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Re: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge

To: <anthony.perard@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge.
From: Keir Fraser <keir@xxxxxxx>
Date: Fri, 15 Oct 2010 19:34:21 +0100
Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Delivery-date: Fri, 15 Oct 2010 11:35:10 -0700
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Thread-topic: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge.
User-agent: Microsoft-Entourage/12.26.0.100708
We cannot make changes to qemu-dm that are not backwards compatible with
saved guests. Not only does this affect qemu in this case, but the register
blocks you move around also affect Xen's emulation of ACPI pmtimer. Both
will/would need to be configurable based on whether this is an old or new
guest.

Hence this has to be strongly NACKed in its current form.

 -- Keir

On 15/10/2010 18:35, "anthony.perard@xxxxxxxxxx" <anthony.perard@xxxxxxxxxx>
wrote:

> From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
> 
> This two patches are for Xen-unstable and Qemu-DM.
> 
> With the integration of Xen into QEMU, we would like to minimise the change
> and use the ACPI implementation of QEMU. So there are some change to make on
> the firmware to match the QEMU's BIOS. Some IO Ports are different and the
> sleep state values are different.
> 
> Firmware changes:
> 
> Anthony PERARD (1):
>   firmware, Change ACPI IO addresses and values to match QEMU BIOS.
> 
>  tools/firmware/hvmloader/acpi/dsdt.asl |   12 ++++++------
>  tools/firmware/hvmloader/hvmloader.c   |    4 ++++
>  xen/include/public/hvm/ioreq.h         |    6 +++---
>  3 files changed, 13 insertions(+), 9 deletions(-)
> 
> 
> Qemu-Xen changes:
> 
> Anthony PERARD (1):
>   piix4acpi: change in ACPI to match the change in the BIOS.
> 
>  hw/piix4acpi.c |    9 ++++-----
>  1 files changed, 4 insertions(+), 5 deletions(-)



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