From patchwork Tue Feb 16 10:35:18 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avi Kivity X-Patchwork-Id: 79618 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o1GAfwOL020416 for ; Tue, 16 Feb 2010 10:41:58 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751600Ab0BPKlF (ORCPT ); Tue, 16 Feb 2010 05:41:05 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59653 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932806Ab0BPKfk (ORCPT ); Tue, 16 Feb 2010 05:35:40 -0500 Received: from int-mx05.intmail.prod.int.phx2.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.18]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o1GAZewr011595 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 16 Feb 2010 05:35:40 -0500 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx05.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o1GAZcQD020429; Tue, 16 Feb 2010 05:35:39 -0500 Received: from localhost.localdomain (file.tlv.redhat.com [10.35.255.8]) by cleopatra.tlv.redhat.com (Postfix) with ESMTP id E7E1B250AE3; Tue, 16 Feb 2010 12:35:36 +0200 (IST) From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 20/38] KVM: trace guest fpu loads and unloads Date: Tue, 16 Feb 2010 12:35:18 +0200 Message-Id: <1266316536-28936-21-git-send-email-avi@redhat.com> In-Reply-To: <1266316536-28936-1-git-send-email-avi@redhat.com> References: <1266316536-28936-1-git-send-email-avi@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.18 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 16 Feb 2010 10:41:58 +0000 (UTC) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 27af6e3..3b90298 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5292,6 +5292,7 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) vcpu->guest_fpu_loaded = 1; kvm_fx_save(&vcpu->arch.host_fx_image); kvm_fx_restore(&vcpu->arch.guest_fx_image); + trace_kvm_fpu(1); } void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) @@ -5304,6 +5305,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) kvm_fx_restore(&vcpu->arch.host_fx_image); ++vcpu->stat.fpu_reload; set_bit(KVM_REQ_DEACTIVATE_FPU, &vcpu->requests); + trace_kvm_fpu(0); } void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h index dbe1084..8abdc12 100644 --- a/include/trace/events/kvm.h +++ b/include/trace/events/kvm.h @@ -145,6 +145,25 @@ TRACE_EVENT(kvm_mmio, __entry->len, __entry->gpa, __entry->val) ); +#define kvm_fpu_load_symbol \ + {0, "unload"}, \ + {1, "load"} + +TRACE_EVENT(kvm_fpu, + TP_PROTO(int load), + TP_ARGS(load), + + TP_STRUCT__entry( + __field( u32, load ) + ), + + TP_fast_assign( + __entry->load = load; + ), + + TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol)) +); + #endif /* _TRACE_KVM_MAIN_H */ /* This part must be outside protection */