Add a r/w module parameter named 'mmu_audit', it can control audit enable/disable: enable: echo 1 > /sys/module/kvm/parameters/mmu_audit disable: echo 0 > /sys/module/kvm/parameters/mmu_audit This patch not change the logic Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
		
			
				
	
	
		
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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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	bool "Virtualization"
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	depends on HAVE_KVM || X86
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	default y
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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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	tristate "Kernel-based Virtual Machine (KVM) support"
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	depends on HAVE_KVM
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	# for device assignment:
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	depends on PCI
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	select PREEMPT_NOTIFIERS
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	select MMU_NOTIFIER
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	select ANON_INODES
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	select HAVE_KVM_IRQCHIP
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	select HAVE_KVM_EVENTFD
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	select KVM_APIC_ARCHITECTURE
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	select USER_RETURN_NOTIFIER
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	select KVM_MMIO
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	---help---
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	  Support hosting fully virtualized guest machines using hardware
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	  virtualization extensions.  You will need a fairly recent
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	  processor equipped with virtualization extensions. You will also
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	  need to select one or more of the processor modules below.
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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_INTEL
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	tristate "KVM for Intel processors support"
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	depends on KVM
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	---help---
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	  Provides support for KVM on Intel processors equipped with the VT
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	  extensions.
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	  To compile this as a module, choose M here: the module
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	  will be called kvm-intel.
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config KVM_AMD
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	tristate "KVM for AMD processors support"
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	depends on KVM
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	---help---
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	  Provides support for KVM on AMD processors equipped with the AMD-V
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	  (SVM) extensions.
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	  To compile this as a module, choose M here: the module
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	  will be called kvm-amd.
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config KVM_MMU_AUDIT
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	bool "Audit KVM MMU"
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	depends on KVM && TRACEPOINTS
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	---help---
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	 This option adds a R/W kVM module parameter 'mmu_audit', which allows
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	 audit  KVM MMU at runtime.
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# OK, it's a little counter-intuitive to do this, but it puts it neatly under
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# the virtualization menu.
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source drivers/vhost/Kconfig
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source drivers/lguest/Kconfig
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source drivers/virtio/Kconfig
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endif # VIRTUALIZATION
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