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From 2d8e0d2cc979534be0149841e8bed07c0a4ba048 Mon Sep 17 00:00:00 2001
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Message-Id: <2d8e0d2cc979534be0149841e8bed07c0a4ba048@dist-git>
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From: Jiri Denemark <jdenemar@redhat.com>
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Date: Thu, 27 Apr 2017 10:38:41 +0200
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Subject: [PATCH] qemu: Ignore missing query-migrate-parameters
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Migration with old QEMU which does not support query-migrate-parameters
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would fail because the QMP command is called unconditionally since the
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introduction of TLS migration. Previously it was only called if the user
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explicitly requested a feature which uses QEMU migration parameters. And
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even then the situation was not ideal, instead of reporting an
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unsupported feature we'd just complain about missing QMP command.
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Trivially no migration parameters are supported when
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query-migrate-parameters QMP command is missing. There's no need to
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report an error if it is missing, the callers will report better error
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if needed.
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https://bugzilla.redhat.com/show_bug.cgi?id=1441934
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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(cherry picked from commit ac58c036065ff1d53bc05b796093287c27c71762)
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_monitor_json.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
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index 405f79fec..601aa3e74 100644
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--- a/src/qemu/qemu_monitor_json.c
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+++ b/src/qemu/qemu_monitor_json.c
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@@ -2666,6 +2666,11 @@ qemuMonitorJSONGetMigrationParams(qemuMonitorPtr mon,
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if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
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goto cleanup;
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+ if (qemuMonitorJSONHasError(reply, "CommandNotFound")) {
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+ ret = 0;
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+ goto cleanup;
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+ }
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+
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if (qemuMonitorJSONCheckError(cmd, reply) < 0)
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goto cleanup;
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--
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2.12.2
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