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[Xen-ia64-devel] [PATCH] Allocate frame table/mpt table at mfn=0

To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-ia64-devel] [PATCH] Allocate frame table/mpt table at mfn=0
From: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date: Mon, 4 Dec 2006 11:33:53 +0900
Delivery-date: Sun, 03 Dec 2006 18:33:47 -0800
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Allocate frame table/mpt table at mfn=0 even when memory isn't assigned at
mfn=0 as work around of transate_domain_pte().
It returns mfn=0 when the machine page isn't present as a work around
for memory mapped I/O where no device is assigned.
Xen might access page_info of mfn=0, so it must be gurantted
that it exists. Otherwise xen panics with tlb miss fault in xen virtual
address area.
Once transate_domain_pte() is fixed correctly, this will be removed.


Attachment: 12672_6747f2c05836_allocate_table_at_mfn_0.patch
Description: Text document

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