Below are the targeted features for the alpha version.
|
Phyllome OS alpha features |
| Nested-virtualization |
Yes |
| Paravirtualization |
Full support on Linux guests |
| IOMMU support |
Yes |
| Migration |
Cold migration only |
| Snapshots |
No |
| Cloning |
Yes |
| Virtual disks format |
RAW only |
| PCI Passthrough |
Yes |
| Sound |
PCI Passthrough |
| Bluetooth |
PCI Passthrough |
| USB |
PCI Passthrough |
| Display modes |
Spice and VNC |
| UEFI |
Yes |
| Secure Boot |
Yes |
| TPM |
Yes |
| Fedora 34 |
Phyllome OS alpha |
Phyllome OS beta |
Phyllome OS 1.0 |
| Out-of-the box support for virtualization |
No |
Yes |
Yes |
| Emulator/virtualizer |
QEMU |
QEMU |
QEMU, Cloud Hypervisor |
| Virtual chipset |
i440fx / Q35 |
Q35 |
Q35, virt |
| Firmware |
OVMF, SeaBIOS |
OVMF |
OVMF |
| Hypervisor |
KVM |
KVM |
KVM |
| Based on |
Itself |
Fedora Server |
Fedora Silverblue |
| Desktop-oriented |
Possible |
Yes |
Yes |
| Package management |
RPM |
RPM |
RPM-ostree |
| Rolling release |
No |
No |
Yes |
| Live-edition |
No |
No |
No |
| Local-first |
Possible |
Yes |
Yes |
| Default filesystem |
Btrfs |
Ext4 |
Ext4 |
| Host encryption |
Possible |
No |
Filesystem-level encryption |
| GPU support |
Intel, AMD and Nvidia |
Intel |
Intel and AMD |
| Target release date |
Released |
2021 |
2022 |
Here are some features that may be added later :
- App store
- An application store for distributing prepackaged and easy-to-deploy operating systems
- A new GUI application to manage virtual machines
- The virtual machine manager does more than what Phyllome OS needs. It would make sense to rely on a leaner, more simple
software, similar to GNOME Boxes.
- Ideally, it would be written in Rust, just as the Cloud Hypervisor
- Graphics
- Out-of-the box support for Single GPU passthrough
- Support for single GPU passthrough would make it easier to run Phyllome OS on hardware that features a single graphics card lacking support for vfio-mdev.
- Out-of-the box support for vfio-mdev on Nvidia, consumer grade GPUs.
- A 2021 project is bringing vfio-mdev to Nvidia, consumer grade GPUs. It would be great to support it and offer Phyllome's users the ability to split their physical GPUs.
- Out-of-the box support for SR/IOV on generation 11th of Intel graphics
- Streaming
- Making encoding and decoding a virtual machine desktop or display more efficient would allow for more diverse uses, including usable remote desktops.
- For that to happen, it would mean to support virtio-video.
- Another route would be to use WebRTC on Wayland.
- Support the Virtual I/O Device (VIRTIO) Version 1.2
- Version 1.2 of the VIRTIO specification will soon be released with new virtual devices. Phyllome OS will need to support these.
- Support platform-dependent confidential computing features
- On public clouds -- where many virtual machines are collocated underneath the same hypervisor -- there are ongoing efforts to
make it possible to run workloads without having to blindly trust the host system. Some of those efforts rely on
platform-specific technologies, such as Intel's SGX Secure Enclave or and AMD's Secure Encrypted Virtualization (SEV). It
would be nice to be able to support these.
- First-class support for more open x86 hardware
- It would be great to optimize Phyllome OS to work on a recent, more open x86 motherboard that supports both openBMC and
Coreboot[^54].
- Support beyond the x86 architecture
- Support for hardware based on ARM and RISC-V architectures would be great.
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