From patchwork Mon Aug 24 18:27:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Catalin Marinas X-Patchwork-Id: 11733943 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 EEA5A1575 for ; Mon, 24 Aug 2020 18:28:15 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C63F9206BE for ; Mon, 24 Aug 2020 18:28:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C63F9206BE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D93BC6B000C; Mon, 24 Aug 2020 14:28:13 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id CCA648D0001; Mon, 24 Aug 2020 14:28:13 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B933B6B000E; Mon, 24 Aug 2020 14:28:13 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0215.hostedemail.com [216.40.44.215]) by kanga.kvack.org (Postfix) with ESMTP id A304E6B000C for ; Mon, 24 Aug 2020 14:28:13 -0400 (EDT) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 636C78248047 for ; Mon, 24 Aug 2020 18:28:13 +0000 (UTC) X-FDA: 77186296866.11.jelly31_5507e5627055 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin11.hostedemail.com (Postfix) with ESMTP id 2B1C9180F8B82 for ; Mon, 24 Aug 2020 18:28:13 +0000 (UTC) X-Spam-Summary: 1,0,0,7f4515a737ffec79,d41d8cd98f00b204,cmainas@kernel.org,,RULES_HIT:41:355:379:541:800:960:973:988:989:1260:1311:1314:1345:1359:1431:1437:1515:1534:1542:1711:1730:1747:1777:1792:1981:2194:2199:2393:2559:2562:2693:2895:3138:3139:3140:3141:3142:3353:3865:3867:3868:4250:4321:5007:6119:6261:6742:7576:7875:9121:10004:11026:11232:11473:11658:11914:12043:12296:12297:12438:12517:12519:12555:12679:12986:13180:13229:13894:14096:14181:14394:14721:21080:21220:21230:21451:21627:30012:30054:30070,0,RBL:198.145.29.99:@kernel.org:.lbl8.mailshell.net-64.100.201.201 62.2.0.100;04y8sdchqxjyszajirck3b97485snopjhjw5pnba3gnwhdufmjs54955uyw6nzi.dmihnxgta9kuwb8tq1d7qshnf3ccf8u95tydrqmh7uuhugurzbwpwry4kjp6j1g.o-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:none,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: jelly31_5507e5627055 X-Filterd-Recvd-Size: 3374 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Mon, 24 Aug 2020 18:28:12 +0000 (UTC) Received: from localhost.localdomain (unknown [95.146.230.145]) (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 E5C0A2078D; Mon, 24 Aug 2020 18:28:09 +0000 (UTC) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, Will Deacon , Dave P Martin , Vincenzo Frascino , Szabolcs Nagy , Kevin Brodsky , Andrey Konovalov , Peter Collingbourne , Andrew Morton , Arnd Bergmann Subject: [PATCH v8 04/28] arm64: mte: Add specific SIGSEGV codes Date: Mon, 24 Aug 2020 19:27:34 +0100 Message-Id: <20200824182758.27267-5-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200824182758.27267-1-catalin.marinas@arm.com> References: <20200824182758.27267-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: 2B1C9180F8B82 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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