From: Xiao Guangrong <[email protected]> The audit is very high overhead, so we need lower the frequency to assure the guest is running.
Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Avi Kivity <[email protected]> diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c index 3bde186..bd2b1be 100644 --- a/arch/x86/kvm/mmu_audit.c +++ b/arch/x86/kvm/mmu_audit.c @@ -17,6 +17,8 @@ * */ +#include <linux/ratelimit.h> + static const char *audit_msg; typedef void (*inspect_spte_fn) (struct kvm_vcpu *vcpu, u64 *sptep, int level); @@ -228,6 +230,11 @@ static void audit_vcpu_spte(struct kvm_vcpu *vcpu) static void kvm_mmu_audit(void *ignore, struct kvm_vcpu *vcpu, int audit_point) { + static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10); + + if (!__ratelimit(&ratelimit_state)) + return; + audit_msg = audit_point_name[audit_point]; audit_all_active_sps(vcpu->kvm); audit_vcpu_spte(vcpu); -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
