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cryptodev: Support query-stats QMP command

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Now we can use "query-stats" QMP command to query statistics of
crypto devices. (Originally this was designed to show statistics
by '{"execute": "query-cryptodev"}'. Daniel Berrangé suggested that
querying configuration info by "query-cryptodev", and querying
runtime performance info by "query-stats". This makes sense!)

Example:
~# virsh qemu-monitor-command vm '{"execute": "query-stats", \
   "arguments": {"target": "cryptodev"} }' | jq
{
  "return": [
    {
      "provider": "cryptodev",
      "stats": [
        {
          "name": "asym-verify-bytes",
          "value": 7680
        },
        ...
        {
          "name": "asym-decrypt-ops",
          "value": 32
        },
        {
          "name": "asym-encrypt-ops",
          "value": 48
        }
      ],
      "qom-path": "/objects/cryptodev0" # support asym only
    },
    {
      "provider": "cryptodev",
      "stats": [
        {
          "name": "asym-verify-bytes",
          "value": 0
        },
        ...
        {
          "name": "sym-decrypt-bytes",
          "value": 5376
        },
        ...
      ],
      "qom-path": "/objects/cryptodev1" # support asym/sym
    }
  ],
  "id": "libvirt-422"
}

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20230301105847.253084-12-pizhenwei@bytedance.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
zhenwei pi 2023-03-01 18:58:46 +08:00 • committed by Michael S. Tsirkin
parent 2580b452ff
commit f2b901098e
4 changed files with 170 additions and 2 deletions
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10
qapi/stats.json
View file

@ -50,10 +50,14 @@
#
# Enumeration of statistics providers.
#
# @kvm: since 7.1
#
# @cryptodev: since 8.0
#
# Since: 7.1
##
{ 'enum': 'StatsProvider',
'data': [ 'kvm' ] }
'data': [ 'kvm', 'cryptodev' ] }
##
# @StatsTarget:
@ -65,10 +69,12 @@
#
# @vcpu: statistics that apply to a single virtual CPU.
#
# @cryptodev: statistics that apply to a crypto device. since 8.0
#
# Since: 7.1
##
{ 'enum': 'StatsTarget',
'data': [ 'vm', 'vcpu' ] }
'data': [ 'vm', 'vcpu', 'cryptodev' ] }
##
# @StatsRequest: