Commit eddd2148 authored by Raghavendra Rao Ananta's avatar Raghavendra Rao Ananta Committed by Marc Zyngier
Browse files

KVM: Remove CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL 



kvm_arch_flush_remote_tlbs() or CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
are two mechanisms to solve the same problem, allowing
architecture-specific code to provide a non-IPI implementation of
remote TLB flushing.

Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize
all architectures on kvm_arch_flush_remote_tlbs() instead of
maintaining two mechanisms.

Signed-off-by: default avatarRaghavendra Rao Ananta <rananta@google.com>
Reviewed-by: default avatarShaoqin Huang <shahuang@redhat.com>
Reviewed-by: default avatarGavin Shan <gshan@redhat.com>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230811045127.3308641-5-rananta@google.com
parent 32121c81

virt/kvm/Kconfig

+0 −3
Original line number Diff line number Diff line
@@ -62,9 +62,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT 
config KVM_VFIO

       bool



config HAVE_KVM_ARCH_TLB_FLUSH_ALL

       bool



config HAVE_KVM_INVALID_WAKEUPS

       bool

virt/kvm/kvm_main.c

+0 −2
Original line number Diff line number Diff line
@@ -345,7 +345,6 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req) 
}

EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request);



#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL

void kvm_flush_remote_tlbs(struct kvm *kvm)

{

	++kvm->stat.generic.remote_tlb_flush_requests;
@@ -366,7 +365,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) 
		++kvm->stat.generic.remote_tlb_flush;

}

EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);

#endif



static void kvm_flush_shadow_all(struct kvm *kvm)

{