[Xen-changelog] [xen-3.4-testing] New release of C/S 19894 "Disable memory mapping warnings when stub

["Xen patchbot-3.4-testing" <patchbot-3.4-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1267444870 0
# Node ID 1cdf837cd5ef635f998e14620905fb31b7a6e54c
# Parent  fa6ee088d915e53c075fb5c6e225f5200e1a0a99
New release of C/S 19894 "Disable memory mapping warnings when stub
domain is used."

This is backport from xen-unstable.

Signed-off-by: Daniel Kiper <dkiper@xxxxxxxxxxxx>
---
 xen/arch/x86/mm.c               |    6 +++---
 xen/arch/x86/mm/shadow/common.c |    6 ++----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff -r fa6ee088d915 -r 1cdf837cd5ef xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c Fri Feb 26 17:10:48 2010 +0000
+++ b/xen/arch/x86/mm.c Mon Mar 01 12:01:10 2010 +0000
@@ -3932,6 +3932,9 @@ long arch_memory_op(int op, XEN_GUEST_HA
 
         domain_lock(d);
 
+        if ( page )
+            put_page(page);
+
         /* Remove previously mapped page if it was present. */
         prev_mfn = gmfn_to_mfn(d, xatp.gpfn);
         if ( mfn_valid(prev_mfn) )
@@ -3953,9 +3956,6 @@ long arch_memory_op(int op, XEN_GUEST_HA
         rc = guest_physmap_add_page(d, xatp.gpfn, mfn, 0);
 
         domain_unlock(d);
-
-        if ( page )
-            put_page(page);
 
         rcu_unlock_domain(d);
 
diff -r fa6ee088d915 -r 1cdf837cd5ef xen/arch/x86/mm/shadow/common.c
--- a/xen/arch/x86/mm/shadow/common.c   Fri Feb 26 17:10:48 2010 +0000
+++ b/xen/arch/x86/mm/shadow/common.c   Mon Mar 01 12:01:10 2010 +0000
@@ -2584,11 +2584,9 @@ int sh_remove_all_mappings(struct vcpu *
     {
         /* Don't complain if we're in HVM and there are some extra mappings: 
          * The qemu helper process has an untyped mapping of this dom's RAM 
-         * and the HVM restore program takes another. Additionally, if stub
-         * domain is active then it also has an untyped mapping of original
-         * domain's RAM. */
+         * and the HVM restore program takes another. */
         if ( !(shadow_mode_external(v->domain)
-               && (page->count_info & PGC_count_mask) <= 4
+               && (page->count_info & PGC_count_mask) <= 3
                && (page->u.inuse.type_info & PGT_count_mask) == 0) )
         {
             SHADOW_ERROR("can't find all mappings of mfn %lx: "

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