runqemu: support multiple qemus running when nfs

Fixed:
* In build1:
  $ runqemu nfs qemux86-64
  In build2:
  $ runqemu nfs qemux86-64

  It would fail before since the port numerbs and conf files are
  conflicted, now make runqemu-export-rootfs work together with runqemu to
  fix the problem.

* And we don't need export PSEUDO_LOCALSTATEDIR in runqemu, the
  runqemu-export-rootfs can handle it well based on NFS_EXPORT_DIR.

* Remove "async" option from unfsd to fix warning in syslog:
  Warning: unknown exports option `async' ignored

* Fixed typos

Both slirp and tap can work.

(From OE-Core rev: 84b2281595bbdb497daa42640e3ee4658bf0bed8)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Robert Yang 2016-11-23 00:57:39 -08:00 committed by Richard Purdie
parent c32720422e
commit 5ea3627dbb
2 changed files with 42 additions and 23 deletions

View File

@ -694,17 +694,35 @@ class BaseConfig(object):
else:
self.nfs_server = '192.168.7.1'
nfs_instance = int(self.nfs_instance)
# Figure out a new nfs_instance to allow multiple qemus running.
# CentOS 7.1's ps doesn't print full command line without "ww"
# when invoke by subprocess.Popen().
cmd = "ps auxww"
ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout.read().decode('utf-8')
pattern = '/bin/unfsd .* -i .*\.pid -e .*/exports([0-9]+) '
all_instances = re.findall(pattern, ps, re.M)
if all_instances:
all_instances.sort(key=int)
self.nfs_instance = int(all_instances.pop()) + 1
mountd_rpcport = 21111 + nfs_instance
nfsd_rpcport = 11111 + nfs_instance
nfsd_port = 3049 + 2 * nfs_instance
mountd_port = 3048 + 2 * nfs_instance
unfs_opts="nfsvers=3,port=%s,mountprog=%s,nfsprog=%s,udp,mountport=%s" % (nfsd_port, mountd_rpcport, nfsd_rpcport, mountd_port)
self.unfs_opts = unfs_opts
mountd_rpcport = 21111 + self.nfs_instance
nfsd_rpcport = 11111 + self.nfs_instance
nfsd_port = 3049 + 2 * self.nfs_instance
mountd_port = 3048 + 2 * self.nfs_instance
p = '%s/.runqemu-sdk/pseudo' % os.getenv('HOME')
os.putenv('PSEUDO_LOCALSTATEDIR', p)
# Export vars for runqemu-export-rootfs
export_dict = {
'NFS_INSTANCE': self.nfs_instance,
'MOUNTD_RPCPORT': mountd_rpcport,
'NFSD_RPCPORT': nfsd_rpcport,
'NFSD_PORT': nfsd_port,
'MOUNTD_PORT': mountd_port,
}
for k, v in export_dict.items():
# Use '%s' since they are integers
os.putenv(k, '%s' % v)
self.unfs_opts="nfsvers=3,port=%s,mountprog=%s,nfsprog=%s,udp,mountport=%s" % (nfsd_port, mountd_rpcport, nfsd_rpcport, mountd_port)
# Extract .tar.bz2 or .tar.bz if no self.nfs_dir
if not self.nfs_dir:
@ -732,7 +750,7 @@ class BaseConfig(object):
self.nfs_dir = dest
# Start the userspace NFS server
cmd = 'runqemu-export-rootfs restart %s' % self.nfs_dir
cmd = 'runqemu-export-rootfs start %s' % self.nfs_dir
logger.info('Running %s...' % cmd)
if subprocess.call(cmd, shell=True) != 0:
raise Exception('Failed to run %s' % cmd)
@ -741,6 +759,8 @@ class BaseConfig(object):
def setup_slirp(self):
"""Setup user networking"""
if self.fstype == 'nfs':
self.setup_nfs()
self.kernel_cmdline_script += ' ip=dhcp'
@ -808,14 +828,13 @@ class BaseConfig(object):
logger.error("Failed to setup tap device. Run runqemu-gen-tapdevs to manually create.")
return 1
self.tap = tap
n0 = tap[3:]
n1 = int(n0) * 2 + 1
n2 = n1 + 1
self.nfs_instance = n0
tapnum = int(tap[3:])
gateway = tapnum * 2 + 1
client = gateway + 1
if self.fstype == 'nfs':
self.setup_nfs()
self.kernel_cmdline_script += " ip=192.168.7.%s::192.168.7.%s:255.255.255.0" % (n2, n1)
mac = "52:54:00:12:34:%02x" % n2
self.kernel_cmdline_script += " ip=192.168.7.%s::192.168.7.%s:255.255.255.0" % (client, gateway)
mac = "52:54:00:12:34:%02x" % client
qb_tap_opt = self.get('QB_TAP_OPT')
if qb_tap_opt:
qemu_tap_opt = qb_tap_opt.replace('@TAP@', tap).replace('@MAC@', mac)
@ -858,11 +877,11 @@ class BaseConfig(object):
vm_drive = '-drive if=none,id=hd,file=%s,format=%s -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=hd' \
% (self.rootfs, rootfs_format)
elif subprocess.call(cmd2, shell=True) == 0:
logger.info('Using scsi drive')
logger.info('Using ide drive')
vm_drive = "%s,format=%s" % (self.rootfs, rootfs_format)
else:
logger.warn("Can't detect drive type %s" % self.rootfs)
logger.warn('Tring to use virtio block drive')
logger.warn('Trying to use virtio block drive')
vm_drive = '-drive if=virtio,file=%s,format=%s' % (self.rootfs, rootfs_format)
self.rootfs_options = '%s -no-reboot' % vm_drive
self.kernel_cmdline = 'root=%s rw highres=off' % (self.get('QB_KERNEL_ROOT'))

View File

@ -78,13 +78,13 @@ if [ ! -d "$PSEUDO_LOCALSTATEDIR" ]; then
fi
# rpc.mountd RPC port
MOUNTD_RPCPORT=$[ 21111 + $NFS_INSTANCE ]
MOUNTD_RPCPORT=${MOUNTD_RPCPORT:=$[ 21111 + $NFS_INSTANCE ]}
# rpc.nfsd RPC port
NFSD_RPCPORT=$[ 11111 + $NFS_INSTANCE ]
NFSD_RPCPORT=${NFSD_RPCPORT:=$[ 11111 + $NFS_INSTANCE ]}
# NFS server port number
NFSD_PORT=$[ 3049 + 2 * $NFS_INSTANCE ]
NFSD_PORT=${NFSD_PORT:=$[ 3049 + 2 * $NFS_INSTANCE ]}
# mountd port number
MOUNTD_PORT=$[ 3048 + 2 * $NFS_INSTANCE ]
MOUNTD_PORT=${MOUNTD_PORT:=$[ 3048 + 2 * $NFS_INSTANCE ]}
## For debugging you would additionally add
## --debug all
@ -109,7 +109,7 @@ case "$1" in
fi
echo "Creating exports file..."
echo "$NFS_EXPORT_DIR (rw,async,no_root_squash,no_all_squash,insecure)" > $EXPORTS
echo "$NFS_EXPORT_DIR (rw,no_root_squash,no_all_squash,insecure)" > $EXPORTS
echo "Starting User Mode nfsd"
echo " $PSEUDO $PSEUDO_OPTS $OECORE_NATIVE_SYSROOT/usr/bin/unfsd $UNFSD_OPTS"