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56f7a44050
Add support for the MIPS Virtualization (VZ) ASE to the MIPS KVM build system. For now KVM can only be configured for T&E or VZ and not both, but the design of the user facing APIs support the possibility of having both available, so this could change in future. Note that support for various optional guest features (some of which can't be turned off) are implemented in immediately following commits, so although it should now be possible to build VZ support, it may not work yet on your hardware. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org
76 lines
1.9 KiB
Plaintext
76 lines
1.9 KiB
Plaintext
#
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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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bool "Virtualization"
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---help---
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Say Y here to get to see options for using your Linux host to run
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other 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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tristate "Kernel-based Virtual Machine (KVM) support"
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depends on HAVE_KVM
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select EXPORT_UASM
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select PREEMPT_NOTIFIERS
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select ANON_INODES
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select KVM_GENERIC_DIRTYLOG_READ_PROTECT
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select KVM_MMIO
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select MMU_NOTIFIER
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select SRCU
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---help---
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Support for hosting Guest kernels.
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choice
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prompt "Virtualization mode"
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depends on KVM
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default KVM_MIPS_TE
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config KVM_MIPS_TE
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bool "Trap & Emulate"
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---help---
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Use trap and emulate to virtualize 32-bit guests in user mode. This
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does not require any special hardware Virtualization support beyond
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standard MIPS32/64 r2 or later, but it does require the guest kernel
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to be configured with CONFIG_KVM_GUEST=y so that it resides in the
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user address segment.
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config KVM_MIPS_VZ
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bool "MIPS Virtualization (VZ) ASE"
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---help---
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Use the MIPS Virtualization (VZ) ASE to virtualize guests. This
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supports running unmodified guest kernels (with CONFIG_KVM_GUEST=n),
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but requires hardware support.
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endchoice
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config KVM_MIPS_DYN_TRANS
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bool "KVM/MIPS: Dynamic binary translation to reduce traps"
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depends on KVM_MIPS_TE
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default y
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---help---
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When running in Trap & Emulate mode patch privileged
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instructions to reduce the number of traps.
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If unsure, say Y.
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config KVM_MIPS_DEBUG_COP0_COUNTERS
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bool "Maintain counters for COP0 accesses"
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depends on KVM
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---help---
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Maintain statistics for Guest COP0 accesses.
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A histogram of COP0 accesses is printed when the VM is
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shutdown.
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If unsure, say N.
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source drivers/vhost/Kconfig
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endif # VIRTUALIZATION
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