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qemu: Add prefix for vsock vhostfd
Alter qemuBuildVsockDevStr to allow passing a prefix for the vhostfd file descriptor name. Domain startup uses the numeric value of fd without a prefix, but hotplug will need to use a prefix because passed file descriptor names cannot start with a number. https://bugzilla.redhat.com/show_bug.cgi?id=1291851 Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: John Ferlan <jferlan@redhat.com>
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@ -9915,7 +9915,8 @@ qemuBuildSeccompSandboxCommandLine(virCommandPtr cmd,
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static char *
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qemuBuildVsockDevStr(virDomainDefPtr def,
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virDomainVsockDefPtr vsock,
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virQEMUCapsPtr qemuCaps)
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virQEMUCapsPtr qemuCaps,
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const char *fdprefix)
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{
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qemuDomainVsockPrivatePtr priv = (qemuDomainVsockPrivatePtr)vsock->privateData;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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@ -9925,7 +9926,7 @@ qemuBuildVsockDevStr(virDomainDefPtr def,
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virBufferAsprintf(&buf, "%s", device);
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virBufferAsprintf(&buf, ",id=%s", vsock->info.alias);
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virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid);
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virBufferAsprintf(&buf, ",vhostfd=%u", priv->vhostfd);
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virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd);
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if (qemuBuildDeviceAddressStr(&buf, def, &vsock->info, qemuCaps) < 0)
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goto cleanup;
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@ -9950,7 +9951,7 @@ qemuBuildVsockCommandLine(virCommandPtr cmd,
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char *devstr = NULL;
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int ret = -1;
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if (!(devstr = qemuBuildVsockDevStr(def, vsock, qemuCaps)))
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if (!(devstr = qemuBuildVsockDevStr(def, vsock, qemuCaps, "")))
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goto cleanup;
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virCommandPassFD(cmd, priv->vhostfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
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