diff options
| author | Aleksandr Nogikh <nogikh@google.com> | 2024-01-03 18:42:18 +0100 |
|---|---|---|
| committer | Aleksandr Nogikh <nogikh@google.com> | 2024-01-10 12:06:51 +0000 |
| commit | 04815ef18bca1d562a6e2cbabd098958be28886c (patch) | |
| tree | 569d2e8fdae3250c3a48674ad759b8651e9843fb /vm | |
| parent | b8b0c9f7d8f02415beab09246ddf66b021dfdc06 (diff) | |
vm/qemu: forward pprof port
Forward the default pprof port to enable direct connections from the host.
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/qemu/qemu.go | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/vm/qemu/qemu.go b/vm/qemu/qemu.go index bb616af47..9cb7f565b 100644 --- a/vm/qemu/qemu.go +++ b/vm/qemu/qemu.go @@ -425,6 +425,7 @@ func (inst *instance) Close() { func (inst *instance) boot() error { inst.port = vmimpl.UnusedTCPPort() inst.monport = vmimpl.UnusedTCPPort() + instanceName := fmt.Sprintf("VM-%v", inst.index) args := []string{ "-m", strconv.Itoa(inst.cfg.Mem), "-smp", strconv.Itoa(inst.cfg.CPU), @@ -433,16 +434,22 @@ func (inst *instance) boot() error { "-display", "none", "-serial", "stdio", "-no-reboot", - "-name", fmt.Sprintf("VM-%v", inst.index), + "-name", instanceName, } if inst.archConfig.RngDev != "" { args = append(args, "-device", inst.archConfig.RngDev) } templateDir := filepath.Join(inst.workdir, "template") args = append(args, splitArgs(inst.cfg.QemuArgs, templateDir, inst.index)...) + + forwardedPort := vmimpl.UnusedTCPPort() + pprofExt := fmt.Sprintf(",hostfwd=tcp::%v-:%v", forwardedPort, vmimpl.PprofPort) + log.Logf(3, "instance %s's pprof is available at 127.0.0.1:%v", instanceName, forwardedPort) + args = append(args, "-device", inst.cfg.NetDev+",netdev=net0", - "-netdev", fmt.Sprintf("user,id=net0,restrict=on,hostfwd=tcp:127.0.0.1:%v-:22", inst.port)) + "-netdev", fmt.Sprintf("user,id=net0,restrict=on,hostfwd=tcp:127.0.0.1:%v-:22%s", inst.port, pprofExt), + ) if inst.image == "9p" { args = append(args, "-fsdev", "local,id=fsdev0,path=/,security_model=none,readonly", |