[Xen-devel] [PATCH for-next RFC 0/8] Port Xen to Hyper-V

From: Wei Liu <wl@xen.org>
To: Xen Development List <xen-devel@lists.xenproject.org>
Cc: "Wei Liu" <liuwe@microsoft.com>, "Wei Liu" <wl@xen.org>,
	"Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Michael Kelley" <mikelley@microsoft.com>,
	"Jan Beulich" <jbeulich@suse.com>,
	"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH for-next RFC 0/8] Port Xen to Hyper-V
Date: Mon, 23 Sep 2019 11:09:23 +0100	[thread overview]
Message-ID: <20190923100931.29670-1-liuwe@microsoft.com> (raw)

Hi all

In case you're wondering, I can already run a fully fledged Xen system on
Hyper-V with emulated disk and network.

This is the very first stage for porting Xen to run on Hyper-V with all the
goodies Hyper-V has to offer.  With this series, Xen can successfully detect
Hyper-V and prints out a message.  I would like to first get the directory
structure and kconfig options agreed upon.

There are two major areas to be worked on:
  * Make Dom0 able to use Hyper-V's synthetic devices.
  * Make Xen use of the synthetic timer, reference TSC and enlightenment VMCS
    and other interfaces.

They aren't trivial, and time can be scarce on my side, so I intend to post
patches piece meal when they are ready.

Questions and comments are welcome.

Thanks,
Wei.

Cc: Jan Beulich <jbeulich@suse.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Wei Liu <wl@xen.org>
Cc: Roger Pau Monné <roger.pau@citrix.com>

Wei Liu (8):
  x86: introduce CONFIG_GUEST and move code
  x86: include asm_defns.h directly in hypercall.h
  x86: drop hypervisor_cpuid_base
  x86: factor out xen variants for hypervisor setup code
  x86: factor out hypervisor agnostic code
  x86: make probe_xen return boolean value
  x86: introduce CONFIG_HYPERV and hyperv directory
  x86: be more verbose when running nested

 xen/arch/x86/Kconfig                          |  13 ++
 xen/arch/x86/Makefile                         |   2 +-
 xen/arch/x86/guest/Makefile                   |   6 +-
 xen/arch/x86/guest/hyperv/Makefile            |   1 +
 xen/arch/x86/guest/hyperv/hyperv.c            |  63 ++++++++++
 xen/arch/x86/guest/hypervisor.c               | 116 ++++++++++++++++++
 xen/arch/x86/guest/xen/Makefile               |   4 +
 xen/arch/x86/guest/{ => xen}/hypercall_page.S |   0
 xen/arch/x86/guest/{ => xen}/pvh-boot.c       |   0
 xen/arch/x86/guest/{ => xen}/xen.c            |  73 ++---------
 xen/arch/x86/pv/shim.c                        |   2 +-
 xen/arch/x86/setup.c                          |  11 ++
 xen/include/asm-x86/guest.h                   |   2 +
 xen/include/asm-x86/guest/hypercall.h         |   2 +
 xen/include/asm-x86/guest/hyperv.h            |  48 ++++++++
 xen/include/asm-x86/guest/hypervisor.h        |  58 +++++++++
 xen/include/asm-x86/guest/xen.h               |  23 +---
 17 files changed, 337 insertions(+), 87 deletions(-)
 create mode 100644 xen/arch/x86/guest/hyperv/Makefile
 create mode 100644 xen/arch/x86/guest/hyperv/hyperv.c
 create mode 100644 xen/arch/x86/guest/hypervisor.c
 create mode 100644 xen/arch/x86/guest/xen/Makefile
 rename xen/arch/x86/guest/{ => xen}/hypercall_page.S (100%)
 rename xen/arch/x86/guest/{ => xen}/pvh-boot.c (100%)
 rename xen/arch/x86/guest/{ => xen}/xen.c (80%)
 create mode 100644 xen/include/asm-x86/guest/hyperv.h
 create mode 100644 xen/include/asm-x86/guest/hypervisor.h

-- 
2.20.1

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