "optional", "capabilities": [ {"available": true, "format": "elf"}, {"available": true, "format": "kdump-zlib"}, {"available": true, "format": "kdump-lzo"}, {"available": true, "format": "kdump-snappy"} ] } Signed-off-by: Qiao Nuohan <qiaonuo...@cn.fujitsu.com> --- dump.c | 38 ++++++++++++++++++++++++++++++++++++++ qapi-schema.json | 13 +++++++++++++ qmp-commands.hx | 7 +++++++ 3 files changed, 58 insertions(+), 0 deletions(-) diff --git a/dump.c b/dump.c index b4e79ff..51fe23a 100644 --- a/dump.c +++ b/dump.c @@ -1757,3 +1757,41 @@ 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) +{ + int i; + DumpGuestMemoryCapabilityStatusList *item; + DumpGuestMemoryCapability *cap = + g_malloc0(sizeof(DumpGuestMemoryCapability)); + + cap->format_option = g_strdup_printf("optional"); + + for (i = 0; i < DUMP_GUEST_MEMORY_FORMAT_MAX; i++) { + if (cap->capabilities == NULL) { + item = g_malloc0(sizeof(DumpGuestMemoryCapabilityStatusList)); + cap->capabilities = item; + } else { + item->next = g_malloc0(sizeof(DumpGuestMemoryCapabilityStatusList)); + item = item->next; + } + + item->value = g_malloc0(sizeof(struct DumpGuestMemoryCapabilityStatus)); + item->value->format = i; + item->value->available = true; + + if (i == DUMP_GUEST_MEMORY_FORMAT_KDUMP_LZO) { +#ifndef CONFIG_LZO + item->value->available = false; +#endif + } + + if (i == DUMP_GUEST_MEMORY_FORMAT_KDUMP_SNAPPY) { +#ifndef CONFIG_SNAPPY + item->value->available = false; +#endif + } + } + + return cap; +} diff --git a/qapi-schema.json b/qapi-schema.json index 19b2b23..e545e0f 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -2740,6 +2740,19 @@ '*length': 'int', '*format': 'DumpGuestMemoryFormat' } } ## +# Since: 1.8 +## +{ 'type': 'DumpGuestMemoryCapabilityStatus', + 'data': { 'format': 'DumpGuestMemoryFormat', 'available': 'bool' } } + +{ 'type': 'DumpGuestMemoryCapability', + 'data': { + 'format-option': 'str', + 'capabilities': ['DumpGuestMemoryCapabilityStatus'] } } + +{ '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 3de9e7d..3379c75 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -828,6 +828,13 @@ Notes: EQMP { + .name = "query-dump-guest-memory-capability", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_dump_guest_memory_capability, + }, + + + { .name = "netdev_add", .args_type = "netdev:O", .mhandler.cmd_new = qmp_netdev_add, -- 1.7.1