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From 4c0c92f91370c1a3279e1488aaf4c979a0ccb1f0 Mon Sep 17 00:00:00 2001
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From: Cole Robinson <crobinso@redhat.com>
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Date: Tue, 19 Feb 2013 14:39:05 -0500
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Subject: [PATCH] configure: Add --enable-migration-from-qemu-kvm
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This switch will turn on all the migration compat bits needed to
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perform migration from qemu-kvm to qemu. It's just a stub for now.
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This compat will break incoming migration from qemu < 1.3, but for
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distros where qemu-kvm was the only shipped package for years it's
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not a big loss (and I don't know any way to avoid it).
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Signed-off-by: Cole Robinson <crobinso@redhat.com>
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---
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configure | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/configure b/configure
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index 8789324..9e7f80f 100755
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--- a/configure
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+++ b/configure
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@@ -170,6 +170,7 @@ xfs=""
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vhost_net="no"
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kvm="no"
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+migrate_from_kvm="no"
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gprof="no"
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debug_tcg="no"
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debug="no"
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@@ -759,6 +760,8 @@ for opt do
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;;
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--enable-kvm) kvm="yes"
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;;
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+ --enable-migration-from-qemu-kvm) migrate_from_kvm="yes"
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+ ;;
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--disable-tcg-interpreter) tcg_interpreter="no"
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;;
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--enable-tcg-interpreter) tcg_interpreter="yes"
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@@ -1087,6 +1090,9 @@ echo " --enable-bluez enable bluez stack connectivity"
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echo " --disable-slirp disable SLIRP userspace network connectivity"
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echo " --disable-kvm disable KVM acceleration support"
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echo " --enable-kvm enable KVM acceleration support"
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+echo " --enable-migration-from-qemu-kvm Allow migration from qemu-kvm."
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+echo " This will break migration from "
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+echo " qemu < 1.3 in most cases"
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echo " --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)"
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echo " --disable-nptl disable usermode NPTL support"
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echo " --enable-nptl enable usermode NPTL support"
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@@ -3318,6 +3324,7 @@ echo "Linux AIO support $linux_aio"
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echo "ATTR/XATTR support $attr"
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echo "Install blobs $blobs"
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echo "KVM support $kvm"
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+echo "Migrate from qemu-kvm $migrate_from_kvm"
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echo "TCG interpreter $tcg_interpreter"
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echo "fdt support $fdt"
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echo "preadv support $preadv"
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@@ -3606,6 +3613,9 @@ fi
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if test "$signalfd" = "yes" ; then
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echo "CONFIG_SIGNALFD=y" >> $config_host_mak
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fi
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+if test "$migrate_from_kvm" = "yes"; then
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+ echo "CONFIG_MIGRATE_FROM_QEMU_KVM=y" >> $config_host_mak
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+fi
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if test "$tcg_interpreter" = "yes" ; then
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echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
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fi
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