In place kexec

H. Peter Anvin hpa at
Fri Jul 30 01:04:42 EDT 2010

On 07/29/2010 09:41 PM, Eric W. Biederman wrote:
> There isn't a bus master shut off at the core level.  When we did
> the original analysis it turned out that the bus mastering bit
> was implemented on a lot of devices in advisory way, so it didn't
> make sense to count on it.

But does it make sense to not flip the bit for the cases where it is
implemented properly?

> That said it looks like the code to do the shutdown is in
> qla2x00_remove_one so it should be too hard if someone cared to
> extract just the hardware bits.

Charming.  Code is there, just not hooked up.


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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