Virtualbox paravirtualization interface. mpack Site Moderator Posts: 39134 Joined: 4.

Virtualbox paravirtualization interface Through sophisticated techniques, Oracle VM VirtualBox virtualizes many guest operating systems entirely in software. The language that your host OS uses to talk to its hypervisor is not relevant to the virtual machine. KVM: Presents a Linux KVM hypervisor interface which is recognized by Linux kernels version 2. Exposing a paravirtualization provider to the guest operating system does not rely on the choice of host platforms. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP Paravirtualization Interface: Oracle VM VirtualBox provides paravirtualization interfaces to improve time-keeping accuracy and performance of guest OSes. But this is not the same thing as running a Hyper-v hypervisor on your Host. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP If nested paging is enabled, the Oracle VM VirtualBox hypervisor can also use large pages to reduce TLB usage and overhead. In my case (on Mac), when "default" paravirtualization-interface option is selected (under Acceleration tab), the VB dashboard shows VT-x to be enabled. Admins should familiarize themselves with these four FAQs prior to adoption. mpack Site Moderator Posts: 39156 Joined: 4. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP Become or hire the top 3% of the developers on Toptal https://topt. Please provide a VM log file. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP mpack Site Moderator Posts: 38847 Joined: 4. The paravirtualization interface is just a way for modern (i. In any case, Virtual Box 6. Another possible solution is paravirtualization, in which only specially modified guest OSes are allowed to run. Linux Guests do not recognize Hyper-v paravirtualized interfaces. For Windows 10 guests the correct choice is Hyper-v so leave it on that. Correct, or do I have it completely backward? Thanks in Feb 18, 2024 · Paravirtualization interface = default. VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP. Jun 20, 2024 · So, follow the given step to set the Paravirtualization Interface to KVM. Hello. I have toggled Enable Nested Paging on and off, and switched the Paravirtualization Interface alternatively to None, Default, Legacy, etc. Windows guests speak Hyper-v when talking to a hypervisor (in this case VirtualBox). IMO, just leave that setting on Default. On my previous laptop, which is just a little Microsoft SP3, I have VirtualBox (6. 'Paravirtualization Interface' is a comm channel for virtualization-aware OS's to talk to whatever hypervisor is running them, so they can run more efficiently. Any suggestions on how to improve performance? The legacy option is chosen for VMs which were created with older VirtualBox versions and will pick a paravirtualization interface while starting the VM with VirtualBox 5. These interfaces require the guest operating system to recognize their presence and make use of them in order to leverage the benefits of communicating with the Oracle VM VirtualBox Jun 7, 2021 · My Linux guests run fine, both using KVM paravirtualization. Jun 24, 2019 · How do I direct Virtualbox to start the virtual machine with Hyper-V's nested virtualization enabled? [Edit]: Notice, I am not asking about exposing a para-virtualization interface to the guest, I am asking about nested VT-x/AMD-V virtualization. Learn how to configure the paravirtualization interface for your virtual machine on the Processor tab. Nov 20, 2018 · Check every VM settings at System => Acceleration: Default should be specified as Paravirtualization Interface. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP How to select paravirtualization interface in VirtualBox?I hope you found a solution that worked for you :) The Content (except music & images) is licensed u mpack Site Moderator Posts: 39134 Joined: 4. May 19, 2024 · How to fix the Windows 11 or 10 stuck on logo issue in VirtualBox. Technical requirements Deploying, managing, operating and monitoring paravirtualized guest OS requires advanced technical skills which happen to be in shortage in the current market. The host is not involved. That option controls how the guest sees the hypervisor, but the underlying virtualization is the same. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP The version of VirtualBox: 7. Result Code : E_FAIL (0x80004005) Composant : ConsoleWrap Interface : IConsole {872da645-4a9b-1727-bee2-5585105b9eed} Once you have enabled the "Hyper-V" and "Windows Hypervisor Platform" features in Windows 10, VirtualBox will use accelerations : VT-x/AMD-V, Nested Paging, Hyper-V Paravirtualization. Make sure the VM is fully shut down, then right click it in the manager UI. Learn how to configure an Oracle VirtualBox virtual machine (VM) with various guest operating systems and virtual hardware. As I know Oracle love Xen and why VirtualBox not offer any option about Xen in Paravirtualization Interface? Thank you. 30 r148432. I noticed, when starting the install of my Windows 10 guest, that the default paravirtualization option chosen by VirtualBox is Hyper-V (which is apparently the default for Windows guests). With paravirtualization, the VMs access system resources directly through interfaces similar to the underlying hardware. . For example, VirtualBox provides virtio network interface which entirely eliminates emulating network cards in the software given the guest can make use of the interface. 0 Hope that helped! I am quite new to VirtualBox. x requires hardware virtualization support (VT-x, SVM, AMD-v, etc. 6. The paravirtualization interface does not have anything to do with what kind of hypervisor is running the guest OS. Feb 28, 2016 · VirtualBox is VirtualBox and is well documented - Try the User Guide for starters! XEN is XEN and is also well documented on relevant internet sites, which does not include VirtualBox Forums. PDM (Pluggable Device Manager): An abstract interface between the VMM and emulated devices which separates device implementations from VMM internals and makes it easy to add new emulated devices. Jul 27, 2015 · The biggest change in VirtualBox 5. Sep 25, 2024 · Enabling 3D Acceleration (under the Display tab in VirtualBox settings) Adjusting the video memory (also under the Display tab) Configuring paravirtualization interfaces (VT-x/AMD-V and Nested Paging) We have discussed various factors contributing to the unresponsiveness of Ubuntu 22. Legacy: It is recommended to use the Legacy interface when mpack Site Moderator Posts: 39134 Joined: 4. KVM) to None in the Ubuntu VM caused host CPU usage for VBoxHeadless to remain in the 2-4% range when the VM was idle. The paravirtualization interface options you mention have little to do with your issue. Paravirtualization takes a more streamlined approach that enables the guest OSes to share resources more efficiently and interact with the hypervisor in a way that improves performance. com/roelvandepaarWith thanks & praise to Oct 1, 2013 · I've found setting paravirtualization interface to "HyperV" gives acceptable performance, so the only downside is that the VM is limited to 1 CPU. Nov 8, 2022 · VirtualBox does not pass through the paravirtualization interface from the Windows hypervisor (Hyper-V), but provides its own, which by default is the one naturally matching the guest OS. Jun 24, 2017 · When I use HyperV or Minimal Paravirtualization interface I'm able to successfully enable Nested Paging and according to runtime information in VirtualBox it seems to indeed be active and running. However, the "Acceleration" details do show up on the VirtualBox dashboard screen on the right, under the System details. e. Any suggestions on how to improve performance? GIM (Guest Interface Manager): Provides support for various paravirtualization interfaces to the guest. Jun 25, 2020 · A paravirtualization interface offers admins enhanced system performance, easier backups, faster migrations and improved power conservation. Correct, or do I have it completely backward? Thanks in Paravirtualization Interface: Default Hardware Virtualization: Nested paging enabled Display: 128MB, 1 display, Scale 100%, Graphics controller: VMSVGA, 3D acceleration disabled Nov 16, 2020 · Changing the paravirtualization interface from Default (i. Now, step to set Paravirtualization Jan 16, 2022 · I have a Windows 11 Pro Host machine running VirtualBox 6. Any suggestions on how to improve performance? Oct 9, 2022 · Lots of people have VMs which are successfully using the paravirtualization API to talk to VirtualBox, so I'm not satisfied by your suggestion. Performance is "usable" but it's noticeably worse than I had on baremetal VirtualBox. So the question remains: Why do you want to provide the Hyper-V paravirtualization interface instead of the KVM paravirtualization interface? Paravirtualization means that the guest is aware of the virtualized environment and utilizes certain APIs provided by host and hypervisor to improve performance. Find out the supported and unsupported guest OSs, the platform architectures, and the limitations of macOS guests. But the technology also comes with its own issues, which can complicate adoption. Learn the difference between Hyper-V and paravirtualization, and how to optimize performance and compatibility. The options available are documented under the --paravirt-provider option in . 04 VM. Paravirtualization Interface: Default Running VirtualBox 7. Paravirtualization Interface: KVM Hardware Virtualization Aug 12, 2020 · How to select paravirtualization interface in VirtualBox?Helpful? Please support me on Patreon: https://www. The paravirtualization interface allows the guest OS to run faster and more efficiently by using special instructions that are not available on the host CPU. Any suggestions on how to improve performance? mpack Site Moderator Posts: 39134 Joined: 4. I remembered Windows 10 did not install Hyper-V, so I went to "Add remove program features" (or similar) in the Control Panel and I checked the box mpack Site Moderator Posts: 39134 Joined: 4. 16 r140961, for the sake of clarity) and imported the VM environment again, however, this didn't change the result. But if you must try to change it Windows would be hyper-v, Linux would be KVM, Etc. They paravirtualization setting does nothing for XP guests. VirtualBox 6. This does not do what you think it does. x. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP mpack Site Moderator Posts: 38748 Joined: 4. May 3, 2021 · If I change Paravirtualization Interface from Default to None the machine boots again with 7. 10 will kernel panic on boot. This means that you can run virtual machines even on older processors None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). Aug 14, 2021 · Paravirtualization interface: default Hardware virtualization: check enable nested paging he told me this "There is a bug in Virtual Box Guest Additions Graphics This is likely not to be true if your host is Windows 10. 16 r140961 to match the currently installed GA (which is 6. May 17, 2021 · Would changing my version of Virtualbox to match the GA produce the same effect? I changed my version of Virtualbox to 6. way past XP) OS's to communicate to the hypervisor when the OS is running in a virtual machine, so the OS can run more efficiently. Correct, or do I have it completely backward? Thanks in While experimenting I also noticed that if I change "Paravirtualization Interface" from "Default" to "Hyper-V", Ubuntu 18. If you want to talk Linux, choose KVM. VirtualBox has a few options for this setting. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP Jan 28, 2022 · The paravirtualization API setting changes the "language" VirtualBox will use when talking to a particular hypervisor-aware guest OS. 'Paravirtualization Interface' should always stay on what Virtualbox first sets it to, Default being the safest. orgTrack title: The World Wide Mind- Mar 18, 2015 · The smart approach would be to let VirtualBox decide which one to use. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP My question is, what is the 'optimal' paravirtualization interface for either guest? At the moment, based on looking at what I could find online (which rarely explicitly talks about a particular host-guest combination), I have Hyper-V for the Windows guest, and KVM for the Linux guest. Any suggestions on how to improve performance? Paravirtualization Interface: Default Hardware Virtualization: Enable Nested Paging. Enable nested paging = ON. If you want to talk Windows, set it to Hyper-v. Compare the features and benefits of different providers, such as Minimal, KVM and Hyper-V. 04 LTS virtual machines on VirtualBox with an Intel Alder Sep 6, 2020 · The paravirtualization interface is a communication channel between a virtualization-aware OS, like modern Windows or Linux, and the hypervisor, in this case Virtualbox. Click Settings > System > Acceleration. Windows trying to boot into repair mode means that the virtual drive is corrupted. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP Apr 10, 2009 · You can use the Intel PRO/1000 MT Desktop (82540EM) network adapter as drivers are available, however it won't increase your network speed as VirtualBox will push data through the virtual interface at the highest speed your physical network will support, also don't change to it until after you've run the Network Setup Wizard. VirtualBox provides the following interfaces: The legacy option is used for VMs which were created with older Oracle VM VirtualBox versions and will pick a paravirtualization interface when starting the VM with Oracle VM VirtualBox 5. Aug 24, 2017 · It seems the option does not show up in VirtualBox any more. al/25cXVn--Music by Eric Matyashttps://www. 0. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP mpack Site Moderator Posts: 39156 Joined: 4. Jul 14, 2015 · VirtualBox 5 exposes a setting called "Paravirtualization Interface" that can improve performance for some specific guest operating systems. Paravirtualization Interface: Hyper-V Pointless. Nov 12, 2023 · That setting 'Paravirtualization Interface' is a communication channel for virtualization-aware OS's to talk to whatever hypervisor is running them, so they can run more efficiently. 20) and WinXP set up and it runs perfectly. ) if you use its "native" interface (KVM for Linux and hyper-V for Windows), but VBox should be well supported already. If I set the paravirtualization interface to "default" or Hyper-V (which I guess is the default when windows 11 guest type is selected), then the Windows 11 guest hangs quite frequently. patreon. Dec 19, 2018 · KrzysztofMW wrote: Does it mean that from now it is possible to run VirtualBox VMs with Paravirtualization interface explicitly set to 'Hyper-V'? The "paravirtualization API" selected in the VM settings is a pre-existing feature which selects an API which is presented to guests, it has nothing to do with how VirtualBox runs the VM. Running a Windows Vista guest machine results in a BSOD in the guest during installation. Apr 1, 2020 · A forum discussion about the best paravirtualization setting for Windows 10 Home as a host OS and Windows 7 as a guest OS in VirtualBox. 6 with lockup. Oracle VM VirtualBox enables the exposure of a paravirtualization interface, to facilitate accurate and efficient execution of software within a virtual machine. This also enabled paravirtualized clocks and SMP spinlocks. 0 The host and guest OSes: host is windows 11 and vm is win10 pro Whether you have enabled VT-x/AMD-v and disabled HyperV (if applicable): disabled vt-x/amd-vidk about hyper-v, i have the paravirtualization interface set to default and hardware virtualization checked for enable nested paging. ) to function. Confirm your Linux guest are configured to use the KVM paravirtualization provider – this should be the default in recent VirtualBox versions. mpack Site Moderator Posts: 39134 Joined: 4. My windows CPU had the right flags enabled, but importing tensorflow was failing with illegal instruction on my ubuntu20. Any suggestions on how to improve performance? Apr 27, 2022 · These log messages are from the 'Paravirtualization Interface' (System settings, Acceleration, Paravirtualization Interface), which is a comm channel for virtualization-aware OS's to talk to whatever hypervisor is running them, so they can run more efficiently. 4 with Guest Additions installed. This communication channel needs a 'language' to use, defined only by the type of OS running in the VM. 0 is the introduction of paravirtualization support, bringing higher performance and time-keeping accuracy to supported guest operating systems (Hyper-V on Windows and KVM on Linux). Hence, there is typically no need to install additional software in the guest (including VirtualBox Guest Additions) to make use of this feature. As opposed to other virtualization software, for many usage scenarios, Oracle VM VirtualBox does not require hardware virtualization features to be present. soundimage. Dec 14, 2024 · How to select paravirtualization interface in VirtualBox? Hey guys! Hopefully you found a solution that helped you! The Content is licensed under (https://me Aug 7, 2020 · “Oracle VM VirtualBox enables the exposure of a paravirtualization interface, to facilitate accurate and efficient execution of software within a virtual machine. None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). It works if paravirtualization interface is set to None. Launch Virtualbox VM from the Start Menu. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP Dec 21, 2018 · My question is, what is the 'optimal' paravirtualization interface for either guest? At the moment, based on looking at what I could find online (which rarely explicitly talks about a particular host-guest combination), I have Hyper-V for the Windows guest, and KVM for the Linux guest. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP mpack Site Moderator Posts: 39134 Joined: 4. Any suggestions would be appreciated. May 31, 2018 · My example is from a Windows 10 VM with System > Acceleration > Paravirtualization Interface set to Default. 2 successfully and 7. The legacy option is chosen for VMs which were created with older VirtualBox versions and will pick a paravirtualization interface while starting the VM with VirtualBox 5. Regardless of what changes I make, the OK button will not light up and my only choice is to click cancel. This setting should be changed back to Default (which probably means KVM). Default: The default interface, selected by Default, automatically configures the paravirtualization setting according to the operating system platform and version entered while preparing the virtual PC. As mentioned above, I confirmed hypervisorlaunchtype was set to off. Jul 6, 2016 · Utilizing the Virtio Para-virtualized network driver is quick and easy in the current version of VirtualBox. Try different Paravirtualization Interface. 25 or later. Oct 20, 2015 · Most mainstream, modern operating systems, including Windows and Linux, ship with support for one or more paravirtualization interfaces. Virtualbox settings as follow --General tab--Name: xxxx Type: Microsoft Windows Version: Windows 10 64 bit Shared clipboard: bidirectional drag n drop: bidirectional --System tab--Based memory: 8048MB Processor: 4 Execution cap: 90% Extended features for "Enable PAE/NX" and "Enable Nested VT-x/AMD-v": uncheck Paravirtualization interface: default None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). Keeping Default here lets you easily switch back to the faster acceleration when you execute bcdedit /set hypervisorlaunchtype off and reboot (note that Docker will stop working after that). The issue was something had gone wrong during VirtualBox Manager installation. The options available are documented under the --paravirt-provider option in VBoxManage modifyvm . I know that this version of Windows has limited support but I have software that only runs on Vista that I need to run and I would really like to make this work so I don't have to move May 2, 2022 · I have installed the latest VirtualBox, but I find my client Linux is very slow even stuck sometimes. Oct 9, 2022 · Lots of people have VMs which are successfully using the paravirtualization API to talk to VirtualBox, so I'm not satisfied by your suggestion. x I saw various paravirtualization options in the "Acceleration" tab of my VM settings. These interfaces require the guest operating system to recognize their presence and make use of them in order to leverage the benefits of communicating with the Oracle VM VirtualBox Oracle VM VirtualBox contains a recompiler based on QEMU which can be used for pure software emulation, but the recompiler is only activated in special situations, described below. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP The Oracle problem is that it add "KVM" and "Hyper-V" in Paravirtualization Interface because of "Red Hat" and "Microsoft" but "Xen" is open source and not have any commercial sponsor, But if you open your eyes then you can see that many companies use Xen as Cloud. Oracle VM VirtualBox's implementation currently supports paravirtualized clocks and SMP spinlocks. Linux doesn't speak Hyper-V. 6 but I guess this has some performance penalties? What may be wrong? How to continue finding the reason for this? Attaching VirtualBox log files from booting with 7. 0 and newer. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP mpack Site Moderator Posts: 39134 Joined: 4. Paravirtualization Interface. Professor Robert McMillen shows you Paravirtualization in VirtualBox 6 Nov 28, 2024 · Paravirtualization interface: Hyper-V Hardware Virtualization: [x] Enable Nested Paging With those settings I can enable Hyper-V inside the Windows 11 VM and boot to the Windows 11 desktop without problems. Rather, it changes what hypervisor interface is presented to your VMs (Note: the actual hypervisor remains the same - Virtual Box). Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP Jul 18, 2022 · Hyper-V: Microsoft’s hypervisor interface, recommended for most Windows guest OS. This can yield a performance improvement of up to 5%. It is simply the "language" that VirtualBox will use to talk to this guest. Setting this to Hyper-V does not turn on the host OS's Hyper-V. If your VM is stuck on the Windows boot logo, you can try the following solutions to fix the issue. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: VirtualBox+Oracle ExtPack Guest OSses: Mostly XP Nov 10, 2024 · None: It turns off any paravirtualization interface supported by VirtualBox. Paravirtualization interface has nothing to do with your host OS or its features. Oracle VirtualBox enables the exposure of a paravirtualization interface, to facilitate accurate and efficient execution of software within a virtual machine. Learn how VirtualBox exposes a paravirtualization interface to facilitate accurate and efficient execution of software within a virtual machine. None: Turns off the paravirtualization interface; Default: This is the default option before you make your custom choice. Different paravirtualization interfaces can affect your VM’s booting and performance. It should be set to whatever VM API language is spoken by the guest. These interfaces require the guest operating system to recognize their presence and make use of them in order to leverage the benefits of communicating with the Oracle VM VirtualBox Sep 15, 2020 · The 'Paravirtualization Interface' setting is for how the modern virtualization-aware OS communicates with the hypervisor, not the engine that runs the virtual machine. Modern Windows OSs would use the Hyper-V paravirtualization interface. Any suggestions on how to improve performance? None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). Apr 1, 2020 · None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). Jun 1, 2016 · I was faced with a similar issue. AFAIK, there is some performance gain using KVM paravirtualization interface for Linux guests. Oct 25, 2023 · No. These interfaces require the guest operating system to recognize their presence and make use of them in order to leverage the benefits of communicating with the Oracle VirtualBox hypervisor. All of theses facts can easily be found with a little self effort, so it isn't really necessary to waste the valuable time of VirtualBox Users who Dec 21, 2018 · My question is, what is the 'optimal' paravirtualization interface for either guest? At the moment, based on looking at what I could find online (which rarely explicitly talks about a particular host-guest combination), I have Hyper-V for the Windows guest, and KVM for the Linux guest. This is an unofficial support community for Oracle VM None or minimal interfaces (did not try other interfaces) are usable but also have really poor performance ( more than 2 minutes to open Chrome @ 100% cpu ). Thank you! Running a Windows Guest on a Virtual Box VM with a Hyper-v paravirtualization interface option enabled can improve VM performance. To enable this feature for a VM, you use the VBoxManage modifyvm --largepages command Oct 11, 2023 · Paravirtualization challenges are mostly technical, requiring expertise to deploy and manage, as well as to navigate complex compatibility issues. Dec 1, 2015 · The legacy option is chosen for VMs which were created with older VirtualBox versions and will pick a paravirtualization interface while starting the VM with VirtualBox 5. It allows VirtualBox to select the appropriate paravirtualization interface depending on the OS you are using. No hardware virtualization support, no VMs in Virtual Box 6. Quick links: VirtualBox User Manual , Search the VirtualBox Forums , Search the VirtualBox Bugtracker mpack Site Moderator Posts: 39134 Joined: 4. Re Jan 10, 2020 · VT-x is not available (VERR_VMX_NO_VMX). Dec 3, 2013 · The term used "paravirtualization interface" is original and nowhere precisely describes whether the interface faces the Host (to accept the hypervisor provided by the OS) or the Guest, which would require Virtualbox to itself have the hypervisor code bits normally provided by the Host OS. In fact, trying to start word is enough to systematically hang the guest OS. Sep 2008, 16:09 Primary OS: MS Windows 10 VBox Version: PUEL Guest OSses: Mostly XP mpack Site Moderator Posts: 39156 Joined: 4. Is there a way to set this option in a Vagrantfile? And in general: Is there documentation on how to set the acceleration settings via the Vagrantfile? This question is not related to How to select paravirtualization interface in virtual box In Virtualbox 5. So, my first question: Why does VirtualBox choose this when Hyper-V is not installed/enabled? Apr 15, 2015 · 'Paravirtualization Interface' is a comm channel for virtualization-aware OS's to talk to whatever hypervisor is running them, so they can run more efficiently. My question is, what is the 'optimal' paravirtualization interface for either guest? At the moment, based on looking at what I could find online (which rarely explicitly talks about a particular host-guest combination), I have Hyper-V for the Windows guest, and KVM for the Linux guest. You might get slightly better integration with the guest (ballooning, filesystem sharing, etc. The minimal provider is mandatory for Mac OS X guests, while kvm and hyperv are recommended for Linux and Windows guests respectively. Paravirtualization Interface: Oracle VM VirtualBox provides paravirtualization interfaces to improve time-keeping accuracy and performance of guest OSes. Apr 26, 2016 · Clock synchronization between guest and host does not work if paravirtualization interface is set to KVM or Default . Discussions related to using VirtualBox on Linux hosts. 1. qlgc hqkot fwmz wpon zeem qzlimpp hrxj paqyd itb zohaj