From mboxrd@z Thu Jan 1 00:00:00 1970 From: Abhiroop Dabral Subject: AMD NPT support for Xen memory events Date: Tue, 15 Jul 2014 22:38:01 -0600 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============4027371262415804435==" Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org --===============4027371262415804435== Content-Type: multipart/alternative; boundary=20cf301af389de8be304fe48169b --20cf301af389de8be304fe48169b Content-Type: text/plain; charset=UTF-8 Hi, I was looking at the code for the memory events for guest domain in "xen/arch/xen/mm/mem_event.c". In the function "mem_event_domctl()" for the case "XEN_DOMCTL_MEM_EVENT_OP_ACCESS", there is a comment that "Currently only EPT is supported" and then a check is made for the vmx presence and control returns if it is not Intel VT with an error. I am trying to make the memory events working on AMD SVM with NPT support. My question is that is there a specific reason why AMD NPT is supported there? The things I should keep in mind/work on to support the memory events on AMD NPT. (Working on Xen 4.4 on HVM guests (windows XP 32 bit -PAE) thanks --20cf301af389de8be304fe48169b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,

I was looking at the code for the memory events for guest domain= in "xen/arch/xen/mm/mem_event.c". In the function "mem_even= t_domctl()" for the case "XEN_DOMCTL_MEM_EVENT_OP_ACCESS",= =C2=A0there is a comment= that "Currently only EPT is supported" and then a check is made = for the vmx presence and control returns if it is not Intel VT with an erro= r.=C2=A0
I am trying to make the memory = events working on AMD SVM with NPT support.=C2=A0
My question is that is there a = specific reason why AMD NPT is supported there?
The things I should keep in min= d/work on to support the memory events on AMD NPT.
(Working on Xen 4.4 on HVM gues= ts (windows XP 32 bit -PAE)

thanks
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