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Re: [Xen-devel] Can't see more than 3.5GB of RAM / UEFI / no e820 memory map detected


  • To: Jonathan Tripathy <jonnyt@xxxxxxxxxxx>
  • From: Keir Fraser <keir.xen@xxxxxxxxx>
  • Date: Tue, 28 Aug 2012 22:41:52 +0100
  • Cc: xen-devel@xxxxxxxxxxxxx
  • Delivery-date: Tue, 28 Aug 2012 21:42:19 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Ac2FZe+Aj02821cYyE6lvcOV3YvR5w==
  • Thread-topic: [Xen-devel] Can't see more than 3.5GB of RAM / UEFI / no e820 memory map detected

On 28/08/2012 22:13, "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx> wrote:

> Keir Fraser wrote:
>> On 28/08/2012 20:36, "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx> wrote:
>> 
>>>>> Thanks for the clarification.
>>>>> 
>>>>> So from a security/reliability standpoint, nothing will be affected by
>>>>> flipping the if block?
>>>> It should simply make it more likely that Xen sees all your RAM. ;)
>>>> 
>>>>    -- Keir
>>>> 
>>>> 
>>> Hi Everyone,
>>> 
>>> I reversed the if block in setup.c and now my server can see the full
>>> 32GB of RAM. I haven't submitted a patch yet as we have run into another
>>> (possibly unrelated to xen) issue with this server build that we are
>>> working on. Once we complete our full testing, a patch will be submitted :)
>> In this case, I will re-make the patch myself and check it in. Since it is a
>> trivial one.
>> 
>>    Thanks,
>>   Keir
> Thanks Keir

Now done. xen-unstable:25786

 -- Keir

> Will this be backported to 4.1?
> 
> Cheers
> 



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