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Commit a6d51016 authored by Mario Smarduch's avatar Mario Smarduch Committed by Christoffer Dall
Browse files

KVM: Add architecture-defined TLB flush support 



Allow architectures to override the generic kvm_flush_remote_tlbs()
function via HAVE_KVM_ARCH_TLB_FLUSH_ALL. ARMv7 will need this to
provide its own TLB flush interface.

Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarMario Smarduch <m.smarduch@samsung.com>
parent 924de80d

virt/kvm/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -37,3 +37,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT 


config KVM_VFIO

       bool



config HAVE_KVM_ARCH_TLB_FLUSH_ALL

       bool

virt/kvm/kvm_main.c

+2 −0
Original line number Diff line number Diff line
@@ -176,6 +176,7 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req) 
	return called;

}



#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL

void kvm_flush_remote_tlbs(struct kvm *kvm)

{

	long dirty_count = kvm->tlbs_dirty;
@@ -186,6 +187,7 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) 
	cmpxchg(&kvm->tlbs_dirty, dirty_count, 0);

}

EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);

#endif



void kvm_reload_remote_mmus(struct kvm *kvm)

{