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1ca55d50e5
In order to reuse generic IOMMU device tree bindings by Xen grant DMA-mapping layer we need to add this stub driver from a fw_devlink perspective (grant-dma-ops cannot be converted into the proper IOMMU driver). Otherwise, just reusing IOMMU bindings (without having a corresponding driver) leads to the deferred probe timeout afterwards, because the IOMMU device never becomes available. This stub driver does nothing except registering empty iommu_ops, the upper layer "of_iommu" will treat this as NO_IOMMU condition and won't return -EPROBE_DEFER. As this driver is quite different from the most hardware IOMMU implementations and only needed in Xen guests, place it in drivers/xen directory. The subsequent commit will make use of it. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Link: https://lore.kernel.org/r/1654197833-25362-7-git-send-email-olekstysh@gmail.com Signed-off-by: Juergen Gross <jgross@suse.com>
43 lines
1.7 KiB
Makefile
43 lines
1.7 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o
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obj-y += grant-table.o features.o balloon.o manage.o time.o
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obj-y += mem-reservation.o
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obj-y += events/
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obj-y += xenbus/
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CFLAGS_features.o := -fno-stack-protector
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dom0-$(CONFIG_ARM64) += arm-device.o
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dom0-$(CONFIG_PCI) += pci.o
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dom0-$(CONFIG_USB_SUPPORT) += dbgp.o
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dom0-$(CONFIG_XEN_ACPI) += acpi.o $(xen-pad-y)
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xen-pad-$(CONFIG_X86) += xen-acpi-pad.o
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dom0-$(CONFIG_X86) += pcpu.o
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obj-$(CONFIG_XEN_DOM0) += $(dom0-y)
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obj-$(CONFIG_BLOCK) += biomerge.o
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obj-$(CONFIG_XEN_BALLOON) += xen-balloon.o
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obj-$(CONFIG_XEN_DEV_EVTCHN) += xen-evtchn.o
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obj-$(CONFIG_XEN_GNTDEV) += xen-gntdev.o
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obj-$(CONFIG_XEN_GRANT_DEV_ALLOC) += xen-gntalloc.o
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obj-$(CONFIG_XENFS) += xenfs/
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obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o
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obj-$(CONFIG_XEN_PVHVM_GUEST) += platform-pci.o
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obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o
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obj-$(CONFIG_XEN_MCE_LOG) += mcelog.o
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obj-$(CONFIG_XEN_PCI_STUB) += xen-pciback/
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obj-$(CONFIG_XEN_PRIVCMD) += xen-privcmd.o
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obj-$(CONFIG_XEN_ACPI_PROCESSOR) += xen-acpi-processor.o
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obj-$(CONFIG_XEN_EFI) += efi.o
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obj-$(CONFIG_XEN_SCSI_BACKEND) += xen-scsiback.o
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obj-$(CONFIG_XEN_AUTO_XLATE) += xlate_mmu.o
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obj-$(CONFIG_XEN_PVCALLS_BACKEND) += pvcalls-back.o
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obj-$(CONFIG_XEN_PVCALLS_FRONTEND) += pvcalls-front.o
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xen-evtchn-y := evtchn.o
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xen-gntdev-y := gntdev.o
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xen-gntdev-$(CONFIG_XEN_GNTDEV_DMABUF) += gntdev-dmabuf.o
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xen-gntalloc-y := gntalloc.o
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xen-privcmd-y := privcmd.o privcmd-buf.o
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obj-$(CONFIG_XEN_FRONT_PGDIR_SHBUF) += xen-front-pgdir-shbuf.o
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obj-$(CONFIG_XEN_UNPOPULATED_ALLOC) += unpopulated-alloc.o
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obj-$(CONFIG_XEN_GRANT_DMA_OPS) += grant-dma-ops.o
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obj-$(CONFIG_XEN_GRANT_DMA_IOMMU) += grant-dma-iommu.o
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