From 9791f98d8abf4d11f327026b12ea8b417efbd4fb Mon Sep 17 00:00:00 2001 From: "awilliam@xenbuild2.aw" Date: Thu, 7 Dec 2006 15:02:37 -0700 Subject: [PATCH] [IA64] allow foreign domain page mapping of DOMID_XEN/DOMID_IO DOMID_XEN is used by xenmon, xentrace. Signed-off-by: Isaku Yamahata --- xen/arch/ia64/xen/mm.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/xen/arch/ia64/xen/mm.c b/xen/arch/ia64/xen/mm.c index dbf1908c18..0a5acc0636 100644 --- a/xen/arch/ia64/xen/mm.c +++ b/xen/arch/ia64/xen/mm.c @@ -1295,11 +1295,13 @@ __dom0vp_add_physmap(struct domain* d, unsigned long gpfn, if (unlikely(rd == d)) goto out1; - if (is_gmfn) { - if (domid == DOMID_XEN || domid == DOMID_IO) - goto out1; + /* + * DOMID_XEN and DOMID_IO don't have their own p2m table. + * It can be considered that their p2m conversion is p==m. + */ + if (likely(is_gmfn && domid != DOMID_XEN && domid != DOMID_IO)) mfn = gmfn_to_mfn(rd, mfn_or_gmfn); - } else + else mfn = mfn_or_gmfn; if (unlikely(!mfn_valid(mfn) || get_page(mfn_to_page(mfn), rd) == 0)) goto out1; -- 2.30.2