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Re: [Xen-devel] [PATCH] Fix a bug when ACPI registers in System_Memory
- To: "Chen, Huacai" <huacai.chen@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
- From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
- Date: Tue, 18 Mar 2008 14:57:15 +0000
- Delivery-date: Tue, 18 Mar 2008 08:00:19 -0700
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
- Thread-index: AciInEdr3OVZpgFvQwe3b7g/hoBDvgAbBMCW
- Thread-topic: [Xen-devel] [PATCH] Fix a bug when ACPI registers in System_Memory
I’ve done a more comprehensive update of the Xen ACPI header files (upgraded to Linux 2.6.24). Please re-work your patch against changeset 17231 in xen-unstable staging tree. Avoid changing any header files under xen/include/acpi/ unless you have good reason. Where you take new files from Linux, please use Linux 2.6.24 or newer.
Thanks,
Keir
On 18/3/08 02:03, "Chen, Huacai" <huacai.chen@xxxxxxxxx> wrote:
Hi, all,
Some ACPI registers may be in System_Memory but not System_IO space, For these machines S3 fails since current Xen use I/O instructions (e.g. inb(), outb(), etc.) to access ACPI registers. The patch attached fix the bug by adding GAS (generic address structure) support ported from Linux, which should also benefit later ACPI activity within Xen.
Best regards,
Huacai Chen
Signed-off-by: Huacai Chen <huacai.chen@xxxxxxxxx>
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