3146 Commits

Author SHA1 Message Date
Mike Tutkowski
06806a6523 CLOUDSTACK-9619: Updates for SAN-assisted snapshots 2016-12-06 17:32:56 -07:00
Rohit Yadav
f82873ebf8
Merge branch '4.9' 2016-12-05 15:32:11 +05:30
Rohit Yadav
48b28f7d6e
Merge branch '4.8' into 4.9 2016-12-05 15:32:03 +05:30
Rohit Yadav
20aea27dc0
Merge pull request #1765 from shapeblue/CLOUDSTACK-9586
Cloudstack 9586: When using local storage with Xenserver prepareTemplate does not work with multiple primary storeThe race condition will happen whenever there are multiple primary storages and the CS tries to mount the secondary store to xenserver host simultaneously.

Due to synchronised block one mount will be successful and other thread will get the already mounted SR. Without the fix the two thread will try to mount it parallely and one will fail on Xenserver.

* pr/1765:
  Cloudstack 9586: When using local storage with Xenserver prepareTemplate does not work with multiple primary store The race condition will happen whenever there are multiple primary storages and the CS tries to mount the secondary store to xenserver host simultaneously. Due to synchronised block one mount will be successful and other thread will get the already mounted SR. Without the fix the two thread will try to mount it parallely and one will fail on Xenserver.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-12-05 15:31:25 +05:30
Rohit Yadav
45a746ad2e
Merge branch '4.9' 2016-12-05 15:16:22 +05:30
Rohit Yadav
8d14e8e8b5 Merge pull request #1729 from shapeblue/vmware-memleak-fix
CLOUDSTACK-9564: Fix memory leaks in VmwareContextPoolIn a recent management server crash, it was found that the largest contributor
to memory leak was in VmwareContextPool where a registry is held (arraylist)
that grows indefinitely. The list itself is not used anywhere or consumed. There
exists a hashmap (pool) that returns a list of contexts for existing poolkey
(address/username) that is used instead.

This fixes the issue by removing the arraylist registry, and limiting the
length of the context list for a given poolkey.

@blueorangutan package

* pr/1729:
  CLOUDSTACK-9564: Fix memory leaks in VmwareContextPool

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-12-05 15:15:58 +05:30
Abhinandan Prateek
ba32ac1a7c Cloudstack 9586: When using local storage with Xenserver prepareTemplate does not work with multiple primary store
The race condition will happen whenever there are multiple primary storages and the CS tries to mount the secondary store to xenserver host simultaneously.
Due to synchronised block one mount will be successful and other thread will get the already mounted SR. Without the fix the two thread will try to mount it parallely and one will fail on Xenserver.
2016-12-02 13:37:47 +05:30
Rohit Yadav
e091e82a7f
Merge branch '4.9' 2016-12-02 10:42:31 +05:30
Rohit Yadav
90a3d97c5e CLOUDSTACK-9564: Fix memory leaks in VmwareContextPool
In a recent management server crash, it was found that the largest contributor
to memory leak was in VmwareContextPool where a registry is held (arraylist)
that grows indefinitely. The list itself is not used anywhere or consumed. There
exists a hashmap (pool) that returns a list of contexts for existing poolkey
(address/username) that is used instead.

This fixes the issue by removing the arraylist registry, and limiting the
length of the context list for a given poolkey.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-12-01 15:27:29 +05:30
Suresh Kumar Anaparti
309da6a57f CLOUDSTACK-8854: Apple Mac OS/X VM get created without USB controller in ESXi hypervisors 2016-12-01 14:32:18 +05:30
Rohit Yadav
185be24ed8
Merge pull request #1577 from nlivens/CLOUDSTACK-9321
CLOUDSTACK-9321 : Multiple Internal LB rules (more than one Internal LB rule with same source IP address) are not getting resolved in the corresponding InternalLbVm instance's haproxy.cfg fileMultiple Internal LB rules (more than one Internal LB rule with same source IP address) are not getting resolved in the corresponding InternalLbVm instance's haproxy.cfg file. Moreover, each time a new Internal LB rule is added to the corresponding InternalLbVm instance, it replaces the existing one. Thus, traffic corresponding to these un-resolved (old) Internal LB rules are getting dropped by the InternalLbVm instance.

PR contents:
1) Fix for this bug.
2) Marvin test coverage for Internal LB feature on master with native ACS setup (component directory) including validations for this bug fix.
3) Enhancements on our exiting Internal LB Marvin test code (nuagevsp plugins directory) to validate this bug fix.
4) PEP8 & PyFlakes compliance with the added Marvin test code.

* pr/1577:
  CLOUDSTACK-9321 : Multiple Internal LB rules (more than one Internal LB rule with same source IP address) are not getting resolved in the corresponding InternalLbVm instance's haproxy.cfg file

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-25 13:31:45 +05:30
Rohit Yadav
62c8496d7e
Merge pull request #1580 from nlivens/nuage_vsp_pat_fip2ul
CLOUDSTACK-9402 : Support for underlay features (Source & Static NAT to underlay) in Nuage VSP pluginSupport for underlay features (Source & Static NAT to underlay) with Nuage VSP SDN Plugin including Marvin test coverage for corresponding Source & Static NAT features on master. Moreover, our Marvin tests are written in such a way that they can validate our supported feature set with both Nuage VSP SDN platform's overlay and underlay infra.

PR contents:
1) Support for Source NAT to underlay feature on master with Nuage VSP SDN Plugin.
2) Support for Static NAT to underlay feature on master with Nuage VSP SDN Plugin.
3) Marvin test coverage for Source & Static NAT to underlay on master with Nuage VSP SDN Plugin.
4) Enhancements on our exiting Marvin test code (nuagevsp plugins directory).
5) PEP8 & PyFlakes compliance with our Marvin test code.

* pr/1580:
  CLOUDSTACK-9402 : Support for underlay features (Source & Static NAT to underlay) in Nuage VSP plugin

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-25 13:29:15 +05:30
Rohit Yadav
d8c038e5b2
Merge branch '4.9' 2016-11-25 13:10:56 +05:30
Rohit Yadav
50f80cc2a0
Merge branch '4.8' into 4.9 2016-11-25 13:03:04 +05:30
Rohit Yadav
020606ec31 Merge pull request #1738 from SudharmaJain/cs-9566
CLOUDSTACK-9566 instance-id metadata for baremetal VM returns IDThere is difference in instance-id metadata across baremetal and other hypervisors.

On Baremetal
[root@ip-172-17-0-144 ~]# curl http://8.37.203.221/latest/meta-data/instance-id
6021

on Xen
[root@ip-172-17-2-103 ~]# curl http://172.17.0.252/latest/meta-data/instance-id
cbeb517a-e833-4a0c-b1e8-9ed70200fbbf

In both cases it should be vm's uuid.

* pr/1738:
  CLOUDSTACK-9566 instance-id metadata for baremetal VM returns ID

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-25 12:52:10 +05:30
Nick Livens
8d4dc81223 CLOUDSTACK-9402 : Support for underlay features (Source & Static NAT to underlay) in Nuage VSP plugin
CLOUDSTACK-9402 : Marvin tests for Source NAT and Static NAT features verification with NuageVsp (both overlay and underlay infra).

Co-Authored-By: Prashanth Manthena <prashanth.manthena@nuagenetworks.net>, Frank Maximus <frank.maximus@nuagenetworks.net>
2016-11-24 21:33:02 +01:00
Wido den Hollander
2a5f37c1b1
CLOUDSTACK-8715: Add channel to Instances for Qemu Guest Agent
This commit adds a additional VirtIO channel with the name
'org.qemu.guest_agent.0' to all Instances.

With the Qemu Guest Agent the Hypervisor gains more control over the Instance if
these tools are present inside the Instance, for example:

* Power control
* Flushing filesystems
* Fetching Network information

In the future this should allow safer snapshots on KVM since we can instruct the
Instance to flush the filesystems prior to snapshotting the disk.

More information: http://wiki.qemu.org/Features/QAPI/GuestAgent

Keep in mind that on Ubuntu AppArmor still needs to be disabled since the default
AppArmor profile doesn't allow libvirt to write into /var/lib/libvirt/qemu

This commit does not add any communication methods through API-calls, it merely
adds the channel to the Instances and installs the Guest Agent in the SSVMs.

With the addition of the Qemu Guest Agent channel a second channel appears in /dev
on a SSVM as a VirtIO port.

The order in which the ports are defined in the XML matters for the naming inside
the SSVM VM and by not relying on /dev/vportXX but looking for a static name the
SSVM still boots properly if the order in the XML definition is changed.

A SSVM with both ports attached will have something like this:

  root@v-215-VM:~# ls -l /dev/virtio-ports
  total 0
  lrwxrwxrwx 1 root root 11 May 13 21:41 org.qemu.guest_agent.0 -> ../vport0p2
  lrwxrwxrwx 1 root root 11 May 13 21:41 v-215-VM.vport -> ../vport0p1
  root@v-215-VM:~# ls -l /dev/vport*
  crw------- 1 root root 251, 1 May 13 21:41 /dev/vport0p1
  crw------- 1 root root 251, 2 May 13 21:41 /dev/vport0p2
  root@v-215-VM:~#

In this case the SSVM port points to /dev/vport0p1, but if the order in the XML
is different it might point to /dev/vport0p2

By looking for a portname with a pre-defined pattern in /dev/virtio-ports we
do not rely on the order in the XML definition.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2016-11-23 16:01:08 +01:00
Rohit Yadav
feaeed7b16
Merge pull request #1542 from nvazquez/nestedv
CLOUDSTACK-9379: Support nested virtualization at VM level on VMware Hypervisor## Introduction

[JIRA TICKET](https://issues.apache.org/jira/browse/CLOUDSTACK-9379)

It is desired to support nested virtualization at VM level for VMware hypervisor. Current behaviour supports enabling/desabling global nested virtualization by modifying global config `'vmware.nested.virtualization'`. It is wished to improve this feature, having control at VM level instead of a global control only.

A new global configuration is added, to enable/disable VM nested virtualization control: `'vmware.nested.virtualization.perVM'`. Default value=false

After a vm deployment or start command, vm params include `'nestedVirtualizationFlag'` key and its value is:
- true -> nested virtualization enabled
- false -> nested virtualization disabled

**We will determinate nested virtualization enabled/disabled by examining this 3 values:**
- **(1)** global configuration `'vmware.nested.virtualization'` value
- **(2)** global configuration `'vmware.nested.virtualization.perVM'` value
- **(3)** `'nestedVirtualizationFlag'` value in `user_vm_details` if present, `null` if not.

Using this 3 values, there are different use cases:
- **(1)** = TRUE, **(2)** = TRUE, **(3)** is null -> _ENABLED_
- **(1)** = TRUE, **(2)** = TRUE, **(3)** = TRUE -> _ENABLED_
- **(1)** = TRUE, **(2)** = TRUE, **(3)** = FALSE -> _DISABLED_
- **(1)** = TRUE, **(2)** = FALSE, **(3)** indifferent  -> _ENABLED_
- **(1)** = FALSE, **(2)** = TRUE, **(3)** is null -> _DISABLED_
- **(1)** = FALSE, **(2)** = TRUE, **(3)** = TRUE -> _ENABLED_
- **(1)** = FALSE, **(2)** = TRUE, **(3)** = FALSE -> _DISABLED_
- **(1)** = FALSE, **(2)** = FALSE, **(3)** indifferent -> _DISABLED_

* pr/1542:
  CLOUDSTACK-9379: Support nested virtualization at VM level on VMware Hypervisor

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-23 15:00:36 +05:30
Rohit Yadav
35803805c7
Merge branch '4.9' 2016-11-23 14:28:31 +05:30
Rohit Yadav
1f2184800b Merge pull request #1681 from murali-reddy/router_eth_device_index
CLOUDSTACK-9491: incorrect parsing of device list to find ethernet index of plugged NICIn VmwareResource, findRouterEthDeviceIndex() method find ethernet interface index given
the mac address. This method is used, once a nic is plugged to determine ethernet interface.
"/proc/sys/net/ipv4/conf" from the VR and looped through the devices to find the right
ethernet interface. Howver current logic read it once, and loops through the device list.
Its observerd device may not show up '/proc/sys/net/ipv4/conf' immediatly once NIC is plugged
in the VM from vCenter.

Fix ensured, while waiting for 15 sec in the loop, read the latest content from /proc/sys/net/ipv4/conf
, so that right device list is processed.

Manual tested VPC scenarios of adding new tiers which uses findRouterEthDeviceIndex, to find the guest/public network ethernet index.

* pr/1681:
  CLOUDSTACK-9491: incorrect parsing of device list to find ethernet index of plugged NIC

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-23 14:28:12 +05:30
Rohit Yadav
0642a6982f
Merge branch '4.9' 2016-11-23 14:22:15 +05:30
Rohit Yadav
55b918076f
Merge branch '4.8' into 4.9 2016-11-23 13:50:15 +05:30
Rohit Yadav
ff616e700b Merge pull request #1745 from shapeblue/CLOUDSTACK-9503
CLOUDSTACK-9503: Increased the VR script timeout. Most of the changes are about converting int/long time values to joda Duration.

* pr/1745:
  CLOUDSTACK-9503: Increased the VR script timeout. Most of the changes are about converting int/long time values to joda Duration.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-23 13:41:52 +05:30
Nick Livens
62e858131f CLOUDSTACK-9321 : Multiple Internal LB rules (more than one Internal LB rule with same source IP address) are not getting resolved in the corresponding InternalLbVm instance's haproxy.cfg file
CLOUDSTACK-9321 : Adding component tests for VPC Network functionality - Internal LB rules

CLOUDSTACK-9321 : Extending Nuage VSP Internal LB Marvin tests

Co-Authored-By: Prashanth Manthena <prashanth.manthena@nuagenetworks.net>, Frank Maximus <frank.maximus@nuagenetworks.net>
2016-11-22 15:51:22 +01:00
Koushik Das
027409d9bc Merge release branch 4.9 to master
* 4.9:
  CLOUDSTACK-9410: Data Disk shown as detached in XS
2016-11-21 11:25:38 +05:30
Koushik Das
bdc806e315 Merge release branch 4.8 to 4.9
* 4.8:
  CLOUDSTACK-9410: Data Disk shown as detached in XS
2016-11-21 11:12:09 +05:30
Koushik Das
7f051bd790 Signed-off-by: Koushik Das <koushik@apache.org> 2016-11-21 10:45:04 +05:30
nvazquez
cebee7cbda CLOUDSTACK-9379: Support nested virtualization at VM level on VMware Hypervisor 2016-11-17 17:51:50 -03:00
John Burwell
5cc9070b0b Cleanup merge mistakes 2016-11-17 00:09:56 -05:00
John Burwell
c66cf1c60d Merge release branch 4.9 to master
* 4.9:
  CLOUDSTACK-9502: DS template copies don’t get deleted in VMware ESXi with multiple clusters and zone wide storage
2016-11-16 23:23:09 -05:00
John Burwell
20b43767d7 Merge pull request #1676 from nvazquez/dstemplates49
CLOUDSTACK-9502: DS template copies dont get deleted in VMware ESXi with multiple clusters and zone wide storage (include CLOUDSTACK-9386 into 4.9 release branch)Include #1560 into 4.9 release branch

* pr/1676:
  CLOUDSTACK-9502: DS template copies don’t get deleted in VMware ESXi with multiple clusters and zone wide storage

Signed-off-by: John Burwell <meaux@cockamamy.net>
2016-11-16 22:15:50 -05:00
John Burwell
becec33c2e Merge release branch 4.9 to master
* 4.9:
  CLOUDSTACK-8830: Fix for vm snapshots in Vmware, could not create vm snapshot until 12 minutes after vm creation due to vCenter sent null name on snpashot recent task
2016-11-16 09:45:46 -05:00
John Burwell
74639b305f Merge pull request #1677 from nvazquez/vmsnapshot12min
CLOUDSTACK-8830 - [Vmware] VM snapshot fails for 12 min after instance creation (Targeted for 4.9)Continuing work by @maneesha-p in #798

This closes #798

* pr/1677:
  CLOUDSTACK-8830: Fix for vm snapshots in Vmware, could not create vm snapshot until 12 minutes after vm creation due to vCenter sent null name on snpashot recent task

Signed-off-by: John Burwell <meaux@cockamamy.net>
2016-11-16 09:43:54 -05:00
Eric Waegeman
4e6c7e179a CLOUDSTACK-9401 : Support for Internal DNS in Nuage VSP plugin 2016-11-14 14:39:48 +01:00
Rohit Yadav
41c71576c0
Merge branch '4.9' 2016-11-03 16:52:34 +05:30
Rohit Yadav
e2e5cdb74f
Merge branch '4.8' into 4.9 2016-11-03 16:52:08 +05:30
Rohit Yadav
b59db0dc06 Merge pull request #1705 from nemo9cby/CLOUDSTACK-9465
Made the changes to improve logging.CLOUSTACK-9465 Several log refactoring/improvement suggestions.

There are two scenarios of logging which needs refactoring/improvement:

Method invocation replaced by variable

This means that in the logging code, the method invocation is pre-defined as a variable. for simplicity,          the method invocation should be replaced by the variable.

Delete variable which must be null

The variable in the logging code is null, there is no need to put the variable there.

* pr/1705:
  Made the changes to improve logging.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2016-11-03 16:48:21 +05:30
Rajani Karuturi
f7733b4a0e Merge pull request #1600 from syed/snapshot-archive-pr
Support Backup of Snapshots for Managed Storage```
This PR adds an ability to Pass a new parameter, locationType,
to the createSnapshot API command. Depending on the locationType,
we decide where the snapshot should go in case of managed storage.

There are two possible values for the locationType param

1) `Primary`: The standard operation for managed storage is to
keep the snapshot on the device (primary). For non-managed storage, this will
give an error as this option is only supported for managed storage

2) `Secondary`: Applicable only to managed storage. This will
keep the snapshot on the secondary storage. For non-managed
storage, this will result in an error.

The reason for implementing this feature is to avoid a single
point of failure for primary storage. Right now in case of managed
storage, if the primary storage goes down, there is no easy way
to recover data as all snapshots are also stored on the primary.
This features allows us to mitigate that risk.
```

* pr/1600:
  Support Backup of Snapshots for Managed Storage

Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
2016-11-02 14:43:43 +05:30
Abhinandan Prateek
83b5a8b2b2 CLOUDSTACK-9503: Increased the VR script timeout. Most of the changes are about converting int/long time values to joda Duration. 2016-11-01 16:14:23 +05:30
Mike Tutkowski
3475ef29f0 Making use of the new SolidFire SDK for Java 2016-10-31 08:09:39 -06:00
Syed
f46651e672 Support Backup of Snapshots for Managed Storage
This PR adds an ability to Pass a new parameter, locationType,
    to the “createSnapshot” API command. Depending on the locationType,
    we decide where the snapshot should go in case of managed storage.

    There are two possible values for the locationType param

    1) `Standard`: The standard operation for managed storage is to
    keep the snapshot on the device. For non-managed storage, this will
    be to upload it to secondary storage. This option will be the
    default.

    2) `Archive`: Applicable only to managed storage. This will
    keep the snapshot on the secondary storage. For non-managed
    storage, this will result in an error.

    The reason for implementing this feature is to avoid a single
    point of failure for primary storage. Right now in case of managed
    storage, if the primary storage goes down, there is no easy way
    to recover data as all snapshots are also stored on the primary.
    This features allows us to mitigate that risk.
2016-10-30 23:19:58 -06:00
Murali Reddy
b449351a9f CLOUDSTACK-9491: incorrect parsing of device list to find ethernet index of plugged NIC
In VmwareResource, findRouterEthDeviceIndex() method find ethernet interface index given
  the mac address. This method is used, once a nic is plugged to determine ethernet interface.
  "/proc/sys/net/ipv4/conf" from the VR and looped through the devices to find the right
  ethernet interface. However current logic read it once, and loops through the device list.
  Its observerd device may not show up '/proc/sys/net/ipv4/conf' immediatly once NIC is plugged
  in the VM from vCenter.Fix ensured, while waiting for 15 sec in the loop, read the latest
  content from /proc/sys/net/ipv4/conf, so that right device list is processed.
2016-10-28 17:50:36 +05:30
Sudharma Jain
759a92d251 CLOUDSTACK-9566 instance-id metadata for baremetal VM returns ID 2016-10-27 13:50:39 +05:30
Rajani Karuturi
c9e7ccf46e Merge pull request #1615 from nvazquez/nfsConfigKey
CLOUDSTACK-9438: Fix for CLOUDSTACK-9252 - Make NFS version changeable in UIJIRA TICKET: https://issues.apache.org/jira/browse/CLOUDSTACK-9438

### Introduction

From #1361 it was possible to configure NFS version for secondary storage mount.
However, changing NFS version requires inserting an new detail on `image_store_details` table, with `name = 'nfs.version'` and `value = X` where X is desired NFS version, and then restarting management server for changes to take effect.

Our improvement aims to make NFS version changeable from UI, instead of previously described workflow.

### Proposed solution
Basically, NFS version is defined as an image store ConfigKey, this implied:
* Adding a new Config scope: **ImageStore**
* Make `ImageStoreDetailsDao` class to extend `ResourceDetailsDaoBase` and `ImageStoreDetailVO` implement `ResourceDetail`
* Insert `'display'` column on `image_store_details` table
* Extending `ListCfgsCmd` and `UpdateCfgCmd` to support **ImageStore** scope, which implied:
** Injecting `ImageStoreDetailsDao` and `ImageStoreDao` on `ConfigurationManagerImpl` class, on `cloud-server` module.

### Important
It is important to mention that `ImageStoreDaoImpl` and `ImageStoreDetailsDaoImpl` classes were moved from `cloud-engine-storage` to `cloud-engine-schema` module in order to Spring find those beans to inject on `ConfigurationManagerImpl` in `cloud-server` module.

We had this maven dependencies between modules:
* `cloud-server --> cloud-engine-schema`
* `cloud-engine-storage --> cloud-secondary-storage --> cloud-server`

As `ImageStoreDaoImpl` and `ImageStoreDetailsDao` were defined in `cloud-engine-storage`, and they needed in `cloud-server` module, to be injected on `ConfigurationManagerImpl`, if we added dependency from `cloud-server` to `cloud-engine-storage` we would introduce a dependency cycle. To avoid this cycle, we moved those classes to `cloud-engine-schema` module

* pr/1615:
  CLOUDSTACK-9438: Fix for CLOUDSTACK-9252 - Make NFS version changeable in UI

Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
2016-10-27 11:48:23 +05:30
subhash yedugundla
38c56bdf44 CLOUDSTACK-9410: Data Disk shown as detached in XS 2016-10-25 14:57:33 +05:30
nvazquez
94222b1356 CLOUDSTACK-8830: Fix for vm snapshots in Vmware, could not create vm snapshot until 12 minutes after vm creation due to vCenter sent null name on snpashot recent task 2016-10-24 13:26:45 -03:00
Mike Tutkowski
088ffa0842 Added support for system VMs to make use of managed storage 2016-10-21 16:28:34 -06:00
subhash yedugundla
725ddb82a1 CLOUDSTACK-9554 Juniper Contrail plug-in is publishing events to wrong message bus 2016-10-21 12:14:21 +05:30
Nemo
cd9c7737d1 Made the changes to improve logging. 2016-10-11 12:58:02 -04:00
Wido den Hollander
0beb41b6e7 CLOUDSTACK-9395: Add Virtio RNG device to Instances when configured
By adding a Random Number Generator device to Instances we can prevent
entropy starvation inside guest.

The default source is /dev/random on the host, but this can be configured
to another source when present, for example a hardware RNG.

When enabled it will add the following to the Instance's XML definition:

  <rng model='virtio'>
    <rate period='1000' bytes='2048' />
    <backend model='random'>/dev/random</backend>
  </rng>

If the Instance has the proper support, which most modern distributions have,
it will have a /dev/hwrng device which it can use for gathering entropy.

More information: https://libvirt.org/formatdomain.html#elementsRng
2016-10-04 12:44:55 +02:00