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[Xen-devel] Re: Paravirtualizing bits of acpi access

To: "Rafael J. Wysocki" <rjw@xxxxxxx>
Subject: [Xen-devel] Re: Paravirtualizing bits of acpi access
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Sat, 21 Mar 2009 21:26:00 -0700
Cc: "Brown, Len" <len.brown@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, linux-acpi@xxxxxxxxxxxxxxx
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Rafael J. Wysocki wrote:
Well, why don't you implement the platform suspend operations for Xen?
I guess you don't want ACPI _PTS to be executed during suspend as well.

I don't know.  What's _PTS?

I think for the most part we want Linux to do most of the acpi work of bringing the machine into an idle state. Its just that Xen is responsible for the very low level cpu context save/restore, because the Linux kernel is still running on vcpus rather than the physical cpus.

   J

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