3 # Jailhouse, a Linux-based partitioning hypervisor
5 # Copyright (c) Siemens AG, 2014
7 # This work is licensed under the terms of the GNU GPL, version 2. See
8 # the COPYING file in the top-level directory.
10 # This script should help to create a basic jailhouse configuration file.
11 # It needs to be executed on the target machine, where it will gather
12 # information about the system. For more advanced scenarios you will have
13 # to change the generated C-code.
15 from __future__ import print_function
22 from mako.template import Template
27 template_default_dir = datadir + "/jailhouse"
29 template_default_dir = os.path.abspath(os.path.dirname(sys.argv[0]))
33 # pretend to be part of the jailhouse tool
34 sys.argv[0] = sys.argv[0].replace('-', ' ')
36 parser = argparse.ArgumentParser()
37 parser.add_argument('-g', '--generate-collector',
38 help='generate a script to collect input files on '
41 parser.add_argument('-r', '--root',
42 help='gather information in ROOT/, the default is "/" '
43 'which means creating a config for localhost',
47 parser.add_argument('-t', '--template-dir',
48 help='the directory where the templates are located,'
49 'the default is "' + template_default_dir + '"',
50 default=template_default_dir,
54 memargs = [['--mem-inmates', '2M', 'inmate'],
55 ['--mem-hv', '64M', 'hypervisor']]
58 parser.add_argument(entry[0],
59 help='the amount of ' + entry[2] +
60 ' memory, default is "' + entry[1] +
61 '", format "xxx[K|M|G]"',
66 parser.add_argument('file', metavar='FILE',
67 help='name of file to write out',
70 options = parser.parse_args()
80 inputs['files'].add('/proc/iomem')
81 inputs['files'].add('/proc/cpuinfo')
82 inputs['files'].add('/proc/cmdline')
83 inputs['files'].add('/proc/ioports')
84 inputs['files'].add('/sys/bus/pci/devices/*/config')
85 inputs['files'].add('/sys/devices/system/cpu/cpu*/uevent')
86 inputs['files'].add('/sys/firmware/acpi/tables/APIC')
87 inputs['files'].add('/sys/firmware/acpi/tables/MCFG')
89 inputs['files_opt'].add('/sys/class/dmi/id/product_name')
90 inputs['files_opt'].add('/sys/class/dmi/id/sys_vendor')
91 inputs['files_opt'].add('/sys/devices/jailhouse/enabled')
92 # platform specific files
93 inputs['files_intel'].add('/sys/firmware/acpi/tables/DMAR')
94 inputs['files_amd'].add('/sys/firmware/acpi/tables/IVRS')
97 def kmg_multiply(value, kmg):
98 if (kmg == 'K' or kmg == 'k'):
100 if (kmg == 'M' or kmg == 'm'):
101 return 1024**2 * value
102 if (kmg == 'G' or kmg == 'g'):
103 return 1024**3 * value
107 def kmg_multiply_str(str):
108 m = re.match(r'([0-9a-fA-FxX]+)([KMG]?)', str)
110 return kmg_multiply(int(m.group(1)), m.group(2))
111 raise RuntimeError('kmg_multiply_str can not parse input "' + str + '"')
114 def check_input_listed(name, optional=False):
115 set = inputs['files_opt']
116 if optional is False:
117 set = inputs['files']
119 if cpuvendor == 'GenuineIntel':
120 set = set.union(inputs['files_intel'])
121 elif cpuvendor == 'AuthenticAMD':
122 set = set.union(inputs['files_amd'])
125 if fnmatch.fnmatch(name, file):
127 raise RuntimeError('"' + name + '" is not a listed input file')
130 def input_open(name, mode='r', optional=False):
131 check_input_listed(name, optional)
133 f = open(options.root + name, mode)
134 except Exception as e:
136 return open("/dev/null", mode)
141 def input_readline(name, optional=False):
142 f = input_open(name, optional=optional)
148 def input_listdir(dir, wildcards):
150 check_input_listed(os.path.join(dir, w))
151 dirs = os.listdir(options.root + dir)
157 def __init__(self, id, start, len, flags, content, msix_address):
162 self.content = content
163 self.msix_address = msix_address
166 def __eq__(self, other):
167 return self.id == other.id and self.start == other.start and \
168 self.len == other.len and self.flags == other.flags
171 RW = 'JAILHOUSE_PCICAPS_WRITE'
174 def parse_pcicaps(dir):
176 f = input_open(os.path.join(dir, 'config'), 'rb')
178 (status,) = struct.unpack('<H', f.read(2))
179 # capability list supported?
180 if (status & (1 << 4)) == 0:
183 # walk capability list
185 (next,) = struct.unpack('B', f.read(1))
190 (id, next) = struct.unpack('<BB', f.read(2))
191 if id == 0x01: # Power Management
192 # this cap can be handed out completely
194 flags = PCICapability.RW
195 elif id == 0x05: # MSI
196 # access will be moderated by hypervisor
198 (msgctl,) = struct.unpack('<H', f.read(2))
199 if (msgctl & (1 << 7)) != 0: # 64-bit support
201 if (msgctl & (1 << 8)) != 0: # per-vector masking support
203 flags = PCICapability.RW
204 elif id == 0x11: # MSI-X
205 # access will be moderated by hypervisor
207 (table,) = struct.unpack('<xxI', f.read(6))
208 f.seek(0x10 + (table & 7) * 4)
209 (bar,) = struct.unpack('<I', f.read(4))
211 raise RuntimeError('Invalid MSI-X BAR found')
213 bar |= struct.unpack('<I', f.read(4))[0] << 32
214 msix_address = (bar & 0xfffffffffffffff0) + table & 0xfffffff8
215 flags = PCICapability.RW
217 # unknown/unhandled cap, mark its existence
219 flags = PCICapability.RD
221 content = f.read(len - 2)
222 caps.append(PCICapability(id, cap, len, flags, content,
229 def __init__(self, type, domain, bus, dev, fn, caps, path):
239 self.num_caps = len(caps)
240 self.num_msi_vectors = 0
242 self.num_msix_vectors = 0
243 self.msix_region_size = 0
244 self.msix_address = 0
246 if c.id in (0x05, 0x11):
247 msg_ctrl = struct.unpack('<H', c.content[:2])[0]
248 if c.id == 0x05: # MSI
249 self.num_msi_vectors = 1 << ((msg_ctrl >> 1) & 0x7)
250 self.msi_64bits = (msg_ctrl >> 7) & 1
252 vectors = (msg_ctrl & 0x7ff) + 1
253 self.num_msix_vectors = vectors
254 self.msix_region_size = (vectors * 16 + 0xfff) & 0xf000
255 self.msix_address = c.msix_address
258 return 'PCIDevice: %02x:%02x.%x' % (self.bus, self.dev, self.fn)
261 return self.bus << 8 | self.dev << 3 | self.fn
264 def parse_pcidevice_sysfsdir(basedir, dir):
265 dpath = os.path.join(basedir, dir)
266 f = input_open(os.path.join(dpath, 'config'), 'rb')
268 (classcode,) = struct.unpack('<H', f.read(2))
270 if classcode == 0x0604:
271 type = 'JAILHOUSE_PCI_TYPE_BRIDGE'
273 type = 'JAILHOUSE_PCI_TYPE_DEVICE'
275 domain = int(a[0], 16)
278 caps = PCICapability.parse_pcicaps(dpath)
279 return PCIDevice(type, domain, bus, int(df[0], 16), int(df[1], 16),
283 class PCIPCIBridge(PCIDevice):
285 def get_2nd_busses(dev):
286 assert dev.type == 'JAILHOUSE_PCI_TYPE_BRIDGE'
287 f = input_open(os.path.join(dev.path, 'config'), 'rb')
289 (secondbus, subordinate) = struct.unpack('<BB', f.read(2))
291 return (secondbus, subordinate)
295 def __init__(self, start, stop, typestr, comments=None):
298 self.typestr = typestr
302 self.comments = comments
305 return 'MemRegion: %08x-%08x : %s' % \
306 (self.start, self.stop, self.typestr)
309 # round up to full PAGE_SIZE
310 return int((self.stop - self.start + 0xfff) / 0x1000) * 0x1000
312 def flagstr(self, p=''):
314 self.typestr == 'System RAM' or
315 self.typestr == 'Kernel' or
316 self.typestr == 'RAM buffer' or
317 self.typestr == 'ACPI DMAR RMRR' or
318 self.typestr == 'ACPI IVRS'
320 s = 'JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |\n'
321 s += p + '\t\tJAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA'
323 return 'JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE'
327 def __init__(self, id, address, gsi_base, iommu=0, bdf=0):
329 self.address = address
330 self.gsi_base = gsi_base
335 return 'IOAPIC %d, GSI base %d' % (self.id, self.gsi_base)
337 def irqchip_id(self):
338 # encode the IOMMU number into the irqchip ID
339 return (self.iommu << 16) | self.bdf
342 class IOMemRegionTree:
343 def __init__(self, region, level):
352 s = (' ' * (self.level - 1)) + str(self.region)
353 if self.parent and self.parent.region:
354 s += ' --> ' + self.parent.region.typestr
356 for c in self.children:
360 def regions_split_by_kernel(self):
361 kernel = [x for x in self.children if
362 x.region.typestr.startswith('Kernel ')]
364 if (len(kernel) == 0):
370 kernel_start = kernel[0].region.start
371 kernel_stop = kernel[len(kernel) - 1].region.stop
373 # align this for 16M, but only if we have enough space
374 kernel_stop = (kernel_stop & ~0xFFFFFF) + 0xFFFFFF
375 if (kernel_stop > r.stop):
381 # before Kernel if any
382 if (r.start < kernel_start):
383 before_kernel = MemRegion(r.start, kernel_start - 1, s)
385 kernel_region = MemRegion(kernel_start, kernel_stop, "Kernel")
387 # after Kernel if any
388 if (r.stop > kernel_stop):
389 after_kernel = MemRegion(kernel_stop + 1, r.stop, s)
391 return [before_kernel, kernel_region, after_kernel]
394 def parse_iomem_line(line):
395 a = line.split(':', 1)
396 level = int(a[0].count(' ') / 2) + 1
397 region = a[0].split('-', 1)
399 return level, MemRegion(int(region[0], 16), int(region[1], 16), a[1])
402 def parse_iomem_file():
403 root = IOMemRegionTree(None, 0)
404 f = input_open('/proc/iomem')
408 (level, r) = IOMemRegionTree.parse_iomem_line(line)
409 t = IOMemRegionTree(r, level)
410 if (t.level > lastlevel):
412 if (t.level == lastlevel):
413 t.parent = lastnode.parent
414 if (t.level < lastlevel):
416 while(t.level < p.level):
420 t.parent.children.append(t)
427 # find HPET regions in tree
429 def find_hpet_regions(tree):
432 for tree in tree.children:
436 if (s.find('HPET') >= 0):
439 # if the tree continues recurse further down ...
440 if (len(tree.children) > 0):
441 regions.extend(IOMemRegionTree.find_hpet_regions(tree))
445 # recurse down the tree
447 def parse_iomem_tree(tree):
450 for tree in tree.children:
454 # System RAM on the first level will be added completely,
455 # if they don't contain the kernel itself, if they do,
457 if (tree.level == 1 and s == 'System RAM'):
458 regions.extend(tree.regions_split_by_kernel())
461 # blacklisted on all levels
463 (s.find('PCI MMCONFIG') >= 0) or
464 (s.find('APIC') >= 0) or # covers both APIC and IOAPIC
465 (s.find('dmar') >= 0)
469 # generally blacklisted, unless we find an HPET behind it
470 if (s == 'reserved'):
471 regions.extend(IOMemRegionTree.find_hpet_regions(tree))
474 # if the tree continues recurse further down ...
475 if (len(tree.children) > 0):
476 regions.extend(IOMemRegionTree.parse_iomem_tree(tree))
479 # add all remaining leaves
485 def parse_iomem(pcidevices):
486 regions = IOMemRegionTree.parse_iomem_tree(
487 IOMemRegionTree.parse_iomem_file())
489 # filter the list for MSI-X pages
493 if d.msix_address >= r.start and d.msix_address <= r.stop:
494 if d.msix_address > r.start:
495 head_r = MemRegion(r.start, d.msix_address - 1,
496 r.typestr, r.comments)
498 if d.msix_address + d.msix_region_size < r.stop:
499 tail_r = MemRegion(d.msix_address + d.msix_region_size,
500 r.stop, r.typestr, r.comments)
507 # newer Linux kernels will report the first page as reserved
508 # it is needed for CPU init so include it anyways
509 if (ret[0].typestr == 'System RAM' and ret[0].start == 0x1000):
515 def parse_pcidevices():
518 basedir = '/sys/bus/pci/devices'
519 list = input_listdir(basedir, ['*/config'])
521 d = PCIDevice.parse_pcidevice_sysfsdir(basedir, dir)
525 # look for duplicate capability patterns
527 if d2.caps == d.caps:
528 # reused existing capability list, but record all users
529 d2.caps[0].comments.append(str(d))
530 d.caps_start = d2.caps_start
534 d.caps[0].comments.append(str(d))
535 d.caps_start = len(caps)
538 return (devices, caps)
541 def parse_kernel_cmdline():
542 line = input_readline('/proc/cmdline')
543 m = re.match(r'.*memmap=([0-9a-fA-FxX]+)([KMG]?)\$'
544 '([0-9a-fA-FxX]+)([KMG]?).*',
547 size = kmg_multiply(int(m.group(1), 0), m.group(2))
548 start = kmg_multiply(int(m.group(3), 0), m.group(4))
553 def alloc_mem(regions, size):
554 mem = [0x3b000000, size]
557 r.typestr == 'System RAM' and
558 r.start <= mem[0] and
559 r.stop + 1 >= mem[0] + mem[1]
562 head_r = MemRegion(r.start, mem[0] - 1, r.typestr, r.comments)
563 regions.insert(regions.index(r), head_r)
564 if r.stop + 1 > mem[0] + mem[1]:
565 tail_r = MemRegion(mem[0] + mem[1], r.stop, r.typestr,
567 regions.insert(regions.index(r), tail_r)
570 for r in reversed(regions):
571 if (r.typestr == 'System RAM' and r.size() >= mem[1]):
575 raise RuntimeError('failed to allocate memory')
579 list = input_listdir('/sys/devices/system/cpu', ['cpu*/uevent'])
582 if re.match(r'cpu[0-9]+', f):
588 f = input_open('/sys/firmware/acpi/tables/APIC', 'rb')
589 signature = f.read(4)
590 if signature != b'APIC':
591 raise RuntimeError('MADT: incorrect input file format %s' % signature)
592 (length,) = struct.unpack('<I', f.read(4))
599 (struct_type, struct_len) = struct.unpack('<BB', f.read(2))
604 (id, address, gsi_base) = struct.unpack('<BxII', f.read(10))
606 ioapics.append(IOAPIC(id, address, gsi_base))
608 f.seek(struct_len - offset, os.SEEK_CUR)
614 def parse_dmar_devscope(f):
615 (scope_type, scope_len, id, bus, dev, fn) = \
616 struct.unpack('<BBxxBBBB', f.read(8))
618 raise RuntimeError('Unsupported DMAR Device Scope Structure')
619 return (scope_type, scope_len, id, bus, dev, fn)
622 # parsing of DMAR ACPI Table
623 # see Intel VT-d Spec chapter 8
624 def parse_dmar(pcidevices, ioapics):
625 f = input_open('/sys/firmware/acpi/tables/DMAR', 'rb')
626 signature = f.read(4)
627 if signature != b'DMAR':
628 raise RuntimeError('DMAR: incorrect input file format %s' % signature)
629 (length,) = struct.unpack('<I', f.read(4))
637 (struct_type, struct_len) = struct.unpack('<HH', f.read(4))
641 # DMA Remapping Hardware Unit Definition
643 (flags, segment, base) = struct.unpack('<BxHQ', f.read(12))
645 raise RuntimeError('We do not support multiple PCI segments')
647 raise RuntimeError('Too many DMAR units. '
648 'Raise JAILHOUSE_MAX_IOMMU_UNITS.')
653 d.iommu = len(units) - 1
654 offset += 16 - offset
655 while offset < struct_len:
656 (scope_type, scope_len, id, bus, dev, fn) =\
657 parse_dmar_devscope(f)
658 # PCI Endpoint Device
660 assert not (flags & 1)
662 if d.bus == bus and d.dev == dev and d.fn == fn:
663 d.iommu = len(units) - 1
666 elif scope_type == 2:
667 assert not (flags & 1)
669 if d.bus == bus and d.dev == dev and d.fn == fn:
670 (secondbus, subordinate) = \
671 PCIPCIBridge.get_2nd_busses(d)
672 for d2 in pcidevices:
674 d2.bus >= secondbus and
675 d2.bus <= subordinate
677 d2.iommu = len(units) - 1
680 elif scope_type == 3:
681 ioapic = next(chip for chip in ioapics if chip.id == id)
682 bdf = (bus << 8) | (dev << 3) | fn
685 raise RuntimeError('IOAPICs with identical BDF')
687 ioapic.dmar_unit = len(units) - 1
690 # Reserved Memory Region Reporting Structure
692 f.seek(8 - offset, os.SEEK_CUR)
694 (base, limit) = struct.unpack('<QQ', f.read(16))
698 while offset < struct_len:
699 (scope_type, scope_len, id, bus, dev, fn) =\
700 parse_dmar_devscope(f)
702 comments.append('PCI device: %02x:%02x.%x' %
705 comments.append('DMAR parser could not decode device path')
708 reg = MemRegion(base, limit, 'ACPI DMAR RMRR', comments)
711 f.seek(struct_len - offset, os.SEEK_CUR)
718 'PCI device %02x:%02x.%x outside the scope of an '
719 'IOMMU' % (d.bus, d.dev, d.fn))
721 return units, regions
724 def parse_ivrs(pcidevices, ioapics):
726 bus, dev, fun = (bdf >> 8) & 0xff, (bdf >> 3) & 0x1f, bdf & 0x7
727 return '%02x:%02x.%x' % (bus, dev, fun)
729 f = input_open('/sys/firmware/acpi/tables/IVRS', 'rb')
730 signature = f.read(4)
731 if signature != b'IVRS':
732 raise RuntimeError('IVRS: incorrect input file format %s' % signature)
734 (length, revision) = struct.unpack('<IB', f.read(5))
736 raise RuntimeError('IVRS: unsupported Revision %02x' % revision)
738 f.seek(48, os.SEEK_SET)
743 # BDF of devices that are permitted outside IOMMU: root complex
744 iommu_skiplist = set([0x0])
746 (block_type, block_length) = struct.unpack('<BxH', f.read(4))
747 if block_type in [0x10, 0x11]:
749 (iommu_id, base_addr, pci_seg) = \
750 struct.unpack('<HxxQH', f.read(14))
751 length -= block_length
754 # IOMMU EFR image and reserved area
755 skip_bytes = 6 if block_type == 0x10 else 22
756 f.seek(skip_bytes, os.SEEK_CUR)
757 block_length -= skip_bytes
760 raise RuntimeError('We do not support multiple PCI segments')
763 raise RuntimeError('Too many IOMMU units. '
764 'Raise JAILHOUSE_MAX_IOMMU_UNITS.')
766 # We shouldn't map IOMMU to the cells
767 for i, d in enumerate(pcidevices):
768 if d.bdf() == iommu_id:
771 units.append(base_addr)
773 bdf_start_range = None
774 while block_length > 0:
775 (entry_type, device_id, dte_setting) = struct.unpack(
779 if entry_type == 0x01:
782 d.iommu = len(units) - 1
783 elif entry_type == 0x02:
786 if d.bdf() == device_id:
787 d.iommu = len(units) - 1
788 elif entry_type == 0x03:
790 bdf_start_range = device_id
791 elif entry_type == 0x04:
793 if bdf_start_range is None:
796 if d.bdf() >= bdf_start_range and d.bdf() <= device_id:
797 d.iommu = len(units) - 1
798 bdf_start_range = None
799 elif entry_type == 0x42:
801 (device_id_b,) = struct.unpack('<xHx', f.read(4))
804 if d.bdf() == device_id_b:
805 d.iommu = len(units) - 1
806 elif entry_type == 0x43:
807 # Alias start of range
808 (device_id_b,) = struct.unpack('<xHx', f.read(4))
810 bdf_start_range = device_id_b
811 elif entry_type == 0x48:
813 (handle, device_id_b, variety) = struct.unpack(
816 if variety == 0x01: # IOAPIC
818 if chip.id == handle:
820 chip.iommu = len(units) - 1
822 # Reserved or ignored entries
823 if entry_type >= 0x40:
824 f.seek(4, os.SEEK_CUR)
827 elif type in [0x20, 0x21, 0x22]:
829 (block_type, block_flags, block_length,
830 device_id, aux_data, mem_addr, mem_len) = struct.unpack(
832 length -= block_length
835 bdf_str = format_bdf(device_id)
837 'WARNING: Jailhouse doesn\'t support configurable '
838 '(eg. read-only) device memory. Device %s may not '
839 'work properly, especially in non-root cell.' % bdf_str)
841 if block_type == 0x20:
844 elif block_type == 0x21:
846 comment = 'PCI Device: %s' % format_bdf(device_id)
847 elif block_type == 0x22:
849 comment = 'PCI Device: %s - %s' % (
850 format_bdf(device_id), format_bdf(aux_data))
853 print('WARNING: Jailhouse doesn\'t support per-device memory '
854 'regions. The memory at 0x%x will be mapped accessible '
855 'to all devices.' % mem_addr)
857 regions.append(MemRegion(mem_addr, mem_len, 'ACPI IVRS', comment))
860 'You board uses IVRS Rev. 2 feature Jailhouse doesn\'t '
861 'support yet. Please report this to '
862 'jailhouse-dev@googlegroups.com.')
865 'WARNING: Skipping unknown IVRS '
866 'block type 0x%02x' % block_type)
869 if d.bdf() not in iommu_skiplist and d.iommu is None:
871 'PCI device %02x:%02x.%x outside the scope of an '
872 'IOMMU' % (d.bus, d.dev, d.fn))
875 return units, regions
880 f = input_open('/proc/ioports')
882 if line.endswith('ACPI PM_TMR\n'):
883 pm_timer_base = int(line.split('-')[0], 16)
890 def __init__(self, base, end_bus):
892 self.end_bus = end_bus
896 f = input_open('/sys/firmware/acpi/tables/MCFG', 'rb')
897 signature = f.read(4)
898 if signature != b'MCFG':
899 raise RuntimeError('MCFG: incorrect input file format %s' %
901 (length,) = struct.unpack('<I', f.read(4))
903 raise RuntimeError('Multiple MMCONFIG regions found! '
904 'This is not supported')
906 (base, segment, start_bus, end_bus) = \
907 struct.unpack('<QHBB', f.read(12))
908 if segment != 0 or start_bus != 0:
909 raise RuntimeError('Invalid MCFG structure found')
910 return MMConfig(base, end_bus)
913 def get_cpu_vendor():
915 if cpuvendor is not None:
917 with input_open('/proc/cpuinfo', 'r') as f:
921 key, value = line.split(':')
922 if key.strip() == 'vendor_id':
923 cpuvendor = value.strip()
927 if options.generate_collector:
928 f = open(options.file, 'w')
929 filelist = ' '.join(inputs['files'])
930 filelist_opt = ' '.join(inputs['files_opt'])
931 filelist_intel = ' '.join(inputs['files_intel'])
932 filelist_amd = ' '.join(inputs['files_amd'])
934 tmpl = Template(filename=os.path.join(options.template_dir,
935 'jailhouse-config-collect.tmpl'))
936 f.write(tmpl.render(filelist=filelist, filelist_opt=filelist_opt,
937 filelist_intel=filelist_intel, filelist_amd=filelist_amd))
941 if ((options.root is '/') and (os.geteuid() is not 0)):
942 print('ERROR: You have to be root to work on "/"!', file=sys.stderr)
945 jh_enabled = input_readline('/sys/devices/jailhouse/enabled', True).rstrip()
946 if jh_enabled == '1':
947 print('ERROR: Jailhouse was enabled when collecting input files! '
948 'Disable jailhouse and try again.',
952 (pcidevices, pcicaps) = parse_pcidevices()
954 product = [input_readline('/sys/class/dmi/id/sys_vendor',
956 input_readline('/sys/class/dmi/id/product_name',
960 inmatemem = kmg_multiply_str(options.mem_inmates)
961 hvmem = [0, kmg_multiply_str(options.mem_hv)]
963 regions = parse_iomem(pcidevices)
964 ourmem = parse_kernel_cmdline()
965 total = hvmem[1] + inmatemem
967 mmconfig = MMConfig.parse()
969 ioapics = parse_madt()
971 vendor = get_cpu_vendor()
972 if vendor == 'GenuineIntel':
973 (iommu_units, extra_memregs) = parse_dmar(pcidevices, ioapics)
975 (iommu_units, extra_memregs) = parse_ivrs(pcidevices, ioapics)
976 regions += extra_memregs
978 # kernel does not have memmap region, pick one
980 ourmem = alloc_mem(regions, total)
981 elif (total > ourmem[1]):
982 raise RuntimeError('Your memmap reservation is too small you need >="' +
987 inmatereg = MemRegion(ourmem[0] + hvmem[1],
988 ourmem[0] + hvmem[1] + inmatemem - 1,
989 'JAILHOUSE Inmate Memory')
990 regions.append(inmatereg)
992 cpucount = count_cpus()
994 pm_timer_base = parse_ioports()
997 f = open(options.file, 'w')
998 tmpl = Template(filename=os.path.join(options.template_dir,
999 'root-cell-config.c.tmpl'))
1003 'argstr': ' '.join(sys.argv),
1006 'pcidevices': pcidevices,
1008 'cpucount': cpucount,
1009 'irqchips': ioapics,
1010 'pm_timer_base': pm_timer_base,
1011 'mmconfig': mmconfig,
1012 'iommu_units': iommu_units
1015 f.write(tmpl.render(**kwargs))