Re: [PATCH v5 1/8] s390/mm: force swiotlb for protected virtualization

2019-07-11 Thread Thiago Jung Bauermann
Hello Halil, Halil Pasic writes: > On s390, protected virtualization guests have to use bounced I/O > buffers. That requires some plumbing. > > Let us make sure, any device that uses DMA API with direct ops correctly > is spared from the problems, that a hypervisor attempting I/O to a >

Re: [PATCH v5 1/8] s390/mm: force swiotlb for protected virtualization

2019-06-13 Thread Michael Mueller
On 12.06.19 13:12, Halil Pasic wrote: On s390, protected virtualization guests have to use bounced I/O buffers. That requires some plumbing. sed 's/ / /' Let us make sure, any device that uses DMA API with direct ops correctly is spared from the problems, that a hypervisor attempting

[PATCH v5 1/8] s390/mm: force swiotlb for protected virtualization

2019-06-12 Thread Halil Pasic
On s390, protected virtualization guests have to use bounced I/O buffers. That requires some plumbing. Let us make sure, any device that uses DMA API with direct ops correctly is spared from the problems, that a hypervisor attempting I/O to a non-shared page would bring. Signed-off-by: Halil