qemu/0101-configure-Add-enable-migration-from-qemu-kvm.patch

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From c6c153bfd7f9da48eb541d78bf09bc03bcc337e5 Mon Sep 17 00:00:00 2001
From: Cole Robinson <crobinso@redhat.com>
Date: Tue, 19 Feb 2013 14:39:05 -0500
Subject: [PATCH] configure: Add --enable-migration-from-qemu-kvm
This switch will turn on all the migration compat bits needed to
perform migration from qemu-kvm to qemu. It's just a stub for now.
This compat will break incoming migration from qemu < 1.3, but for
distros where qemu-kvm was the only shipped package for years it's
not a big loss (and I don't know any way to avoid it).
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
configure | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/configure b/configure
index e7468a9..719e348 100755
--- a/configure
+++ b/configure
@@ -170,6 +170,7 @@ xfs=""
vhost_net="no"
kvm="no"
+migrate_from_kvm="no"
gprof="no"
debug_tcg="no"
debug="no"
@@ -759,6 +760,8 @@ for opt do
;;
--enable-kvm) kvm="yes"
;;
+ --enable-migration-from-qemu-kvm) migrate_from_kvm="yes"
+ ;;
--disable-tcg-interpreter) tcg_interpreter="no"
;;
--enable-tcg-interpreter) tcg_interpreter="yes"
@@ -1087,6 +1090,9 @@ echo " --enable-bluez enable bluez stack connectivity"
echo " --disable-slirp disable SLIRP userspace network connectivity"
echo " --disable-kvm disable KVM acceleration support"
echo " --enable-kvm enable KVM acceleration support"
+echo " --enable-migration-from-qemu-kvm Allow migration from qemu-kvm."
+echo " This will break migration from "
+echo " qemu < 1.3 in most cases"
echo " --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)"
echo " --disable-nptl disable usermode NPTL support"
echo " --enable-nptl enable usermode NPTL support"
@@ -3324,6 +3330,7 @@ echo "Linux AIO support $linux_aio"
echo "ATTR/XATTR support $attr"
echo "Install blobs $blobs"
echo "KVM support $kvm"
+echo "Migrate from qemu-kvm $migrate_from_kvm"
echo "TCG interpreter $tcg_interpreter"
echo "fdt support $fdt"
echo "preadv support $preadv"
@@ -3612,6 +3619,9 @@ fi
if test "$signalfd" = "yes" ; then
echo "CONFIG_SIGNALFD=y" >> $config_host_mak
fi
+if test "$migrate_from_kvm" = "yes"; then
+ echo "CONFIG_MIGRATE_FROM_QEMU_KVM=y" >> $config_host_mak
+fi
if test "$tcg_interpreter" = "yes" ; then
echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
fi