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| author |   Mario Smarduch <m.smarduch@samsung.com> | 2015-01-15 15:58:52 -0800 |
|---|---|---|
| committer |   Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-16 14:40:14 +0100 |
| commit | a6d5101661c88d642b1fc85657fb0c58da821aa7 (patch) | |
| tree | 09c2aa154c076abf729f27818f3787692126ef94 /virt/kvm | |
| parent | ARM: KVM: extend WFI tracepoint to differentiate between wfi and wfe (diff) | |
| download | linux-dev-a6d5101661c88d642b1fc85657fb0c58da821aa7.tar.xz linux-dev-a6d5101661c88d642b1fc85657fb0c58da821aa7.zip | |
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: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mario Smarduch <m.smarduch@samsung.com>
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/Kconfig | 3 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index fc0c5e603eb4..3796a2132a06 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 167e8c14b143..d03bd2255801 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -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) { |