Re: [Xen-devel] dmidecode doesn't work under xen 4.1.1 on certain hardware

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

> >> (XEN) WARNING: Only the first 16 GB of the physical memory map can be 
> >> accessed by Xen in 32-bit mode.
> > That bites ^^^^
> >> (XEN) Truncating RAM from 17825792kB to 16777216kB
> Does this mean that 32 bit Xen can only use a maximum of 16GB of RAM?
> 
> If so, is there a way to use 32 bit Xen tools with a 64 bit Xen hypervisor?

Yes. I've been doing that without any trouble.
> 
> >> (XEN) Xen-e820 RAM map:
> >> (XEN)  0000000000000000 - 0000000000099800 (usable)
> >> (XEN)  0000000000099800 - 00000000000a0000 (reserved)
> >> (XEN)  00000000000e4000 - 0000000000100000 (reserved)
> >> (XEN)  0000000000100000 - 00000000bf780000 (usable)
> >> (XEN)  00000000bf78e000 - 00000000bf790000 type 9
> > Ok, so this patch should shed some light and potentially fix your problem. 
> > Please
> > try it out and attach the serial log for Linux kernel. Thx.
> The patch works perfectly. I've attached a copy of the kernel log with
> 'debug loglevel=8'

Yeeey! Great. Thanks for testing it. We are re-doing that whole E820 parsing
for the next version of Linux (3.2) so will integrate the "essence" of that
patch.

Would you be up for testing a different variant of that patch just to make
sure?

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