From nobody Wed Feb 5 11:55:28 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1674894130767216.1038689586387; Sat, 28 Jan 2023 00:22:10 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pLgMg-0003fj-Pb; Sat, 28 Jan 2023 03:15:11 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pLgJW-0005wu-S6 for qemu-devel@nongnu.org; Sat, 28 Jan 2023 03:11:56 -0500 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pLgJJ-0007oW-Nm for qemu-devel@nongnu.org; Sat, 28 Jan 2023 03:11:54 -0500 Received: from i7.infradead.org ([2001:8b0:10b:1:21e:67ff:fecb:7a92]) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLgIx-008RKW-3t; Sat, 28 Jan 2023 08:11:19 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1pLgIx-006mJB-0P; Sat, 28 Jan 2023 08:11:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=MHOmhDd79CJ/VF3tcCBRmWulTzbFIxXLDGiTzA2SW0o=; b=ToQARPow9kZGjgc5OXgZ6GOsYL cxxiGyyfC1rihkZc1P4YPJyuleOV+v3JhkC7jVWN0bkQ/mvYpVZDbn2y/mdXUk1XMje6w+edtUWfX 7h41gSJiWIIwngvnfK6kvfvpgLASH1Zxumli3pe8U0YEMBmObBbVbfgGN1ulAyw4JAmKuDlY6PQd2 CMCpWjYqKjy5hBv76FTICbSei4i1OD9QAXDGC9z+nvxpovMNV6j03LtLeuaE0xDWBGW2tTn/5dR7p QCS+Uf+vCyyZZ5lHybE/nD8jHucW4kiLzzS/tbC0rGycFGLmJ/yDbV7/uMJnx0pn+N9HGwfOQzrZ+ 9AgXvoTg==; From: David Woodhouse To: Peter Maydell , qemu-devel@nongnu.org Cc: Paolo Bonzini , Paul Durrant , Joao Martins , Ankur Arora , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Thomas Huth , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Juan Quintela , "Dr . David Alan Gilbert" , Claudio Fontana , Julien Grall , "Michael S. Tsirkin" , Marcel Apfelbaum , armbru@redhat.com Subject: [PATCH v9 23/58] i386/xen: implement HYPERVISOR_event_channel_op Date: Sat, 28 Jan 2023 08:10:38 +0000 Message-Id: <20230128081113.1615111-24-dwmw2@infradead.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230128081113.1615111-1-dwmw2@infradead.org> References: <20230128081113.1615111-1-dwmw2@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2001:8b0:10b:1236::1; envelope-from=BATV+5966041548699f31a8b8+7097+infradead.org+dwmw2@casper.srs.infradead.org; helo=casper.infradead.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1674894131638100001 Content-Type: text/plain; charset="utf-8" From: Joao Martins Signed-off-by: Joao Martins [dwmw2: Ditch event_channel_op_compat which was never available to HVM gues= ts] Signed-off-by: David Woodhouse Reviewed-by: Paul Durrant --- target/i386/kvm/xen-emu.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 8450b162ad..7ef3d8e520 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -28,6 +28,7 @@ #include "standard-headers/xen/memory.h" #include "standard-headers/xen/hvm/hvm_op.h" #include "standard-headers/xen/vcpu.h" +#include "standard-headers/xen/event_channel.h" =20 #include "xen-compat.h" =20 @@ -588,6 +589,27 @@ static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit = *exit, X86CPU *cpu, return true; } =20 +static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, + int cmd, uint64_t arg) +{ + int err =3D -ENOSYS; + + switch (cmd) { + case EVTCHNOP_init_control: + case EVTCHNOP_expand_array: + case EVTCHNOP_set_priority: + /* We do not support FIFO channels at this point */ + err =3D -ENOSYS; + break; + + default: + return false; + } + + exit->u.hcall.result =3D err; + return true; +} + int kvm_xen_soft_reset(void) { CPUState *cpu; @@ -694,6 +716,9 @@ static bool do_kvm_xen_handle_exit(X86CPU *cpu, struct = kvm_xen_exit *exit) case __HYPERVISOR_sched_op: return kvm_xen_hcall_sched_op(exit, cpu, exit->u.hcall.params[0], exit->u.hcall.params[1]); + case __HYPERVISOR_event_channel_op: + return kvm_xen_hcall_evtchn_op(exit, exit->u.hcall.params[0], + exit->u.hcall.params[1]); case __HYPERVISOR_vcpu_op: return kvm_xen_hcall_vcpu_op(exit, cpu, exit->u.hcall.params[0], --=20 2.39.0