add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/vfio/pci/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
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 config VFIO_PCI
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 	tristate "VFIO support for PCI devices"
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 	depends on VFIO && PCI && EVENTFD
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 	  and LPC bridge config space.
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 	  To enable Intel IGD assignment through vfio-pci, say Y.
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+
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+config VFIO_PCI_NVLINK2
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+	def_bool y
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+	depends on VFIO_PCI && PPC_POWERNV && SPAPR_TCE_IOMMU
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+	help
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+	  VFIO PCI support for P9 Witherspoon machine with NVIDIA V100 GPUs
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+
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+config VFIO_PCI_ZDEV
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+	bool "VFIO PCI ZPCI device CLP support"
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+	depends on VFIO_PCI && S390
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+	default y
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+	help
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+	  Enabling this option exposes VFIO capabilities containing hardware
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+	  configuration for zPCI devices. This enables userspace (e.g. QEMU)
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+	  to supply proper configuration values instead of hard-coded defaults
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+	  for zPCI devices passed through via VFIO on s390.
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+
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+	  Say Y here.