#Utm apple virtualization vs qemu full#
#Utm apple virtualization vs qemu android#
#Utm apple virtualization vs qemu pro#

Why Hypervisor syscalls don’t work on iPhones

A modified version of UTM, the QEMU port for iOS, that uses the amework support.

A hand-decompiled amework to talk with the kernel’s hypervisor support.

A modified Fugu14 jailbreak to call hypervisor functions in the kernel.

The lack of RAM prevents it from working anyways.) How this works

#Utm apple virtualization vs qemu android#

(I also tried booting Android - I spent several days trying to run Waydroid in my Linux VM without success. Windows arm64 refused to boot on my decompiled amework, and I don’t have time to troubleshoot why.Įven if Windows were to boot, software rendered Crysis runs at 1fps at 640x480 on my M1 Mac Mini with 4 performance cores… so on an iPhone with 2 performance cores, it’d be 0.5fps.

CPUs before A14/M1 do not have hardware accelerated virtualization supportīelieve me, I tried.

sign with the entitlement and include the decompiled amework.

so any jailbreak should work, not just Fugu14.

These devices already have Hypervisor support unlocked in the kernel.

#Utm apple virtualization vs qemu pro#

M1 (iPad Pro 2021/iPad Air 2022) on jailbroken iOS 14/15:

if you have any questions, I’ll be happy to help.

to make this usable on other devices/versions, you’ll need to implement patchfinding for offsets.

I did not attempt to handle different kernel versions in my proof-of-concept.

(the unlock won’t work on iOS 15 since the hypervisor heap was moved to read-only memory).

The kernel unlock can be ported to iOS versions supposed by Fugu14.

(I tried increasing this limit, but this caused kernel panics) Can this be ported to other devices?Ī14 (iPhone 12) on jailbroken iOS 14.7 and below: In non-hardware accelerated mode, VMs can use 2GB of RAM. iOS terminates the VM when it uses more than 1GB of RAM. One disadvantage of hardware accelerated virtualization: double the RAM overhead. Emulating arm64 would have a smaller overhead, but I’d still expect a 5x to 10x slowdown. However, an Apple Silicon Mac gets a Geekbench score of 68 when emulating x86 with QEMU/UTM JIT. I did not try running Geekbench in JIT-only mode on my phone. How much faster is hardware accelerated virtualization compared to UTM’s JIT mode? It’s also really unstable (VMs can only use 900MB of RAM, and if it goes over, often the whole phone crashes and reboots). This is a proof-of-concept that targets iPhone 12 on iOS 14.1 only. Information Is this practical?Ībsolutely not.

Here’s a video of my iPhone 12 running the modified UTM, booting a Fedora 36 VM, and showing the requisite Neofetch and LibreOffice demo. VMs on iPhone 12 are limited to 900MB of RAM, however. Virtualization support is disabled in the kernel, but can be re-enabled with a jailbreak. IPhone 12’s A14 CPU supports virtualization, just like Apple Silicon Macs. …for the clickbait - and to show iPhone’s untapped potential.

#Utm apple virtualization vs qemu full#

I unlocked amework on my jailbroken phone and modified UTM, a popular QEMU port for iOS, to run arm64 Linux in a VM at full native speed.