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vSphere 8.0 Update 1c resolves Windows VBS performance & Hyper-V Generation 2 Nested VM running on AMD CPU

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vSphere 8.0 Update 1c was just released and one of the resolved issues mentioned in the ESXi release notes is the following:

Nested virtual machines on AMD CPUs with operational systems such as Windows with virtualization-based security (VBS) might experience performance degradation, timeouts, or unresponsiveness due to an issue with the virtualization of AMD's Rapid Virtualization Indexing (RVI), also known as Nested Page Tables (NPT).

UPDATE (10/11/23) - This is also resolved in the ESXi 7.0 Update 3o release

There are two scenarios in which this fix resolves:

  1. Running Windows Server VM with a Hyper-V enabled Generation 2 VM (Nested Virtualization) on AMD CPU
  2. Running Windows Server VM with VBS Enabled (Non-Nested VM) on AMD CPU

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vCenter Host Gateway ... more than meets the eye

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While going through the download motion like many of you when vSphere 6.0 was generally available, something that caught my eye in the vCenter Server download area was something called the vCenter Host Gateway (vCHG) virtual appliance. At first, I did not know what that was and until I spoke to a few colleagues did I realize that vCHG is the evolution of the Multi-Hypervisor Management (MHM) Plugin which provides vSphere Administrators a way to natively manage Hyper-V hosts within the vCenter Server UI. MHM was originally released as a Fling and later then productized within the vCenter Server product. At the time, it made sense for the plugin to be Windows based as it needed to connect to Hyper-V which obviously ran on Microsoft Windows.

It looks like the folks over in the MHM team have been quite busy as they have gotten rid of the Windows installer and have now provided a Virtual Appliance which uses winrm to directly communicate to the Hyper-V hosts. In addition, you can now manage Hyper-V hosts within the vSphere Web Client where as previously it was only available using the vSphere C# Client. vCHG works with both vCenter Server for Windows as well as the vCenter Server Appliance, there are no additional Windows host required for this new solution. Deploying and configuring vCHG is relatively straight forward and you can find all the instructions here. There were a few minor gotchas that I ran into and I thought it would be worth sharing, especially figuring out what was needed on the Hyper-V hosts which was mainly due to my lack of familiarity with winrm.

You have the option of configuring winrm to go over standard HTTP (port 5985) or HTTPS (port 5986) on the Hyper-V host but the latter requires you to setup SSL Certificates which you can find more details here. For that reason, I just went with the default HTTP method to quickly get going. To configure winrm, you will need to run following command and accept the default with "y":

winrm quickconfig

Next, you will need to enable winrm listener as shown in the screenshot below by running the following command:

winrm e winrm/config/listener

vcenter-host-gateway-1
At this point, you can now login to your vSphere Web Client and to add a Hyper-V host, you will need to add at the vSphere Datacenter level. This was another thing that I missed and though could be added into its own vSphere Cluster. As you can see from the screenshot below, we have extended our "Add Host" workflow to natively support Hyper-V hosts, so that it is intuitive and familiar for our vSphere Administrators.

vcenter-host-gateway-0
You will need to specify both the Hostname/IP Address of Hyper-V host followed by the winrm port (e.g. hostname:5985) and then select the Type to be "Hyper-V" and in a just a few seconds, you will be able to see your Hyper-V hosts within vCenter Server and perform basic power operations as well as creating/managing VMs running on Hyper-V. Below is a screenshot of my Hyper-V host and I just finished created a new VM using the vSphere Web Client and you can see it seamless integrated into a single view.

vcenter-host-gateway-2

This is great enhancement for customers who have to run a mix workload between vSphere and Hyper-V (I do apologize to those in advance ;)) but at least you now truly now have a single integrated pane of glass to manage all your workloads. I also do want to stress the word "integrated" beyond just the UI component that vCHG provides. I have found that all the operations through the vSphere Web Client is also exposed through our rich vSphere API, for example the AddHost_Task() method now includes a new hostGateway spec. This also means you will be able to use all the existing power operations and create VMs methods against your Hyper-V hosts, again tightly integrated into the existing tools you are familiar with such as PowerCLI for example for Automation. How freaking cool is that!?

but wait ... there's more! 😀

While going through the exercise of deploying vCHG and adding Hyper-V host, I could not help but wonder why we named this feature "Host Gateway", especially since we only supported a single third party hypervisor, did not really make sense to me? Well, it turns out there is a lot more coming! When you select the "Type" from the drop down menu, I notice there were a few more options: KVM and vCloud Air!

vcenter-host-gateway-4
I of course I tried to add a KVM host as well as my vCloud Air account but looks like those providers are not available just yet. I am actually quite excited to see support for vCloud Air. This has always been something I felt should have been available natively within the vSphere Inventory so that an administrator could deploy their workloads either locally on-premises or hosted on vCloud Air without having to jump around. It should align with the existing vSphere Administrator workflows and I am glad to see this change. This is definitely an area that I recommend keeping an eye out on and hopefully we will see vCloud Air support soon!

VMware has the best platform to run latest Windows 10 Desktop, Server & Hyper-V Tech Preview!

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I am constantly amazed at the number of guest operating systems that is supported on VMware products like VMware vSphere our Enterprise Hypervisor, vCloud Air our public cloud offering which runs on vSphere and our desktop products such as VMware Fusion and Workstation. If we just look at vSphere alone, it currently "lists" 101 supported guest operating systems! (full list below) However, this is actually a tiny subset of what is actually supported on vSphere as new guest OSes are constantly being added to the support matrix. This also does not include any pre-released operating systems like the recent Apple OS X Yosemite (10.10) Tech Preview. Heck, you can even run Windows 3.11 if you really want to as shown by my fellow VMware colleague Chris Colotti.

To get the complete list of currently supported operating systems for vSphere or any other VMware products, you will want to check the VMware HCL for Guest Operating Systems. Running a filter on latest ESXi 5.5 Update 2 release for all Guest OSes, we can see that the total number of supported Guest OSes is astounding 231! I know this number is even greater as we probably can not capture every single x86 Guest OS that exists out there today which can run on VMware.

Getting back to the topic of this post, I know Microsoft has recently released a new Tech Preview of their upcoming Windows platform dubbed Windows 10 (not a typo, they decided to skip Windows 9) and I know some of you may be interested in trying out their latest release. What better way than to run it on VMware? I know there was a blog or two about running Windows 10 on vSphere, however there was some incorrect information about not being able to install VMware Tools or getting the optimized VMXNET3 driver working. I decided to run all three flavors (Windows 10 Desktop, Server and Hyper-V) on the latest vSphere 5.5 release (should work on previous releases of 5.5) and will share the Virtual Machine configuration.

Note: You can also run Windows 10 Tech Preview on both VMware Fusion and Workstation, take a look at this article for more details. These are great options in addition to vSphere and vCloud Air.

Windows 10 Desktop:

  • GuestOS: Windows 8 64-bit
  • Virtual HW: vHW10
  • Network Driver: VMXNET3
  • Storage Controller: LSI Logic SAS

windows10-desktop

Windows 10 Server:

  • GuestOS: Windows 2012 64-bit
  • Virtual HW: vHW10
  • Network Driver: VMXNET3
  • Storage Controller: LSI Logic SAS

windows10-server

Windows 10 Hyper-v:

  • GuestOS: Windows 2012 64-bit
  • Virtual HW: vHW10
  • Network Driver: VMXNET3
  • Storage Controller: LSI Logic SAS
  • CPU Advanced Setting: Enable VHV
  • VM Advanced Setting: hypervisor.cpuid.v0

For more details about running Hyper-V and the last two advanced settings, please take a look at this article on running other Hypervisors.

windows10-hyper-v
If you look closely at this last screenshot, you will see that I am not only running Windows 10 Hyper-V within a VM on ESXi, but I am also running a Nested Windows 10 VM within this Hyper-V VM! How cool is that!? Not sure there are good use cases for this, but if you wanted to, you could! In my opinion (although I may be bias because I work for VMware, but results speak for itself), VMware truly provides the best platform to the widest variety of x86 guest operating systems that exists.

Here are the guest operating systems that are currently "listed" in vSphere today that can be selected:

Apple Mac OS X 10.5 (32-bit)
Apple Mac OS X 10.5 (64-bit)
Apple Mac OS X 10.6 (32-bit)
Apple Mac OS X 10.6 (64-bit)
Apple Mac OS X 10.7 (32-bit)
Apple Mac OS X 10.7 (64-bit)
Apple Mac OS X 10.8 (64-bit)
Apple Mac OS X 10.9 (64-bit)
Asianux 3 (32-bit)
Asianux 3 (64-bit)
Asianux 4 (32-bit)
Asianux 4 (64-bit)
CentOS 4/5/6 (32-bit)
CentOS 4/5/6/7 (64-bit)
Debian GNU/Linux 4 (32-bit)
Debian GNU/Linux 4 (64-bit)
Debian GNU/Linux 5 (32-bit)
Debian GNU/Linux 5 (64-bit)
Debian GNU/Linux 6 (32-bit)
Debian GNU/Linux 6 (64-bit)
Debian GNU/Linux 7 (32-bit)
Debian GNU/Linux 7 (64-bit)
FreeBSD (32-bit)
FreeBSD (64-bit)
IBM OS/2
Microsoft MS-DOS
Microsoft Small Business Server 2003
Microsoft Windows 2000
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows 3.1
Microsoft Windows 7 (32-bit)
Microsoft Windows 7 (64-bit)
Microsoft Windows 8 (32-bit)
Microsoft Windows 8 (64-bit)
Microsoft Windows 95
Microsoft Windows 98
Microsoft Windows NT
Microsoft Windows Server 2003 (32-bit)
Microsoft Windows Server 2003 (64-bit)
Microsoft Windows Server 2003 Datacenter (32-bit)
Microsoft Windows Server 2003 Datacenter (64-bit)
Microsoft Windows Server 2003 Standard (32-bit)
Microsoft Windows Server 2003 Standard (64-bit)
Microsoft Windows Server 2003 Web Edition (32-bit)
Microsoft Windows Server 2008 (32-bit)
Microsoft Windows Server 2008 (64-bit)
Microsoft Windows Server 2008 R2 (64-bit)
Microsoft Windows Server 2012 (64-bit)
Microsoft Windows Vista (32-bit)
Microsoft Windows Vista (64-bit)
Microsoft Windows XP Professional (32-bit)
Microsoft Windows XP Professional (64-bit)
Novell NetWare 5.1
Novell NetWare 6.x
Novell Open Enterprise Server
Oracle Linux 4/5/6 (32-bit)
Oracle Linux 4/5/6/7 (64-bit)
Oracle Solaris 10 (32-bit)
Oracle Solaris 10 (64-bit)
Oracle Solaris 11 (64-bit)
Other (32-bit)
Other (64-bit)
Other 2.4.x Linux (32-bit)
Other 2.4.x Linux (64-bit)
Other 2.6.x Linux (32-bit)
Other 2.6.x Linux (64-bit)
Other 3.x Linux (32-bit)
Other 3.x Linux (64-bit)
Other Linux (32-bit)
Other Linux (64-bit)
Red Hat Enterprise Linux 2.1
Red Hat Enterprise Linux 3 (32-bit)
Other (32-bit)
Red Hat Enterprise Linux 3 (64-bit)
Red Hat Enterprise Linux 4 (32-bit)
Red Hat Enterprise Linux 4 (64-bit)
Red Hat Enterprise Linux 5 (32-bit)
Red Hat Enterprise Linux 5 (64-bit)
Red Hat Enterprise Linux 6 (32-bit)
Red Hat Enterprise Linux 6 (64-bit)
Red Hat Enterprise Linux 7 (32-bit)
Red Hat Enterprise Linux 7 (64-bit)
SCO OpenServer 5
SCO OpenServer 6
SCO UnixWare 7
SUSE Linux Enterprise 10 (32-bit)
SUSE Linux Enterprise 10 (64-bit)
SUSE Linux Enterprise 11 (32-bit)
SUSE Linux Enterprise 11 (64-bit)
SUSE Linux Enterprise 12 (32-bit)
SUSE Linux Enterprise 12 (64-bit)
SUSE Linux Enterprise 8/9 (32-bit)
SUSE Linux Enterprise 8/9 (64-bit)
Serenity Systems eComStation 1
Serenity Systems eComStation 2
Sun Microsystems Solaris 8
Sun Microsystems Solaris 9
Ubuntu Linux (32-bit)
Ubuntu Linux (64-bit)
VMware ESX 4.x
VMware ESXi 5.x