Current npt and shadow code to get an entry will always return
INVALID_MFN for foreign entries. Allow to return the entry mfn for
foreign entries, like it's done for grant table entries.
Signed-off-by: Roger Pau Monné <roger....@citrix.com>
---
Cc: George Dunlap <george.dun...@eu.citrix.com>
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
Cc: Wei Liu <wei.l...@citrix.com>
---
xen/arch/x86/mm/p2m-pt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/mm/p2m-pt.c b/xen/arch/x86/mm/p2m-pt.c
index 6238043aa6..973261a3a8 100644
--- a/xen/arch/x86/mm/p2m-pt.c
+++ b/xen/arch/x86/mm/p2m-pt.c
@@ -852,7 +852,8 @@ pod_retry_l1:
unmap_domain_page(l1e);
ASSERT(mfn_valid(mfn) || !p2m_is_ram(*t) || p2m_is_paging(*t));
- return (p2m_is_valid(*t) || p2m_is_grant(*t)) ? mfn : INVALID_MFN;
+ return (p2m_is_valid(*t) || p2m_is_grant(*t) || p2m_is_foreign(*t))
+ ? mfn : INVALID_MFN;
}
static void p2m_pt_change_entry_type_global(struct p2m_domain *p2m,
--
2.20.1
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