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RE: [Xen-ia64-devel] RFC: ptc.ga implementation for SMP-g

To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>, "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-ia64-devel] RFC: ptc.ga implementation for SMP-g
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Wed, 5 Apr 2006 11:12:14 +0800
Delivery-date: Tue, 04 Apr 2006 20:13:05 -0700
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Thread-topic: [Xen-ia64-devel] RFC: ptc.ga implementation for SMP-g
>From: Tian, Kevin
>Sent: 2006年4月5日 10:05
>
>Linux allows two processes to share same address space. In that case,
>it's possible that two LPs refer to same page table simultaneously. So this
>assertion doesn't hold true. :-)
>
Yes, region 5 is shared by all processes.
For further thinking, IPI seems to be unavoidable to emulate ptc.ga.

>Thanks,
>Kevin

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