Re: [Xen-devel] [Xen-users] xl info displays less ram than the total available

[blallo@xxxxxxxxxx]

blallo@xxxxxxxxxx:
> Konrad Rzeszutek Wilk:
> > On Thu, Oct 06, 2016 at 12:59:13PM +0200, Blallo wrote:
> > > I'm using grub2. After the lunch break I can post the full grub menu entry and 
> > > the exact version of grub2.
> > Cc-ing Daniel (who is now an GRUB2 maintainer).
> >
> > Is this by chance an EFI box?And you are booting using EFI GRUB2?
> > > On 6 October 2016 12:55:16 CEST, George Dunlap <george.dunlap@xxxxxxxxxx> wrote:
> > > > On Wed, Oct 5, 2016 at 3:01 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
> > > > > > > > On 05.10.16 at 15:32, <blallo@xxxxxxxxxx> wrote:
> > > > > > Here it comes xl dmesg with Xen booted with e820-verbose=true
> > > > > I have to admit that the only way I can see
> > > > >
> > > > > (XEN) Initial Xen-e820 RAM map:
> > > > > (XEN)  0000000000000000 - 000000000009ec00 (usable)
> > > > > (XEN)  000000000009ec00 - 00000000000a0000 (reserved)
> > > > > (XEN)  00000000000e0000 - 0000000000100000 (reserved)
> > > > > (XEN)  0000000000100000 - 0000000079cbe000 (usable)
> > > > > (XEN)  0000000079cbe000 - 00000000bcd2f000 (reserved)
> > > > > (XEN)  00000000bcd2f000 - 00000000bce7f000 (ACPI NVS)
> > > > > (XEN)  00000000bce7f000 - 00000000bceff000 (ACPI data)
> > > > > (XEN)  00000000bceff000 - 00000000bfa00000 (reserved)
> > > > > (XEN)  00000000f8000000 - 00000000fc000000 (reserved)
> > > > > (XEN)  00000000fec00000 - 00000000fec01000 (reserved)
> > > > > (XEN)  00000000fed08000 - 00000000fed09000 (reserved)
> > > > > (XEN)  00000000fed10000 - 00000000fed18000 (reserved)
> > > > > (XEN)  00000000fed18000 - 00000000fed19000 (reserved)
> > > > > (XEN)  00000000fed19000 - 00000000fed1a000 (reserved)
> > > > > (XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
> > > > > (XEN)  00000000fee00000 - 00000000fee01000 (reserved)
> > > > > (XEN)  00000000ffc00000 - 0000000100000000 (reserved)
> > > > > (XEN)  0000000100000000 - 000000043e600000 (reserved)
> > > > >
> > > > > having all those reserved regions above 2Gb is for the boot
> > > > > loader to behave oddly. Since Linux and Xen use different paths
> > > > > in the boot loader, one can't really draw conclusions from Linux
> > > > > getting to see a better memory map.
> > > > Do you have any suggestions for how to check whether it really is the
> > > > bootloader?
> > > >
> > > > Leonardo, are you using grub2 or a different bootloader?
>
> Hi everybody,
> first of all, thanks for all the effort you're putting in this issue of
> mine. Secondly, I apologize for the top quoting of my last email: I was
> on my mobile.
>
> Konrad, yes, I boot using efi grub2. The version is
>
> % grub-install -V
> grub-install (GRUB) 2.02~beta3
>
> as obtained from the Arch repos.
>
> I attach the custom /etc/grub.d/ script I use to generate the grub menu
> entry for Xen booting. It is largely taken by the original one I use to
> boot into the ordinary Arch kernel.
Sorry, forgot to attach the file :)

Here it is.

--
Leonardo

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