From: Andy King
Date: Fri, 23 Aug 2013 09:33:49 -0700
> This patch adds support for virtual IOMMU to the vmxnet3 module. We
> switch to DMA consistent mappings for anything we pass to the device.
> There were a few places where we already did this, but using pci_blah();
> these have been fixed t
This patch adds support for virtual IOMMU to the vmxnet3 module. We
switch to DMA consistent mappings for anything we pass to the device.
There were a few places where we already did this, but using pci_blah();
these have been fixed to use dma_blah(), along with all new occurrences
where we've rep
Adding Greg, since this will apply to a similar patchset I sent out
for VMCI.
- Original Message -
> From: Andy King
> Date: Tue, 20 Aug 2013 10:33:32 -0700
>
> > We can't just do virt_to_phys() on memory that we pass to the device and
> > expect it to work in presence of a virtual IOMMU
From: Andy King
Date: Tue, 20 Aug 2013 10:33:32 -0700
> We can't just do virt_to_phys() on memory that we pass to the device and
> expect it to work in presence of a virtual IOMMU. We need to add IOMMU
> mappings for such DMAs to work correctly. Fix that with
> pci_alloc_consistent() where poss
We can't just do virt_to_phys() on memory that we pass to the device and
expect it to work in presence of a virtual IOMMU. We need to add IOMMU
mappings for such DMAs to work correctly. Fix that with
pci_alloc_consistent() where possible, or pci_map_single() where the
mapping is short-lived or we
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