On Fri, Feb 14, 2020 at 04:57:11PM +0000, Robin Murphy wrote: > On 14/02/2020 4:04 pm, Jean-Philippe Brucker wrote: > > With the built-in topology description in place, x86 platforms can now > > use the virtio-iommu. > > > > Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> > > --- > > drivers/iommu/Kconfig | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > > index 068d4e0e3541..adcbda44d473 100644 > > --- a/drivers/iommu/Kconfig > > +++ b/drivers/iommu/Kconfig > > @@ -508,8 +508,9 @@ config HYPERV_IOMMU > > config VIRTIO_IOMMU > > bool "Virtio IOMMU driver" > > depends on VIRTIO=y > > - depends on ARM64 > > + depends on (ARM64 || X86) > > select IOMMU_API > > + select IOMMU_DMA > > Can that have an "if X86" for clarity? AIUI it's not necessary for > virtio-iommu itself (and really shouldn't be), but is merely to satisfy the > x86 arch code's expectation that IOMMU drivers bring their own DMA ops, > right? > > Robin. In fact does not this work on any platform now? > > select INTERVAL_TREE > > help > > Para-virtualised IOMMU driver with virtio. > >
