Re: [Xen-devel] [PATCH] HVM vcpu hotplug: Fix acpi method NTFY bug

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 01/02/2010 11:21, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx> wrote:

> 5. a simple way to solve the issue is, to make sure scan loop of NTFY = scan
> loop of PRSC, and to make sure NTFY always scan 2^n vcpus.
>     However, NTFY scan loop may change in the future, not necessary equal to
> 2^n, and not necessary equal to scan loop of PRSC. That's the reason why I use
> for() loop inside of decision_tree() in method NTFY at the patch I send Jan
> 27. It will work correctly under whatever conditions, and keep mk_dsdt.c
> easier to understand. Decision_tree indeed reduce scan greatly, but it's not
> in key path.

Ah, now I understand!

Okay, how about the attached patch? This fixes the bug by inlining NTFY into
PRSC, and also uses HVM_MAX_VCPUS as appropriate.

Please take a look and also test it. I'll apply it if/when you Ack it.

 -- Keir

Attachment: 00-dsdt
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