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> But both VMWare and Parallels for example have made ARM on ARM virtualisation releases of their existing x86 on x86 products. Right, but the VMs themselves a

> But both VMWare and Parallels for example have made ARM on ARM virtualisation releases of their existing x86 on x86 products. Right, but the VMs themselves are not cross platform. ARM Linux won't work in Intel VMWare, and x86 Linux won't work in ARM VMWare. I am sure you knew, or course, but as you pointed out there is confusion below about VirtualBox working on Apple Silicon.

chrisseaton 4y ago
> ARM Linux won't work in Intel VMWare Newsflash: program for one processor's instruction set won't work on another processor.
- coldtea 4y ago
  If only it was that clear cut. As you well know, with Rosetta and other technologies (heck, also Wine) that's just not true. With Rosetta you can take any (or most) Mac programs compiled for x86 and just run them on M1 ARM. Support gets even deeper, as with the Rosetta update you will be able to even run x86 binaries inside a hosted ARM virtual machine (!). So it makes sense for people to be confused as to what's actually supported, and to add the clarification when this is not the case, because some might also expect this could be the case with say Virtualbox.
  - chrisseaton 4y ago
    > Well, with Rossetta and other technologies (heck, also Wine) that's just not true. Rosetta takes an instruction stream from another processor and translates it to an instruction stream for another processor - that's exactly what I mean - it needs translation.
    - coldtea 4y ago
      Sure, and I know you know it. But it's exactly the availability of said translation that makes the claim "program for one processor's instruction set won't work on another processor" less clear cut than the "news flash" sarcasm implies. Doubly so since this translation is often automagical and transparent to the one using it (so they expect it to just work in all cases).
- deleted 4y ago
  [deleted]
oneplane 4y ago
That is correct. But lets leave the VMs for now. The hypervisors is where the problem is at, if a hypervisor has no release for a specific platform, you cannot use it, period. That is the problem with VirtualBox. There is no VirtualBox for ARM. Only VirtualBox for x86. If you have an ARM host, and you wish you run an ARM guest, you cannot do that with VirtualBox. Because there is no VirtualBox for ARM.

chrisseaton 4y ago

> ARM Linux won't work in Intel VMWare Newsflash: program for one processor's instruction set won't work on another processor.

coldtea 4y ago
If only it was that clear cut. As you well know, with Rosetta and other technologies (heck, also Wine) that's just not true. With Rosetta you can take any (or most) Mac programs compiled for x86 and just run them on M1 ARM. Support gets even deeper, as with the Rosetta update you will be able to even run x86 binaries inside a hosted ARM virtual machine (!). So it makes sense for people to be confused as to what's actually supported, and to add the clarification when this is not the case, because some might also expect this could be the case with say Virtualbox.
- chrisseaton 4y ago
  > Well, with Rossetta and other technologies (heck, also Wine) that's just not true. Rosetta takes an instruction stream from another processor and translates it to an instruction stream for another processor - that's exactly what I mean - it needs translation.
  - coldtea 4y ago
    Sure, and I know you know it. But it's exactly the availability of said translation that makes the claim "program for one processor's instruction set won't work on another processor" less clear cut than the "news flash" sarcasm implies. Doubly so since this translation is often automagical and transparent to the one using it (so they expect it to just work in all cases).
deleted 4y ago
[deleted]

oneplane 4y ago

That is correct. But lets leave the VMs for now. The hypervisors is where the problem is at, if a hypervisor has no release for a specific platform, you cannot use it, period. That is the problem with VirtualBox. There is no VirtualBox for ARM. Only VirtualBox for x86. If you have an ARM host, and you wish you run an ARM guest, you cannot do that with VirtualBox. Because there is no VirtualBox for ARM.