From: PUCCETTI Armand <armand.puccetti@cea.fr>
To: xen-devel@lists.xensource.com
Subject: paging
Date: Wed, 02 Aug 2006 17:55:28 +0200 [thread overview]
Message-ID: <44D0CAF0.3050506@cea.fr> (raw)
I have a few easy questions about the xen code doing paging on AMD64.
How is the page translation function virt-to-phys (AMD64 arch programmer
manual, page 147)
implemented ? Refining,
- In file /xen/include/asm-x86/page.h: what are the functions
lXe_get_pfn, lXe_get_intpte, lXe_get_paddr, lXe_get_page, lXe_from_paddr
(for X=1,..4) doing?
- One set of functions puzzles me: l4e_to_l3e, l3e_to_l2e and
l2e_to_l1e. The comment says "Pagetable
walking"... but what does this mean? do they help to move from one
page map to another?
- In what variables are the real page tables (l4 to l1) stored?
- Does the code implement only long-mode page translation for AMD64?
- Is there anything explaining page.h, page_alloc.c and mm.c ?....
thanks and sorry for the trivial questions.
Armand
next reply other threads:[~2006-08-02 15:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-02 15:55 PUCCETTI Armand [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-08-02 22:37 paging Huang2, Wei
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