From nobody Thu Jul 10 07:41:36 2025 Delivered-To: importer2@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+importer2=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 1677679207024167.2355463645406; Wed, 1 Mar 2023 06:00:07 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pXMv6-00049X-Hp; Wed, 01 Mar 2023 08:55:00 -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 1pXMsy-0008Vn-KM for qemu-devel@nongnu.org; Wed, 01 Mar 2023 08:52:50 -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 1pXMsu-0002kq-5a for qemu-devel@nongnu.org; Wed, 01 Mar 2023 08:52:47 -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 1pXMsb-001f3W-Du; Wed, 01 Mar 2023 13:52:26 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1pXMsb-0049Th-1O; Wed, 01 Mar 2023 13:52:25 +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=OAhPTEpmYYE0ZgUcgb3iHlMk7OugoJYsLqD/L+8yyC0=; b=poRtNgEfQtJeoHqMJnw0HYY8Ll adZgrjDpAbOUs/5h6fAstYL1ESNmzVm79vqzsbZDcirOFx6/rEIL1mF/7kWxekS1pAk0t41DoXhpK FF1LkOpAWiFJYajwiuhnTgvdFawtZiTPOErKrN+N9AZva2pASk9iBU0LGopeAym1zavPKh61TQXtF UnT6pU5MLnM7h2C4Qvaa9sOXSDQKTtTJotKpW3JVh22O92dxWa7jPL1PxARLGLFfMOCF14b7P9X+c JU7L+JFGDyD4dfjzgINQJF6bS/AMWpEQP+2ic4UOGB3nYMssMZtGKiuljynjiY2M+4wZ1dQwA17eT 10Ao2jJg==; 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, Stefano Stabellini , vikram.garhwal@amd.com Subject: [PATCH v15 02/60] xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation Date: Wed, 1 Mar 2023 13:51:25 +0000 Message-Id: <20230301135223.988336-3-dwmw2@infradead.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230301135223.988336-1-dwmw2@infradead.org> References: <20230301135223.988336-1-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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2001:8b0:10b:1236::1; envelope-from=BATV+f4e15e254fb7e3cd38fc+7129+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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1677679207601100005 Content-Type: text/plain; charset="utf-8" From: David Woodhouse The XEN_EMU option will cover core Xen support in target/, which exists only for x86 with KVM today but could theoretically also be implemented on Arm/Aarch64 and with TCG or other accelerators (if anyone wants to run the gauntlet of struct layout compatibility, errno mapping, and the rest of that fui). It will also cover the support for architecture-independent grant table and event channel support which will be added in hw/i386/kvm/ (on the basis that the non-KVM support is very theoretical and making it not use KVM directly seems like gratuitous overengineering at this point). The XEN_BUS option is for the xenfv platform support, which will now be used both by XEN_EMU and by real Xen. The XEN option remains dependent on the Xen runtime libraries, and covers support for real Xen. Some code which currently resides under CONFIG_XEN will be moving to CONFIG_XEN_BUS over time as the direct dependencies on Xen runtime libraries are eliminated. The Xen PCI platform device will also reside under CONFIG_XEN_BUS. Signed-off-by: David Woodhouse Reviewed-by: Paul Durrant --- hw/Kconfig | 1 + hw/i386/Kconfig | 5 +++++ hw/xen/Kconfig | 3 +++ meson.build | 1 + 4 files changed, 10 insertions(+) create mode 100644 hw/xen/Kconfig diff --git a/hw/Kconfig b/hw/Kconfig index 38233bbb0f..ba62ff6417 100644 --- a/hw/Kconfig +++ b/hw/Kconfig @@ -41,6 +41,7 @@ source tpm/Kconfig source usb/Kconfig source virtio/Kconfig source vfio/Kconfig +source xen/Kconfig source watchdog/Kconfig =20 # arch Kconfig diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig index 9fbfe748b5..d40802d83f 100644 --- a/hw/i386/Kconfig +++ b/hw/i386/Kconfig @@ -136,3 +136,8 @@ config VMPORT config VMMOUSE bool depends on VMPORT + +config XEN_EMU + bool + default y + depends on KVM && (I386 || X86_64) diff --git a/hw/xen/Kconfig b/hw/xen/Kconfig new file mode 100644 index 0000000000..3467efb986 --- /dev/null +++ b/hw/xen/Kconfig @@ -0,0 +1,3 @@ +config XEN_BUS + bool + default y if (XEN || XEN_EMU) diff --git a/meson.build b/meson.build index 77d2ae87e4..71a14e6b3d 100644 --- a/meson.build +++ b/meson.build @@ -3881,6 +3881,7 @@ if have_system if xen.found() summary_info +=3D {'xen ctrl version': xen.version()} endif + summary_info +=3D {'Xen emulation': config_all.has_key('CONFIG_XEN_E= MU')} endif summary_info +=3D {'TCG support': config_all.has_key('CONFIG_TCG')} if config_all.has_key('CONFIG_TCG') --=20 2.39.0