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block: Support Archipelago as a QEMU block backend

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VM Image on Archipelago volume is specified like this:

file.driver=archipelago,file.volume=<volumename>[,file.mport=<mapperd_port>[,
file.vport=<vlmcd_port>][,file.segment=<segment_name>]]

'archipelago' is the protocol.

'mport' is the port number on which mapperd is listening. This is optional
and if not specified, QEMU will make Archipelago to use the default port.

'vport' is the port number on which vlmcd is listening. This is optional
and if not specified, QEMU will make Archipelago to use the default port.

'segment' is the name of the shared memory segment Archipelago stack is using.
This is optional and if not specified, QEMU will make Archipelago to use the
default value, 'archipelago'.

Examples:

file.driver=archipelago,file.volume=my_vm_volume
file.driver=archipelago,file.volume=my_vm_volume,file.mport=123
file.driver=archipelago,file.volume=my_vm_volume,file.mport=123,
file.vport=1234
file.driver=archipelago,file.volume=my_vm_volume,file.mport=123,
file.vport=1234,file.segment=my_segment

Signed-off-by: Chrysostomos Nanakos <cnanakos@grnet.gr>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Chrysostomos Nanakos 2014-08-04 17:35:32 +03:00 • committed by Kevin Wolf
parent 000c4dfff4
commit c9a12e751b
4 changed files with 835 additions and 0 deletions
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40
configure vendored
View file

@ -326,6 +326,7 @@ seccomp=""
glusterfs=""
glusterfs_discard="no"
glusterfs_zerofill="no"
archipelago=""
virtio_blk_data_plane=""
gtk=""
gtkabi=""
@ -1087,6 +1088,10 @@ for opt do
;;
--enable-glusterfs) glusterfs="yes"
;;
--disable-archipelago) archipelago="no"
;;
--enable-archipelago) archipelago="yes"
;;
--disable-virtio-blk-data-plane) virtio_blk_data_plane="no"
;;
--enable-virtio-blk-data-plane) virtio_blk_data_plane="yes"
@ -1382,6 +1387,8 @@ Advanced options (experts only):
--enable-coroutine-pool enable coroutine freelist (better performance)
--enable-glusterfs enable GlusterFS backend
--disable-glusterfs disable GlusterFS backend
--enable-archipelago enable Archipelago backend
--disable-archipelago disable Archipelago backend
--enable-gcov enable test coverage analysis with gcov
--gcov=GCOV use specified gcov [$gcov_tool]
--disable-tpm disable TPM support
@ -3071,6 +3078,33 @@ EOF
fi
fi
##########################################
# archipelago probe
if test "$archipelago" != "no" ; then
cat > $TMPC <<EOF
#include <stdio.h>
#include <xseg/xseg.h>
#include <xseg/protocol.h>
int main(void) {
xseg_initialize();
return 0;
}
EOF
archipelago_libs=-lxseg
if compile_prog "" "$archipelago_libs"; then
archipelago="yes"
libs_tools="$archipelago_libs $libs_tools"
libs_softmmu="$archipelago_libs $libs_softmmu"
else
if test "$archipelago" = "yes" ; then
feature_not_found "Archipelago backend support" "Install libxseg devel"
fi
archipelago="no"
fi
fi
##########################################
# glusterfs probe
if test "$glusterfs" != "no" ; then
@ -4252,6 +4286,7 @@ echo "seccomp support $seccomp"
echo "coroutine backend $coroutine"
echo "coroutine pool $coroutine_pool"
echo "GlusterFS support $glusterfs"
echo "Archipelago support $archipelago"
echo "virtio-blk-data-plane $virtio_blk_data_plane"
echo "gcov $gcov_tool"
echo "gcov enabled $gcov"
@ -4690,6 +4725,11 @@ if test "$glusterfs_zerofill" = "yes" ; then
echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
fi
if test "$archipelago" = "yes" ; then
echo "CONFIG_ARCHIPELAGO=m" >> $config_host_mak
echo "ARCHIPELAGO_LIBS=$archipelago_libs" >> $config_host_mak
fi
if test "$libssh2" = "yes" ; then
echo "CONFIG_LIBSSH2=m" >> $config_host_mak
echo "LIBSSH2_CFLAGS=$libssh2_cflags" >> $config_host_mak