summaryrefslogtreecommitdiffstats
path: root/patches/opnfv-fuel/0001-salt-formulas-Add-enable-armband-formula.patch
blob: cc8599abe4375181309d92e1c602e03dfb795e73 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
: Copyright (c) 2017 Enea AB and others.
:
: All rights reserved. This program and the accompanying materials
: are made available under the terms of the Apache License, Version 2.0
: which accompanies this distribution, and is available at
: http://www.apache.org/licenses/LICENSE-2.0
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
From: Guillermo Herrero <Guillermo.Herrero@enea.com>
Date: Tue, 25 Jul 2017 00:58:32 +0200
Subject: [PATCH] salt-formulas: Add & enable armband formula

- prereq: install qemu-efi;
- prereq: install vgabios;
- prereq: fix missing link for vgabios binary blob;
- nova patch: Support qemu >= 2.10 (backport from [1]);
- nova patch: Add video type virtio for AArch64 (backport from [2]);
- nova patch: libvirt driver: Add ttyAMA0 by default on AArch64;
- nova patch: libvirt driver: AArch64: ACPI depends on AAVMF;
- nova conf: cpu_model=cortex-a57 (only for virtual deploys);
- nova conf: virt_type=qemu (only for virtual deploys);
- nova conf: pointer_model=ps2mouse since AArch64 has no USB tablet;

[1] https://github.com/openstack/nova/commit/8075797
[2] https://github.com/openstack/nova/commit/f0f0953

Signed-off-by: Guillermo Herrero <Guillermo.Herrero@enea.com>
Signed-off-by: Charalampos Kominos <Charalampos.Kominos@enea.com>
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
---
 mcp/config/states/openstack                        |   2 +
 mcp/config/states/openstack_ha                     |   1 +
 mcp/config/states/virtual_control_plane            |   1 +
 .../armband/files/nova-libvirt-aarch64-rollup.diff | 317 +++++++++++++++++++++
 mcp/salt-formulas/armband/init.sls                 |   7 +
 mcp/salt-formulas/armband/nova_config.sls          |  30 ++
 mcp/salt-formulas/armband/nova_libvirt.sls         |   7 +
 mcp/salt-formulas/armband/qemu_efi.sls             |   2 +
 mcp/salt-formulas/armband/vgabios.sls              |   7 +
 9 files changed, 374 insertions(+)
 create mode 100644 mcp/salt-formulas/armband/files/nova-libvirt-aarch64-rollup.diff
 create mode 100644 mcp/salt-formulas/armband/init.sls
 create mode 100644 mcp/salt-formulas/armband/nova_config.sls
 create mode 100644 mcp/salt-formulas/armband/nova_libvirt.sls
 create mode 100644 mcp/salt-formulas/armband/qemu_efi.sls
 create mode 100644 mcp/salt-formulas/armband/vgabios.sls

diff --git a/mcp/config/states/openstack b/mcp/config/states/openstack
index 19cd417..73983d2 100755
--- a/mcp/config/states/openstack
+++ b/mcp/config/states/openstack
@@ -43,3 +43,5 @@ salt -I 'ceilometer:server' state.sls ceilometer
 salt -I 'ceilometer:agent' state.sls ceilometer

 salt -I 'horizon:server' state.sls horizon
+
+salt -I 'nova:compute' state.sls armband || true
diff --git a/mcp/config/states/openstack_ha b/mcp/config/states/openstack_ha
index e1fdf73..e1f705c 100755
--- a/mcp/config/states/openstack_ha
+++ b/mcp/config/states/openstack_ha
@@ -52,6 +52,7 @@ salt -I 'neutron:server' state.sls neutron -b 1
 salt -I 'neutron:gateway' state.sls neutron.gateway

 salt -I 'nova:compute' state.sls nova
+salt -I 'nova:compute' state.sls armband || true

 salt -I 'mongodb:server' state.sls mongodb || true
 wait_for 90 "salt -C 'I@mongodb:server and *01*' cmd.run 'mongo localhost:27017/admin'"
diff --git a/mcp/config/states/virtual_control_plane b/mcp/config/states/virtual_control_plane
index 43d1520..88e7080 100755
--- a/mcp/config/states/virtual_control_plane
+++ b/mcp/config/states/virtual_control_plane
@@ -34,6 +34,7 @@ wait_for 90 "! salt -C 'kvm* or cmp*' test.ping | " \

 salt -C '* and not cfg01* and not mas01*' state.apply linux,ntp

+salt -C 'kvm*' state.sls armband || true
 wait_for 5 "salt -C 'kvm*' state.sls libvirt"

 salt -C '* and not cfg01* and not mas01*' state.apply salt
diff --git a/mcp/salt-formulas/armband/files/nova-libvirt-aarch64-rollup.diff b/mcp/salt-formulas/armband/files/nova-libvirt-aarch64-rollup.diff
new file mode 100644
index 0000000..4d7f04c
--- /dev/null
+++ b/mcp/salt-formulas/armband/files/nova-libvirt-aarch64-rollup.diff
@@ -0,0 +1,317 @@
+From 807579755c4a116309eca5b2bcdbab9d1f393bab Mon Sep 17 00:00:00 2001
+From: Matt Riedemann <mriedem.os@gmail.com>
+Date: Wed, 20 Sep 2017 10:44:11 -0400
+Subject: [PATCH] Support qemu >= 2.10
+
+Qemu 2.10 added the requirement of a --force-share flag to qemu-img
+info when reading information about a disk that is in use by a
+guest. We do this a lot in Nova for operations like gathering
+information before live migration.
+
+Up until this point all qemu/libvirt version matching has been solely
+inside the libvirt driver, however all the image manip code was moved
+out to nova.virt.images. We need the version of QEMU available there.
+
+This does it by initializing that version on driver init host. The net
+effect is also that broken libvirt connections are figured out
+earlier, as there is an active probe for this value.
+
+Co-Authored-By: Sean Dague <sean@dague.net>
+
+[ Alexandru.Avadanii@enea.com ]
+Minor patch adjustment to apply cleanly on Newton without further
+backporting.
+
+Change-Id: Iae2962bb86100f03fd3ad9aac3767da876291e74
+Closes-Bug: #1718295
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ nova/test.py                                |  3 +++
+ nova/tests/unit/virt/libvirt/test_driver.py | 20 ++++++++++++++++++--
+ nova/tests/unit/virt/libvirt/test_utils.py  | 25 +++++++++++++++++++++++++
+ nova/virt/images.py                         | 10 ++++++++++
+ nova/virt/libvirt/driver.py                 | 14 +++++++++-----
+ 5 files changed, 65 insertions(+), 7 deletions(-)
+
+diff --git a/nova/test.py b/nova/test.py
+index f0e6953b965..9b9ea9507e8 100644
+--- a/nova/test.py
++++ b/nova/test.py
+@@ -61,6 +61,7 @@
+ from nova.tests.unit import policy_fixture
+ from nova.tests import uuidsentinel as uuids
+ from nova import utils
++from nova.virt import images
+
+
+ CONF = cfg.CONF
+@@ -303,6 +304,8 @@ def setUp(self):
+         # nova.utils._IS_NEUTRON.  We set it to None to avoid any
+         # caching of that value.
+         utils._IS_NEUTRON = None
++        # Reset the global QEMU version flag.
++        images.QEMU_VERSION = None
+
+         mox_fixture = self.useFixture(moxstubout.MoxStubout())
+         self.mox = mox_fixture.mox
+diff --git a/nova/tests/unit/virt/libvirt/test_driver.py b/nova/tests/unit/virt/libvirt/test_driver.py
+index fe54dc75e7f..4e9f2bd250e 100644
+--- a/nova/tests/unit/virt/libvirt/test_driver.py
++++ b/nova/tests/unit/virt/libvirt/test_driver.py
+@@ -986,6 +986,23 @@ def test_next_min_qemu_version_ok(self, mock_warning, mock_get_libversion):
+                 break
+         self.assertFalse(version_arg_found)
+
++    # NOTE(sdague): python2.7 and python3.5 have different behaviors
++    # when it comes to comparing against the sentinel, so
++    # has_min_version is needed to pass python3.5.
++    @mock.patch.object(nova.virt.libvirt.host.Host, "has_min_version",
++                       return_value=True)
++    @mock.patch.object(fakelibvirt.Connection, 'getVersion',
++                       return_value=mock.sentinel.qemu_version)
++    def test_qemu_image_version(self, mock_get_libversion, min_ver):
++        """Test that init_host sets qemu image version
++
++        A sentinel is used here so that we aren't chasing this value
++        against minimums that get raised over time.
++        """
++        drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
++        drvr.init_host("dummyhost")
++        self.assertEqual(images.QEMU_VERSION, mock.sentinel.qemu_version)
++
+     @mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
+                        return_value=versionutils.convert_version_to_int(
+                            libvirt_driver.MIN_LIBVIRT_OTHER_ARCH.get(
+@@ -11605,9 +11622,8 @@ def test_command_with_broken_connection(self):
+                               return_value=service_mock),
+             mock.patch.object(host.Host, "get_capabilities")):
+
+-            drvr.init_host("wibble")
+             self.assertRaises(exception.HypervisorUnavailable,
+-                              drvr.get_num_instances)
++                              drvr.init_host, ("wibble",))
+             self.assertTrue(service_mock.disabled)
+
+     def test_service_resume_after_broken_connection(self):
+diff --git a/nova/tests/unit/virt/libvirt/test_utils.py b/nova/tests/unit/virt/libvirt/test_utils.py
+index 646a72c8599..49945a3cd3b 100644
+--- a/nova/tests/unit/virt/libvirt/test_utils.py
++++ b/nova/tests/unit/virt/libvirt/test_utils.py
+@@ -173,6 +173,31 @@ def test_qemu_info_canon(self, mock_execute, mock_exists):
+
+     @mock.patch('os.path.exists', return_value=True)
+     @mock.patch('nova.utils.execute')
++    def test_qemu_info_canon_qemu_2_10(self, mock_execute, mock_exists):
++        images.QEMU_VERSION = images.QEMU_VERSION_REQ_SHARED
++        path = "disk.config"
++        example_output = """image: disk.config
++file format: raw
++virtual size: 64M (67108864 bytes)
++cluster_size: 65536
++disk size: 96K
++blah BLAH: bb
++"""
++        mock_execute.return_value = (example_output, '')
++        image_info = images.qemu_img_info(path)
++        mock_execute.assert_called_once_with('env', 'LC_ALL=C', 'LANG=C',
++                                             'qemu-img', 'info', path,
++                                             '--force-share',
++                                             prlimit=images.QEMU_IMG_LIMITS)
++        mock_exists.assert_called_once_with(path)
++        self.assertEqual('disk.config', image_info.image)
++        self.assertEqual('raw', image_info.file_format)
++        self.assertEqual(67108864, image_info.virtual_size)
++        self.assertEqual(98304, image_info.disk_size)
++        self.assertEqual(65536, image_info.cluster_size)
++
++    @mock.patch('os.path.exists', return_value=True)
++    @mock.patch('nova.utils.execute')
+     def test_qemu_info_canon2(self, mock_execute, mock_exists):
+         path = "disk.config"
+         example_output = """image: disk.config
+diff --git a/nova/virt/images.py b/nova/virt/images.py
+index dae6bc7ef52..be2a9d9e062 100644
+--- a/nova/virt/images.py
++++ b/nova/virt/images.py
+@@ -19,6 +19,7 @@
+ Handling of VM disk images.
+ """
+
++import operator
+ import os
+
+ from oslo_concurrency import processutils
+@@ -42,6 +43,11 @@
+     cpu_time=8,
+     address_space=1 * units.Gi)
+
++# This is set by the libvirt driver on startup. The version is used to
++# determine what flags need to be set on the command line.
++QEMU_VERSION = None
++QEMU_VERSION_REQ_SHARED = 2010000
++
+
+ def qemu_img_info(path, format=None):
+     """Return an object containing the parsed output from qemu-img info."""
+@@ -60,6 +66,10 @@ def qemu_img_info(path, format=None):
+         cmd = ('env', 'LC_ALL=C', 'LANG=C', 'qemu-img', 'info', path)
+         if format is not None:
+             cmd = cmd + ('-f', format)
++        # Check to see if the qemu version is >= 2.10 because if so, we need
++        # to add the --force-share flag.
++        if QEMU_VERSION and operator.ge(QEMU_VERSION, QEMU_VERSION_REQ_SHARED):
++            cmd = cmd + ('--force-share',)
+         out, err = utils.execute(*cmd, prlimit=QEMU_IMG_LIMITS)
+     except processutils.ProcessExecutionError as exp:
+         # this means we hit prlimits, make the exception more specific
+diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
+index 82dc2b99f6a..8d4eb90ecf5 100644
+--- a/nova/virt/libvirt/driver.py
++++ b/nova/virt/libvirt/driver.py
+@@ -481,11 +481,15 @@ def init_host(self, host):
+                 _('Nova requires libvirt version %s or greater.') %
+                 self._version_to_string(MIN_LIBVIRT_VERSION))
+
+-        if (CONF.libvirt.virt_type in ("qemu", "kvm") and
+-            not self._host.has_min_version(hv_ver=MIN_QEMU_VERSION)):
+-            raise exception.InternalError(
+-                _('Nova requires QEMU version %s or greater.') %
+-                self._version_to_string(MIN_QEMU_VERSION))
++        if CONF.libvirt.virt_type in ("qemu", "kvm"):
++            if self._host.has_min_version(hv_ver=MIN_QEMU_VERSION):
++                # "qemu-img info" calls are version dependent, so we need to
++                # store the version in the images module.
++                images.QEMU_VERSION = self._host.get_connection().getVersion()
++            else:
++                raise exception.InternalError(
++                    _('Nova requires QEMU version %s or greater.') %
++                    self._version_to_string(MIN_QEMU_VERSION))
+
+         if CONF.libvirt.virt_type == 'parallels':
+             if not self._host.has_min_version(hv_ver=MIN_VIRTUOZZO_VERSION):
+--
+
+From: Stanislaw Kardach <stanislaw.kardach@cavium.com>
+Date: Tue, 22 Mar 2016 12:05:09 +0100
+Subject: [PATCH] nova: Update console defaults for armv7, aarch64
+
+Nova hardcodes default options for serial console.
+For armv7 and aarch64 direct kernel boot, adding console=ttyAMA0 is
+a nice UX addition.
+
+Signed-off-by: Stanislaw Kardach <stanislaw.kardach@cavium.com>
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Signed-off-by: Guillermo Herrero <Guillermo.Herrero@enea.com>
+
+---
+
+diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
+--- a/nova/virt/libvirt/driver.py
++++ b/nova/virt/libvirt/driver.py
+@@ -4179,7 +4179,12 @@ class LibvirtDriver(driver.ComputeDriver):
+         if virt_type == "xen":
+             guest.os_cmdline = "ro root=%s" % root_device_name
+         else:
++            guestarch = libvirt_utils.get_arch(image_meta)
+             guest.os_cmdline = ("root=%s %s" % (root_device_name, CONSOLE))
++            if guestarch in (fields.Architecture.ARMV7,
++                             fields.Architecture.AARCH64):
++                # NOTE(armband): ARM v7/v8 use PL011 drv, add ttyAMA0 console
++                guest.os_cmdline += " console=ttyAMA0"
+             if virt_type == "qemu":
+                 guest.os_cmdline += " no_timer_check"
+         if instance.ramdisk_id:
+--
+
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Thu, 24 Aug 2017 10:57:28 +0200
+Subject: [PATCH] libvirt: AArch64: ACPI depends on AAVMF
+
+On AArch64, ACPI should be added to domain XML only if guest UEFI
+(AAVMF) is also used.
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Signed-off-by: Ciprian Barbu <ciprian.barbu@enea.com>
+
+---
+
+diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
+--- a/nova/virt/libvirt/driver.py
++++ b/nova/virt/libvirt/driver.py
+@@ -4255,7 +4255,7 @@
+             tmhyperv.present = True
+             clk.add_timer(tmhyperv)
+
+-    def _set_features(self, guest, os_type, caps, virt_type):
++    def _set_features(self, guest, os_type, image_meta, caps, virt_type):
+         if virt_type == "xen":
+             # PAE only makes sense in X86
+             if caps.host.cpu.arch in (fields.Architecture.I686,
+@@ -4264,7 +4264,10 @@
+
+         if (virt_type not in ("lxc", "uml", "parallels", "xen") or
+                 (virt_type == "xen" and guest.os_type == fields.VMMode.HVM)):
+-            guest.features.append(vconfig.LibvirtConfigGuestFeatureACPI())
++            guestarch = libvirt_utils.get_arch(image_meta)
++            if (guestarch not in (fields.Architecture.ARMV7, fields.Architecture.AARCH64) or
++                image_meta.properties.get('hw_firmware_type') == 'uefi'):
++                    guest.features.append(vconfig.LibvirtConfigGuestFeatureACPI())
+             guest.features.append(vconfig.LibvirtConfigGuestFeatureAPIC())
+
+         if (virt_type in ("qemu", "kvm") and
+@@ -4799,7 +4802,7 @@
+             self._conf_non_lxc_uml(virt_type, guest, root_device_name, rescue,
+                     instance, inst_path, image_meta, disk_info)
+
+-        self._set_features(guest, instance.os_type, caps, virt_type)
++        self._set_features(guest, instance.os_type, image_meta, caps, virt_type)
+         self._set_clock(guest, instance.os_type, image_meta, virt_type)
+
+         storage_configs = self._get_guest_storage_config(
+--
+
+From f0f09530ee9169eb29bc28d4f118676d7dc6640e Mon Sep 17 00:00:00 2001
+From: Kevin Zhao <kevin.zhao@arm.com>
+Date: Tue, 15 Aug 2017 09:52:09 +0000
+Subject: [PATCH] Add video type virtio for AArch64
+
+Currently only "virtio" type is supported on AArch64, and the
+other "virrus", "qxl" and "vga" don't work on AArch64 according to
+libvirt upstream:
+https://www.redhat.com/archives/libvir-list/2016-September/msg00546.html
+Then this patch adds the virtio for AArch64 and tweaks the related test cases.
+
+Closes-bug: #1710766
+
+[ Alexandru.Avadanii@enea.com ]
+Dropped test changes so it applies cleanly on Newton without more backports.
+
+Change-Id: Iba8a1e671f2b5759b3d9178aa1871d0cf888b26b
+Signed-off-by: Kevin Zhao <kevin.zhao@arm.com>
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+
+--- a/nova/virt/libvirt/driver.py
++++ b/nova/virt/libvirt/driver.py
+@@ -4342,7 +4342,8 @@ def _check_number_of_serial_console(self, num_ports):
+                 allowed=ALLOWED_QEMU_SERIAL_PORTS, virt_type=virt_type)
+
+     def _add_video_driver(self, guest, image_meta, flavor):
+-        VALID_VIDEO_DEVICES = ("vga", "cirrus", "vmvga", "xen", "qxl")
++        VALID_VIDEO_DEVICES = ("vga", "cirrus", "vmvga",
++                               "xen", "qxl", "virtio")
+         video = vconfig.LibvirtConfigGuestVideo()
+         # NOTE(ldbragst): The following logic sets the video.type
+         # depending on supported defaults given the architecture,
+@@ -4360,6 +4361,10 @@ def _add_video_driver(self, guest, image_meta, flavor):
+             # NOTE(ldbragst): PowerKVM doesn't support 'cirrus' be default
+             # so use 'vga' instead when running on Power hardware.
+             video.type = 'vga'
++        elif guestarch in (fields.Architecture.AARCH64):
++            # NOTE(kevinz): Only virtio device type is supported by AARCH64
++            # so use 'virtio' instead when running on AArch64 hardware.
++            video.type = 'virtio'
+         elif CONF.spice.enabled:
+             video.type = 'qxl'
+         if image_meta.properties.get('hw_video_model'):
diff --git a/mcp/salt-formulas/armband/init.sls b/mcp/salt-formulas/armband/init.sls
new file mode 100644
index 0000000..8a8cf2a
--- /dev/null
+++ b/mcp/salt-formulas/armband/init.sls
@@ -0,0 +1,7 @@
+include:
+ - armband.qemu_efi
+ - armband.vgabios
+ {%- if salt['pkg.version']('python-nova') %}
+ - armband.nova_libvirt
+ - armband.nova_config
+ {%- endif %}
diff --git a/mcp/salt-formulas/armband/nova_config.sls b/mcp/salt-formulas/armband/nova_config.sls
new file mode 100644
index 0000000..674f371
--- /dev/null
+++ b/mcp/salt-formulas/armband/nova_config.sls
@@ -0,0 +1,30 @@
+{% if grains['virtual'] == 'kvm' %}
+nova_virt_type:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^virt_type\s*=.*$'
+    - repl: "virt_type = qemu"
+{% endif %}
+nova_pointer_model:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^#pointer_model\s*=.*$'
+    - repl: "pointer_model = ps2mouse"
+nova_cpu_mode:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern:  '^cpu_mode\s*=\s*host-passthrough'
+    - repl: "cpu_mode = custom"
+nova_cpu_model:
+  file.replace:
+    - name: "/etc/nova/nova.conf"
+    - pattern: '^#cpu_model\s*=.*$'
+    {% if grains['virtual'] == 'kvm' %}
+    - repl: "cpu_model = cortex-a57"
+    {% else %}
+    - repl: "cpu_model = host"
+    {% endif %}
+restart_nova-compute:
+  cmd:
+    - run
+    - name: "service nova-compute restart"
diff --git a/mcp/salt-formulas/armband/nova_libvirt.sls b/mcp/salt-formulas/armband/nova_libvirt.sls
new file mode 100644
index 0000000..bc2cbda
--- /dev/null
+++ b/mcp/salt-formulas/armband/nova_libvirt.sls
@@ -0,0 +1,7 @@
+nova-libvirt-aarch64-rollup:
+  file.patch:
+  - name: /usr/lib/python2.7/dist-packages
+  - source: salt://armband/files/nova-libvirt-aarch64-rollup.diff
+  - hash: False
+  - options: '-p1'
+  - unless: 'test -f /var/cache/salt/minion/files/base/armband/files/nova-libvirt-aarch64-rollup.diff && cd /usr/lib/python2.7/dist-packages && patch -p1 -R --dry-run /var/cache/salt/minion/files/base/armband/files/nova-libvirt-aarch64-rollup.diff'
diff --git a/mcp/salt-formulas/armband/qemu_efi.sls b/mcp/salt-formulas/armband/qemu_efi.sls
new file mode 100644
index 0000000..c697dae
--- /dev/null
+++ b/mcp/salt-formulas/armband/qemu_efi.sls
@@ -0,0 +1,2 @@
+qemu-efi:
+  pkg.installed
diff --git a/mcp/salt-formulas/armband/vgabios.sls b/mcp/salt-formulas/armband/vgabios.sls
new file mode 100644
index 0000000..500c2bc
--- /dev/null
+++ b/mcp/salt-formulas/armband/vgabios.sls
@@ -0,0 +1,7 @@
+vgabios:
+  pkg.installed
+/usr/share/qemu:
+  file.directory
+/usr/share/qemu/vgabios-stdvga.bin:
+  file.symlink:
+    - target: "/usr/share/vgabios/vgabios.bin"