On Fri, Dec 11, 2015 at 04:54:38PM -0600, Suravee Suthikulpanit wrote:
> Current driver makes assumption that device with devid zero is always
> included in the range of devices to be managed by IOMMU. However,
> certain FW does not include devid zero in IVRS table.
> This has caused IOMMU perf driver to fail to initialize.
Hmm, this is a firmware bug. Is this bug seen in any systems that are
for sale?
> This patch implements a workaround for this case by always assign
> devid zero to be handled by the first IOMMU.
Otherwise its better to fix the firmware than to add workarounds.
Joerg
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