From patchwork Tue Apr 25 07:56:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henry Wang X-Patchwork-Id: 13222995 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 87469C77B7F for ; Tue, 25 Apr 2023 07:59:20 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.525801.817290 (Exim 4.92) (envelope-from ) id 1prDZv-0003Cx-4H; Tue, 25 Apr 2023 07:59:11 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 525801.817290; Tue, 25 Apr 2023 07:59:11 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1prDZu-0003BT-W2; Tue, 25 Apr 2023 07:59:10 +0000 Received: by outflank-mailman (input) for mailman id 525801; Tue, 25 Apr 2023 07:59:09 +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 1prDYr-0005uB-FT for xen-devel@lists.xenproject.org; Tue, 25 Apr 2023 07:58:05 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-flk1.inumbo.com (Halon) with ESMTP id e7d41e6c-e33e-11ed-8611-37d641c3527e; Tue, 25 Apr 2023 09:58:03 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 31B9ED75; Tue, 25 Apr 2023 00:58:47 -0700 (PDT) Received: from a015966.shanghai.arm.com (a015966.shanghai.arm.com [10.169.190.5]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DBC503F587; Tue, 25 Apr 2023 00:58:00 -0700 (PDT) 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: e7d41e6c-e33e-11ed-8611-37d641c3527e From: Henry Wang To: xen-devel@lists.xenproject.org Cc: Wei Chen , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk , Henry Wang Subject: [PATCH v4 16/17] xen/arm: Provide Kconfig options for Arm to enable NUMA Date: Tue, 25 Apr 2023 15:56:54 +0800 Message-Id: <20230425075655.4037980-17-Henry.Wang@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230425075655.4037980-1-Henry.Wang@arm.com> References: <20230425075655.4037980-1-Henry.Wang@arm.com> MIME-Version: 1.0 From: Wei Chen Arm platforms support both ACPI and device tree. We don't want users to select device tree NUMA or ACPI NUMA manually. We hope users can just enable NUMA for Arm, and device tree NUMA and ACPI NUMA can be selected depends on device tree feature and ACPI feature status automatically. In this case, these two kinds of NUMA support code can be co-exist in one Xen binary. Xen can check feature flags to decide using device tree or ACPI as NUMA based firmware. So in this patch, we introduce a generic option: CONFIG_ARM_NUMA for users to enable NUMA for Arm. And one CONFIG_DEVICE_TREE_NUMA option for ARM_NUMA to select when HAS_DEVICE_TREE option is enabled. Once when ACPI NUMA for Arm is supported, ACPI_NUMA can be selected here too. Signed-off-by: Wei Chen Signed-off-by: Henry Wang --- v3 -> v4: 1. No change. v2 -> v3: 1. No change. v1 -> v2: 1. Remove the condition of selecting DEVICE_TREE_NUMA. --- xen/arch/arm/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig index 239d3aed3c..e751ad50d1 100644 --- a/xen/arch/arm/Kconfig +++ b/xen/arch/arm/Kconfig @@ -39,6 +39,17 @@ config ACPI config ARM_EFI bool +config ARM_NUMA + bool "Arm NUMA (Non-Uniform Memory Access) Support (UNSUPPORTED)" if UNSUPPORTED + depends on HAS_DEVICE_TREE + select DEVICE_TREE_NUMA + help + Enable Non-Uniform Memory Access (NUMA) for Arm architecutres + +config DEVICE_TREE_NUMA + bool + select NUMA + config GICV3 bool "GICv3 driver" depends on !NEW_VGIC