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Re: [Qemu-devel] [v5][PATCH 0/4] xen: introduce new machine for IGD pass

From: Chen, Tiejun
Subject: Re: [Qemu-devel] [v5][PATCH 0/4] xen: introduce new machine for IGD passthrough
Date: Thu, 14 Aug 2014 15:23:20 +0800
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 2014/8/14 15:09, Michael S. Tsirkin wrote:
On Tue, Aug 12, 2014 at 05:49:13PM +0800, Tiejun Chen wrote:

* Simplify to make sure its really inherited from the standard one in patch #3
* Then drop the original patch #3


* Rebase on latest tree
* Drop patch #2
* Regenerate patches after Michael introduce patch #1
* We need to use this pci_type as a index to reuse I440FX_PCI_DEVICE()
* Test: boot with a preinstalled winxp
   ./i386-softmmu/qemu-system-i386 -hda winxp-32.img -m 2560 -boot c -machine pc


* Drop patch #4
* Add one patch #1 from Michael
* Rebase
* In./i386-softmmu/qemu-system-i386 -hda test.img -m 2560 -boot c -machine pc


* Fix some coding style
* New patch to separate i440fx_init
* Just add prefix with XEN_IGD_PASSTHROUGH/xen_igd_passthrough
* Based on patch #2 to regenerate
* Unify prefix with XEN_IGD_PASSTHROUGH/xen_igd_passthrough like patch #3
* Test: boot with a preinstalled ubuntu 14.04
   ./i386-softmmu/qemu-system-i386 -hda test.img -m 2560 -boot c -machine pc

As we discussed we need to create a separate machine to support current
IGD passthrough.

That's a clean way to add a new machine so I will queue this up, but I
note this does not do anything by itself. So I'll keep it in my queue -

Yes, currently its just useless.

As you know, to support IGD passthrough involves many things, qemu, xen, native driver, and so forth. So I want to send them separately to avoid too many comments I need to address one time.

this way you don't need to re-post - but I think we should defer merging
until we see the actual users.


Looks I can start to step next to push forward the remains.

Thanks for your time and comments.


Michael S. Tsirkin (1):
       i440fx: make types configurable at run-time

Tiejun Chen (3):
       pc_init1: pass parameters just with types
       xen:hw:pci-host:piix: create host bridge to passthrough
       xen:hw:i386:pc_piix: introduce new machine for IGD passthrough

  hw/i386/pc_piix.c    | 60 
  hw/pci-host/piix.c   | 24 +++++++++++++++++++-----
  include/hw/i386/pc.h |  8 +++++++-
  3 files changed, 81 insertions(+), 11 deletions(-)


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