Linux stub domains

Linux stub domains are used in QubesOS and OpenXT.

• (2018) Linux-based Device Model Stubdomains in Qubes OS, Marek Marczykowski-Górecki
• (2018) Xen Security Weather Report 2018, Lars Kurth
• (2017) MSI support for PCI device pass-through with stub domains, Simon Gaiser

Upstreaming

todo: add remaining patches

00/17 Add support for qemu-xen runnning in a Linux-based stubdomain:

• Aug 2018, v2 patch
• Jul 2018, v1 patch

05/17 libxl: Handle Linux stubdomain specific QEMU options:

• Jan 2019, v3 patch
• Aug 2018, v2 patch

08/17 xl: add stubdomain related options to xl config parser

• Jul 2018, v1 patch