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qmp: add ExecutePCIVhostUserDevAdd API

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Caller can hotplug vhost-user device via qmp.
The Qemu vhost-user device, like vhost-user-blk-pci and
vhost-user-scsi-pci can be hotplugged by qmp API:
ExecuteCharDevUnixSocketAdd() together with
ExecutePCIVhostUserDevAdd()

Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
This commit is contained in:
Liu Xiaodong
2020-01-14 00:13:26 -05:00
parent 13aeba09d5
commit e04be2cc38
2 changed files with 41 additions and 0 deletions
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20
qemu/qmp_test.go
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@@ -1329,6 +1329,26 @@ func TestExecutePCIVSockAdd(t *testing.T) {
<-disconnectedCh
}
// Checks vhost-user-pci hotplug
func TestExecutePCIVhostUserDevAdd(t *testing.T) {
connectedCh := make(chan *QMPVersion)
disconnectedCh := make(chan struct{})
buf := newQMPTestCommandBuffer(t)
buf.AddCommand("device_add", nil, "return", nil)
cfg := QMPConfig{Logger: qmpTestLogger{}}
q := startQMPLoop(buf, cfg, connectedCh, disconnectedCh)
checkVersion(t, connectedCh)
driver := "vhost-user-blk-pci"
devID := "vhost-user-blk0"
chardevID := "vhost-user-blk-char0"
err := q.ExecutePCIVhostUserDevAdd(context.Background(), driver, devID, chardevID, "1", "1")
if err != nil {
t.Fatalf("Unexpected error %v", err)
}
q.Shutdown()
<-disconnectedCh
}
// Checks getfd
func TestExecuteGetFdD(t *testing.T) {
connectedCh := make(chan *QMPVersion)