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 A8BC5C38142 for ; Sat, 28 Jan 2023 08:21:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pLgOa-0006fW-Tk; Sat, 28 Jan 2023 03:17:09 -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 1pLgJe-00062g-Fu for qemu-devel@nongnu.org; Sat, 28 Jan 2023 03:12:03 -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 1pLgJK-0007oO-2m for qemu-devel@nongnu.org; Sat, 28 Jan 2023 03:12:02 -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=Suj5JaXAV6Dna9OGCQmVqvUJtdLKuoQhB2n7KOFggUo=; b=erTEjf8J+vtf1f8rFQdI8G9fqA Z0MiKNSoc+3Q2hFATWRk7aduKuJJ4+U50FXI790KJsnsZffgGz8kNvo0SBchcCPAU0edNbAjU+bs7 Ca0j+QPRTtfPW8W38DTK8v+sn5KLhy/emcVs7a+xKh5qfsUgCwMxiHv4CEIFxFRsVV3sg4R0oVOHm EdNLx+YcEbuo8Zndw8KRkEXgX4EQDwECT8iKKWXp8GhkFyuFYaEo+jYNd3nBGxUX0fVctqrfHNW7T YLzBCcub3YNL6PrAXP/i0z3JmXZ38tnHJ+N+Q3ugZM7jULH9treonEEzmRylhvPzYwFpKtL0LBWwD WmHxObxg==; 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 1pLgIw-008RKN-0E; 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 1pLgIv-006mHo-3D; Sat, 28 Jan 2023 08:11:17 +0000 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 02/58] xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation Date: Sat, 28 Jan 2023 08:10:17 +0000 Message-Id: <20230128081113.1615111-3-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: 8bit 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+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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 # arch Kconfig diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig index c4fb5b49bd..07b2adc84f 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 6d3b665629..1d8aa323e7 100644 --- a/meson.build +++ b/meson.build @@ -3832,6 +3832,7 @@ if have_system if xen.found() summary_info += {'xen ctrl version': xen.version()} endif + summary_info += {'Xen emulation': config_all.has_key('CONFIG_XEN_EMU')} endif summary_info += {'TCG support': config_all.has_key('CONFIG_TCG')} if config_all.has_key('CONFIG_TCG') -- 2.39.0