From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: xen can only detect one core of multiple cores cpu Date: Sat, 28 Nov 2015 19:24:15 +0000 Message-ID: <5659FF5F.3080104@citrix.com> References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5018201226873520391==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: quizyjones , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org --===============5018201226873520391== Content-Type: multipart/alternative; boundary="------------010905070605080509090603" --------------010905070605080509090603 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit On 28/11/15 17:23, quizyjones wrote: > I'm using a Intel E5-2603 v3 @ 1.60GHz CPU of 6 cores. However, the > dom0 can only find one core. here are some information that may helps > in analyzing. >>From `xl dmesg` (XEN) ACPI Error (tbxfroot-0218): A valid RSDP was not found [20070126] ... (XEN) SMP motherboard not detected. Xen cannot find any ACPI tables, and finds no secondary CPUs. As a knock-on effect, dom0 only gets one. How is your BIOS configured? Does booting Linux natively work? ~Andrew --------------010905070605080509090603 Content-Type: text/html; charset="UTF-8" Content-Length: 1279 Content-Transfer-Encoding: quoted-printable
On 28/11/15 17:23, quizyjones wrote:
I'm using a =C2=A0Intel E5-2603 v3 @ 1.60GHz CPU of 6 cores. However, the dom0 can only find one core. here are some information that may helps in analyzing.

From `xl dmesg`

(XEN) ACPI Error (tbxfroot-0218): A valid RSDP was not found [20070126]
...
(XEN) SMP motherboard not detected.

Xen cannot find any ACPI tables, and finds no secondary CPUs.=C2=A0 As a knock-on effect, dom0 only gets one.

How is your BIOS configured=3F=C2=A0 Does booting Linux natively work=3F

~Andrew
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