The level passed to ept_invalidate_emt corresponds to the EPT entry
passed as the mfn parameter, which is a pointer to an EPT page table,
hence the entries in that page table will have one level less than the
parent.
Fix the call to atomic_write_ept_entry to pass the correct level, ie:
one level less than the parent.
Fixes: 50fe6e73705 ('pvh dom0: add and remove foreign pages')
Signed-off-by: Roger Pau Monné <roger....@citrix.com>
---
Cc: Jun Nakajima <jun.nakaj...@intel.com>
Cc: Kevin Tian <kevin.t...@intel.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 <w...@xen.org>
Cc: Sergey Dyasli <sergey.dya...@citrix.com>
Cc: Paul Durrant <paul.durr...@citrix.com>
---
xen/arch/x86/mm/p2m-ept.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/mm/p2m-ept.c b/xen/arch/x86/mm/p2m-ept.c
index 6b8468c793..23ae6e9da3 100644
--- a/xen/arch/x86/mm/p2m-ept.c
+++ b/xen/arch/x86/mm/p2m-ept.c
@@ -367,7 +367,7 @@ static bool_t ept_invalidate_emt(struct p2m_domain *p2m,
mfn_t mfn,
e.emt = MTRR_NUM_TYPES;
if ( recalc )
e.recalc = 1;
- rc = atomic_write_ept_entry(p2m, &epte[i], e, level);
+ rc = atomic_write_ept_entry(p2m, &epte[i], e, level - 1);
ASSERT(rc == 0);
changed = 1;
}
--
2.22.0
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