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 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EDF67C4332F for ; Wed, 21 Dec 2022 01:37:09 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p7nZd-0003KC-0O; Tue, 20 Dec 2022 20:07:09 -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 1p7nZQ-0002y4-JX for qemu-devel@nongnu.org; Tue, 20 Dec 2022 20:06:56 -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 1p7nZM-0004Hw-3W for qemu-devel@nongnu.org; Tue, 20 Dec 2022 20:06:56 -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=6mFwsCzAVJMU5JltWzhhEkeyjuZsSUExWDzJ3u3AYrc=; b=Jw4cCa9izdCrM6jPbjZ+k+Zz76 me55UbDoKSfrUHWEIK9TYtyKxGVXwS9dabXtftjmYFk6wzlLCadD//6xtxPFBZQNW6myk/9azTySm cYjOBo8JwArRo+L6pUbqlj1TFKJWbelYYA/3Loqz5IwOdjgyttzDD9x8vm/XvZ3cbyBO6smluDYds GkIwQVjvcXIxaTm8eEO4C2596mWtcLWgpupz/QzzCyN03Aw/AFVGYkALZis9jlsRW+MuRrx4EZB2w uy7hcp04DoDAZIbJiAbbOniC/ZMpVOm8TzLdVgJ9dFUq3AXALD6NDIU8hrLvx4KaK384v59h4PwOe zkBX7owA==; 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 1p7nYx-00DDGY-1e; Wed, 21 Dec 2022 01:06:33 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1p7nYw-004CMM-N6; Wed, 21 Dec 2022 01:06:26 +0000 From: David Woodhouse To: 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 Subject: [RFC PATCH v4 20/47] i386/xen: implement HYPERVISOR_vcpu_op Date: Wed, 21 Dec 2022 01:05:56 +0000 Message-Id: <20221221010623.1000191-21-dwmw2@infradead.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20221221010623.1000191-1-dwmw2@infradead.org> References: <20221221010623.1000191-1-dwmw2@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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+7cc631609c1bd8ad3247+7059+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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Joao Martins This is simply when guest tries to register a vcpu_info and since vcpu_info placement is optional in the minimum ABI therefore we can just fail with -ENOSYS Signed-off-by: Joao Martins Signed-off-by: David Woodhouse --- 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 6b4d40397c..0e9ae481d8 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -28,6 +28,7 @@ #include "standard-headers/xen/sched.h" #include "standard-headers/xen/memory.h" #include "standard-headers/xen/hvm/hvm_op.h" +#include "standard-headers/xen/vcpu.h" #include "xen-compat.h" @@ -362,6 +363,25 @@ static bool kvm_xen_hcall_hvm_op(struct kvm_xen_exit *exit, X86CPU *cpu, } } +static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit *exit, X86CPU *cpu, + int cmd, int vcpu_id, uint64_t arg) +{ + int err; + + switch (cmd) { + case VCPUOP_register_vcpu_info: + /* no vcpu info placement for now */ + err = -ENOSYS; + break; + + default: + return false; + } + + exit->u.hcall.result = err; + return true; +} + static int kvm_xen_soft_reset(void) { int err; @@ -456,6 +476,11 @@ 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_vcpu_op: + return kvm_xen_hcall_vcpu_op(exit, cpu, + exit->u.hcall.params[0], + exit->u.hcall.params[1], + exit->u.hcall.params[2]); case __HYPERVISOR_hvm_op: return kvm_xen_hcall_hvm_op(exit, cpu, exit->u.hcall.params[0], exit->u.hcall.params[1]); -- 2.35.3