From: Alexey Kardashevskiy Date: Tue, 21 May 2013 03:33:11 +0000 (+1000) Subject: powerpc/vfio: Enable on pSeries platform X-Git-Tag: v3.12-rc1~493^2~123 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5b25199eff8e124297e6e95392f1719d20daca89;p=kernel%2Fkernel-generic.git powerpc/vfio: Enable on pSeries platform The enables VFIO on the pSeries platform, enabling user space programs to access PCI devices directly. Signed-off-by: Alexey Kardashevskiy Cc: David Gibson Signed-off-by: Paul Mackerras Acked-by: Alex Williamson Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 86ae364..23fc1dc 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -614,6 +614,7 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus) iommu_table_setparms(pci->phb, dn, tbl); pci->iommu_table = iommu_init_table(tbl, pci->phb->node); + iommu_register_group(tbl, pci_domain_nr(bus), 0); /* Divide the rest (1.75GB) among the children */ pci->phb->dma_window_size = 0x80000000ul; @@ -658,6 +659,7 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus) ppci->phb->node); iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window); ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node); + iommu_register_group(tbl, pci_domain_nr(bus), 0); pr_debug(" created table: %p\n", ppci->iommu_table); } } @@ -684,6 +686,7 @@ static void pci_dma_dev_setup_pSeries(struct pci_dev *dev) phb->node); iommu_table_setparms(phb, dn, tbl); PCI_DN(dn)->iommu_table = iommu_init_table(tbl, phb->node); + iommu_register_group(tbl, pci_domain_nr(phb->bus), 0); set_iommu_table_base(&dev->dev, PCI_DN(dn)->iommu_table); return; } @@ -1184,6 +1187,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev) pci->phb->node); iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window); pci->iommu_table = iommu_init_table(tbl, pci->phb->node); + iommu_register_group(tbl, pci_domain_nr(pci->phb->bus), 0); pr_debug(" created table: %p\n", pci->iommu_table); } else { pr_debug(" found DMA window, table: %p\n", pci->iommu_table); diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 3f3abde..01730b2 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -263,7 +263,7 @@ config SHMOBILE_IOMMU_L1SIZE config SPAPR_TCE_IOMMU bool "sPAPR TCE IOMMU Support" - depends on PPC_POWERNV + depends on PPC_POWERNV || PPC_PSERIES select IOMMU_API help Enables bits of IOMMU API required by VFIO. The iommu_ops diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig index b464687..26b3d9d 100644 --- a/drivers/vfio/Kconfig +++ b/drivers/vfio/Kconfig @@ -12,7 +12,7 @@ menuconfig VFIO tristate "VFIO Non-Privileged userspace driver framework" depends on IOMMU_API select VFIO_IOMMU_TYPE1 if X86 - select VFIO_IOMMU_SPAPR_TCE if PPC_POWERNV + select VFIO_IOMMU_SPAPR_TCE if (PPC_POWERNV || PPC_PSERIES) help VFIO provides a framework for secure userspace device drivers. See Documentation/vfio.txt for more details.