macOS 15.0 supports Nested Virtualization on M3 chips

[walterbell]

Asahi Linux supports nested virtualization on Apple Silicon M2, where the feature is present in the chip, but not exposed by macOS.

[MaxikCZ]

I was shopping for a phone some time ago. iP14 Pro had always-on display while non-Pro version didnt. Apple justified it by non-Pro having lcd, while Pro having Oled.

Next year iP15, both non-Pro and Pro have Oled, but again only Pro has always-on display.

Honestly that is the reason I am still on my Note9, and looking for another Android.

I understand what product segmentation is, and probably I am minority, but damn, it feels like subscription-based heated seats.

[jbverschoor]

Yeah, it’s just another artificial limitation to get people to buy a newer laptop. They hit the devs where it hurts

[whatever1]

And ipadOS not even one layer of Mac virtualization

[walterbell]

At this point, only the EU can save the iPad from being eWaste World Champion.

Mandate support for alternate OSes, like Asahi Linux on Macbook, https://github.com/AsahiLinux/docs/wiki/Apple-Platform-Secur...

> ipadOS not even one layer of Mac virtualization

iPadOS 17 on M4 has a "Secure Exclave" OS, https://mastodon.social/@_inside/112440596781136013

[albertopv]

And never will (probably), Apple has been clear for years about market segmentation.

[justinclift]

It'd be super useful if Asahi Linux worked on iPads. :)

[dehrmann]

Servers aren't really Apple's thing, so it hasn't been much of an issue, but isn't this something Intel CPUs have supported for almost two decades?

[thesquib]

Came here to say the same thing

[nailer]

Anyone have a practical case for this? Not complaining just wondering.

[saurik]

CI systems often run their workloads in virtualization (for both security and ease of uniform deployment), but sometimes the jobs themselves use a VM to either run part of the build process (such as depending on a tool distributed using Docker, which relies on such due to the host kernel not being Linux) or run some of the unit/integration tests (whether to create a clean environment or to take advantage of the hypervisor to get fast emulation of a target device, such as an Android phone or whatever). Without nested virtualization, services such as GitHub Actions (or locally hosted options; FWIW, GitHub also lets you bring your own "runners") have thereby been somewhat crippled on Apple Silicon.

[jborean93]

Nested virtualization would be needed if you want to test out a Windows VM with the various Hyper-V integrations like WSL2, credential guard, etc.

[justinclift]

Docker containers (ie Docker Desktop) running inside macOS VMs.

That would fix a current blocking problem, as the lack of nested virtualisation means Docker Desktop (which runs its containers inside a Linux VM) has to run on the host and can't run inside a VM.

[gilgoomesh]

Running an older version of macOS, which supports older versions of Xcode and then using that to run older iOS simulators.

[tonymet]

Inception

[JayDustheadz]

I'm not a super-advanced user, so could somebody please let me know if this will allow running Windows on an ARM based Macs? Or perhaps running a VM with macOS Big Sur on macOS 15 ( I'm looking to install a specific version of an app via App Store - a version that is limited to macOS Big Sur )? Thanks in advance!

[wobfan]

You can already run Windows on Macs, just look at UTM or Parallels. You can also already run Big Sur on macOS 14.

Edit: Should've added that you can only run Windows ARM. Emulating x86 on ARM (= running "normal" Windows on macOS M-processors) may be possible (I'm not sure), but practically not usable as it will be painfully slow. That will probably not change in the near future. However Windows ARM contains a Rosetta-like x86 emulation layer so with some luck you won't even notice that you're running Windows ARM and not "normal" Windows.

[taran_narat]

I’m even less, what’s nested virtualisation?

[vbezhenar]

Still no USB Passthrough it seems. It's a pity.

[littlecranky67]

That is something that Parallels traditionally had for x86, isn't it also the case for Parallels with Windows on ARM?

[saagarjha]

That's up to the virtualization solution you're using.