Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block device (blockfront) * virtual network device (netfront) The patch series is in two parts: 1-12: cleanups to the core kernel, either to fix outright problems, or to add appropriate hooks for Xen 13-21: the Xen guest implementation itself I've tried to make each patch as self-explanatory as possible. The series is based on 2.6.20 + Andi Kleen's firstfloor patches, specifically: page-allocation-hooks-for-vmi-backend paravirt-cpu-batching.patch iopl-handling-for-paravirt-guests smp-boot-hook-for-paravirt vmi-backend-for-paravirt-ops vmi-timer Changes since the previous posting: - made vga not crash when vga hardware isn't present - cleaned up sign issues in xen-console - cleaned up mm-lifetime hooks - blockfront cleanups - other stuff Thanks, J --