Re: [Xen-users] not enough resources

[Matthias <matthias.kannenberg@xxxxxxxxxxxxxx>]

What xen version are you using and are you using qemu traditional or upstream?

There is an issue with upstream qemu that vga passthrough does not work with >=4GB assigned (because of some misalignement in ram regions with normal ram and vga ram, iirc).

I think there were some patches in latest xen 4.5 who addressed this issue (http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=d06886694328a31369addc1f614cf326728d65a6 maybe?) but I don't know what the status is right now and if this is fully solved yet..

Also, this is an upstream-qemu problem only and everything should work fine with qemu-traditional and secondary passthrough.

2014-06-27 20:21 GMT+02:00 jacek burghardt <jaceksburghardt@xxxxxxxxx>:

Well I can bootup with 3.5GB

On Fri, Jun 27, 2014 at 11:11 AM, Austin S Hemmelgarn <ahferroin7@xxxxxxxxx> wrote:

On 2014-06-27 12:43, jacek burghardt wrote:
> So my xen desktop has only 8gb of ram. I had assigned 2gb of ram to dom0
> and 3gb to win8 with assigned 6450. I was trying to assign 4GB of ram
> and then HD 6450 has an error with 4gb not enough resource. with 3gb
> everything works great.
> Is this bug in xen or I need more ram?
>
>

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It's probably an issue with how Windows lays out it's memory.

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