On Wed, Aug 04, 2021 at 05:25:57PM +0100, Catalin Marinas wrote:

On Wed, Aug 04, 2021 at 08:52:34AM -0700, Michael Kelley wrote:

quoted

This series enables Linux guests running on Hyper-V on ARM64
hardware. New ARM64-specific code in arch/arm64/hyperv initializes
Hyper-V and its hypercall mechanism.  Existing architecture
independent drivers for Hyper-V's VMbus and synthetic devices just
work when built for ARM64. Hyper-V code is built and included in
the image and modules only if CONFIG_HYPERV is enabled.

[...]

quoted

Hyper-V on ARM64 runs with a 4 Kbyte page size, but allows guests
with 4K/16K/64K page size. Linux guests with this patch series
work with all three supported ARM64 page sizes.

The Hyper-V vPCI driver at drivers/pci/host/pci-hyperv.c has
x86/x64-specific code and is not being built for ARM64. Enabling
Hyper-V vPCI devices on ARM64 is in progress via a separate set
of patches.

This patch set is based on the linux-next20210720 code tree.

Is it possible to rebase this on top of -rc3? Are there any
dependencies or do you plan to upstream this via a different tree?

Some prerequisite patches are in hyperv-next.

https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/log/?h=hyperv-next

Wei.