Quoting Ram Pai (2019-12-12 00:45:02)
> On Tue, Dec 10, 2019 at 07:43:24PM -0600, Michael Roth wrote:
> > Quoting Ram Pai (2019-12-06 19:12:39)
> > > Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> > > secure guests")
> > > disabled dma_iommu_ops path, for
On Tue, Dec 10, 2019 at 07:43:24PM -0600, Michael Roth wrote:
> Quoting Ram Pai (2019-12-06 19:12:39)
> > Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> > secure guests")
> > disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
> > path
On Wed, Dec 11, 2019 at 12:07:17PM -0600, Michael Roth wrote:
> > io_tlb_start/io_tlb_end are only guaranteed to stay within 4GB and our
> > default DMA window is 1GB (KVM) or 2GB (PowerVM), ok, we can define
> > ARCH_LOW_ADDRESS_LIMIT as 1GB.
>
> True, and limiting allocations to under 1GB might
Quoting Alexey Kardashevskiy (2019-12-11 02:36:29)
>
>
> On 11/12/2019 12:43, Michael Roth wrote:
> > Quoting Ram Pai (2019-12-06 19:12:39)
> >> Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> >> secure guests")
> >> disabled dma_iommu_ops path, for
On 11/12/2019 12:43, Michael Roth wrote:
> Quoting Ram Pai (2019-12-06 19:12:39)
>> Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
>> secure guests")
>> disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
>> path for secure VMs, helped
Quoting Ram Pai (2019-12-06 19:12:39)
> Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> secure guests")
> disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
> path for secure VMs, helped enable dma_direct path. This enabled
> support for
Hello Ram,
Ram Pai writes:
> Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> secure guests")
> disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
> path for secure VMs, helped enable dma_direct path. This enabled
> support for
On 07/12/2019 12:12, Ram Pai wrote:
> Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
> secure guests")
> disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
> path for secure VMs, helped enable dma_direct path. This enabled
> support for
Commit edea902c1c1e ("powerpc/pseries/iommu: Don't use dma_iommu_ops on
secure guests")
disabled dma_iommu_ops path, for secure VMs. Disabling dma_iommu_ops
path for secure VMs, helped enable dma_direct path. This enabled
support for bounce-buffering through SWIOTLB. However it
