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# SPDX-License-Identifier: GPL-2.0
#
# CONFIG_KVM configuration
#
source "virt/kvm/Kconfig"

menuconfig CONFIG_VIRTUALIZATION
	bool "Virtualization"
	---help---
	  Say Y here to get to see options for using your Linux host to run
	  other operating systems inside virtual machines (guests).
	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and disabled.

if CONFIG_VIRTUALIZATION

config CONFIG_KVM
	tristate "Kernel-based Virtual Machine (KVM) support"
	depends on CONFIG_HAVE_KVM
	depends on CONFIG_MIPS_FP_SUPPORT
	select CONFIG_EXPORT_UASM
	select CONFIG_PREEMPT_NOTIFIERS
	select CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT
	select CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL
	select CONFIG_KVM_MMIO
	select CONFIG_MMU_NOTIFIER
	select CONFIG_SRCU
	---help---
	  Support for hosting Guest kernels.

choice
	prompt "Virtualization mode"
	depends on CONFIG_KVM
	default CONFIG_KVM_MIPS_TE

config CONFIG_KVM_MIPS_TE
	bool "Trap & Emulate"
	---help---
	  Use trap and emulate to virtualize 32-bit guests in user mode. This
	  does not require any special hardware Virtualization support beyond
	  standard MIPS32/64 r2 or later, but it does require the guest kernel
	  to be configured with CONFIG_KVM_GUEST=y so that it resides in the
	  user address segment.

config CONFIG_KVM_MIPS_VZ
	bool "MIPS Virtualization (VZ) ASE"
	---help---
	  Use the CONFIG_MIPS Virtualization (VZ) ASE to virtualize guests. This
	  supports running unmodified guest kernels (with CONFIG_KVM_GUEST=n),
	  but requires hardware support.

endchoice

config CONFIG_KVM_MIPS_DYN_TRANS
	bool "KVM/MIPS: Dynamic binary translation to reduce traps"
	depends on CONFIG_KVM_MIPS_TE
	default y
	---help---
	  When running in Trap & Emulate mode patch privileged
	  instructions to reduce the number of traps.

	  If unsure, say Y.

config CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS
	bool "Maintain counters for COP0 accesses"
	depends on CONFIG_KVM
	---help---
	  Maintain statistics for Guest COP0 accesses.
	  CONFIG_A histogram of COP0 accesses is printed when the VM is
	  shutdown.

	  If unsure, say N.

source "drivers/vhost/Kconfig"

endif # CONFIG_VIRTUALIZATION