From patchwork Wed Jun 24 17:52:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Catalin Marinas X-Patchwork-Id: 11623987 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 84A9F14F6 for ; Wed, 24 Jun 2020 17:57:07 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2B016206EB for ; Wed, 24 Jun 2020 17:57:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hhp8rD2t" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2B016206EB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5TUwpcCcMsrNxakYqW1czAX16B4NqJPDfkYRXXwuXJI=; b=hhp8rD2tm9OAJnN795WXEdqde Q2Nyy48Rl1Qy3iUvInpB94Xw8KVvtcTKiD9I5QCcSUF1fsRyeXVWx8w/9uUNv9rv0zclRBJgVOBsf b/aBxjHdgib0TlqnyeKR3/xwY7oLBJvDds0nBKgd5TM0ON0BtaWv3YgoLifGgJlkYoCFlQ+sPVGRk 36ibmT1hMs0XXqEpctnYRfybwL0hrpUND0+Kfj37ES0nOTYR40RMQVPRvQ3hyHE7MARMqsPr0Q0Xf 0VFe1ZytV9vMnvZoF7FuRA2kab8Yp4XNHjGXNm43rreEyiuGVewUgCOMYG+z/yxCGgO6YFixUDw51 ERTA4Ywcg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jo9bc-0004og-Bo; Wed, 24 Jun 2020 17:54:41 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jo9Zy-00044m-BJ for linux-arm-kernel@lists.infradead.org; Wed, 24 Jun 2020 17:52:59 +0000 Received: from localhost.localdomain (unknown [2.26.170.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8F16A207E8; Wed, 24 Jun 2020 17:52:55 +0000 (UTC) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 04/25] arm64: mte: Add specific SIGSEGV codes Date: Wed, 24 Jun 2020 18:52:23 +0100 Message-Id: <20200624175244.25837-5-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200624175244.25837-1-catalin.marinas@arm.com> References: <20200624175244.25837-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -5.0 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Arnd Bergmann , Szabolcs Nagy , Andrey Konovalov , Kevin Brodsky , Peter Collingbourne , linux-mm@kvack.org, Andrew Morton , Vincenzo Frascino , Will Deacon , Dave P Martin Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Vincenzo Frascino Add MTE-specific SIGSEGV codes to siginfo.h and update the x86 BUILD_BUG_ON(NSIGSEGV != 7) compile check. Signed-off-by: Vincenzo Frascino [catalin.marinas@arm.com: renamed precise/imprecise to sync/async] [catalin.marinas@arm.com: dropped #ifdef __aarch64__, renumbered] Signed-off-by: Catalin Marinas Acked-by: "Eric W. Biederman" Cc: Arnd Bergmann Cc: Will Deacon --- Notes: v3: - Fixed the BUILD_BUG_ON(NSIGSEGV != 7) on x86 - Updated the commit log v2: - Dropped the #ifdef __aarch64__. - Renumbered the SEGV_MTE* values to avoid clash with ADI. arch/x86/kernel/signal_compat.c | 2 +- include/uapi/asm-generic/siginfo.h | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c index 9ccbf0576cd0..a7f3e12cfbdb 100644 --- a/arch/x86/kernel/signal_compat.c +++ b/arch/x86/kernel/signal_compat.c @@ -27,7 +27,7 @@ static inline void signal_compat_build_tests(void) */ BUILD_BUG_ON(NSIGILL != 11); BUILD_BUG_ON(NSIGFPE != 15); - BUILD_BUG_ON(NSIGSEGV != 7); + BUILD_BUG_ON(NSIGSEGV != 9); BUILD_BUG_ON(NSIGBUS != 5); BUILD_BUG_ON(NSIGTRAP != 5); BUILD_BUG_ON(NSIGCHLD != 6); diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h index cb3d6c267181..7aacf9389010 100644 --- a/include/uapi/asm-generic/siginfo.h +++ b/include/uapi/asm-generic/siginfo.h @@ -229,7 +229,9 @@ typedef struct siginfo { #define SEGV_ACCADI 5 /* ADI not enabled for mapped object */ #define SEGV_ADIDERR 6 /* Disrupting MCD error */ #define SEGV_ADIPERR 7 /* Precise MCD exception */ -#define NSIGSEGV 7 +#define SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */ +#define SEGV_MTESERR 9 /* Synchronous ARM MTE exception */ +#define NSIGSEGV 9 /* * SIGBUS si_codes