![]() be as small as a single C program and as big as an entire operating system depending on the developer’s need.PerformanceĪVF is designed to be lightweight, efficient and flexible. VMs also make porting of existing Linux based applications seamless and easy, compared to porting into a Trustzone operating system. ![]() This means that developers can build an application once and deploy it everywhere. For example, a Linux-based virtual machine with a Linux-application payload will work on all devices that support AVF. Virtual machines and the applications running inside them are far more portable than trusted applets. With an isolated VM, developers now have an alternative to Trustzone for use cases that need isolation from Android without escalated privilege. Even if Android is compromised all the way up to (and including) the host kernel, the isolated VM remains uncompromised.The workload and data inside the VM is inaccessible (confidential) from the host (Android).An isolated virtual machine has a two-way barrier, where neither the host (Android) nor the VM have access to each other, except via explicitly-agreed-upon communication channels. Developers who deal with or store sensitive data may benefit from an isolated virtual machine. Two-way isolation (Isolated VM): Android (the host) and the virtual machine (the guest) are completely isolated from each other.These are most commonly used for sandboxing and separation, enabling multiple operating systems to run on the same machine / device, with one operating system host (Android) controlling and watching over all others. One-way isolation: Android (the host) can control and inspect the contents of the VM.Developers have the flexibility to choose the level of isolation for a virtual machine: With AVF virtual machines become a core construct of the Android operating system, similar to the way Android utilizes Linux processes. ![]() It enables efficient scaling of infrastructure, testing environments, legacy software compatibility, creating virtual desktops and much more. Virtualization is widely used and deployed to isolate workloads and operating systems from each other. ![]() With AVF, we are more broadly supporting virtualization to Android. The AVF, first introduced in Android 13 on Pixel devices, provides new capabilities for platform developers working on privileged applications. The Android Virtualization Framework (AVF) will be available on upcoming select Android 14 devices. Posted by Sandeep Patil – Principal Software Engineer, and Irene Ang – Product Manager ![]()
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