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Re: [Xen-devel] Re: vt-d p7p55d evo

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Re: vt-d p7p55d evo
From: Mark Hurenkamp <mark.hurenkamp@xxxxxxxxx>
Date: Fri, 9 Apr 2010 01:57:56 +0200
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, listmail <listmail@xxxxxxxxxxxx>
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Hi,

I replaced the i5 with an i7 CPU, and now xen seems to enable vtd properly,
i have yet  to test the feature with my board, but xm info now shows the 
hvm_directio flag:
host                   : coruscant
release                : 2.6.32.11mh18
version                : #10 SMP PREEMPT Wed Apr 7 23:57:39 CEST 2010
machine                : x86_64
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 3660
hw_caps                : 
bfebfbff:28100800:00000000:00001b40:0098e3fd:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 7975
free_memory            : 2425
node_to_cpu            : node0:0-7
node_to_memory         : node0:2425
node_to_dma32_mem      : node0:1310
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Wed Apr 07 12:38:28 2010 +0100 21091:f28f1ee587c8
xen_commandline        : console_to_ring com1=115200,8n1 console=com1
cc_compiler            : gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9)
cc_compile_by          : root
cc_compile_domain      : karpeer.net
cc_compile_date        : Wed Apr  7 23:16:01 CEST 2010
xend_config_format     : 4


Regards,
Mark.

On Monday 05 April 2010 11:24:36 pm Sander Eikelenboom wrote:
> Hi Mark,
> 
> I guess that's your problem, your cpu doesn't seem to support VT-D, see
> http://ark.intel.com/Product.aspx?id=42915
> 
> Both CPU, chipset and bios most support it ...
> 
> --
> Sander

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