From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=no 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 9619AC43331 for ; Mon, 11 Nov 2019 17:23:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 686582184C for ; Mon, 11 Nov 2019 17:23:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="Cu6DizQr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727249AbfKKRXb (ORCPT ); Mon, 11 Nov 2019 12:23:31 -0500 Received: from aserp2120.oracle.com ([141.146.126.78]:60570 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726962AbfKKRXa (ORCPT ); Mon, 11 Nov 2019 12:23:30 -0500 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id xABHMP3G063050; Mon, 11 Nov 2019 17:22:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2019-08-05; bh=7DYyc0HKUvhmhki/GKWIXwRXBdqmCRZi8t0JYXW172o=; b=Cu6DizQr7mrB2x9AYC2mbyI/B67FuRS3Pguz45JWuKT6w2yVbm1v30GR0ZWnBr1xbaOV ecBLrRhlf5oCc3ZWQyOhzb2G4rDO5Pf75kzFX7cogsEkT5aznvqhf9cpeAe1ajT2h+xr /duWA2Bdci0SYV6AywAuA/2+CuXhzzKi+A0vuaZOvoqMEp9A4ZqRL0q2qkQceI66hzpA y1sISo7Oy9AxK2Jsyac7zinrwL7O1iJ5r3+dWlFv84qMBmqfWTcq00AS1MOcxe0eLeJp 5StJ0n6V7zxqA2nNueW2OEKaQ6Ugoe0tW9KtfOWxKhqjqABIaCicIGcgP0WV343iwMmA qA== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by aserp2120.oracle.com with ESMTP id 2w5ndq069x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Nov 2019 17:22:25 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id xABHEa9Z136831; Mon, 11 Nov 2019 17:20:24 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 2w67kmc980-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Nov 2019 17:20:24 +0000 Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id xABHKNmS032343; Mon, 11 Nov 2019 17:20:23 GMT Received: from paddy.uk.oracle.com (/10.175.169.52) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 11 Nov 2019 09:20:22 -0800 From: Joao Martins To: kvm@vger.kernel.org Cc: Joao Martins , linux-kernel@vger.kernel.org, Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Liran Alon , Jag Raman Subject: [PATCH v2 0/3] KVM: VMX: Posted Interrupts fixes Date: Mon, 11 Nov 2019 17:20:09 +0000 Message-Id: <20191111172012.28356-1-joao.m.martins@oracle.com> X-Mailer: git-send-email 2.11.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9438 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=602 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1910280000 definitions=main-1911110155 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9438 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=669 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1910280000 definitions=main-1911110155 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hey, This mini-series addresses two bugs plus a small cleanup: 1) Considering PID.PIR as opposed to just PID.ON for pending interrupt checks in the direct yield code path; 2) Not changing NDST in vmx_vcpu_pi_load(), which addresses a regression. Prior to this, we would observe Win2K12 guests hanging momentarily. 3) Small cleanup to streamline PIR checks with a common helper. The cleanup is done last to simplify backports. Joao v2: * Fixed missing Tb/Rb tags; * Fixed broken Sob chains (on first two patches) * Only test PID.PIR if PID.SN=1 (third patch) Joao Martins (3): KVM: VMX: Consider PID.PIR to determine if vCPU has pending interrupts KVM: VMX: Do not change PID.NDST when loading a blocked vCPU KVM: VMX: Introduce pi_is_pir_empty() helper arch/x86/kvm/vmx/vmx.c | 21 +++++++++++++++++++-- arch/x86/kvm/vmx/vmx.h | 11 +++++++++++ 2 files changed, 30 insertions(+), 2 deletions(-) -- 2.11.0