Re: pci-passthrough and shared interrupts

[Ritu kaur <ritu.kaur.us@gmail.com>]

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Pasi,

Installation/compilation of xen source on fedora core went through fine. I
am facing an issue when dom0_mem is set to 1024M. During boot I get the
message

/*********************
Panic on CPU 0
Not enough RAM for domain 0 allocation
**********************/

Same thing happens when dom0_mem is set to 512M

when dom0_mem is set to 256M,  I get following message

/***************************
Panic on CPU 0
Domain 0 allocation is too small for kernel image
****************************/

Is 8GB ram mandatory? In my machine it is 2GB ram, inputs appreciated.

Thanks


On Sun, Oct 3, 2010 at 9:07 AM, Ritu kaur <ritu.kaur.us@gmail.com> wrote:

> Thanks Konrad, I checked my old emails(back in March 2010) to see if I had
> tried this combination when I was testing xcp. I did try this combination
> and the problem I had faced was configuration errors due to IDE_DISK. I
> couldn't get past this problem. Snippets below
>
> /*********************************************************
> Thanks Konrad.
> >
> >    I downloaded new code and still doesn't work(albeit different
> problem). I
> >    will enumerate them below
> >
> >    (Please note 1, 2 and 3 are seen with old xen/next as well). What
> seemed
> >    simple testing of pci passthrough via config changes doesn't seem to
> be
> >    the case.
> >
> >    1. mkinitrd doesn't work in xcp ddk. I get below errors
> >
> >    mkinitrd -f ./initrd-2.6.32.ing 2.6.32
> >    modinfo: could not find module ide-disk
> >    No module ide-disk found for kernel 2.6.32, aborting.
> >
>
> ******************************************************************************************************************/
>
>
>
>
> On Fri, Oct 1, 2010 at 8:58 AM, Konrad Rzeszutek Wilk <
> konrad.wilk@oracle.com> wrote:
>
>> On Fri, Oct 01, 2010 at 08:36:03AM -0700, Ritu kaur wrote:
>> > Hi Konrad,
>> >
>> > Frankly, I am confused. XCP(which is similar to Citrix Xenserver but
>> > open-source and newer-kernel) requires DDK to build a kernel image. If I
>> > understand your suggestion correctly I should be able to
>> >
>> > 1. Take PVOPS kernel code, compile it in XCP DDK and load it into dom0
>> > 2. Take PVOPS kernel code, compile it in domU OS and load it into domU
>> >
>> > then, I should be able to get pci-passthrough + shared interrupts
>> between
>> > devices working correctly?  Please clarify/confirm
>>
>> Yes.
>>
>
>

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