From patchwork Wed Sep 16 09:25:48 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avi Kivity X-Patchwork-Id: 47872 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n8G9QTjW009599 for ; Wed, 16 Sep 2009 09:26:29 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758471AbZIPJ0X (ORCPT ); Wed, 16 Sep 2009 05:26:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758217AbZIPJ0S (ORCPT ); Wed, 16 Sep 2009 05:26:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:9704 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758262AbZIPJ0K (ORCPT ); Wed, 16 Sep 2009 05:26:10 -0400 Received: from int-mx04.intmail.prod.int.phx2.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.17]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id n8G9QEGa026457 for ; Wed, 16 Sep 2009 05:26:14 -0400 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx04.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id n8G9QDZr005531; Wed, 16 Sep 2009 05:26:13 -0400 Received: from localhost.localdomain (cleopatra.tlv.redhat.com [10.35.255.11]) by cleopatra.tlv.redhat.com (Postfix) with ESMTP id 388E525005A; Wed, 16 Sep 2009 12:26:11 +0300 (IDT) From: Avi Kivity To: Marcelo Tosatti Cc: kvm@vger.kernel.org Subject: [PATCH QEMU-KVM 13/34] test: add cr8 latency tests Date: Wed, 16 Sep 2009 12:25:48 +0300 Message-Id: <1253093169-1423-14-git-send-email-avi@redhat.com> In-Reply-To: <1253093169-1423-1-git-send-email-avi@redhat.com> References: <1253093169-1423-1-git-send-email-avi@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.17 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In light of the recent cr8/ept problem. Signed-off-by: Avi Kivity --- kvm/user/test/x86/vmexit.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/kvm/user/test/x86/vmexit.c b/kvm/user/test/x86/vmexit.c index bd1895f..cce26d9 100644 --- a/kvm/user/test/x86/vmexit.c +++ b/kvm/user/test/x86/vmexit.c @@ -37,12 +37,28 @@ static void vmcall(void) asm volatile ("vmcall" : "+a"(a), "=b"(b), "=c"(c), "=d"(d)); } +static void mov_from_cr8(void) +{ + unsigned long cr8; + + asm volatile ("mov %%cr8, %0" : "=r"(cr8)); +} + +static void mov_to_cr8(void) +{ + unsigned long cr8 = 0; + + asm volatile ("mov %0, %%cr8" : : "r"(cr8)); +} + static struct test { void (*func)(void); const char *name; } tests[] = { { cpuid, "cpuid", }, { vmcall, "vmcall", }, + { mov_from_cr8, "mov_from_cr8" }, + { mov_to_cr8, "mov_to_cr8" }, }; static void do_test(struct test *test)