From patchwork Sun Jun 2 19:11:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Uros Bizjak X-Patchwork-Id: 10972031 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F2FFD1398 for ; Sun, 2 Jun 2019 19:12:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DC4FA2893D for ; Sun, 2 Jun 2019 19:12:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C99C528995; Sun, 2 Jun 2019 19:12:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 73B612893D for ; Sun, 2 Jun 2019 19:12:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726656AbfFBTMH (ORCPT ); Sun, 2 Jun 2019 15:12:07 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:35582 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbfFBTMG (ORCPT ); Sun, 2 Jun 2019 15:12:06 -0400 Received: by mail-wr1-f65.google.com with SMTP id m3so9872928wrv.2 for ; Sun, 02 Jun 2019 12:12:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=0VnGDSAdEwstbgO0SqQCQc66bkhZImcDWdyf6sL6Js4=; b=uXZkHZiI/JVfke9Ilr/NyhAVRrYDnLCXnW0+W373chiPSeObsu7d80T8U8zfdgr1Es dZ4uaA/XjEu0DtDJlbh5TjK/AcW7BgK1w/cYa1/FqIB6Q9F9MWUR/AofI+KejxBWMDNG WfzoVjGofkDRFTE1Cf3rPHX5opvPOt3Pnwa8cuydjlGcrDUk84nPl1ecX6ow3NK3svgV xVtgqEQGx5TDZrHw0k7CY49oSweBiOyX0cElBDH6fkhedwCblRtsp0avVPAuZ9riTon9 PHxM7SNh5LfTHUTJtBcaRcUXUo1YVdAHI2RgzJrQ//18+D0Pg+7PBhqnSOy0ZCwfbSsj abaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=0VnGDSAdEwstbgO0SqQCQc66bkhZImcDWdyf6sL6Js4=; b=Yd4weRwPClyyV84ZHrGMJ98Wj3ytua+jFSfVP/ffaf/CYk1sLR+u3ZqLJWNTCo5hEt QMgKJo9qT+FU4JBi96F0/6kHI0move79ukRnw4GavDOxBbLRxDUnoZk/DWVJTtuG0Ou6 syJ7aG0vwYz3wIiLEsQHpX54YkkYbi5y0TUdX13SRFyrBR4pHWB5KNFUnLzAPV9pWIYG z/LjJyaba87ezzucaPFiutkhWFjYNkPt5jHY1Mu2Dj1q/OoQl7HcqYMwjUXMQgKjE5L+ 52VRfk2FePYAasUu3h+GkJnPiEW5weRkXWXVb9jo2XlrobvJcoCYouk4Xj27rB1EnEIu S2ig== X-Gm-Message-State: APjAAAWXphYF2hvXlJ7ddo9AuMLQqoK3xpanvfbSdYwlrh3rLiCKDwBm t93l+he9xzUfj+hqox1/4H+5OGoFgZA= X-Google-Smtp-Source: APXvYqyjZkjmFHHL6xpPGEoJC2WUGXxUUJMztaNNYjuG5I2YMQRj0CwSP6EpbCYaa9Fn84iiWD0TAA== X-Received: by 2002:a5d:494d:: with SMTP id r13mr14041143wrs.152.1559502724676; Sun, 02 Jun 2019 12:12:04 -0700 (PDT) Received: from localhost.localdomain.com (93-103-18-160.static.t-2.net. [93.103.18.160]) by smtp.gmail.com with ESMTPSA id s9sm4367155wmc.11.2019.06.02.12.12.03 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 02 Jun 2019 12:12:04 -0700 (PDT) From: Uros Bizjak To: kvm@vger.kernel.org, pbonzini@redhat.com Cc: Uros Bizjak Subject: [PATCH] KVM: VMX: remove unneeded 'asm volatile ("")' from vmcs_write64 Date: Sun, 2 Jun 2019 21:11:56 +0200 Message-Id: <20190602191156.1101-1-ubizjak@gmail.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP __vmcs_writel uses volatile asm, so there is no need to insert another one between the first and the second call to __vmcs_writel in order to prevent unwanted code moves for 32bit targets. Signed-off-by: Uros Bizjak --- arch/x86/kvm/vmx/ops.h | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kvm/vmx/ops.h b/arch/x86/kvm/vmx/ops.h index b8e50f76fefc..2200fb698dd0 100644 --- a/arch/x86/kvm/vmx/ops.h +++ b/arch/x86/kvm/vmx/ops.h @@ -146,7 +146,6 @@ static __always_inline void vmcs_write64(unsigned long field, u64 value) __vmcs_writel(field, value); #ifndef CONFIG_X86_64 - asm volatile (""); __vmcs_writel(field+1, value >> 32); #endif }