[Xen-devel] [PATCH 6 of 6] x86/mm: Locking p2m lookups in shadow mode

[Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>]

 xen/arch/x86/mm/p2m.c |  5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)


Fully synchronized p2m lookups have been added to hap already. Enable that for
shadow mode as well.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>

diff -r 1d8566a05642 -r 8ec52231c03d xen/arch/x86/mm/p2m.c
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -164,7 +164,7 @@ mfn_t __get_gfn_type_access(struct p2m_d
     }
 
     /* For now only perform locking on hap domains */
-    if ( locked && (hap_enabled(p2m->domain)) )
+    if ( locked )
         /* Grab the lock here, don't release until put_gfn */
         gfn_lock(p2m, gfn, 0);
 
@@ -197,8 +197,7 @@ mfn_t __get_gfn_type_access(struct p2m_d
 
 void __put_gfn(struct p2m_domain *p2m, unsigned long gfn)
 {
-    if ( !p2m || !paging_mode_translate(p2m->domain) 
-              || !hap_enabled(p2m->domain) )
+    if ( !p2m || !paging_mode_translate(p2m->domain) )
         /* Nothing to do in this case */
         return;
 

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