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dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 40.67.248.234 as permitted sender) receiver=protection.outlook.com; client-ip=40.67.248.234; helo=nebula.arm.com; pr=C From: Wei Chen To: CC: , Wei Chen , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk , Jiamei Xie Subject: [PATCH v5 5/8] xen/arm: use !CONFIG_NUMA to keep fake NUMA API Date: Mon, 6 Jun 2022 12:09:13 +0800 Message-ID: <20220606040916.122184-6-wei.chen@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220606040916.122184-1-wei.chen@arm.com> References: <20220606040916.122184-1-wei.chen@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 1 X-MS-Office365-Filtering-Correlation-Id: 19bf49c7-5193-4fa0-cb81-08da47726b18 X-MS-TrafficTypeDiagnostic: AM0PR08MB3956:EE_|VE1EUR03FT012:EE_|VI1PR0802MB2157:EE_ X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jun 2022 04:09:57.3883 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 19bf49c7-5193-4fa0-cb81-08da47726b18 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: VE1EUR03FT012.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0802MB2157 X-ZohoMail-DKIM: pass (identity @armh.onmicrosoft.com) X-ZM-MESSAGEID: 1654488630616100003 Content-Type: text/plain; charset="utf-8" We have introduced CONFIG_NUMA in a previous patch. And this option is enabled only on x86 at the current stage. In a follow up patch, we will enable this option for Arm. But we still want users to be able to disable the CONFIG_NUMA via Kconfig. In this case, keep the fake NUMA API, will make Arm code still able to work with NUMA aware memory allocation and scheduler. Signed-off-by: Wei Chen Tested-by: Jiamei Xie Reviewed-by: Stefano Stabellini --- v3 -> v4: no change v2 -> v3: Add Tb. v1 -> v2: No change. --- xen/arch/arm/include/asm/numa.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/xen/arch/arm/include/asm/numa.h b/xen/arch/arm/include/asm/num= a.h index e4c4d89192..268a9db055 100644 --- a/xen/arch/arm/include/asm/numa.h +++ b/xen/arch/arm/include/asm/numa.h @@ -5,6 +5,8 @@ =20 typedef u8 nodeid_t; =20 +#ifndef CONFIG_NUMA + /* Fake one node for now. See also node_online_map. */ #define cpu_to_node(cpu) 0 #define node_to_cpumask(node) (cpu_online_map) @@ -24,6 +26,9 @@ extern mfn_t first_valid_mfn; #define node_spanned_pages(nid) (max_page - mfn_x(first_valid_mfn)) #define node_start_pfn(nid) (mfn_x(first_valid_mfn)) #define __node_distance(a, b) (20) + +#endif + #define arch_want_default_dmazone() (false) =20 #endif /* __ARCH_ARM_NUMA_H */ --=20 2.25.1