From patchwork Wed Dec 21 01:05:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Woodhouse X-Patchwork-Id: 1718109 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=casper.20170209 header.b=YvDcRlay; 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 4NcG8W32YQz23dP for ; Wed, 21 Dec 2022 12:30:03 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p7nZO-0002tX-Iu; Tue, 20 Dec 2022 20:06:55 -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 1p7nZC-0002qO-7K for qemu-devel@nongnu.org; Tue, 20 Dec 2022 20:06:42 -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 1p7nZ9-0004Cp-8R for qemu-devel@nongnu.org; Tue, 20 Dec 2022 20:06:41 -0500 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=AJZSrP5ErY+F6yNJps7iT/Cjs+xlWBNxo3sWFMVbfVg=; b=YvDcRlay69RUtqiCcK6h5H+NxT SdUsHF2NLxoVlU0nLkLPQIZmCL6swxlPvoUJ7IXJ7+l2neHsgv6uHSCST9XrYY7o+YrGPhusbc96J LG1z1P8/ylE9ZeXvFUOkBp4aoIg6tl7E1Qb1ACEX6Muh52M5HBAptxwLK1HnkB+qCKRy1CDqGaCO5 Z9CLgwzUsvtOAL4G1W48553mBhA3V9QoNmTdum+8kwXYTgADcnWUXemXqSpy/UN6Ml7H8Gn2SnLVb CYZFIFBkd/7eGmCc2fQdC+RN+sQYgBKRuNUPDkrgI4ll2dMesLy/7IdH7TU1Snmd0+0IljXh3GHv8 y2wtu5lg==; 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 1p7nZ8-002Kci-ET; Wed, 21 Dec 2022 01:06:38 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1p7nYw-004CM7-JD; 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_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Thomas Huth , =?utf-8?q?Alex_Benn=C3=A9e?= , Juan Quintela , "Dr . David Alan Gilbert" , Claudio Fontana Subject: [RFC PATCH v4 15/47] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode Date: Wed, 21 Dec 2022 01:05:51 +0000 Message-Id: <20221221010623.1000191-16-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 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Received-SPF: none client-ip=2001:8b0:10b:1236::1; envelope-from=BATV+b12bb331c036832273ad+7059+infradead.org+dwmw2@casper.srs.infradead.org; helo=casper.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: David Woodhouse The xen_overlay device (and later similar devices for event channels and grant tables) need to be instantiated. Do this from a kvm_type method on the PC machine derivatives, since KVM is only way to support Xen emulation for now. Signed-off-by: David Woodhouse --- hw/i386/pc.c | 11 +++++++++++ include/hw/i386/pc.h | 3 +++ 2 files changed, 14 insertions(+) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 546b703cb4..d8c5b1814e 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -89,6 +89,7 @@ #include "hw/virtio/virtio-iommu.h" #include "hw/virtio/virtio-pmem-pci.h" #include "hw/virtio/virtio-mem-pci.h" +#include "hw/i386/kvm/xen_overlay.h" #include "hw/mem/memory-device.h" #include "sysemu/replay.h" #include "target/i386/cpu.h" @@ -1842,6 +1843,16 @@ static void pc_machine_initfn(Object *obj) cxl_machine_init(obj, &pcms->cxl_devices_state); } +int pc_machine_kvm_type(MachineState *machine, const char *kvm_type) +{ +#ifdef CONFIG_XEN_EMU + if (xen_mode == XEN_EMULATE) { + xen_overlay_create(); + } +#endif + return 0; +} + static void pc_machine_reset(MachineState *machine, ShutdownCause reason) { CPUState *cs; diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index c95333514e..e82224857e 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -290,12 +290,15 @@ extern const size_t pc_compat_1_5_len; extern GlobalProperty pc_compat_1_4[]; extern const size_t pc_compat_1_4_len; +extern int pc_machine_kvm_type(MachineState *machine, const char *vm_type); + #define DEFINE_PC_MACHINE(suffix, namestr, initfn, optsfn) \ static void pc_machine_##suffix##_class_init(ObjectClass *oc, void *data) \ { \ MachineClass *mc = MACHINE_CLASS(oc); \ optsfn(mc); \ mc->init = initfn; \ + mc->kvm_type = pc_machine_kvm_type; \ } \ static const TypeInfo pc_machine_type_##suffix = { \ .name = namestr TYPE_MACHINE_SUFFIX, \