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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 516C8D3ABF6 for ; Mon, 11 Nov 2024 20:54:58 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D6CFA6B007B; Mon, 11 Nov 2024 15:54:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id D173E6B00B6; Mon, 11 Nov 2024 15:54:52 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B6AC36B00B7; Mon, 11 Nov 2024 15:54:52 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 8BFF16B007B for ; Mon, 11 Nov 2024 15:54:52 -0500 (EST) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 4AE73120D31 for ; Mon, 11 Nov 2024 20:54:52 +0000 (UTC) X-FDA: 82775017164.30.FD92870 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) by imf06.hostedemail.com (Postfix) with ESMTP id 5376818000B for ; Mon, 11 Nov 2024 20:54:21 +0000 (UTC) Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=rivosinc-com.20230601.gappssmtp.com header.s=20230601 header.b=mNDrJDpl; spf=pass (imf06.hostedemail.com: domain of debug@rivosinc.com designates 209.85.214.176 as permitted sender) smtp.mailfrom=debug@rivosinc.com; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1731358436; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=LCvJScsVwtSSPvsUmMz3Q3/hMnyxUHsF6MHlE4BY4IU=; b=r0cK4M4iqBbs1kxQ9qY3U9MgxvhpOEjrFFciOc7NGYAoXSXw2tSn765Q6twQBe1BlEVcgg b8uDmllDprSsDvGsbZDgyepJa2FTeddiQhsDdd+mJWSsSxaBrrhykSQyIQaf6WOuLPOOmh 7we6sUKkBQi8AKJ1KfT+Gxe0I/XuORM= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1731358436; a=rsa-sha256; cv=none; b=6PVt1SMs6z1nAh4hSShsDAseJrzvMAd5SOUoL/93oNwIQ3iuVUIf1vrel7HwCjgasP+R5H Fl3CZ1VtOOuJpTfvX1YEOWwI0SqUcTVDN5Kjc16lnYI4c/EDcTiq7r0KpUNv8eE3KWvMfg 8nDD77ZPgyM/vJQ2qbMNaAt9GzQ5tCg= ARC-Authentication-Results: i=1; imf06.hostedemail.com; dkim=pass header.d=rivosinc-com.20230601.gappssmtp.com header.s=20230601 header.b=mNDrJDpl; spf=pass (imf06.hostedemail.com: domain of debug@rivosinc.com designates 209.85.214.176 as permitted sender) smtp.mailfrom=debug@rivosinc.com; dmarc=none Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-20ce5e3b116so43982535ad.1 for ; Mon, 11 Nov 2024 12:54:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1731358489; x=1731963289; darn=kvack.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=LCvJScsVwtSSPvsUmMz3Q3/hMnyxUHsF6MHlE4BY4IU=; b=mNDrJDplUL0t/fr4ltPM6YJJ/ipoBnUaiohKwOIHtkrsfgETUglQLD59psDxzTT8M1 d2uFutd5xbhvkpnxq5EHAntiuRy3cA9yrxvi7qpG3G1U9bYp70tSRcWNjX0Qu6ZbD1dN j8eLg30QtSJEn3J9HcsN1F/pjzKDcXHywNLfCd63FIMiwiUMieK/oQnugYyeVASNh6BB LfRojLpH5eaVbQx8je9VrCGnsRu20StwYa9JeBlmV819Vgq6gqng/17Cb4n28BL09LMe IKkOaC8vDmwVsrJT90Bbg3vMUwkv7D2OJy5v2BNbT2iy3MvC+SIwQ7Sx0/9wrMyDpjcl acDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731358489; x=1731963289; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=LCvJScsVwtSSPvsUmMz3Q3/hMnyxUHsF6MHlE4BY4IU=; b=ViED4HD43Qbp9kQcxn40lOPjeJQtT/Y5mU4xBNwDEmhaz/BRrFLll4fH8UKBOdP6Vv xXxreFl5LzSRUyUgckLdvQ1w/R/5+7gxSQ/Cb1Y+Nkr80bBrHdi83UPzo5TM+UroGo9D jbQb46yk4Vh0hEC4kF5pIhUP+Bd+mbd3P+yyHHDafN0cn0iE6aC5kwq4XQK9S4RciOBx QVTthPgoPfbV91GlN+9IMzZLBIwbbpKqCzCpXWc8q4CfhU6Wa0O49If54L4Rondw4zcv UtH8iZkFLN2ScQxFliHYVxqkvdQ8m3q7JKgwzywrteVdoKTt+tPSxeIGV+vaHvTStNIq cr/w== X-Forwarded-Encrypted: i=1; AJvYcCXlDY2fV2WbKWBn7G2ie1GzbsAd9HlZfyfYC7oFNmMBKXj8PjeGbRkC6VHen3rpEHPjTPdS6U+yfA==@kvack.org X-Gm-Message-State: AOJu0Ywjg4Mq/XDrCs6dDmHgPkQfAhiAeCzo4EaRBPjxW+xY2qjWWvnr ugKVveYzo4qzGYPCtVExHe3Jez1dBJawp7JXVMldtC7CBHlK4HchfCE8hNYB2Pw= X-Google-Smtp-Source: AGHT+IHDimCQOVgf3cz6B2MDVaQCn9zqN59aHOrw12G3nQFTvSfb8MPteRYBnMY91dT3qMMvMiS9YQ== X-Received: by 2002:a17:902:d482:b0:20c:8f78:67be with SMTP id d9443c01a7336-21183e11a8cmr198773145ad.40.1731358489062; Mon, 11 Nov 2024 12:54:49 -0800 (PST) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e9a5fd1534sm9059974a91.42.2024.11.11.12.54.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Nov 2024 12:54:48 -0800 (PST) From: Deepak Gupta Date: Mon, 11 Nov 2024 12:54:05 -0800 Subject: [PATCH v8 20/29] riscv/kernel: update __show_regs to print shadow stack register MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20241111-v5_user_cfi_series-v8-20-dce14aa30207@rivosinc.com> References: <20241111-v5_user_cfi_series-v8-0-dce14aa30207@rivosinc.com> In-Reply-To: <20241111-v5_user_cfi_series-v8-0-dce14aa30207@rivosinc.com> To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Christian Brauner , Peter Zijlstra , Oleg Nesterov , Eric Biederman , Kees Cook , Jonathan Corbet , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, alistair.francis@wdc.com, richard.henderson@linaro.org, jim.shu@sifive.com, andybnac@gmail.com, kito.cheng@sifive.com, charlie@rivosinc.com, atishp@rivosinc.com, evan@rivosinc.com, cleger@rivosinc.com, alexghiti@rivosinc.com, samitolvanen@google.com, broonie@kernel.org, rick.p.edgecombe@intel.com, Deepak Gupta X-Mailer: b4 0.14.0 X-Stat-Signature: o9wsx3ghrth5q5dzrpofz34egobbx6xr X-Rspam-User: X-Rspamd-Queue-Id: 5376818000B X-Rspamd-Server: rspam02 X-HE-Tag: 1731358461-196539 X-HE-Meta: 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 llRGGLkK 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 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: List-Subscribe: List-Unsubscribe: Updating __show_regs to print captured shadow stack pointer as well. On tasks where shadow stack is disabled, it'll simply print 0. Signed-off-by: Deepak Gupta Reviewed-by: Alexandre Ghiti --- arch/riscv/kernel/process.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index 226054db6c42..1aeb5c08a3c6 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -90,8 +90,8 @@ void __show_regs(struct pt_regs *regs) regs->s8, regs->s9, regs->s10); pr_cont(" s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n", regs->s11, regs->t3, regs->t4); - pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT "\n", - regs->t5, regs->t6); + pr_cont(" t5 : " REG_FMT " t6 : " REG_FMT " ssp : " REG_FMT "\n", + regs->t5, regs->t6, get_active_shstk(current)); pr_cont("status: " REG_FMT " badaddr: " REG_FMT " cause: " REG_FMT "\n", regs->status, regs->badaddr, regs->cause); -- 2.45.0