From nobody Mon Feb 9 23:40:05 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail(p=none dis=none) header.from=arm.com Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1658296029783913.2303509404105; Tue, 19 Jul 2022 22:47:09 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.371340.603234 (Exim 4.92) (envelope-from ) id 1oE2Xs-0008FY-EF; Wed, 20 Jul 2022 05:46:52 +0000 Received: by outflank-mailman (output) from mailman id 371340.603234; Wed, 20 Jul 2022 05:46:52 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oE2Xs-0008FK-9D; Wed, 20 Jul 2022 05:46:52 +0000 Received: by outflank-mailman (input) for mailman id 371340; Wed, 20 Jul 2022 05:46:51 +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 1oE2Xr-0006VQ-3N for xen-devel@lists.xenproject.org; Wed, 20 Jul 2022 05:46:51 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-flk1.inumbo.com (Halon) with ESMTP id 599e7393-07ef-11ed-924f-1f966e50362f; Wed, 20 Jul 2022 07:46:50 +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 2AADE1042; Tue, 19 Jul 2022 22:46:50 -0700 (PDT) Received: from a011292.shanghai.arm.com (a011292.shanghai.arm.com [10.169.190.94]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C1A973F70D; Tue, 19 Jul 2022 22:46:45 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version 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: 599e7393-07ef-11ed-924f-1f966e50362f From: Penny Zheng To: xen-devel@lists.xenproject.org Cc: wei.chen@arm.com, Penny Zheng , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk , Andrew Cooper , George Dunlap , Jan Beulich , Wei Liu , Penny Zheng , Julien Grall Subject: [PATCH v9 5/8] xen/arm: introduce CDF_staticmem Date: Wed, 20 Jul 2022 13:46:08 +0800 Message-Id: <20220720054611.2695787-6-Penny.Zheng@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220720054611.2695787-1-Penny.Zheng@arm.com> References: <20220720054611.2695787-1-Penny.Zheng@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1658296031583100001 Content-Type: text/plain; charset="utf-8" In order to have an easy and quick way to find out whether this domain memo= ry is statically configured, this commit introduces a new flag CDF_staticmem a= nd a new helper is_domain_using_staticmem() to tell. Signed-off-by: Penny Zheng Acked-by: Julien Grall Acked-by: Jan Beulich --- v9 changes: - no change --- v8 changes: - #ifdef-ary around is_domain_using_staticmem() is not needed anymore --- v7 changes: - IS_ENABLED(CONFIG_STATIC_MEMORY) would not be needed anymore --- v6 changes: - move non-zero is_domain_using_staticmem() from ARM header to common header --- v5 changes: - guard "is_domain_using_staticmem" under CONFIG_STATIC_MEMORY - #define is_domain_using_staticmem zero if undefined --- v4 changes: - no changes --- v3 changes: - change name from "is_domain_static()" to "is_domain_using_staticmem" --- v2 changes: - change name from "is_domain_on_static_allocation" to "is_domain_static()" --- xen/arch/arm/domain_build.c | 5 ++++- xen/include/xen/domain.h | 8 ++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 3fd1186b53..b76a84e8f5 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -3287,9 +3287,12 @@ void __init create_domUs(void) if ( !dt_device_is_compatible(node, "xen,domain") ) continue; =20 + if ( dt_find_property(node, "xen,static-mem", NULL) ) + flags |=3D CDF_staticmem; + if ( dt_property_read_bool(node, "direct-map") ) { - if ( !IS_ENABLED(CONFIG_STATIC_MEMORY) || !dt_find_property(no= de, "xen,static-mem", NULL) ) + if ( !(flags & CDF_staticmem) ) panic("direct-map is not valid for domain %s without stati= c allocation.\n", dt_node_name(node)); =20 diff --git a/xen/include/xen/domain.h b/xen/include/xen/domain.h index 628b14b086..2c8116afba 100644 --- a/xen/include/xen/domain.h +++ b/xen/include/xen/domain.h @@ -35,6 +35,14 @@ void arch_get_domain_info(const struct domain *d, /* Should domain memory be directly mapped? */ #define CDF_directmap (1U << 1) #endif +/* Is domain memory on static allocation? */ +#ifdef CONFIG_STATIC_MEMORY +#define CDF_staticmem (1U << 2) +#else +#define CDF_staticmem 0 +#endif + +#define is_domain_using_staticmem(d) ((d)->cdf & CDF_staticmem) =20 /* * Arch-specifics. --=20 2.25.1