From patchwork Mon Jul 1 09:55:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Price X-Patchwork-Id: 13717740 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 4BB65C30653 for ; Mon, 1 Jul 2024 09:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gQvQCUnk1FGPvH3B9LLw6tnL1CgwZPXEd5Z0HKJliVs=; b=C1YKj4hTtnMxga8eVl5qq+Mdqm 0sWBfm0HoVNpoHhwfxH/gH87+JXI2WTkdDf52dzXHoRZA4ajPI27WTqtMqveB9ljM10cFTwohv0et Ky0zxDHYsVvqmh+YzwEuUefTjsUlQMoToj1HbxJhfLvIydq+KX2WoryONiVLcRODvK9M2UtVv8dYX Is4QTZlbGk+5A1zQcDxM/HuUuz4J9TXskoRhITIhyrxE98GldCCw4Evj2gzTczlrxyrzHX22aOsxN GMVwzsFLLCKcedUIV/tRqps9n40yfcgLeYC9OyIXknMy85Zz88PiAFq5oH8vhXDELZchECUXa0eRn y1ssnMEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sODmY-00000002X3E-2nsU; Mon, 01 Jul 2024 09:57:10 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sODlP-00000002WJK-2jLD for linux-arm-kernel@lists.infradead.org; Mon, 01 Jul 2024 09:56:01 +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 377D0339; Mon, 1 Jul 2024 02:56:24 -0700 (PDT) Received: from e122027.arm.com (unknown [10.57.44.170]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 97F4C3F762; Mon, 1 Jul 2024 02:55:54 -0700 (PDT) From: Steven Price To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Suzuki K Poulose , Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Steven Price Subject: [PATCH v4 11/15] efi: arm64: Map Device with Prot Shared Date: Mon, 1 Jul 2024 10:55:01 +0100 Message-Id: <20240701095505.165383-12-steven.price@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240701095505.165383-1-steven.price@arm.com> References: <20240701095505.165383-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240701_025559_956782_573FC8C4 X-CRM114-Status: GOOD ( 10.74 ) 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: , 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 4a92096db34e..ae1ccc8852a4 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -34,7 +34,7 @@ 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;