From patchwork Tue Jan 10 12:20:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Woodhouse X-Patchwork-Id: 1724114 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=desiato.20200630 header.b=XkPtopRP; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Nrttq1XPZz23g8 for ; Wed, 11 Jan 2023 01:46:57 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pFDf4-00014u-Db; Tue, 10 Jan 2023 07:23:27 -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 1pFDcx-0007A2-AE for qemu-devel@nongnu.org; Tue, 10 Jan 2023 07:21:15 -0500 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pFDcs-0000UW-CU for qemu-devel@nongnu.org; Tue, 10 Jan 2023 07:21:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=wbLtn2pN/eRODBpkedTQTds1akltSnfDxrOetMbOGSM=; b=XkPtopRPZ+yr4KlxOZOMGujUuH yZeZf534Uf6ZYXVHCer4XDmjhX4w2yEki1p+G1eVm7Zn6quwqfkoXG34A/ilDklnAdarmhNEnOUqn 2399PiFh0U4YRWf5uUmt8YYGl4RvNNK7npt50HIQgy5+6y+wzQAf46SoV5WYLKwiIdkkUkrGv0wq+ Zrelo+M53XABArMLk5/maAdn5APQzleOZoVo2LE0nx2JrTKHVt5n5URPHGAf6EqMB9Z/zXnb6X+t2 a7o/k13EVRDcErqygEdhlVDzJD7L7ad8rnOAAa93wClUueO5ZZ8uM3d8ieJMcMgxf6EJCY60i3R7K k+5bBYrw==; Received: from i7.infradead.org ([2001:8b0:10b:1:21e:67ff:fecb:7a92]) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1pFDcM-0037tW-1Q; Tue, 10 Jan 2023 12:20:51 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFDcS-006Yed-Tg; Tue, 10 Jan 2023 12:20:44 +0000 From: David Woodhouse To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Paul Durrant , Joao Martins , Ankur Arora , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Thomas Huth , =?utf-8?q?Alex_Benn=C3=A9e?= , Juan Quintela , "Dr . David Alan Gilbert" , Claudio Fontana , Julien Grall Subject: [PATCH v6 23/51] i386/xen: implement HYPERVISOR_event_channel_op Date: Tue, 10 Jan 2023 12:20:14 +0000 Message-Id: <20230110122042.1562155-24-dwmw2@infradead.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230110122042.1562155-1-dwmw2@infradead.org> References: <20230110122042.1562155-1-dwmw2@infradead.org> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by desiato.infradead.org. See http://www.infradead.org/rpr.html Received-SPF: none client-ip=2001:8b0:10b:1:d65d:64ff:fe57:4e05; envelope-from=BATV+6ce08bad6b360d6d5e23+7079+infradead.org+dwmw2@desiato.srs.infradead.org; helo=desiato.infradead.org X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Joao Martins Additionally set XEN_INTERFACE_VERSION to most recent in order to exercise the "new" event_channel_op. Signed-off-by: Joao Martins [dwmw2: Ditch event_channel_op_compat which was never available to HVM guests] Signed-off-by: David Woodhouse --- target/i386/kvm/xen-emu.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 7803e4a7a7..ff093328d7 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -27,6 +27,7 @@ #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" #include "xen-compat.h" @@ -585,6 +586,24 @@ static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit *exit, X86CPU *cpu, return true; } +static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, + int cmd, uint64_t arg) +{ + int err = -ENOSYS; + + switch (cmd) { + case EVTCHNOP_init_control: + err = -ENOSYS; + break; + + default: + return false; + } + + exit->u.hcall.result = err; + return true; +} + static int kvm_xen_soft_reset(void) { CPUState *cpu; @@ -684,6 +703,9 @@ 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],