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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w2-20020a170902d10200b001964a47aca0si2811367plw.583.2023.01.27.03.31.29; Fri, 27 Jan 2023 03:31:42 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233512AbjA0Lan (ORCPT + 99 others); Fri, 27 Jan 2023 06:30:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233496AbjA0L36 (ORCPT ); Fri, 27 Jan 2023 06:29:58 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BB6DA78AF2 for ; Fri, 27 Jan 2023 03:29:05 -0800 (PST) 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 5DCAB168F; Fri, 27 Jan 2023 03:29:24 -0800 (PST) Received: from e122027.cambridge.arm.com (e122027.cambridge.arm.com [10.1.35.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 27EEF3F8D6; Fri, 27 Jan 2023 03:28:40 -0800 (PST) From: Steven Price To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: Steven Price , Catalin Marinas , Ard Biesheuvel , Marc Zyngier , Will Deacon , Suzuki K Poulose , James Morse , Oliver Upton , Zenghui Yu , linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev Subject: [RFC PATCH 12/14] efi: arm64: Map Device with Prot Shared Date: Fri, 27 Jan 2023 11:27:56 +0000 Message-Id: <20230127112758.37891-13-steven.price@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127112758.37891-1-steven.price@arm.com> References: <20230127112248.136810-1-suzuki.poulose@arm.com> <20230127112758.37891-1-steven.price@arm.com> MIME-Version: 1.0 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1756175115617255947?= X-GMAIL-MSGID: =?utf-8?q?1756175115617255947?= From: Suzuki K Poulose Device mappings need to be emualted by the VMM so must be mapped shared with the host. Signed-off-by: Suzuki K Poulose Signed-off-by: Steven Price --- arch/arm64/kernel/efi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index fab05de2e12d..03a876707fc5 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -31,7 +31,7 @@ static __init pteval_t create_mapping_protection(efi_memory_desc_t *md) u32 type = md->type; if (type == EFI_MEMORY_MAPPED_IO) - return PROT_DEVICE_nGnRE; + return PROT_NS_SHARED | PROT_DEVICE_nGnRE; if (region_is_misaligned(md)) { static bool __initdata code_is_misaligned;