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Date: Sat, 5 Apr 2008 10:40:18 +0300 From: "Pekka Enberg" <penberg@...helsinki.fi> To: "Avi Kivity" <avi@...ranet.com> Cc: "Pekka Paalanen" <pq@....fi>, linux-kernel@...r.kernel.org, "Ingo Molnar" <mingo@...e.hu>, "Christoph Hellwig" <hch@...radead.org>, "Arjan van de Ven" <arjan@...radead.org>, "Pavel Roskin" <proski@....org>, "Steven Rostedt" <rostedt@...dmis.org>, "Peter Zijlstra" <a.p.zijlstra@...llo.nl>, vegard.nossum@...il.com Subject: Re: mmiotrace bug: recursive probe hit On Sat, Apr 5, 2008 at 10:36 AM, Avi Kivity <avi@...ranet.com> wrote: > It should not be too difficult to modify x86_emulate.c to do everything > through a function vector. However there is a simpler (for you) solution: > run the driver-to-be-reverse-engineered in a kvm guest, and modify kvm > userspace to log accesses to mmio regions. This requires the not-yet-merged > pci passthrough support. You can reverse engineer Windows drivers with this > as well. > > This won't work for kmemcheck smp though. For kmemcheck, I'd prefer the per-CPU page tables suggested by Ingo. I'm having hard time understanding why that's a "ugly hack" compared to using kvm for this... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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