From patchwork Mon Aug 8 08:58:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 12938586 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89157C25B06 for ; Mon, 8 Aug 2022 08:58:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241859AbiHHI6y (ORCPT ); Mon, 8 Aug 2022 04:58:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241937AbiHHI6r (ORCPT ); Mon, 8 Aug 2022 04:58:47 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3C2413F07 for ; Mon, 8 Aug 2022 01:58:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1659949121; x=1691485121; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=olqPZCDG0zJY+g1ql2sCjZxihnCwsiEFNj0e/7YKKis=; b=f7YvGW+Aj3tP3gFi4yL8pJVCeTB11kukAVnHtNd1mNfiwxu3+x9emFOz 8elxDyNVjOkfeVnfHso+tMbY/zve9ZlLMrINZ2qZfCmYzWiw1xh6hf1RR ArVtW6IAQLYcXEn08ZAQ35Vk+67rGns8XduMi3MbdcZ+H3r7lwPK5lsGE PhUrjsjTZrXrVBrpFIWHhig8cHZyi8HENoWgIbXxaot6OJMp/bKfYWDzN pnd+h4NU6wS6zNUk/oQs695UhrGKN6GQVe48yMElPf0IFeoRAwi/GT2Ic mrChgidQKOFusjQgtYvSY+Fy8Yd8w+jpuiFssLODoh+tKgDFgl5Wp9YnM A==; X-IronPort-AV: E=McAfee;i="6400,9594,10432"; a="376835063" X-IronPort-AV: E=Sophos;i="5.93,221,1654585200"; d="scan'208";a="376835063" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Aug 2022 01:58:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,221,1654585200"; d="scan'208";a="931970585" Received: from lxy-dell.sh.intel.com ([10.239.48.38]) by fmsmga005.fm.intel.com with ESMTP; 08 Aug 2022 01:58:40 -0700 From: Xiaoyao Li To: Paolo Bonzini , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [PATCH v2 4/8] target/i386/intel-pt: print special message for INTEL_PT_ADDR_RANGES_NUM Date: Mon, 8 Aug 2022 16:58:30 +0800 Message-Id: <20220808085834.3227541-5-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220808085834.3227541-1-xiaoyao.li@intel.com> References: <20220808085834.3227541-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Bit[2:0] of CPUID.14H_01H:EAX stands as a whole for the number of INTEL PT ADDR RANGES. For unsupported value that exceeds what KVM reports, report it as a whole in mark_unavailable_features() as well. Signed-off-by: Xiaoyao Li --- target/i386/cpu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 8b74d18c127f..dc0c1bbcbb16 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4385,7 +4385,14 @@ static void mark_unavailable_features(X86CPU *cpu, FeatureWord w, uint64_t mask, return; } - for (i = 0; i < 64; ++i) { + if ((w == FEAT_14_1_EAX) && (mask & INTEL_PT_ADDR_RANGES_NUM_MASK)) { + warn_report("%s: CPUID.14H_01H:EAX [bit 2:0]", verbose_prefix); + i = 3; + } else { + i = 0; + } + + for (; i < 64; ++i) { if ((1ULL << i) & mask) { g_autofree char *feat_word_str = feature_word_description(f, i); warn_report("%s: %s%s%s [bit %d]",