Re: [PATCH] i386/x86-64 Add nmi watchdog support for new Intel CPUs

From: Andi Kleen
Date: Mon May 15 2006 - 03:24:49 EST


On Monday 15 May 2006 03:50, Venkatesh Pallipadi wrote:

>
> Intel now has support for Architectural Performance Monitoring Counters
> ( Refer to IA-32 Intel Architecture Software Developer's Manual
> http://www.intel.com/design/pentium4/manuals/253669.htm ). This
> feature is present starting from Intel Core Duo and Intel Core Solo processors.

Nice!

> What this means is, the performance monitoring counters and some performance
> monitoring events are now defined in an architectural way (using cpuid).
> And there will be no need to check for family/model etc for these architectural
> events.
>
> Below is the patch to use this performance counters in nmi watchdog driver.
> Patch handles both i386 and x86-64 kernels.

Can you regenerate it against the latest firstfloor tree please?
With Don's x86-64 NMI changes there are a zillion rejects.

-Andi
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