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RE: [Xen-devel] [PATCH] support HVM guests with more than 3.75G memory

To: "Li, Xin B" <xin.b.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH] support HVM guests with more than 3.75G memory
From: "Li, Xin B" <xin.b.li@xxxxxxxxx>
Date: Tue, 15 Aug 2006 23:32:23 +0800
Delivery-date: Tue, 15 Aug 2006 08:33:19 -0700
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Thread-index: Aca8YoRr1I39yCGgQUOLgLDtGAbNfwEG4A5w
Thread-topic: [Xen-devel] [PATCH] support HVM guests with more than 3.75G memory
Hi Keir, just rebased it to 10199, can you pls take a look?

>support HVM guests with more than 3.75G memory.
>Changes are:
>1) M2P table and e820 table are changed to skip address space from
>2) shared io page location, when less than HVM_RAM_LIMIT_BELOW_4G
>memory, it's the last page of RAM as today, or it's the last page of
>3) in qemu-dm address space from HVM_RAM_LIMIT_BELOW_4G to 4G are
>stuffed with mfns starting from 4G, so the 1:1 mapping can still works.
>This is ugly, but another limit check patch as changeset 10757 will
>prevent qemu-dm to access this range.  This ugly stuffing will be
>removed when the patch to remove 1:1 mapping from qemu-dm gets accepted
>in the future.
>Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>

Attachment: 4g_limit.6.patch
Description: 4g_limit.6.patch

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