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

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

Hi Keir, just rebased it to 10199, can you pls take a look?
Thanks
-Xin 


>
>support HVM guests with more than 3.75G memory.
>Changes are:
>1) M2P table and e820 table are changed to skip address space from
>HVM_RAM_LIMIT_BELOW_4G to 4G.
>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
>HVM_RAM_LIMIT_BELOW_4G RAM.
>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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