This patch series enables IOMMU support for pseries Secure VMs. Tested using QEMU command line option:
"-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4, iommu_platform=on,disable-modern=off,disable-legacy=on" and "-device virtio-blk-pci,scsi=off,bus=pci.0, addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0, iommu_platform=on,disable-modern=off,disable-legacy=on" changelog: v3: Better description of 2/2 patch. Suggested by David Gibson. v2: added comments describing the changes. Suggested by Alexey and Michael Ellermen. Ram Pai (2): powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor. powerpc/pseries/iommu: Use dma_iommu_ops for Secure VMs aswell. arch/powerpc/platforms/pseries/iommu.c | 34 +++++++++++++++++++++------------- 1 file changed, 21 insertions(+), 13 deletions(-) -- 1.8.3.1