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[Xen-devel] Multiple Address versus single AS Operating System

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Multiple Address versus single AS Operating System
From: VISHAL MALIK <sunnymak04@xxxxxxxxx>
Date: Thu, 16 Jun 2005 10:42:39 -0700 (PDT)
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My applogies.

VISHAL MALIK <sunnymak04@xxxxxxxxx> wrote:
Date: Thu, 16 Jun 2005 10:39:40 -0700 (PDT)
From: VISHAL MALIK <sunnymak04@xxxxxxxxx>
Subject: Multiple Address versus single AS Operating System
To: xense-devel@xxxxxxxxxxxxxxxxxxx
CC: sunnymak04@xxxxxxxxx

I was wanted to confirm and also find out what people think is the main difference
between multiple address space Operating systems and single address space
operating systems.
Intel is a MAS platform as the cache's are physically indexed whereas
most of the RISC processors have Single Address space Operating system
architecture due to the fact that the caches are virtually indexed.
(in a VI-cache, you access the cache and tlb at the same time).
I have been trying to ask if the above assertion is correct or we can have
a MAS-OS on RISC platforms too? And if yes, then from a hardware
perspective, what is the defining criteria to have a SAS-OS or MAS-OS.
Thanks in advance for help.

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