Re: [PATCH v9 0/5] iommu: Bounce page for untrusted devices

[Konrad Rzeszutek Wilk]

On Tue, Sep 10, 2019 at 04:53:23PM +0200, Joerg Roedel wrote:
> On Fri, Sep 06, 2019 at 02:14:47PM +0800, Lu Baolu wrote:
> > Lu Baolu (5):
> >   swiotlb: Split size parameter to map/unmap APIs
> >   iommu/vt-d: Check whether device requires bounce buffer
> >   iommu/vt-d: Don't switch off swiotlb if bounce page is used
> >   iommu/vt-d: Add trace events for device dma map/unmap
> >   iommu/vt-d: Use bounce buffer for untrusted devices
> > 
> >  .../admin-guide/kernel-parameters.txt         |   5 +
> >  drivers/iommu/Kconfig                         |   1 +
> >  drivers/iommu/Makefile                        |   1 +
> >  drivers/iommu/intel-iommu.c                   | 310 +++++++++++++++++-
> >  drivers/iommu/intel-trace.c                   |  14 +
> >  drivers/xen/swiotlb-xen.c                     |   8 +-
> >  include/linux/swiotlb.h                       |   8 +-
> >  include/trace/events/intel_iommu.h            | 106 ++++++
> >  kernel/dma/direct.c                           |   2 +-
> >  kernel/dma/swiotlb.c                          |  30 +-
> >  10 files changed, 449 insertions(+), 36 deletions(-)
> >  create mode 100644 drivers/iommu/intel-trace.c
> >  create mode 100644 include/trace/events/intel_iommu.h
> 
> Applied, thanks.

Please un-apply the swiotlb until the WARN_ON gets fixed. Or alternatively
squash the fix once that is done.