文件操作 - Kconfig
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文件: /usr/src/kernels/4.18.0-553.144.1.el8_10.x86_64/drivers/vfio/pci/Kconfig
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config VFIO_PCI tristate "VFIO support for PCI devices" depends on VFIO && PCI && EVENTFD select VFIO_VIRQFD select IRQ_BYPASS_MANAGER help Support for the PCI VFIO bus driver. This is required to make use of PCI drivers using the VFIO framework. If you don't know what to do here, say N. config VFIO_PCI_VGA bool "VFIO PCI support for VGA devices" depends on VFIO_PCI && X86 && VGA_ARB help Support for VGA extension to VFIO PCI. This exposes an additional region on VGA devices for accessing legacy VGA addresses used by BIOS and generic video drivers. If you don't know what to do here, say N. config VFIO_PCI_MMAP depends on VFIO_PCI def_bool y if !S390 config VFIO_PCI_INTX depends on VFIO_PCI def_bool y if !S390 config VFIO_PCI_IGD bool "VFIO PCI extensions for Intel graphics (GVT-d)" depends on VFIO_PCI && X86 default y help Support for Intel IGD specific extensions to enable direct assignment to virtual machines. This includes exposing an IGD specific firmware table and read-only copies of the host bridge and LPC bridge config space. To enable Intel IGD assignment through vfio-pci, say Y. config VFIO_PCI_ZDEV_KVM bool "VFIO PCI extensions for s390x KVM passthrough" depends on S390 && KVM default y help Support s390x-specific extensions to enable support for enhancements to KVM passthrough capabilities, such as interpretive execution of zPCI instructions. To enable s390x KVM vfio-pci extensions, say Y. config VFIO_PCI_NVLINK2 def_bool y depends on VFIO_PCI && PPC_POWERNV help VFIO PCI support for P9 Witherspoon machine with NVIDIA V100 GPUs
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