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List:       xen-cvs
Subject:    [Xen-changelog] [xen master] x86/HVM: drop memory_type_changed() call from hvm_set_guest_pat()
From:       patchbot () xen ! org
Date:       2014-08-24 23:36:28
Message-ID: E1XLhKm-0000aa-7z () xenbits ! xen ! org
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commit c94e724a09b309a06257b3cb16db091e76fd881a
Author:     Li Liang <liangx.z.li@intel.com>
AuthorDate: Fri Aug 22 14:34:01 2014 +0200
Commit:     Jan Beulich <jbeulich@suse.com>
CommitDate: Fri Aug 22 14:34:01 2014 +0200

    x86/HVM: drop memory_type_changed() call from hvm_set_guest_pat()
    
    The commit aa9114edd added the needless function call memory_type_changed,
    it is unnessary because the PAT content does not influence the result of
    epte_get_entry_emt(). If it is called, the cache will be flushed excessively
    and make the nested guest very slowly, just like blocked.
    
    Signed-off-by: Li Liang <liangx.z.li@intel.com>
---
 xen/arch/x86/hvm/hvm.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index d40c48e..e8f41c1 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -257,8 +257,6 @@ int hvm_set_guest_pat(struct vcpu *v, u64 guest_pat)
     if ( !hvm_funcs.set_guest_pat(v, guest_pat) )
         v->arch.hvm_vcpu.pat_cr = guest_pat;
 
-    memory_type_changed(v->domain);
-
     return 1;
 }
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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