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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [patch 1/8] xend: pass-through: Common parse_pci_name()
Still not applying at my end. It could be the in-line patch is getting
munged somewhere down the line. Feel free to send the patches to me
privately as a bunch of attachments in a single email.
-- Keir
On 16/06/2009 14:00, "Simon Horman" <horms@xxxxxxxxxxxx> wrote:
> Share some parsing code between different parts of xm.
>
> This has the side-effect that the device specification for
> hot-plug may now include the VSLOT and OPTS as per device
> specifictions in the domain configuration file.
>
> SEQ:BUS:DEV.FUNC[,OPT...]
>
> e.g. 0000:00:01.00@6
>
> Cc: Dexuan Cui <dexuan.cui@xxxxxxxxx>
> Cc: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
> Cc: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
> Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
>
> ---
>
> Wed, 20 May 2009 23:07:42 +1000
> * Fix syntax errors in parse_pci_name() and parse_pci_name_bdf6()
> - unnoticed as they were resolved by the subsequent patch
> "xm: Allow multi-function device specifications to be parsed
> * Enhanced error reporting in parse_pci_name()
> * Have parse_pci_name_bdf6() return an int rather than a string for vslot in
> keeping with the other integer elements of the bdf6 tuple
>
> Fri, 22 May 2009 15:52:50 +1000
> * Consolidate get_all_pci_bdf6() and get_all_pci_devices()
>
> Thu, 28 May 2009 23:56:14 +1000
> * Up-port
>
> Tue, 16 Jun 2009 18:37:05 +1000
> * In find_parent(), dev['dom'] should be dev['domain'].
> Pointed out by Takebe-san.
>
> Tue, 16 Jun 2009 22:53:18 +1000
> * Up-port to xen-unstable.hg 19763
>
> Index: xen-unstable.hg/tools/python/xen/util/pci.py
> ===================================================================
> --- xen-unstable.hg.orig/tools/python/xen/util/pci.py 2009-06-16
> 22:48:34.000000000 +1000
> +++ xen-unstable.hg/tools/python/xen/util/pci.py 2009-06-16
> 22:49:32.000000000 +1000
> @@ -15,6 +15,7 @@ import time
> import threading
> from xen.util import utils
> from xen.xend import sxp
> +from xen.xend.XendConstants import AUTO_PHP_SLOT
>
> PROC_PCI_PATH = '/proc/bus/pci/devices'
> PROC_PCI_NUM_RESOURCES = 7
> @@ -35,7 +36,6 @@ LSPCI_CMD = 'lspci'
>
> PCI_DEV_REG_EXPRESS_STR = r"[0-9a-fA-F]{4}:[0-9a-fA-F]{2}:[0-9a-fA-F]{2}."+ \
> r"[0-9a-fA-F]{1}"
> -PCI_DEV_FORMAT_STR = '%04x:%02x:%02x.%01x'
>
> DEV_TYPE_PCIe_ENDPOINT = 0
> DEV_TYPE_PCIe_BRIDGE = 1
> @@ -148,22 +148,62 @@ def parse_hex(val):
> except ValueError:
> return None
>
> +def parse_pci_name_extended(pci_dev_str):
> + pci_match = re.match(r"((?P<domain>[0-9a-fA-F]{1,4})[:,])?" +
> + r"(?P<bus>[0-9a-fA-F]{1,2})[:,]" +
> + r"(?P<slot>[0-9a-fA-F]{1,2})[.,]" +
> + r"(?P<func>(\*|[0-7]))" +
> + r"(@(?P<vslot>[01]?[0-9a-fA-F]))?" +
> + r"(,(?P<opts>.*))?$", pci_dev_str)
> +
> + if pci_match == None:
> + raise PciDeviceParseError("Failed to parse pci device: %s" %
> + pci_dev_str)
> +
> + out = {}
> + pci_dev_info = pci_match.groupdict('')
> + if pci_dev_info['domain'] == '':
> + domain = 0
> + else:
> + domain = int(pci_dev_info['domain'], 16)
> + out['domain'] = "0x%04x" % domain
> + out['bus'] = "0x%02x" % int(pci_dev_info['bus'], 16)
> + out['slot'] = "0x%02x" % int(pci_dev_info['slot'], 16)
> + out['func'] = "0x%x" % int(pci_dev_info['func'], 16)
> + if pci_dev_info['vslot'] == '':
> + vslot = AUTO_PHP_SLOT
> + else:
> + vslot = int(pci_dev_info['vslot'], 16)
> + out['vslot'] = "0x%02x" % vslot
> + if pci_dev_info['opts'] != '':
> + out['opts'] = split_pci_opts(pci_dev_info['opts'])
> + check_pci_opts(out['opts'])
> +
> + return out
> +
> def parse_pci_name(pci_name_string):
> - pci_match = re.match(r"((?P<domain>[0-9a-fA-F]{1,4})[:,])?" + \
> - r"(?P<bus>[0-9a-fA-F]{1,2})[:,]" + \
> - r"(?P<slot>[0-9a-fA-F]{1,2})[.,]" + \
> - r"(?P<func>[0-7])$", pci_name_string)
> - if pci_match is None:
> - raise PciDeviceParseError(('Failed to parse pci device name: %s' %
> - pci_name_string))
> - pci_dev_info = pci_match.groupdict('0')
> -
> - domain = parse_hex(pci_dev_info['domain'])
> - bus = parse_hex(pci_dev_info['bus'])
> - slot = parse_hex(pci_dev_info['slot'])
> - func = parse_hex(pci_dev_info['func'])
> + pci = parse_pci_name_extended(pci_name_string)
> +
> + if int(pci['vslot'], 16) != AUTO_PHP_SLOT:
> + raise PciDeviceParseError(("Failed to parse pci device: %s: " +
> + "vslot provided where prohibited: %s") %
> + (pci_name_string, pci['vslot']))
> + if 'opts' in pci:
> + raise PciDeviceParseError(("Failed to parse pci device: %s: " +
> + "options provided where prohibited: %s") %
> + (pci_name_string, pci['opts']))
> +
> + return pci
> +
> +def __pci_dict_to_fmt_str(fmt, dev):
> + return fmt % (int(dev['domain'], 16), int(dev['bus'], 16),
> + int(dev['slot'], 16), int(dev['func'], 16))
>
> - return (domain, bus, slot, func)
> +def pci_dict_to_bdf_str(dev):
> + return __pci_dict_to_fmt_str('%04x:%02x:%02x.%01x', dev)
> +
> +def pci_dict_to_xc_str(dev):
> + return __pci_dict_to_fmt_str('0x%x, 0x%x, 0x%x, 0x%x', dev)
>
> def extract_the_exact_pci_names(pci_names):
> result = []
> @@ -198,27 +238,7 @@ def get_all_pci_names():
> return pci_names
>
> def get_all_pci_devices():
> - pci_devs = []
> - for pci_name in get_all_pci_names():
> - pci_match = re.match(r"((?P<domain>[0-9a-fA-F]{1,4})[:,])?" + \
> - r"(?P<bus>[0-9a-fA-F]{1,2})[:,]" + \
> - r"(?P<slot>[0-9a-fA-F]{1,2})[.,]" + \
> - r"(?P<func>[0-7])$", pci_name)
> - if pci_match is None:
> - raise PciDeviceParseError(('Failed to parse pci device name: %s'
> %
> - pci_name))
> - pci_dev_info = pci_match.groupdict('0')
> - domain = parse_hex(pci_dev_info['domain'])
> - bus = parse_hex(pci_dev_info['bus'])
> - slot = parse_hex(pci_dev_info['slot'])
> - func = parse_hex(pci_dev_info['func'])
> - try:
> - pci_dev = PciDevice(domain, bus, slot, func)
> - except:
> - continue
> - pci_devs.append(pci_dev)
> -
> - return pci_devs
> + return map(PciDevice, map(parse_pci_name, get_all_pci_names()))
>
> def _create_lspci_info():
> """Execute 'lspci' command and parse the result.
> @@ -241,7 +261,7 @@ def _create_lspci_info():
> try:
> (opt, value) = line.split(':\t')
> if opt == 'Slot' or (opt == 'Device' and first_device):
> - device_name = PCI_DEV_FORMAT_STR % parse_pci_name(value)
> + device_name = pci_dict_to_bdf_str(parse_pci_name(value))
> first_device = False
> else:
> device_info[opt] = value
> @@ -292,8 +312,7 @@ def find_all_devices_owned_by_pciback():
> pci_list = extract_the_exact_pci_names(pci_names)
> dev_list = []
> for pci in pci_list:
> - (dom, b, d, f) = parse_pci_name(pci)
> - dev = PciDevice(dom, b, d, f)
> + dev = PciDevice(parse_pci_name(pci))
> dev_list = dev_list + [dev]
> return dev_list
>
> @@ -400,12 +419,12 @@ class PciDeviceVslotMissing(Exception):
> return 'pci: no vslot: ' + self.message
>
> class PciDevice:
> - def __init__(self, domain, bus, slot, func):
> - self.domain = domain
> - self.bus = bus
> - self.slot = slot
> - self.func = func
> - self.name = PCI_DEV_FORMAT_STR % (domain, bus, slot, func)
> + def __init__(self, dev):
> + self.domain = int(dev['domain'], 16)
> + self.bus = int(dev['bus'], 16)
> + self.slot = int(dev['slot'], 16)
> + self.func = int(dev['func'], 16)
> + self.name = pci_dict_to_bdf_str(dev)
> self.cfg_space_path = find_sysfs_mnt()+SYSFS_PCI_DEVS_PATH+'/'+ \
> self.name + SYSFS_PCI_DEV_CONFIG_PATH
> self.irq = 0
> @@ -447,14 +466,15 @@ class PciDevice:
> # We have reached the upmost one.
> return None
> else:
> + dev = {}
> lst = parent.split(':')
> - dom = int(lst[0], 16)
> - bus = int(lst[1], 16)
> + dev['domain'] = int(lst[0], 16)
> + dev['bus'] = int(lst[1], 16)
> lst = lst[2]
> lst = lst.split('.')
> - dev = int(lst[0], 16)
> - func = int(lst[1], 16)
> - return (dom, bus, dev, func)
> + dev['slot'] = int(lst[0], 16)
> + dev['func'] = int(lst[1], 16)
> + return dev
> except OSError, (errno, strerr):
> raise PciDeviceParseError('Can not locate the parent of %s',
> self.name)
> @@ -464,15 +484,13 @@ class PciDevice:
> dev = self.find_parent()
> if dev is None:
> return None
> - (dom, b, d, f) = dev
> - dev = dev_parent = PciDevice(dom, b, d, f)
> + dev = dev_parent = PciDevice(dev)
> while dev_parent.dev_type != DEV_TYPE_PCIe_BRIDGE:
> parent = dev_parent.find_parent()
> if parent is None:
> break
> - (dom, b, d, f) = parent
> dev = dev_parent
> - dev_parent = PciDevice(dom, b, d, f)
> + dev_parent = PciDevice(parent)
> return dev
>
> def find_all_devices_behind_the_bridge(self, ignore_bridge):
> @@ -483,8 +501,7 @@ class PciDevice:
>
> list = [self.name]
> for pci_str in dev_list:
> - (dom, b, d, f) = parse_pci_name(pci_str)
> - dev = PciDevice(dom, b, d, f)
> + dev = PciDevice(parse_pci_name(pci_str))
> if dev.dev_type == DEV_TYPE_PCI_BRIDGE or \
> dev.dev_type == DEV_TYPE_PCIe_BRIDGE:
> sub_list_including_self = \
> @@ -600,7 +617,7 @@ class PciDevice:
>
> def find_all_the_multi_functions(self):
> sysfs_mnt = find_sysfs_mnt()
> - parent = PCI_DEV_FORMAT_STR % self.find_parent()
> + parent = pci_dict_to_bdf_str(self.find_parent())
> pci_names = os.popen('ls ' + sysfs_mnt + SYSFS_PCI_DEVS_PATH + '/' +
> \
> parent + '/').read()
> funcs = extract_the_exact_pci_names(pci_names)
> @@ -758,8 +775,7 @@ class PciDevice:
> if len(devs) == 0:
> return
> for pci_dev in devs:
> - (dom, b, d, f) = parse_pci_name(pci_dev)
> - dev = PciDevice(dom, b, d, f)
> + dev = PciDevice(parse_pci_name(pci_dev))
> if dev.driver == 'pciback':
> continue
> err_msg = 'pci: %s must be co-assigned to the same guest with %s'
> + \
> @@ -785,7 +801,7 @@ class PciDevice:
> funcs = self.find_all_the_multi_functions()
> self.devs_check_driver(funcs)
>
> - parent = '%04x:%02x:%02x.%01x' % self.find_parent()
> + parent = pci_dict_to_bdf_str(self.find_parent())
>
> # Do Secondary Bus Reset.
> self.do_secondary_bus_reset(parent, funcs)
> Index: xen-unstable.hg/tools/python/xen/xend/XendDomainInfo.py
> ===================================================================
> --- xen-unstable.hg.orig/tools/python/xen/xend/XendDomainInfo.py
> 2009-06-16 22:48:34.000000000 +1000
> +++ xen-unstable.hg/tools/python/xen/xend/XendDomainInfo.py 2009-06-16
> 22:49:32.000000000 +1000
> @@ -39,7 +39,8 @@ from xen.util import asserts, auxbin
> from xen.util.blkif import blkdev_uname_to_file, blkdev_uname_to_taptype
> import xen.util.xsm.xsm as security
> from xen.util import xsconstants
> -from xen.util.pci import serialise_pci_opts, pci_opts_list_to_sxp
> +from xen.util.pci import serialise_pci_opts, pci_opts_list_to_sxp, \
> + pci_dict_to_bdf_str, pci_dict_to_xc_str
>
> from xen.xend import balloon, sxp, uuid, image, arch
> from xen.xend import XendOptions, XendNode, XendConfig
> @@ -310,9 +311,8 @@ def do_FLR(domid):
> dev_str_list = get_assigned_pci_devices(domid)
>
> for dev_str in dev_str_list:
> - (dom, b, d, f) = parse_pci_name(dev_str)
> try:
> - dev = PciDevice(dom, b, d, f)
> + dev = PciDevice(parse_pci_name(dev_str))
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -652,23 +652,15 @@ class XendDomainInfo:
> raise VmError("device is already inserted")
>
> # Test whether the devices can be assigned with VT-d
> - pci_str = "%s, %s, %s, %s" % (new_dev['domain'],
> - new_dev['bus'],
> - new_dev['slot'],
> - new_dev['func'])
> - bdf = xc.test_assign_device(0, pci_str)
> + bdf = xc.test_assign_device(0, pci_dict_to_xc_str(new_dev))
> if bdf != 0:
> if bdf == -1:
> raise VmError("failed to assign device: maybe the platform"
> " doesn't support VT-d, or VT-d isn't enabled"
> " properly?")
> - bus = (bdf >> 16) & 0xff
> - devfn = (bdf >> 8) & 0xff
> - dev = (devfn >> 3) & 0x1f
> - func = devfn & 0x7
> - raise VmError("fail to assign device(%x:%x.%x): maybe it has"
> + raise VmError("fail to assign device(%s): maybe it has"
> " already been assigned to other domain, or maybe"
> - " it doesn't exist." % (bus, dev, func))
> + " it doesn't exist." %
> pci_dict_to_bdf_str(new_dev))
>
> # Here, we duplicate some checkings (in some cases, we mustn't allow
> # a device to be hot-plugged into an HVM guest) that are also done in
> @@ -680,12 +672,8 @@ class XendDomainInfo:
> # Test whether the device is owned by pciback. For instance, we can't
> # hotplug a device being used by Dom0 itself to an HVM guest.
> from xen.xend.server.pciif import PciDevice, parse_pci_name
> - domain = int(new_dev['domain'],16)
> - bus = int(new_dev['bus'],16)
> - dev = int(new_dev['slot'],16)
> - func = int(new_dev['func'],16)
> try:
> - pci_device = PciDevice(domain, bus, dev, func)
> + pci_device = PciDevice(new_dev)
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -710,9 +698,8 @@ class XendDomainInfo:
> pci_device.devs_check_driver(coassignment_list)
> assigned_pci_device_str_list = self._get_assigned_pci_devices()
> for pci_str in coassignment_list:
> - (domain, bus, dev, func) = parse_pci_name(pci_str)
> - dev_str = '0x%x,0x%x,0x%x,0x%x' % (domain, bus, dev, func)
> - if xc.test_assign_device(0, dev_str) == 0:
> + pci_dev = parse_pci_name(pci_str)
> + if xc.test_assign_device(0, pci_dict_to_xc_str(pci_dev)) == 0:
> continue
> if not pci_str in assigned_pci_device_str_list:
> raise VmError(("pci: failed to pci-attach %s to domain %s" +
> \
> @@ -742,12 +729,9 @@ class XendDomainInfo:
> if new_dev.has_key('opts'):
> opts = ',' + serialise_pci_opts(new_dev['opts'])
>
> - bdf_str = "%s:%s:%s.%s@%s%s" % (new_dev['domain'],
> - new_dev['bus'],
> - new_dev['slot'],
> - new_dev['func'],
> - new_dev['vslot'],
> - opts)
> + bdf_str = "%s@%02x%s" % (pci_dict_to_bdf_str(new_dev),
> + int(new_dev['vslot'], 16), opts)
> + log.debug("XendDomainInfo.hvm_pci_device_insert_dev: %s" %
> bdf_str)
> self.image.signalDeviceModel('pci-ins', 'pci-inserted', bdf_str)
>
> vslot =
> xstransact.Read("/local/domain/0/device-model/%i/parameter"
> @@ -864,9 +848,8 @@ class XendDomainInfo:
> vslot = x['vslot']
> break
> if vslot == "":
> - raise VmError("Device %04x:%02x:%02x.%01x is not
> connected"
> - % (int(dev['domain'],16),
> int(dev['bus'],16),
> - int(dev['slot'],16),
> int(dev['func'],16)))
> + raise VmError("Device %s is not connected" %
> + pci_dict_to_bdf_str(dev))
> self.hvm_destroyPCIDevice(int(vslot, 16))
> # Update vslot
> dev['vslot'] = vslot
> @@ -1152,12 +1135,8 @@ class XendDomainInfo:
> # list of D's co-assignment devices, DD is not assigned (to domN).
> #
> from xen.xend.server.pciif import PciDevice
> - domain = int(x['domain'],16)
> - bus = int(x['bus'],16)
> - dev = int(x['slot'],16)
> - func = int(x['func'],16)
> try:
> - pci_device = PciDevice(domain, bus, dev, func)
> + pci_device = PciDevice(x)
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -1172,9 +1151,8 @@ class XendDomainInfo:
> )% (pci_device.name, self.info['name_label'], pci_str))
>
>
> - bdf_str = "%s:%s:%s.%s" % (x['domain'], x['bus'], x['slot'],
> x['func'])
> + bdf_str = pci_dict_to_bdf_str(x)
> log.info("hvm_destroyPCIDevice:%s:%s!", x, bdf_str)
> -
> if self.domid is not None:
> self.image.signalDeviceModel('pci-rem', 'pci-removed', bdf_str)
>
> @@ -1338,21 +1316,12 @@ class XendDomainInfo:
> if self.domid is not None:
> return get_assigned_pci_devices(self.domid)
>
> - dev_str_list = []
> dev_info = self._getDeviceInfo_pci(devid)
> if dev_info is None:
> - return dev_str_list
> + return []
> dev_uuid = sxp.child_value(dev_info, 'uuid')
> pci_conf = self.info['devices'][dev_uuid][1]
> - pci_devs = pci_conf['devs']
> - for pci_dev in pci_devs:
> - domain = int(pci_dev['domain'], 16)
> - bus = int(pci_dev['bus'], 16)
> - slot = int(pci_dev['slot'], 16)
> - func = int(pci_dev['func'], 16)
> - dev_str = "%04x:%02x:%02x.%01x" % (domain, bus, slot, func)
> - dev_str_list = dev_str_list + [dev_str]
> - return dev_str_list
> + return map(pci_dict_to_bdf_str, pci_conf['devs'])
>
> def setMemoryTarget(self, target):
> """Set the memory target of this domain.
> @@ -3909,12 +3878,12 @@ class XendDomainInfo:
> target_dev = None
> new_pci_sxp = ['pci']
> for dev in sxp.children(old_pci_sxp, 'dev'):
> - domain = int(sxp.child_value(dev, 'domain'), 16)
> - bus = int(sxp.child_value(dev, 'bus'), 16)
> - slot = int(sxp.child_value(dev, 'slot'), 16)
> - func = int(sxp.child_value(dev, 'func'), 16)
> - name = "%04x:%02x:%02x.%01x" % (domain, bus, slot, func)
> - if ppci.get_name() == name:
> + pci_dev = {}
> + pci_dev['domain'] = sxp.child_value(dev, 'domain')
> + pci_dev['bus'] = sxp.child_value(dev, 'bus')
> + pci_dev['slot'] = sxp.child_value(dev, 'slot')
> + pci_dev['func'] = sxp.child_value(dev, 'func')
> + if ppci.get_name() == pci_dict_to_bdf_str(pci_dev):
> target_dev = dev
> else:
> new_pci_sxp.append(dev)
> Index: xen-unstable.hg/tools/python/xen/xend/XendNode.py
> ===================================================================
> --- xen-unstable.hg.orig/tools/python/xen/xend/XendNode.py 2009-06-16
> 22:48:34.000000000 +1000
> +++ xen-unstable.hg/tools/python/xen/xend/XendNode.py 2009-06-16
> 22:49:32.000000000 +1000
> @@ -340,8 +340,7 @@ class XendNode:
> except KeyError:
> pass
>
> - (domain, bus, slot, func) = PciUtil.parse_pci_name(pci_name)
> - pci_dev = PciUtil.PciDevice(domain, bus, slot, func)
> + pci_dev = PciUtil.PciDevice(PciUtil.parse_pci_name(pci_name))
> ppci_record = {
> 'domain': pci_dev.domain,
> 'bus': pci_dev.bus,
> Index: xen-unstable.hg/tools/python/xen/xend/server/pciif.py
> ===================================================================
> --- xen-unstable.hg.orig/tools/python/xen/xend/server/pciif.py 2009-06-16
> 22:48:34.000000000 +1000
> +++ xen-unstable.hg/tools/python/xen/xend/server/pciif.py 2009-06-16
> 22:49:32.000000000 +1000
> @@ -130,13 +130,7 @@ class PciController(DevController):
> log.debug('Reconfiguring PCI device %s.' % dev)
> attaching = False
>
> - (domain, bus, slotfunc) = dev.split(':')
> - (slot, func) = slotfunc.split('.')
> - domain = parse_hex(domain)
> - bus = parse_hex(bus)
> - slot = parse_hex(slot)
> - func = parse_hex(func)
> - self.setupOneDevice(domain, bus, slot, func)
> + self.setupOneDevice(parse_pci_name(dev))
>
> self.writeBackend(devid, 'dev-%i' % devno, dev)
> self.writeBackend(devid, 'state-%i' % devno,
> @@ -248,15 +242,13 @@ class PciController(DevController):
> return
>
> #group string format xx:xx.x,xx:xx.x,
> - devstr_len = group_str.find(',')
> - for i in range(0, len(group_str), devstr_len + 1):
> - (bus, slotfunc) = group_str[i:i + devstr_len].split(':')
> - (slot, func) = slotfunc.split('.')
> - b = parse_hex(bus)
> - d = parse_hex(slot)
> - f = parse_hex(func)
> + for i in group_str.split(','):
> + if i == '':
> + continue
> + pci_dev = parse_pci_name(i)
> + pci_dev['domain'] = '%04x' % dev.domain
> try:
> - sdev = PciDevice(dev.domain, b, d, f)
> + sdev = PciDevice(pci_dev)
> except Exception, e:
> #no dom0 drivers bound to sdev
> continue
> @@ -270,13 +262,13 @@ class PciController(DevController):
> )%(sdev.name, dev.name))
> return
>
> - def setupOneDevice(self, domain, bus, slot, func):
> + def setupOneDevice(self, pci_dev):
> """ Attach I/O resources for device to frontend domain
> """
> fe_domid = self.getDomid()
>
> try:
> - dev = PciDevice(domain, bus, slot, func)
> + dev = PciDevice(pci_dev)
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -305,12 +297,11 @@ class PciController(DevController):
>
> if not self.vm.info.is_hvm():
> # Setup IOMMU device assignment
> - pci_str = "0x%x, 0x%x, 0x%x, 0x%x" % (domain, bus, slot, func)
> - bdf = xc.assign_device(fe_domid, pci_str)
> + bdf = xc.assign_device(fe_domid, pci_dict_to_xc_str(pci_dev))
> + pci_str = pci_dict_to_bdf_str(pci_dev)
> if bdf > 0:
> - raise VmError("Failed to assign device to IOMMU (%x:%x.%x)"
> - % (bus, slot, func))
> - log.debug("pci: assign device %x:%x.%x" % (bus, slot, func))
> + raise VmError("Failed to assign device to IOMMU (%s)" %
> pci_str)
> + log.debug("pci: assign device %s" % pci_str)
>
> for (start, size) in dev.ioports:
> log.debug('pci: enabling ioport 0x%x/0x%x'%(start,size))
> @@ -366,23 +357,15 @@ class PciController(DevController):
> def setupDevice(self, config):
> """Setup devices from config
> """
> - pci_str_list = []
> - pci_dev_list = []
> - for pci_config in config.get('devs', []):
> - domain = parse_hex(pci_config.get('domain', 0))
> - bus = parse_hex(pci_config.get('bus', 0))
> - slot = parse_hex(pci_config.get('slot', 0))
> - func = parse_hex(pci_config.get('func', 0))
> - pci_str = '%04x:%02x:%02x.%01x' % (domain, bus, slot, func)
> - pci_str_list = pci_str_list + [pci_str]
> - pci_dev_list = pci_dev_list + [(domain, bus, slot, func)]
> + pci_dev_list = config.get('devs', [])
> + pci_str_list = map(pci_dict_to_bdf_str, pci_dev_list)
>
> if len(pci_str_list) != len(set(pci_str_list)):
> raise VmError('pci: duplicate devices specified in guest
> config?')
>
> - for (domain, bus, slot, func) in pci_dev_list:
> + for pci_dev in pci_dev_list:
> try:
> - dev = PciDevice(domain, bus, slot, func)
> + dev = PciDevice(pci_dev)
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -427,9 +410,7 @@ class PciController(DevController):
> dev.devs_check_driver(devs_str)
> for s in devs_str:
> if not s in pci_str_list:
> - (s_dom, s_bus, s_slot, s_func) =
> parse_pci_name(s)
> - s_pci_str = '0x%x,0x%x,0x%x,0x%x' % \
> - (s_dom, s_bus, s_slot, s_func)
> + s_pci_str =
> pci_dict_to_bdf_str(parse_pci_name(s))
> # s has been assigned to other guest?
> if xc.test_assign_device(0, s_pci_str) != 0:
> err_msg = 'pci: %s must be co-assigned to
> the'+\
> @@ -453,13 +434,13 @@ class PciController(DevController):
> return True
>
>
> - def cleanupOneDevice(self, domain, bus, slot, func):
> + def cleanupOneDevice(self, pci_dev):
> """ Detach I/O resources for device from frontend domain
> """
> fe_domid = self.getDomid()
>
> try:
> - dev = PciDevice(domain, bus, slot, func)
> + dev = PciDevice(pci_dev)
> except Exception, e:
> raise VmError("pci: failed to locate device and "+
> "parse it's resources - "+str(e))
> @@ -476,12 +457,11 @@ class PciController(DevController):
> # DMA transaction, etc
> dev.do_FLR()
>
> - pci_str = "0x%x, 0x%x, 0x%x, 0x%x" % (domain, bus, slot, func)
> - bdf = xc.deassign_device(fe_domid, pci_str)
> + bdf = xc.deassign_device(fe_domid, pci_dict_to_xc_str(pci_dev))
> + pci_str = pci_dict_to_bdf_str(pci_dev)
> if bdf > 0:
> - raise VmError("Failed to deassign device from IOMMU (%x:%x.%x)"
> - % (bus, slot, func))
> - log.debug("pci: Deassign device %x:%x.%x" % (bus, slot, func))
> + raise VmError("Failed to deassign device from IOMMU (%s)" %
> pci_str)
> + log.debug("pci: Deassign device %s" % pci_str)
>
> for (start, size) in dev.ioports:
> log.debug('pci: disabling ioport 0x%x/0x%x'%(start,size))
> @@ -530,15 +510,9 @@ class PciController(DevController):
> state = int(self.readBackend(devid, 'state-%i' % i))
> if state == xenbusState['Closing']:
> # Detach I/O resources.
> - dev = self.readBackend(devid, 'dev-%i' % i)
> - (domain, bus, slotfunc) = dev.split(':')
> - (slot, func) = slotfunc.split('.')
> - domain = parse_hex(domain)
> - bus = parse_hex(bus)
> - slot = parse_hex(slot)
> - func = parse_hex(func)
> + pci_dev = parse_pci_name(self.readBackend(devid, 'dev-%i' %
> i))
> # In HVM case, I/O resources are disabled in ioemu.
> - self.cleanupOneDevice(domain, bus, slot, func)
> + self.cleanupOneDevice(pci_dev)
> # Remove xenstore nodes.
> list = ['dev', 'vdev', 'state', 'uuid', 'vslot']
> if self.readBackend(devid, 'opts-%i' % i) is not None:
>
> --
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
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