Re: [Xen-devel] [PATCH] add support for XCHG instruction accessingAPIC

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 5 Apr 2006, at 17:50, Jiang, Yunhong wrote:

> I think the reason we don't take any lock here is; we are sure this is 
> just used for local APIC range. However, if in future someone adds 
> another MMIO range or if IOAPIC is accessed with XCHG (will this 
> happen?), this may have potential issue.
> So I'd suggest adding comments that we didn't take any lock here, or 
> add a check to make sure the range is on local APIC range.
There is a comment in the patch I applied, and that section of code is 
specific to LAPIC handling.
 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel