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From ae3fa9b069ad0e99fda95a34b18c68effe576f85 Mon Sep 17 00:00:00 2001
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From: Markus Armbruster <armbru@redhat.com>
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Date: Fri, 17 May 2019 06:51:13 +0200
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Subject: [PATCH 46/53] vl: Create block backends before setting machine
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properties
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Markus Armbruster <armbru@redhat.com>
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Message-id: <20190517065120.12028-25-armbru@redhat.com>
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Patchwork-id: 87985
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O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH v3 24/31] vl: Create block backends before setting machine properties
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Bugzilla: 1624009
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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qemu-system-FOO's main() acts on command line arguments in its own
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idiosyncratic order. There's not much method to its madness.
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Whenever we find a case where one kind of command line argument needs
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to refer to something created for another kind later, we rejigger the
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order.
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Block devices get created long after machine properties get processed.
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Therefore, block device machine properties can be created, but not
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set. No such properties exist. But the next commit will create some.
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Time to rejigger again: create block devices earlier.
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Message-Id: <20190308131445.17502-8-armbru@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit cda4aa9a5a08777cf13e164c0543bd4888b8adce)
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[Trivial conflict in vl.c due to lack of commit 2d5a3a8b02a]
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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vl.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/vl.c b/vl.c
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index e0e60fb..15e87a4 100644
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--- a/vl.c
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+++ b/vl.c
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@@ -4465,6 +4465,13 @@ int main(int argc, char **argv, char **envp)
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exit(0);
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}
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+ /*
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+ * Note: we need to create block backends before
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+ * machine_set_property(), so machine properties can refer to
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+ * them.
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+ */
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+ configure_blockdev(&bdo_queue, machine_class, snapshot);
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+
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machine_opts = qemu_get_machine_opts();
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if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
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NULL)) {
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@@ -4590,8 +4597,6 @@ int main(int argc, char **argv, char **envp)
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ram_mig_init();
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dirty_bitmap_mig_init();
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- configure_blockdev(&bdo_queue, machine_class, snapshot);
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-
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if (qemu_opts_foreach(qemu_find_opts("mon"),
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mon_init_func, NULL, NULL)) {
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exit(1);
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--
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1.8.3.1
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