From: kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Date: Thu, 13 Apr 2006 09:12:16 +0000 (+0100)
Subject: Unmap shadow vtable when freeing shadow table in free_shadow_pages().
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~16158^2~2^2~40
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=5c0d85e6799f7b3184d0c75ab07c80ecdc7bfb3d;p=xen.git

Unmap shadow vtable when freeing shadow table in free_shadow_pages().

Signed-off-by: Xin Li <xin.b.li@intel.com>
---

diff --git a/xen/arch/x86/shadow32.c b/xen/arch/x86/shadow32.c
index 0af335f623..458bb99555 100644
--- a/xen/arch/x86/shadow32.c
+++ b/xen/arch/x86/shadow32.c
@@ -583,6 +583,13 @@ static void free_shadow_pages(struct domain *d)
         {
             put_shadow_ref(pagetable_get_pfn(v->arch.shadow_table));
             v->arch.shadow_table = mk_pagetable(0);
+
+            if ( shadow_mode_external(d) )
+            {
+                if ( v->arch.shadow_vtable )
+                    unmap_domain_page_global(v->arch.shadow_vtable);
+                v->arch.shadow_vtable = NULL;
+            }
         }
 
         if ( v->arch.monitor_shadow_ref )
diff --git a/xen/arch/x86/shadow_public.c b/xen/arch/x86/shadow_public.c
index 58edcb552a..eee8fadb3e 100644
--- a/xen/arch/x86/shadow_public.c
+++ b/xen/arch/x86/shadow_public.c
@@ -898,6 +898,13 @@ void free_shadow_pages(struct domain *d)
         {
             put_shadow_ref(pagetable_get_pfn(v->arch.shadow_table));
             v->arch.shadow_table = mk_pagetable(0);
+
+            if ( shadow_mode_external(d) )
+            {
+                if ( v->arch.shadow_vtable )
+                    unmap_domain_page_global(v->arch.shadow_vtable);
+                v->arch.shadow_vtable = NULL;
+            }
         }
 
         if ( v->arch.monitor_shadow_ref )