From patchwork Tue Jul 30 10:16:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergiy Kibrik X-Patchwork-Id: 13747181 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 941ADC3DA49 for ; Tue, 30 Jul 2024 10:16:35 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.767454.1178101 (Exim 4.92) (envelope-from ) id 1sYju6-0000n8-0g; Tue, 30 Jul 2024 10:16:26 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 767454.1178101; Tue, 30 Jul 2024 10:16:25 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sYju5-0000n1-UG; Tue, 30 Jul 2024 10:16:25 +0000 Received: by outflank-mailman (input) for mailman id 767454; Tue, 30 Jul 2024 10:16:24 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sYju4-0000j2-8k for xen-devel@lists.xenproject.org; Tue, 30 Jul 2024 10:16:24 +0000 Received: from pb-smtp21.pobox.com (pb-smtp21.pobox.com [173.228.157.53]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id c3ec1bc8-4e5c-11ef-8776-851b0ebba9a2; Tue, 30 Jul 2024 12:16:21 +0200 (CEST) Received: from pb-smtp21.pobox.com (unknown [127.0.0.1]) by pb-smtp21.pobox.com (Postfix) with ESMTP id A63103ED1B; Tue, 30 Jul 2024 06:16:19 -0400 (EDT) (envelope-from sakib@darkstar.site) Received: from pb-smtp21.sea.icgroup.com (unknown [127.0.0.1]) by pb-smtp21.pobox.com (Postfix) with ESMTP id 9E6FB3ED1A; Tue, 30 Jul 2024 06:16:19 -0400 (EDT) (envelope-from sakib@darkstar.site) Received: from localhost (unknown [185.130.54.90]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp21.pobox.com (Postfix) with ESMTPSA id 692143ED17; Tue, 30 Jul 2024 06:16:15 -0400 (EDT) (envelope-from sakib@darkstar.site) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: c3ec1bc8-4e5c-11ef-8776-851b0ebba9a2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=pobox.com; h=from:to:cc :subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; s=sasl; bh=L6AETPgQkcYiX+QHAexZ2iwZP QZAtjMQ/7c+q/KthCY=; b=ZnAMwby1nAwHKozP7D5swP3F1R2OD9umUiN3T9NQG QBUQIVqr7Yw+9BFFT/k2oiA3np5pIjw8wbGbXqOJa3cB62bpSK7ff1Ey1+HTNT/J 8flAUhreNsB8DI/7p2dQTz6I6qQ2m0ZAf1iMoR6HKyt/IKhWEqba2Yksh12MpyG0 XU= From: Sergiy Kibrik To: xen-devel@lists.xenproject.org Cc: Xenia Ragiadakou , Jan Beulich , Andrew Cooper , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Stefano Stabellini , Xenia Ragiadakou , Sergiy Kibrik Subject: [XEN PATCH v5 01/13] x86: introduce AMD-V and Intel VT-x Kconfig options Date: Tue, 30 Jul 2024 13:16:11 +0300 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-Pobox-Relay-ID: C10B3904-4E5C-11EF-9A5D-9625FCCAB05B-90055647!pb-smtp21.pobox.com From: Xenia Ragiadakou Introduce two new Kconfig options, AMD_SVM and INTEL_VMX, to allow code specific to each virtualization technology to be separated and, when not required, stripped. CONFIG_AMD_SVM will be used to enable virtual machine extensions on platforms that implement the AMD Virtualization Technology (AMD-V). CONFIG_INTEL_VMX will be used to enable virtual machine extensions on platforms that implement the Intel Virtualization Technology (Intel VT-x). Both features depend on HVM support. Since, at this point, disabling any of them would cause Xen to not compile, the options are enabled by default if HVM and are not selectable by the user. No functional change intended. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sergiy Kibrik Acked-by: Jan Beulich --- changes in v5: - change kconfig option name SVM/VMX -> AMD_SVM/INTEL_VMX changes in v3: - tag added changes in v2: - simplify kconfig expression to def_bool HVM - keep file list in Makefile in alphabetical order --- xen/arch/x86/Kconfig | 6 ++++++ xen/arch/x86/hvm/Makefile | 4 ++-- xen/arch/x86/mm/Makefile | 3 ++- xen/arch/x86/mm/hap/Makefile | 2 +- 4 files changed, 11 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig index 7e03e4bc55..fa5405e0d3 100644 --- a/xen/arch/x86/Kconfig +++ b/xen/arch/x86/Kconfig @@ -122,6 +122,12 @@ config HVM If unsure, say Y. +config AMD_SVM + def_bool HVM + +config INTEL_VMX + def_bool HVM + config XEN_SHSTK bool "Supervisor Shadow Stacks" depends on HAS_AS_CET_SS diff --git a/xen/arch/x86/hvm/Makefile b/xen/arch/x86/hvm/Makefile index 3464191544..4c1fa5c6c2 100644 --- a/xen/arch/x86/hvm/Makefile +++ b/xen/arch/x86/hvm/Makefile @@ -1,5 +1,5 @@ -obj-y += svm/ -obj-y += vmx/ +obj-$(CONFIG_AMD_SVM) += svm/ +obj-$(CONFIG_INTEL_VMX) += vmx/ obj-y += viridian/ obj-y += asid.o diff --git a/xen/arch/x86/mm/Makefile b/xen/arch/x86/mm/Makefile index 0803ac9297..52c5abdfee 100644 --- a/xen/arch/x86/mm/Makefile +++ b/xen/arch/x86/mm/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_MEM_SHARING) += mem_sharing.o obj-$(CONFIG_HVM) += nested.o obj-$(CONFIG_HVM) += p2m.o obj-y += p2m-basic.o -obj-$(CONFIG_HVM) += p2m-ept.o p2m-pod.o p2m-pt.o +obj-$(CONFIG_INTEL_VMX) += p2m-ept.o +obj-$(CONFIG_HVM) += p2m-pod.o p2m-pt.o obj-y += paging.o obj-y += physmap.o diff --git a/xen/arch/x86/mm/hap/Makefile b/xen/arch/x86/mm/hap/Makefile index 8ef54b1faa..67c29b2162 100644 --- a/xen/arch/x86/mm/hap/Makefile +++ b/xen/arch/x86/mm/hap/Makefile @@ -3,4 +3,4 @@ obj-y += guest_walk_2.o obj-y += guest_walk_3.o obj-y += guest_walk_4.o obj-y += nested_hap.o -obj-y += nested_ept.o +obj-$(CONFIG_INTEL_VMX) += nested_ept.o