From patchwork Wed Feb 20 20:16:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joao Martins X-Patchwork-Id: 10822649 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 7AFAD13B5 for ; Wed, 20 Feb 2019 20:18:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 67C5F2E97D for ; Wed, 20 Feb 2019 20:18:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5B9D92EABE; Wed, 20 Feb 2019 20:18:53 +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,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY 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 09D302E97D for ; Wed, 20 Feb 2019 20:18:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728067AbfBTUSv (ORCPT ); Wed, 20 Feb 2019 15:18:51 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:53246 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728049AbfBTUSu (ORCPT ); Wed, 20 Feb 2019 15:18:50 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x1KK8ZDJ081724; Wed, 20 Feb 2019 20:18:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=SgHD9NVfwS2nZ8X3B3FNB8zCOkq9pVflU3V9h8Ufw4Y=; b=H4Q1jVpbdxB8niJnlfhNM+b5amup3s7H37wbFI/ZDHxpSsaYmKa3ISPDKi4+d/uywI30 zgHvqvHNlUtjcFM/7J1ozxcJobITDFgmeRJuBkmiH98AuGKExNSthwPQOorHk2OfSGmU sw1NNy0xYv6FJOQr09yCgp3QRQw0MFoMzrG58SMh40Fz0a9rh1x9NKvlBwfspxT/LVob 9cPrfPGZrQWA9F9VXDKB4BCtsJTM316KKRAzSTPINDv97b4poPUR0A/zG3NjtCP1NTxS drXjhXRxZRrDqmHAJnk5HpH+Kd//qhGz18JjNfX5i4JLlT4f5Z8KI5XW2lTXZ4y/9psH ug== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2qp9xu3xne-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Feb 2019 20:18:36 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x1KKIUR3019979 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Feb 2019 20:18:30 GMT Received: from abhmp0022.oracle.com (abhmp0022.oracle.com [141.146.116.28]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x1KKIUhI018949; Wed, 20 Feb 2019 20:18:30 GMT Received: from paddy.lan (/94.61.137.133) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 20 Feb 2019 12:18:29 -0800 From: Joao Martins To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ankur Arora , Boris Ostrovsky , Joao Martins , Paolo Bonzini , =?utf-8?b?UmFkaW0gS3LEjW3DocWZ?= , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org Subject: [PATCH RFC 30/39] KVM: x86/xen: add additional evtchn ops Date: Wed, 20 Feb 2019 20:16:00 +0000 Message-Id: <20190220201609.28290-31-joao.m.martins@oracle.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190220201609.28290-1-joao.m.martins@oracle.com> References: <20190220201609.28290-1-joao.m.martins@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9173 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902200138 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ankur Arora Add support for changing event channel affinity (EVTCHNOP_bind_vcpu) and closing an event (EVTCHNOP_close). We just piggy back on the functionality already implemented for guest event channels. Signed-off-by: Ankur Arora --- arch/x86/kvm/xen.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c index 1988ed3866bf..666dd6d1f5a3 100644 --- a/arch/x86/kvm/xen.c +++ b/arch/x86/kvm/xen.c @@ -2188,6 +2188,38 @@ static int shim_hcall_evtchn(int op, void *p) ret = shim_hcall_evtchn_send(xen_shim, send); break; } + case EVTCHNOP_bind_virq: { + struct evtchn_bind_virq *un; + + un = (struct evtchn_bind_virq *) p; + + evt.fd = -1; + evt.port = 0; + evt.type = XEN_EVTCHN_TYPE_VIRQ; + ret = kvm_xen_eventfd_assign(NULL, &xen_shim->port_to_evt, + &xen_shim->xen_lock, &evt); + un->port = evt.port; + break; + } + case EVTCHNOP_bind_vcpu: { + struct evtchn_bind_vcpu *bind_vcpu; + + bind_vcpu = (struct evtchn_bind_vcpu *) p; + + evt.port = bind_vcpu->port; + evt.vcpu = bind_vcpu->vcpu; + ret = kvm_xen_eventfd_update(NULL, &xen_shim->port_to_evt, + &xen_shim->xen_lock, &evt); + break; + } + case EVTCHNOP_close: { + struct evtchn_close *cls; + + cls = (struct evtchn_close *) p; + ret = kvm_xen_eventfd_deassign(NULL, &xen_shim->port_to_evt, + &xen_shim->xen_lock, cls->port); + break; + } default: ret = -EINVAL; break;