From patchwork Mon Apr 25 13:46:31 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Rutland X-Patchwork-Id: 66579 Delivered-To: patch@linaro.org Received: by 10.140.93.198 with SMTP id d64csp1047518qge; Mon, 25 Apr 2016 06:47:50 -0700 (PDT) X-Received: by 10.98.109.198 with SMTP id i189mr7078049pfc.106.1461592070870; Mon, 25 Apr 2016 06:47:50 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id ul1si7128207pab.19.2016.04.25.06.47.50; Mon, 25 Apr 2016 06:47:50 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932741AbcDYNrt (ORCPT + 29 others); Mon, 25 Apr 2016 09:47:49 -0400 Received: from foss.arm.com ([217.140.101.70]:46448 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932485AbcDYNqu (ORCPT ); Mon, 25 Apr 2016 09:46:50 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EF5F2440; Mon, 25 Apr 2016 06:45:30 -0700 (PDT) Received: from leverpostej.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id BA4D63F25F; Mon, 25 Apr 2016 06:46:47 -0700 (PDT) From: Mark Rutland To: linux-efi@vger.kernel.org Cc: ard.biesheuvel@linaro.org, catalin.marinas@arm.com, hpa@zytor.com, leif.lindholm@linaro.org, linux-arm-kernel@lists.infradead.org, linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, mark.rutland@arm.com, matt@codeblueprint.co.uk, mingo@redhat.com, tglx@linutronix.de, will.deacon@arm.com Subject: [PATCHv3 2/5] arm64/efi: enable runtime call flag checking Date: Mon, 25 Apr 2016 14:46:31 +0100 Message-Id: <1461591994-14918-3-git-send-email-mark.rutland@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1461591994-14918-1-git-send-email-mark.rutland@arm.com> References: <1461591994-14918-1-git-send-email-mark.rutland@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Define ARCH_EFI_IRQ_FLAGS_MASK for arm64, which will enable the generic runtime wrapper code to detect when firmware erroneously modifies flags over a runtime services function call. Signed-off-by: Mark Rutland Cc: Ard Biesheuvel Cc: Catalin Marinas Cc: Leif Lindholm Cc: Matt Fleming Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-efi@vger.kernel.org --- arch/arm64/include/asm/efi.h | 3 +++ 1 file changed, 3 insertions(+) -- 1.9.1 Acked-by: Will Deacon diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index f4f71224..b44603e 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -4,6 +4,7 @@ #include #include #include +#include #include #ifdef CONFIG_EFI @@ -33,6 +34,8 @@ int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md); kernel_neon_end(); \ }) +#define ARCH_EFI_IRQ_FLAGS_MASK (PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT) + /* arch specific definitions used by the stub code */ /*