linux-kernel - [PATCH v2 0/2] iommu/vt-d: Fault logging improvements

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Date:	Thu, 17 Mar 2016 14:12:19 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	iommu@...ts.linux-foundation.org, dwmw2@...radead.org
Cc:	joe@...ches.com, joro@...tes.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/2] iommu/vt-d: Fault logging improvements

Ratelimit and improve formatting.

v2:

 - Use a single ratelimit state as suggested by Joe Perches, except
   I chose to move it up to dmar_fault() so that it includes the
   "handling fault status reg" pr_err and we can avoid collecting
   entries for logging if we don't plan to print them.
 - Added reformatting changes suggested by Joe Perches.
 - While there is clearly more that could be done with disabling
   fault handling for specific context entries on storm and sending
   errors to drivers, this makes a marked improvement on its own.

Thanks,
Alex

---

Alex Williamson (2):
      iommu/vt-d: Ratelimit fault handler
      iommu/vt-d: Improve fault handler error messages


 drivers/iommu/dmar.c |   47 +++++++++++++++++++++++++++--------------------
 1 file changed, 27 insertions(+), 20 deletions(-)