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xen/tools/hotplug/Linux/launch-xenstore.in
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Juergen Gross 8937d44628 tools/xenstored: support complete log capabilities in stubdom
With 9pfs being fully available in Xenstore-stubdom now, there is no
reason to not fully support all logging capabilities in stubdom.

Open the logfile on stubdom only after the 9pfs file system has been
mounted.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2024-02-29 17:00:14 +01:00

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#!/bin/bash
#
# Copyright (c) 2016 SUSE Linux GmbH
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of version 2.1 of the GNU Lesser General Public
# License as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; If not, see <http://www.gnu.org/licenses/>.
#
XENSTORED=@XENSTORED@
. @XEN_SCRIPT_DIR@/hotplugpath.sh
test_xenstore () {
test -f @XEN_RUN_DIR@/xenstored.pid
return $?
}
timeout_xenstore () {
local time=0
local timeout=30
while [ $time -lt $timeout ] && ! test_xenstore ; do
echo -n .
time=$(($time+1))
sleep 1
done
echo
# Exit if we timed out
if ! [ $time -lt $timeout ] ; then
echo "Could not start $@"
return 1
fi
return 0
}
test_xenstore && exit 0
test -f @CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons && . @CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons
[ "$XENSTORETYPE" = "" ] && XENSTORETYPE=daemon
/bin/mkdir -p @XEN_RUN_DIR@
[ "$XENSTORETYPE" = "daemon" ] && {
[ -z "$XENSTORED_TRACE" ] || XENSTORED_ARGS="$XENSTORED_ARGS -T @XEN_LOG_DIR@/xenstored-trace.log"
[ -z "$XENSTORED_MAX_OPEN_FDS" ] && XENSTORED_MAX_OPEN_FDS=unlimited
[ -z "$XENSTORED" ] && XENSTORED=@XENSTORED@
[ -x "$XENSTORED" ] || {
echo "No xenstored found"
exit 1
}
XS_OOM_SCORE=-$((${XENSTORED_OOM_MEM_THRESHOLD:-50} * 10))
[ "$XENSTORED_MAX_OPEN_FDS" = "unlimited" ] || {
[ -z "${XENSTORED_MAX_OPEN_FDS//[0-9]}" ] &&
[ -n "$XENSTORED_MAX_OPEN_FDS" ] || {
echo "XENSTORED_MAX_OPEN_FDS=$XENSTORED_MAX_OPEN_FDS invalid"
echo "Setting to default \"unlimited\"."
XENSTORED_MAX_OPEN_FDS=unlimited
}
}
[ -r /proc/sys/fs/nr_open ] && {
MAX_FDS=`cat /proc/sys/fs/nr_open`
[ "$XENSTORED_MAX_OPEN_FDS" = "unlimited" ] && XENSTORED_MAX_OPEN_FDS=$MAX_FDS
[ $XENSTORED_MAX_OPEN_FDS -gt $MAX_FDS ] && {
echo "XENSTORED_MAX_OPEN_FDS exceeds system limit."
echo "Setting to \"$MAX_FDS\"."
XENSTORED_MAX_OPEN_FDS=$MAX_FDS
}
}
rm -f @XEN_RUN_DIR@/xenstored.pid
echo -n Starting $XENSTORED...
prlimit --nofile=$XENSTORED_MAX_OPEN_FDS $XENSTORED --pid-file @XEN_RUN_DIR@/xenstored.pid $XENSTORED_ARGS
systemd-notify --booted 2>/dev/null || timeout_xenstore $XENSTORED || exit 1
XS_PID=`cat @XEN_RUN_DIR@/xenstored.pid`
echo $XS_OOM_SCORE >/proc/$XS_PID/oom_score_adj
exit 0
}
[ "$XENSTORETYPE" = "domain" ] && {
[ -z "$XENSTORE_DOMAIN_KERNEL" ] && XENSTORE_DOMAIN_KERNEL=@LIBEXEC@/boot/xenstore-stubdom.gz
XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --kernel $XENSTORE_DOMAIN_KERNEL"
[ -z "$XENSTORE_DOMAIN_SIZE" ] && XENSTORE_DOMAIN_SIZE=8
XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --memory $XENSTORE_DOMAIN_SIZE"
[ -z "$XENSTORE_MAX_DOMAIN_SIZE" ] || XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --maxmem $XENSTORE_MAX_DOMAIN_SIZE"
[ -z "$XENSTORED_TRACE" ] || XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS -T xenstored-trace.log"
echo -n Starting $XENSTORE_DOMAIN_KERNEL...
${LIBEXEC_BIN}/init-xenstore-domain $XENSTORE_DOMAIN_ARGS || exit 1
systemd-notify --ready 2>/dev/null
exit 0
}
echo "illegal value $XENSTORETYPE for XENSTORETYPE"
exit 1