From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C563F7B; Fri, 27 Jan 2023 11:28:42 +0000 (UTC) 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> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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; -- 2.34.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 1C0EFC61DA4 for ; Fri, 27 Jan 2023 11:35:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PU1+DP66oySIAxI2yE7t3AEZ+ykhiqtNjy7ndKckyS4=; b=qTcTy8rdKc33XS Kbn4kGYF+9XuBDSKENN4oPM/jA+AvmVL/wtFK4lz9X7Xd2p0dNImNxb4eVzEmGvgAbQn/rOmc6TpK 6bBTsWZuvx4VsZ5ct4CEy+LP0VUkV3n/8uCMZXdEyJTVybCXe1cY976mUmH1thAkBTNBnD2Aop/uu p328qYqbtxHx1SWmJazzOiV0C36mHX6nzio2Zl/JvWVaWGCA4hWaTSEFbkY44L6c+sxN4KhMSl4/E EvO0iRjKKA4vUQe0z3KAUkhhwLPDV2hm2GyzGegZrrpBeJlJ8RRVpNB8ZoM/WPSlGzI9nt6Xq9hgk LGLS/aiSjrjQbegohTnQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLMzq-00EA0n-9c; Fri, 27 Jan 2023 11:34:18 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLMuS-00E7Nn-NG for linux-arm-kernel@lists.infradead.org; Fri, 27 Jan 2023 11:28:46 +0000 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_032844_861887_0BF9B566 X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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; -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel