From mboxrd@z Thu Jan 1 00:00:00 1970 From: m.smarduch@samsung.com (Mario Smarduch) Date: Thu, 06 Nov 2014 16:40:42 -0800 Subject: [PATCH v13 1/7] KVM: Add architecture-defined TLB flush support In-Reply-To: <1415320848-13813-1-git-send-email-m.smarduch@samsung.com> References: <1415320848-13813-1-git-send-email-m.smarduch@samsung.com> Message-ID: <1415320848-13813-2-git-send-email-m.smarduch@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: Paolo Bonzini Signed-off-by: Mario Smarduch --- virt/kvm/Kconfig | 3 +++ virt/kvm/kvm_main.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index fc0c5e6..3796a21 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -37,3 +37,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT config KVM_VFIO bool + +config HAVE_KVM_ARCH_TLB_FLUSH_ALL + bool diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 33712fb..887df87 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -184,6 +184,7 @@ static bool 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; @@ -194,6 +195,7 @@ 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) { -- 1.7.9.5