[Xen-users] Can't see more than 3.5GB of RAM

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

Hi Everyone,

I am running Ubuntu 12.04 x86_64. My machine has a supermicro 
motherboard X9SCI-LN4F with 32GB of RAM installed. To get Xen, I simply 
did apt-get install xen-hypervisor which gives me Ubuntu's 4.1 xen version.
For some reason, Xen can't see any more than about 3.5GB of RAM. I can 
confirm this by xentop as well as xm info. I am definately running a 
64-bit Dom0 kernel as when I boot into it without Xen, I can see all 
32GB of RAM by running "free -m".
Has anybody come across this issue before? For what it's worth, I'm 
booting my system using UEFI - could that have something to do with it?
Any help is very much appreciated

Thanks

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