From nobody Thu Oct 9 04:53:36 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39CD31BE86E; Fri, 20 Jun 2025 06:23:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750400585; cv=none; b=Y8teh9Q+qCW7glDug3l57gZu9y/WidocQVzGdVS7DxyP6yrAnA+W48UMtQ9Pig6Ac6EO4D+PSQPAHVaQG6WhZCx22kczVsuV+9ymxWYMpsooQdRVg2yeSBy9CxbLagJej39h/nWSc8+onv+vqakNjqAB/3lPrEdU/lcPrjTGshs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750400585; c=relaxed/simple; bh=BKzgWLiSnVkSnztu+6QWiSSx2eUFe40sPzurewxO+1Y=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=UEV1nOGiyrOovgi381eaVAKZjCQwt+d13ESeD3H4hKYK7NigOKaXEKE7Xa6bBevB+V6XIK8zKq9lDObabmj3jMe1WTg44WyyGu7bjp1suw4ZgXciqp8uTDuZjaxCI7KGbpmjaeSPQTSTXoQekPkPO6tWeZrlCSSyDOoVDIikLfQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eQOiohJ7; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eQOiohJ7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1750400583; x=1781936583; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=BKzgWLiSnVkSnztu+6QWiSSx2eUFe40sPzurewxO+1Y=; b=eQOiohJ7WzhXSJxw02wLKvqYsY+8MdzrBMcmQAD/1L+sdnKWT8d1u5tk uvWOmQZLt6K+nrfBpK1Avad3eVIdOxKPrQTY5/+GANzMpdCzbSIxsC5Pw w82wgSJ4pqgrTyGUk4LXSv38qU4tg/SCn7arlKlxhBJV143ojLYQbV6/z GP+b8dqbqAYhP/SHIuwrCiSz23OqLrx6mLQ0WFzmQOVpmIvVGsiThi8ne LYTSryfEx1CC1FlzzZkom0VWrfrWa9mDA2DFwLU3Y/BfQGCoJOT9Pv2cq dvchKIQF0pzR/au/W1HuT0EIAnSk0KKR9GYLG67QiX6VXOOOGd+naorsn g==; X-CSE-ConnectionGUID: TDt3R79yQ6OXgvdFG3gm1w== X-CSE-MsgGUID: O5q44YwLQ5anYed3wpA68w== X-IronPort-AV: E=McAfee;i="6800,10657,11469"; a="51882204" X-IronPort-AV: E=Sophos;i="6.16,250,1744095600"; d="scan'208";a="51882204" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jun 2025 23:23:02 -0700 X-CSE-ConnectionGUID: zHvPMjEvQhWPLSgBssdQ9w== X-CSE-MsgGUID: 3B3SeY8tTju2cgyUofolLw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,250,1744095600"; d="scan'208";a="181849497" Received: from emr-bkc.sh.intel.com ([10.112.230.82]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jun 2025 23:23:01 -0700 From: Chenyi Qiang To: Sean Christopherson , Paolo Bonzini , Zide Chen Cc: Chenyi Qiang , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Xuelian Guo Subject: [PATCH] KVM: selftests: Add back the missing check of MONITOR/MWAIT availability Date: Fri, 20 Jun 2025 14:22:18 +0800 Message-ID: <20250620062219.342930-1-chenyi.qiang@intel.com> X-Mailer: git-send-email 2.43.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The revamp of monitor/mwait test missed the original check of feature availability [*]. If MONITOR/MWAIT is not supported or is disabled by IA32_MISC_ENABLE on the host, executing MONITOR or MWAIT instruction from guest doesn't cause monitor/mwait VM exits, but a #UD. [*] https://lore.kernel.org/all/20240411210237.34646-1-zide.chen@intel.com/ Reported-by: Xuelian Guo Fixes: 80fd663590cf ("selftests: kvm: revamp MONITOR/MWAIT tests") Signed-off-by: Chenyi Qiang --- tools/testing/selftests/kvm/x86/monitor_mwait_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/kvm/x86/monitor_mwait_test.c b/tools/t= esting/selftests/kvm/x86/monitor_mwait_test.c index 390ae2d87493..0eb371c62ab8 100644 --- a/tools/testing/selftests/kvm/x86/monitor_mwait_test.c +++ b/tools/testing/selftests/kvm/x86/monitor_mwait_test.c @@ -74,6 +74,7 @@ int main(int argc, char *argv[]) int testcase; char test[80]; =20 + TEST_REQUIRE(this_cpu_has(X86_FEATURE_MWAIT)); TEST_REQUIRE(kvm_has_cap(KVM_CAP_DISABLE_QUIRKS2)); =20 ksft_print_header(); --=20 2.43.5