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 X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC270C433E7 for ; Wed, 14 Oct 2020 17:53:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5EBA622246 for ; Wed, 14 Oct 2020 17:53:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nKZUjGXM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728276AbgJNRx6 (ORCPT ); Wed, 14 Oct 2020 13:53:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728040AbgJNRx5 (ORCPT ); Wed, 14 Oct 2020 13:53:57 -0400 Received: from mail-il1-x144.google.com (mail-il1-x144.google.com [IPv6:2607:f8b0:4864:20::144]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE55DC061755 for ; Wed, 14 Oct 2020 10:53:57 -0700 (PDT) Received: by mail-il1-x144.google.com with SMTP id p9so267156ilr.1 for ; Wed, 14 Oct 2020 10:53:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=kNA7XdpIZYXKzRQjpHvs7EGpy//348CMdfmkrip0gJQ=; b=nKZUjGXMEvm82reNTDrwwnVGhfvkR8nBHBIkIGWc/7najPmnztimJ2Y2MPbe1HVnEZ PE4xmTrONc8ehF8itOwCT9lxIwpW7MfMK9kAtK4odWRlyCtm4y/TJzaSFx7ptXtz+jT+ mnXIHov8FSkxTJh4b/zJvUAZ40Hb/bqcIl8CYPAxQlRrvNVSkaH+JzjQ455IxqxYa+ug 9SOKt27fCZruecRT05ajlf4UytbgJw0kAalMZManyBLVyKhBgrewbeKHFpsZFsb0cNP7 2hjUlQAxt79uBrN/WLGHxDnO48hXuKaJFkd1J+peAdp5qzztUtBP5+ybmwKMKdLhHZF0 pN0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=kNA7XdpIZYXKzRQjpHvs7EGpy//348CMdfmkrip0gJQ=; b=hXj/mHSmGIYSaUvKzGol/f43g8JDcFdA7uan13DgZRK4os8VsyqaX97f6MWqI11M6z eEIYLxl3z3LTYpMrszWquAFM6q79M5kIA90n5mJklt4irOV4Tslni24LfsZ8ADBWOIAJ pataQZssAcitTdhstvBmdhoVIVPVf5fzlnmYlsYiJPItH3yHVPHO6k80ivxY/xldDo+H Fa6pNzGCCCEzcKU+lR8EuV4msv13iyb0Ka2bDqi9mGmRDwYNK7USjv2xnfajsCj0lFGP PFen4qUg3xC1Hgi3Zyofnuz0ZYYgWwotasqNQ0neXzJerJ1GcXoQ2gVAVs25DDBWJByg 1UfA== X-Gm-Message-State: AOAM531GNOao/QbRm8MG6HfY5M9h2WJvhUHLJjuupBghL6cxg+D0NPvj B69BzV49kfBopAbE6M7XXa4= X-Google-Smtp-Source: ABdhPJwK36uGgi3FZj3ET63aoMSgUwsTywlp/l6U8zvhBjSeEYqB2o8vtAMqwJulJ8pMwnCSxMQw/g== X-Received: by 2002:a92:d5c1:: with SMTP id d1mr269086ilq.212.1602698036971; Wed, 14 Oct 2020 10:53:56 -0700 (PDT) Received: from pm2-ws13.praxislan02.com ([2001:470:8:67e:ba27:ebff:fee8:ce27]) by smtp.gmail.com with ESMTPSA id v15sm67765ile.37.2020.10.14.10.53.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2020 10:53:56 -0700 (PDT) From: Jason Andryuk To: Boris Ostrovsky , Juergen Gross , Stefano Stabellini Cc: Jason Andryuk , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] xen: Remove Xen PVH/PVHVM dependency on PCI Date: Wed, 14 Oct 2020 13:53:40 -0400 Message-Id: <20201014175342.152712-2-jandryuk@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201014175342.152712-1-jandryuk@gmail.com> References: <20201014175342.152712-1-jandryuk@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A Xen PVH domain doesn't have a PCI bus or devices, so it doesn't need PCI support built in. Currently, XEN_PVH depends on XEN_PVHVM which depends on PCI. Introduce XEN_PVHVM_GUEST as a toplevel item and change XEN_PVHVM to a hidden variable. This allows XEN_PVH to depend on XEN_PVHVM without PCI while XEN_PVHVM_GUEST depends on PCI. In drivers/xen, compile platform-pci depending on XEN_PVHVM_GUEST since that pulls in the PCI dependency for linking. Signed-off-by: Jason Andryuk --- --- arch/x86/xen/Kconfig | 18 ++++++++++++------ drivers/xen/Makefile | 2 +- 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 218acbd5c7a0..b75007eb4ec4 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -39,16 +39,20 @@ config XEN_DOM0 Support running as a Xen PV Dom0 guest. config XEN_PVHVM - bool "Xen PVHVM guest support" - default y - depends on XEN && PCI && X86_LOCAL_APIC - help - Support running as a Xen PVHVM guest. + def_bool y + depends on XEN && X86_LOCAL_APIC config XEN_PVHVM_SMP def_bool y depends on XEN_PVHVM && SMP +config XEN_PVHVM_GUEST + bool "Xen PVHVM guest support" + default y + depends on XEN_PVHVM && PCI + help + Support running as a Xen PVHVM guest. + config XEN_512GB bool "Limit Xen pv-domain memory to 512GB" depends on XEN_PV @@ -76,7 +80,9 @@ config XEN_DEBUG_FS Enabling this option may incur a significant performance overhead. config XEN_PVH - bool "Support for running as a Xen PVH guest" + bool "Xen PVH guest support" depends on XEN && XEN_PVHVM && ACPI select PVH def_bool n + help + Support for running as a Xen PVH guest. diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index babdca808861..c3621b9f4012 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -21,7 +21,7 @@ obj-$(CONFIG_XEN_GNTDEV) += xen-gntdev.o obj-$(CONFIG_XEN_GRANT_DEV_ALLOC) += xen-gntalloc.o obj-$(CONFIG_XENFS) += xenfs/ obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o -obj-$(CONFIG_XEN_PVHVM) += platform-pci.o +obj-$(CONFIG_XEN_PVHVM_GUEST) += platform-pci.o obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o obj-$(CONFIG_XEN_MCE_LOG) += mcelog.o obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback/ -- 2.26.2