MP 1,1-5,1 OpenCore don't run any virtualisation app

[Gallakos]

Hello,

I installed OpenCore on a 2010 Mac pro and I can't run any virtualisation apps like vmware fusion and virtualbox. I remove and reinstall apps, but no change. In the preferences of confidentiality I have no request also of authorization. I don't know if it's Opencore or Big Sur, to tell the truth.
I've done some research on the internet, but I don't see anything that could relate to my problem. That said, for PCs, I see a lot of people who say they need to make changes in their bios.

In virtualbox I have

In vmware

 

[tsialex]

Hello,

I installed OpenCore on a 2010 Mac pro and I can't run any virtualisation apps like vmware fusion and virtualbox. I remove and reinstall apps, but no change. In the preferences of confidentiality I have no request also of authorization. I don't know if it's Opencore or Big Sur, to tell the truth.
I've done some research on the internet, but I don't see anything that could relate to my problem. That said, for PCs, I see a lot of people who say they need to make changes in their bios.
View attachment 1672263

In virtualbox I have

View attachment 1672262

In vmware

View attachment 1672261

It's not OpenCore, but BigSur Apple Hypervisor asking for instructions that our Xeons don't have at all. XSAVE is only supported with MP6,1 Xeons.

 

[Gallakos]

Thanks for the info. Do you know if there's any way to solve this?

 

[chrfr]

Thanks for the info. Do you know if there's any way to solve this?

You'd need to get a newer Mac, or stay with Catalina or Mojave and Fusion 11. Fusion 12 will never run on these old Mac Pros. I don't use Virtualbox so I can't say with certainty there, but the situation is probably similar.

 

[tsialex]

Thanks for the info. Do you know if there's any way to solve this?

Unless Apple remove the XSAVE requirement from Apple Hypervisor, Big Sur on a MP5,1 and VMware Fusion (or any other virtualisation solution that depends on Apple Hypervisor, like Anka) it's a no go.

Catalina and Fusion 11.5.x works fine.

Read more here:

VMWare Fusion no more on MacPro5,1

I wanted to let everyone know that Vmware Fusion 12 does not run on a MacPro5,1 anymore, due to the lack of XSave instructions on the CPU & VMware not wanting to support older hardware. https://communities.vmware.com/thread/642875 I had VMware Fusion Tech Preview (Fusion 12 Beta) running on Big...

forums.macrumors.com

 

[tempbeta]

Hello,

I installed OpenCore on a 2010 Mac pro and I can't run any virtualisation apps like vmware fusion and virtualbox. I remove and reinstall apps, but no change. In the preferences of confidentiality I have no request also of authorization. I don't know if it's Opencore or Big Sur, to tell the truth.
I've done some research on the internet, but I don't see anything that could relate to my problem. That said, for PCs, I see a lot of people who say they need to make changes in their bios.
View attachment 1672263

In virtualbox I have

View attachment 1672262

In vmware

View attachment 1672261

about VBox:

boot into recovery mode
open Terminal

csrutil clear
reboot

 

[haralds]

Parallels Desktop still works on my 5,1. I switched after more than 20 years in VMware (first Workstation, then Fusion.)
They could have enabled an override to still load their KEXT based HyperVisor as they do in Catalina, but no...

 

[Gallakos]

boot into recovery mode
open Terminal

csrutil clear
reboot

I find this solution in VirtualBox forum, but is not working for me. I think is bug with Big Sur, because I have the same problem on a 2017 pro macbook finaly

@heralds I think I do same solution

 

[The Spirit]

i run virtualbox on my big sur open core installation without any problems

 

[tsialex]

While solutions that use it's own virtualisation engine like VirtualBox, will probably work when updated to Big Sur quirks, Parallels is reported working already, anything that runs over Apple Hypervisor, like Anka or Fusion 12, won't work anymore with a MacPro5,1.

Apple Hypervisor now requires instructions not present with MP5,1 Xeons, XSAVE. Maybe someone down the road can develop a way to trap and emulate the instructions like MouSSE does for SSE4.2…

 

[startergo]

While solutions that use it's own virtualisation engine like VirtualBox, will probably work when updated to Big Sur quirks, Parallels is reported working already, anything that runs over Apple Hypervisor, like Anka or Fusion 12, won't work anymore with a MacPro5,1.

Apple Hypervisor now requires instructions not present with MP5,1 Xeons, XSAVE. Maybe someone down the road can develop a way to trap and emulate the instructions like MouSSE does for SSE4.2…

I tried emulating the instructions and they appear same as if we set/check VMM bit, but it did not work. Apparently the hypervisor checks directly and not in the cache, same as the intel gadget for checking the CPU features.

 

[tsialex]

I tried emulating the instructions and they appear same as if we set/check VMM bit, but it did not work. Apparently the hypervisor checks directly and not in the cache, same as the intel gadget for checking the CPU features.

Sorry, but I think that are using the term emulation totally wrong. You did spoof it, no? Emulating is to re-implement the instructions not present using other ones that exist to do the job for the one that don't.

 

[Dayo]

Maybe someone down the road can develop a way to trap and emulate the instructions like MouSSE does for SSE4.2

I think that are using the term emulation totally wrong. You did spoof it, no?

You are right but the main point being made is that the check is apparently directly querying the CPU for the feature list and aborting if not passing. An emulator such as MouSSE will also fail under such circumstances unless it can somehow get the CPU to respond that it has the feature when queried directly.

Spoofing can work if it can somehow intercept the response and change this but then really deep in the wild west.

 

[Gallakos]

i run virtualbox on my big sur open core installation without any problems

I think is a problem with SIP for VirtualBox https://forums.virtualbox.org/viewtopic.php?f=8&t=100707
I try to enable SIP with Clover (Method 1) but is not possible. It always remains disabled

csrutil status
System Integrity Protection status: unknown (Custom Configuration).

Configuration:
        Apple Internal: disabled
        Kext Signing: disabled
        Filesystem Protections: disabled
        Debugging Restrictions: disabled
        DTrace Restrictions: disabled
        NVRAM Protections: disabled
        BaseSystem Verification: enabled

The solution below doesn't resolve the problem for me with VB

csrutil clear
reboot