dev = PciDevice(pci_dev)
except Exception, e:
raise VmError("pci: failed to locate device and "+
"parse its resources - "+str(e))
if dev.driver!='pciback' and dev.driver!='pci-stub':
raise VmError(("pci: PCI Backend and pci-stub don't own device "+ \
"%s") %(dev.name))
# Need to do FLR here before deassign device in order to terminate
# DMA transaction, etc
dev.do_FLR(self.vm.info.is_hvm(),
xoptions.get_pci_dev_assign_strict_check())
if not self.vm.info.is_stubdom() :
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 (%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))
rc = xc.domain_ioport_permission(domid = fe_domid, first_port = start,
nr_ports = size, allow_access = False)
if rc<0:
raise VmError(('pci: failed to configure I/O ports on device '+
'%s - errno=%d')%(dev.name,rc))
for (start, size) in dev.iomem:
# Convert start/size from bytes to page frame sizes
dev = PciDevice(domain, bus, slot, func)
except Exception, e:
raise VmError("pci: failed to locate device and "+
"parse it's resources - "+str(e))
if dev.driver!='pciback':
raise VmError(("pci: PCI Backend does not own device "+ \
"%s\n"+ \
"See the pciback.hide kernel "+ \
"command-line parameter or\n"+ \
"bind your slot/device to the PCI backend using sysfs" \
)%(dev.name))
if not self.vm.info.is_hvm():
pci_str = "0x%x, 0x%x, 0x%x, 0x%x" % (domain, bus, slot, func)
bdf = xc.deassign_device(fe_domid, pci_str)
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))
for (start, size) in dev.ioports:
log.debug('pci: disabling ioport 0x%x/0x%x'%(start,size))
rc = xc.domain_ioport_permission(domid = fe_domid, first_port = start,
nr_ports = size, allow_access = False)
if rc<0:
raise VmError(('pci: failed to configure I/O ports on device '+
'%s - errno=%d')%(dev.name,rc))
for (start, size) in dev.iomem:
# Convert start/size from bytes to page frame sizes
dev = PciDevice(pci_dev)
except Exception, e:
raise VmError("pci: failed to locate device and " +
"parse its resources - " + str(e))
if dev.driver != 'pciback' and dev.driver != 'pci-stub':
raise VmError(("pci: PCI Backend and pci-stub don't own device "+ \
"%s") %(dev.name))
# Need to do FLR here before deassign device in order to terminate
# DMA transaction, etc
dev.do_FLR(self.vm.info.is_hvm(),
xoptions.get_pci_dev_assign_strict_check())
if not self.vm.info.is_stubdom():
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 (%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))
rc = xc.domain_ioport_permission(domid=fe_domid,
first_port=start,
nr_ports=size,
allow_access=False)
if rc < 0:
raise VmError(
('pci: failed to configure I/O ports on device ' +
dev = PciDevice(domain, bus, slot, func)
except Exception, e:
raise VmError("pci: failed to locate device and " +
"parse it's resources - " + str(e))
if dev.driver != 'pciback':
raise VmError(("pci: PCI Backend does not own device "+ \
"%s\n"+ \
"See the pciback.hide kernel "+ \
"command-line parameter or\n"+ \
"bind your slot/device to the PCI backend using sysfs" \
)%(dev.name))
if not self.vm.info.is_hvm():
pci_str = "0x%x, 0x%x, 0x%x, 0x%x" % (domain, bus, slot, func)
bdf = xc.deassign_device(fe_domid, pci_str)
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))
for (start, size) in dev.ioports:
log.debug('pci: disabling ioport 0x%x/0x%x' % (start, size))
rc = xc.domain_ioport_permission(domid=fe_domid,
first_port=start,
nr_ports=size,
allow_access=False)
if rc < 0:
raise VmError(
('pci: failed to configure I/O ports on device ' +
