From: Jan Beulich <jbeulich@suse.com>
Date: Mon, 14 Apr 2014 13:14:47 +0000 (+0200)
Subject: x86/HAP: also flush TLB when altering a present 1G or intermediate entry
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~5210
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c82fbfe6ec8be597218eb943641d1f7a81c4c01e;p=xen.git

x86/HAP: also flush TLB when altering a present 1G or intermediate entry

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Tim Deegan <tim@xen.org>
---

diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c
index b8c5422a14..71227ef94b 100644
--- a/xen/arch/x86/mm/hap/hap.c
+++ b/xen/arch/x86/mm/hap/hap.c
@@ -711,9 +711,8 @@ 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);
 
     paging_unlock(d);