Re: [Xen-devel] Can't set break points with Linux guest in PAE m

To:	Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>, Randy Thelen <rthelen@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] Can't set break points with Linux guest in PAE mode
From:	Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date:	Thu, 05 Oct 2006 09:03:15 +0100
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> Xen thinks you are trying to map a guest pagetable page, and is not allowing
> you write access. This is probably because the virt_to_phys translation code
> that gdbserver is using is broken for PAE. My guess would be that it returns
> the physical address of the PTE that maps the virtual address, rather than
> the physical address that is mapped at the virtual address.

Ah, the lookup function is mapping the PTE page with write permissions. That
won't work. I'll check in a fix.

 -- Keir



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Re: [Xen-devel] Can't set break points with Linux guest in PAE mode