xen/21699-p2m-query-for-type-change.patch

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# HG changeset patch
# User Keir Fraser <keir.fraser@citrix.com>
# Date 1277917902 -3600
# Node ID 7cda3ad44c6d4e799e65b2ffe21e609f50cdb94b
# Parent 81d6471ff1235fde2c30428b920cb6e00ba546d6
Use gfn_to_mfn_query() rather then gfn_to_mfn() when changing P2M types
Use gfn_to_mfn_query() rather then gfn_to_mfn() when changing
P2M types since we do not really want to force a PoD allocation
as a side effect.
Signed-off-by: Paul Durrant <Paul.Durrant@citrix.com>
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -2351,7 +2351,7 @@ p2m_type_t p2m_change_type(struct domain
p2m_lock(d->arch.p2m);
- mfn = gfn_to_mfn(d, gfn, &pt);
+ mfn = gfn_to_mfn_query(d, gfn, &pt);
if ( pt == ot )
set_p2m_entry(d, gfn, mfn, 0, nt);