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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>, <xen-devel@xxxxxxxxxxxxx>
  • From: Keir Fraser <keir.xen@xxxxxxxxx>
  • Date: Fri, 24 Aug 2012 21:05:50 +0100
  • Delivery-date: Fri, 24 Aug 2012 20:06:38 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Ac2CM9tuGR7Ii8ds4k+RXiz3lJqHug==
  • Thread-topic: [Xen-devel] Can't see more than 3.5GB of RAM / UEFI / no e820 memory map detected

On 24/08/2012 18:39, "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx> wrote:

>> That flipping has nothing to do with UEFI, just with the way grub.efi
>> works.
>> 
>> Proper UEFI support implies use of EFI's boot and run time services,
>> which only xen.efi currently does (and which, for those run time
>> services that get made available for use by Dom0, also requires an
>> enabled Dom0 kernel).
>> 
> 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



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