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[Xen-devel] xentrace and MSR_READ/MSR_WRITE

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Subject: [Xen-devel] xentrace and MSR_READ/MSR_WRITE
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Wed, 7 Jan 2009 18:42:43 +1100
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Thread-topic: xentrace and MSR_READ/MSR_WRITE
I am trying to learn some more about the way windows does TPR writes,
and tried xentrace for the first time.

I did 'xentrace --time-interval=5 xentrace.out' to capture some data,
and then ran it through 'xentrace_format' using the supplied example
defs file. I can see some PF_XEN entries with virt=0xFFFE0080 (address
of TPR), but I want to know the value being written, which I don't think
is there.

I'm also only seeing a handful of those records - I have 4 Windows
domains running on this test machine so there should be plenty of
'action' in those 5 seconds.

Can anyone suggest anything?

Thanks

James

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