Re: [PATCH kernel 2/2] powerpc/pseries/dma: Enable swiotlb

2019-05-12 Thread Alexey Kardashevskiy
On 11/05/2019 08:41, Thiago Jung Bauermann wrote: > > Hello Alexey, > > Thanks! > > I have similar changes in my "Secure Virtual Machine Enablement" > patches, which I am currently preparing for posting again real soon now. > > This is the last version: > > https://lore.kernel.org/linuxppc-

Re: [PATCH kernel 2/2] powerpc/pseries/dma: Enable swiotlb

2019-05-10 Thread Thiago Jung Bauermann
Hello Alexey, Thanks! I have similar changes in my "Secure Virtual Machine Enablement" patches, which I am currently preparing for posting again real soon now. This is the last version: https://lore.kernel.org/linuxppc-dev/20180824162535.22798-1-bauer...@linux.ibm.com/ Alexey Kardashevskiy

[PATCH kernel 2/2] powerpc/pseries/dma: Enable swiotlb

2019-05-06 Thread Alexey Kardashevskiy
So far the pseries platforms has always been using IOMMU making SWIOTLB unnecessary. Now we want secure guests which means devices can only access certain areas of guest physical memory; we are going to use SWIOTLB for this purpose. This allows SWIOTLB for pseries. By default there is no change in