On 01/01/2014 06:24 AM, Gianluca Cecchi wrote:
On Wed, Jan 1, 2014 at 4:38 AM, R P Herrold wrote:
Out of curiousity, _what_ build environment 'flags' do you
all, participating in this thread, refer to? -- the thread
does not enumerate them explicitly, and one cannot expect to
hit by 'indirect fire', a target not exposed
With best regards, this New Year's eve
I'm far from being a programmer, but as I went to compare build
environments, between
qemu-kvm-rhev-0.12.1.2-2.415.el6_5.3.src.rpm
and
qemu-kvm-0.12.1.2-2.415.el6_5.3.src.rpm
in related spec file I see
[g.cecchi@tekkaman SPECS]$ diff qemu-kvm.spec.upstream qemu-kvm.spec.rhev
3c3
< %define rhev 0
---
%define rhev 1
12928a12929
rhel-6.5
and apart other probably not trivial implications, such as guest agent
part, I see that the "configure" command takes one extra argument in
base RH EL 6.5, that is
--disable-rhev-features
The only patch file containing this keyword is
kvm-Block-streaming-disable-for-RHEL.patch
and inside it there are these lines that impacts configure options and
related built qemu-kvm:
--- a/configure
+++ b/configure
@@ -286,6 +286,7 @@ spice=""
smartcard=""
smartcard_nss=""
live_snapshots="yes"
+block_stream="yes"
usb_redir=""
# OS specific
@@ -686,10 +687,22 @@ for opt do
;;
--enable-live-snapshots) live_snapshots="yes"
;;
+ --disable-block-stream) block_stream="no"
+ ;;
+ --enable-block-stream) block_stream="yes"
+ ;;
--disable-usb-redir) usb_redir="no"
;;
--enable-usb-redir) usb_redir="yes"
;;
+ --disable-rhev-features)
+ live_snapshots="no";
+ block_stream="no";
+ ;;
+ --enable-rhev-features)
+ live_snapshots="yes";
+ block_stream="yes";
+ ;;
*) echo "ERROR: unknown option $opt"; show_help="yes"
;;
esac
@@ -863,8 +876,12 @@ echo " --disable-smartcard-nss disable
smartcard nss support"
echo " --enable-smartcard-nss enable smartcard nss support"
echo " --disable-live-snapshots disable live block device snapshot support"
echo " --enable-live-snapshots enable live block device snapshot support"
+echo " --disable-block-stream disable block streaming support"
+echo " --enable-block-stream enable block streaming support"
echo " --disable-usb-redir disable usb network redirection support"
echo " --enable-usb-redir enable usb network redirection support"
+echo " --disable-rhev-features disable RHEV-only features"
+echo " --enable-rhev-features enable RHEV-only features"
echo ""
echo "NOTE: The object files are built at the place where configure
is launched"
exit 1
@@ -2271,6 +2288,7 @@ echo "Trace backend $trace_backend"
echo "spice support $spice"
echo "nss used $smartcard_nss"
echo "Live snapshots $live_snapshots"
+echo "Block streaming $block_stream"
echo "xfsctl support $xfs"
echo "usb net redir $usb_redir"
@@ -2526,6 +2544,10 @@ if test "$live_snapshots" = "yes" ; then
echo "CONFIG_LIVE_SNAPSHOTS=y" >> $config_host_mak
fi
+if test "$block_stream" = "yes" ; then
+ echo "CONFIG_BLOCK_STREAM=y" >> $config_host_mak
+fi
+
if test "$usb_redir" = "yes" ; then
echo "CONFIG_USB_REDIR=y" >> $config_host_mak
fi
I don't think the rhev argument has instead implications in upstream
source qemu-kvm-0.12.1.2.tar.gz
So I think that if you want to dig more and if you have more
competences, you have to see the full spec file and the full patch
above.
Files downloaded here:
upstream
http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/os/SRPMS/qemu-kvm-0.12.1.2-2.415.el6_5.3.src.rpm
rhev
http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-kvm-rhev-0.12.1.2-2.415.el6_5.3.src.rpm
Just for the record, we have setup a jenkins job to rebuild qemu-kvm for
el6 until we get it officially from centos:
http://jenkins.ovirt.org/view/Packaging/job/qemu-kvm-rhev_create_rpms_el6/
--
Cheers
Douglas
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