[Xen-changelog] [xen stable-4.2] x86/HAP: also flush TLB when altering a present 1G or intermediate entry

[patchbot@xxxxxxx]

commit 50ea806e2cbb6160a12da98132ad2349d9c8c9f3
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Mon May 12 17:31:37 2014 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon May 12 17:31:37 2014 +0200

    x86/HAP: also flush TLB when altering a present 1G or intermediate entry
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Tim Deegan <tim@xxxxxxx>
    master commit: c82fbfe6ec8be597218eb943641d1f7a81c4c01e
    master date: 2014-04-14 15:14:47 +0200
---
 xen/arch/x86/mm/hap/hap.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c
index b150fc7..a9eb35d 100644
--- a/xen/arch/x86/mm/hap/hap.c
+++ b/xen/arch/x86/mm/hap/hap.c
@@ -887,9 +887,8 @@ hap_write_p2m_entry(struct vcpu *v, unsigned long gfn, 
l1_pgentry_t *p,
     }
 
     safe_write_pte(p, new);
-    if ( (old_flags & _PAGE_PRESENT)
-         && (level == 1 || (level == 2 && (old_flags & _PAGE_PSE))) )
-             flush_tlb_mask(d->domain_dirty_cpumask);
+    if ( old_flags & _PAGE_PRESENT )
+        flush_tlb_mask(d->domain_dirty_cpumask);
 
 #if CONFIG_PAGING_LEVELS == 3
     /* install P2M in monitor table for PAE Xen */
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.2

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