[Xen-changelog] [xen master] x86/EPT: fix super page splitting when resolving EPT_MISCONFIG VM exits

[patchbot@xxxxxxx]

commit c7ee02d23fde573f0bb145610c984b64d71d20cb
Author:     Jan Beulich <JBeulich@xxxxxxxx>
AuthorDate: Wed Apr 23 07:47:30 2014 +0100
Commit:     Tim Deegan <tim@xxxxxxx>
CommitDate: Thu Apr 24 17:40:58 2014 +0100

    x86/EPT: fix super page splitting when resolving EPT_MISCONFIG VM exits
    
    Reported-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Tim Deegan <tim@xxxxxxx>
---
 xen/arch/x86/mm/p2m-ept.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/xen/arch/x86/mm/p2m-ept.c b/xen/arch/x86/mm/p2m-ept.c
index 8d3051b..5d19965 100644
--- a/xen/arch/x86/mm/p2m-ept.c
+++ b/xen/arch/x86/mm/p2m-ept.c
@@ -353,6 +353,7 @@ bool_t ept_handle_misconfig(uint64_t gpa)
                 {
                     if ( ept_split_super_page(p2m, &e, level, level - 1) )
                     {
+                        atomic_write_ept_entry(&epte[i], e);
                         unmap_domain_page(epte);
                         mfn = e.mfn;
                         continue;
--
generated by git-patchbot for /home/xen/git/xen.git#master

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