From patchwork Thu Jul 8 00:54:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Isaku Yamahata X-Patchwork-Id: 12364501 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CBC67C07E95 for ; Thu, 8 Jul 2021 01:22:21 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 715A96100B for ; Thu, 8 Jul 2021 01:22:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 715A96100B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38124 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m1Ik8-0000ib-LY for qemu-devel@archiver.kernel.org; Wed, 07 Jul 2021 21:22:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38364) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m1ILO-00033s-TI for qemu-devel@nongnu.org; Wed, 07 Jul 2021 20:56:46 -0400 Received: from mga06.intel.com ([134.134.136.31]:36379) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m1ILN-0007L4-8l for qemu-devel@nongnu.org; Wed, 07 Jul 2021 20:56:46 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10038"; a="270534909" X-IronPort-AV: E=Sophos;i="5.84,222,1620716400"; d="scan'208";a="270534909" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2021 17:55:57 -0700 X-IronPort-AV: E=Sophos;i="5.84,222,1620716400"; d="scan'208";a="423770069" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2021 17:55:57 -0700 From: isaku.yamahata@gmail.com To: qemu-devel@nongnu.org, pbonzini@redhat.com, alistair@alistair23.me, ehabkost@redhat.com, marcel.apfelbaum@gmail.com, mst@redhat.com, cohuck@redhat.com, mtosatti@redhat.com, xiaoyao.li@intel.com, seanjc@google.com, erdemaktas@google.com Subject: [RFC PATCH v2 25/44] q35: Move PCIe BAR check above PAM check in mch_write_config() Date: Wed, 7 Jul 2021 17:54:55 -0700 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=134.134.136.31; envelope-from=isaku.yamahata@intel.com; helo=mga06.intel.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NML_ADSP_CUSTOM_MED=0.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: isaku.yamahata@intel.com, Sean Christopherson , isaku.yamahata@gmail.com, kvm@vger.kernel.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Sean Christopherson Process PCIe BAR before PAM so that a future patch can skip all the SMM related crud with a single check-and-return. Signed-off-by: Sean Christopherson Signed-off-by: Isaku Yamahata --- hw/pci-host/q35.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c index 2eb729dff5..9a2be237d7 100644 --- a/hw/pci-host/q35.c +++ b/hw/pci-host/q35.c @@ -468,16 +468,16 @@ static void mch_write_config(PCIDevice *d, pci_default_write_config(d, address, val, len); - if (ranges_overlap(address, len, MCH_HOST_BRIDGE_PAM0, - MCH_HOST_BRIDGE_PAM_SIZE)) { - mch_update_pam(mch); - } - if (ranges_overlap(address, len, MCH_HOST_BRIDGE_PCIEXBAR, MCH_HOST_BRIDGE_PCIEXBAR_SIZE)) { mch_update_pciexbar(mch); } + if (ranges_overlap(address, len, MCH_HOST_BRIDGE_PAM0, + MCH_HOST_BRIDGE_PAM_SIZE)) { + mch_update_pam(mch); + } + if (ranges_overlap(address, len, MCH_HOST_BRIDGE_SMRAM, MCH_HOST_BRIDGE_SMRAM_SIZE)) { mch_update_smram(mch);