Re: [Xen-devel] xen can only detect one core of multiple cores cpu

["quizy_jones@xxxxxxxxxxx" <quizy_jones@xxxxxxxxxxx>]

Yes, booting ubuntu directly can see 6 cores. The dmesg results from native ubuntu: http://paste.ubuntu.com/13553870/

BIOS setting is http://snag.gy/v8XeJ.jpg  http://snag.gy/hSnDs.jpg  http://snag.gy/pQz7o.jpg http://snag.gy/6TdqJ.jpg

This is the grub.cfg http://paste.ubuntu.com/13553514/

---

quizy_jones@xxxxxxxxxxx

 

From: Andrew Cooper

Date: 2015-11-29 03:24

To: quizyjones; xen-devel@xxxxxxxxxxxxx

Subject: Re: [Xen-devel] xen can only detect one core of multiple cores cpu

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

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