From: Avi Kivity Subject: [PATCH QEMU-KVM 2/2] test: Add vmcall latency test Date: Sun, 13 Sep 2009 19:09:56 +0300 Message-ID: <1252858196-4870-3-git-send-email-avi@redhat.com> References: <1252858196-4870-1-git-send-email-avi@redhat.com> Cc: kvm@vger.kernel.org To: Marcelo Tosatti Return-path: Received: from mx1.redhat.com ([209.132.183.28]:41312 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754802AbZIMQJz (ORCPT ); Sun, 13 Sep 2009 12:09:55 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id n8DG9wKD016276 for ; Sun, 13 Sep 2009 12:09:59 -0400 In-Reply-To: <1252858196-4870-1-git-send-email-avi@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Avi Kivity --- kvm/user/test/x86/vmexit.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/kvm/user/test/x86/vmexit.c b/kvm/user/test/x86/vmexit.c index 364837f..bd1895f 100644 --- a/kvm/user/test/x86/vmexit.c +++ b/kvm/user/test/x86/vmexit.c @@ -30,11 +30,19 @@ static void cpuid(void) : : : "eax", "ecx", "edx"); } +static void vmcall(void) +{ + unsigned long a = 0, b, c, d; + + asm volatile ("vmcall" : "+a"(a), "=b"(b), "=c"(c), "=d"(d)); +} + static struct test { void (*func)(void); const char *name; } tests[] = { { cpuid, "cpuid", }, + { vmcall, "vmcall", }, }; static void do_test(struct test *test) -- 1.6.2.5