From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: Testing xen-arm on Arndale
Date: Fri, 29 Mar 2013 12:50:01 +0000
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To: Julien Grall <julien.grall@citrix.com>
Cc: Anthony Perard <anthony.perard@citrix.com>, Xen Devel <xen-devel@lists.xen.org>, Sengul Thomas <thomas.sengul@gmail.com>, Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
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On Fri, 29 Mar 2013, Julien Grall wrote:
> On 03/29/2013 06:57 AM, Sengul Thomas wrote:
> 
> >> Julien,
> >> do you know whether they need to use the Arndale Linux tree you posted
> >> on the wiki or if a vanilla Linux kernel should be used as DomU kernel?
> >> That's something worth writing down in the wiki page to avoid
> >> confusion.
> >>
> > 
> > Oops, my bad. vanilla Linux kernel 3.8.4 still has the same problem.
> > I did not configure the processor type to Exynos (it was VE) when
> > compiling the kernel.
> > Linux kernel 3.8.4 still has the same problem and I'm digging into it.
> > 
> > If we see the log below, in this time, translation fault happen at level 2.
> > I'm just guessing that page table at hypervisor is not properly set.
> > 
> > (XEN) Guest data abort: Translation fault at level 2
> > (XEN)     gva=10000000
> > (XEN)     gpa=0000000010000000
> > (XEN)     size=2 sign=0 write=0 reg=6
> > (XEN)     eat=0 cm=0 s1ptw=0 dfsc=6
> > (XEN) dom3 IPA 0x0000000010000000
> > (XEN) P2M @ 02ff6400 mfn:0xbfb20
> > (XEN) 1ST[0x0] = 0x00000000bfb236ff
> > (XEN) 2ND[0x80] = 0x0000000000000000
> > (XEN) ----[ Xen-4.3-unstable  arm32  debug=y  Tainted:    C ]----
> > (XEN) CPU:    0
> > (XEN) PC:     803c2f6c
> 
> 
> The xenvm-4.2.dts only works with Versatile Expresss, because the gic is not
> mapped to the right address.

Of course we'll have to fix this at some point, because xenvm is
supposed to be a generic VM device tree interface. One day it will
probably be generated automatically by the Xen tools.