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[Xen-devel] need explaination on some memory remap code

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] need explaination on some memory remap code
From: Xin Zhao <zhaoxin@xxxxxxxxxxxxxx>
Date: Tue, 25 Jan 2005 18:10:43 -0500 (EST)
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Can someone explain the use of the following codes in blkback.c:

phys_to_machine_mapping[__pa(MMAP_VADDR(pending_idx, i))>>PAGE_SHIFT] =
            FOREIGN_FRAME(phys_seg[i].buffer >> PAGE_SHIFT);

Can someone point me to some reference about the memory organization of
xen? Thanks.

-x


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