From: Andrew Cooper <andrew.cooper3@citrix.com>
To: John Mok <a9121431@gmail.com>
Cc: Xen-devel List <xen-devel@lists.xen.org>
Subject: Re: [BUG] Only 1 VCPU is detected in Xen 4.1 - "A valid RSDP was not found"
Date: Tue, 22 Jul 2014 10:03:58 +0100 [thread overview]
Message-ID: <53CE28FE.7000706@citrix.com> (raw)
In-Reply-To: <CALYzA8GdYa8BaNtqEYVaHNsAeUcR1pgK-6aGt75_LjtFUJqKjQ@mail.gmail.com>
On 22/07/14 09:26, John Mok wrote:
> Hi Andrew,
>
> Is there any workarounds, e.g. hard-coded or Xen grub parameters of
> ox07f6bd000, such that the Xen hypervisor could detect
> RSDP and parse MP tables correctly ?
>
> Thank you, John Mok
Please stop dropping xen-devel from the CC list.
There is, at present, no override for Xen to manually set the RSDP.
As for the MP table; It appears well formed and actively wrong.
Unless you are specifically looking to do something EFI based, I suggest
you use GPT and legacy boot. There is still a lot of work-in-progress
to get Xen EFI working sensibly. In this specific case, grub is calling
ExitBootServices() before handing off to Xen, leaving Xen functionally
crippled as far as booting goes.
~Andrew
next prev parent reply other threads:[~2014-07-22 9:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-22 4:54 [BUG] Only 1 VCPU is detected in Xen 4.1 - "A valid RSDP was not found" John Mok
2014-07-22 7:50 ` Andrew Cooper
[not found] ` <CALYzA8FXq-0O4hNk0-s1MBhkFQxyFNSmxoMC7yYcJAhh1ic=Ng@mail.gmail.com>
[not found] ` <CALYzA8GdYa8BaNtqEYVaHNsAeUcR1pgK-6aGt75_LjtFUJqKjQ@mail.gmail.com>
2014-07-22 9:03 ` Andrew Cooper [this message]
2014-07-22 9:04 ` John Mok
2014-07-23 15:35 ` Jan Beulich
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