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Re: [XenPPC] basic Xen achitecture question

from [Jimi Xenidis]

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To:	"Yoder Stuart-B08248" <stuart.yoder@xxxxxxxxxxxxx>
Subject:	Re: [XenPPC] basic Xen achitecture question
From:	Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
Date:	Thu, 1 Feb 2007 17:04:58 -0500
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On Feb 1, 2007, at 4:07 PM, Yoder Stuart-B08248 wrote:


I'm trying to understand the paravirtualization interface
between the OS and Xen.  Here is one thing that's confusing
me--

In Linux, the xen probe() routine calls hpte_init_lpar()
which hooks up some pseries hypervisor MMU routines. These
translate into a plpar_hcall_norets() invocation, but
using pSeries hypervisor opcodes (e.g. H_PUT_TCE).

Related to that I don't see the mmu_update hypercall
used in Linux.

How do the MMU related hypercalls work?

We kept all the MMU and IOMMU related hcalls from PAPR, so thepSeries LPAR paths are jsut fine for us.

The PAPR is availble from the power.org website.
-JX



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