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20c384f1ea
Currently, CONFIG_VHOST depends on CONFIG_VIRTUALIZATION. But vhost is not necessarily for VM since it's a generic userspace and kernel communication protocol. Such dependency may prevent archs without virtualization support from using vhost. To solve this, a dedicated vhost menu is created under drivers so CONIFG_VHOST can be decoupled out of CONFIG_VIRTUALIZATION. While at it, also squash Kconfig.vringh into vhost Kconfig file. This avoids the trick of conditional inclusion from VOP or CAIF. Then it will be easier to introduce new vringh users and common dependency for both vringh and vhost. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200326140125.19794-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# KVM configuration
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#
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source "virt/kvm/Kconfig"
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menuconfig VIRTUALIZATION
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def_bool y
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prompt "KVM"
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---help---
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Say Y here to get to see options for using your Linux host to run other
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operating systems inside virtual machines (guests).
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and disabled.
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if VIRTUALIZATION
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config KVM
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def_tristate y
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prompt "Kernel-based Virtual Machine (KVM) support"
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depends on HAVE_KVM
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select PREEMPT_NOTIFIERS
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select HAVE_KVM_CPU_RELAX_INTERCEPT
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select HAVE_KVM_VCPU_ASYNC_IOCTL
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select HAVE_KVM_EVENTFD
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select KVM_ASYNC_PF
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select KVM_ASYNC_PF_SYNC
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select HAVE_KVM_IRQCHIP
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select HAVE_KVM_IRQFD
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select HAVE_KVM_IRQ_ROUTING
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select HAVE_KVM_INVALID_WAKEUPS
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select HAVE_KVM_NO_POLL
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select SRCU
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select KVM_VFIO
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---help---
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Support hosting paravirtualized guest machines using the SIE
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virtualization capability on the mainframe. This should work
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on any 64bit machine.
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This module provides access to the hardware capabilities through
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a character device node named /dev/kvm.
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To compile this as a module, choose M here: the module
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will be called kvm.
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If unsure, say N.
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config KVM_S390_UCONTROL
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bool "Userspace controlled virtual machines"
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depends on KVM
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---help---
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Allow CAP_SYS_ADMIN users to create KVM virtual machines that are
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controlled by userspace.
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If unsure, say N.
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endif # VIRTUALIZATION
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