Message ID | 20230323145924.4194-17-andy.chiu@sifive.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <kvm-owner@vger.kernel.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B627C6FD1C for <kvm@archiver.kernel.org>; Thu, 23 Mar 2023 15:02:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231672AbjCWPCe (ORCPT <rfc822;kvm@archiver.kernel.org>); Thu, 23 Mar 2023 11:02:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231514AbjCWPCc (ORCPT <rfc822;kvm@vger.kernel.org>); Thu, 23 Mar 2023 11:02:32 -0400 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1053298CA for <kvm@vger.kernel.org>; Thu, 23 Mar 2023 08:01:22 -0700 (PDT) Received: by mail-pl1-x636.google.com with SMTP id ja10so22561484plb.5 for <kvm@vger.kernel.org>; Thu, 23 Mar 2023 08:01:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1679583674; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=2/srIeqtOeL8WlVYBrDSAnb/WyWsrKaiEJtMn58iONk=; b=WVySlEfxqDWV/IQZE+oLOQ0wO+duX+c8vFyXLiyJTO/x6njrE+NXSvUp4U7SbhlmAa e3vIJwBitYU7bQFELWAorOZWaW5Ygi61aiL6LAKJx3TKW7xvpiA3+or3+K+TiDyz09hm g+QyZzE/7LB+9xXQk7NZunq8TuIPP2iKcHm2RiHeMiAEKP7LL1QIEYhsg45Yp77co4uP YcRTK1ZEsYUfMs4g9mAyToSQLHgadRVMtO62rVhtzPwtgp/9qYO++Wv1sAOUBPh9RODK uCM5Y26DzOX7s3YDNZloU38f2UWvbFmt9NrBayRYHsiMxHTG/fCCWPbiXW2fy2H3mD3P SXlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679583674; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=2/srIeqtOeL8WlVYBrDSAnb/WyWsrKaiEJtMn58iONk=; b=skSzLe4X5kyajzCHrNUu/+gmkTUQprLywdQ+qPxkOzwRQ/vdZJIJ6ghvVK/z0PRPTD o6Wmn8EYOgkWUtBjOP0jt+qNycSNP3/IeYmcSNCPQrDUmgxEZSyoa9iOZf0H4jOSm8R+ rGKCIz9bin1f6O00ubQ/MKcAlF2mwnZsRxixH7qgiMhTnhA983VXIrTZZD7xbp44emV4 +PXJruyFL7ZeF2Ck+Fu4wu8DY7ML1SqotHiyzTYfBMFhwguzyJNGKQfkT4Xh7hway3RV c1OPAak57MvIgy3h3xtrA78EYNFvCaIUVhoX7ogbSBb9zxPrC38U+qqMmodOZrhsRtzZ 7LNg== X-Gm-Message-State: AO0yUKUxLZkpqmA+8GcCh1CYwMVBm8P3eunxieoIZWbIX4pESUIsjse7 0ldVYHSXAUksDxDLFy6VAenxtQ== X-Google-Smtp-Source: AK7set/L3cVGLRza2ds3tB3eAlc8YjsgRg8DqSZzrpSTVdPBTBMhw0vBkaTe8IhXbUtRRWsR0LQz6Q== X-Received: by 2002:a17:902:ecc2:b0:1a1:e01e:7279 with SMTP id a2-20020a170902ecc200b001a1e01e7279mr9171143plh.4.1679583673757; Thu, 23 Mar 2023 08:01:13 -0700 (PDT) Received: from hsinchu25.internal.sifive.com (59-124-168-89.hinet-ip.hinet.net. [59.124.168.89]) by smtp.gmail.com with ESMTPSA id d9-20020a170902854900b0019f53e0f136sm12503965plo.232.2023.03.23.08.01.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Mar 2023 08:01:13 -0700 (PDT) From: Andy Chiu <andy.chiu@sifive.com> To: linux-riscv@lists.infradead.org, palmer@dabbelt.com, anup@brainfault.org, atishp@atishpatra.org, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org Cc: vineetg@rivosinc.com, greentime.hu@sifive.com, guoren@linux.alibaba.com, ShihPo Hung <shihpo.hung@sifive.com>, Vincent Chen <vincent.chen@sifive.com>, Andy Chiu <andy.chiu@sifive.com>, Paul Walmsley <paul.walmsley@sifive.com>, Albert Ou <aou@eecs.berkeley.edu>, Conor Dooley <conor.dooley@microchip.com>, Alexandre Ghiti <alexandre.ghiti@canonical.com>, Masahiro Yamada <masahiroy@kernel.org>, Guo Ren <guoren@kernel.org> Subject: [PATCH -next v16 16/20] riscv: prevent stack corruption by reserving task_pt_regs(p) early Date: Thu, 23 Mar 2023 14:59:20 +0000 Message-Id: <20230323145924.4194-17-andy.chiu@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230323145924.4194-1-andy.chiu@sifive.com> References: <20230323145924.4194-1-andy.chiu@sifive.com> Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org |
Series |
riscv: Add vector ISA support
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expand
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diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S index e16bb2185d55..11c3b94c4534 100644 --- a/arch/riscv/kernel/head.S +++ b/arch/riscv/kernel/head.S @@ -301,6 +301,7 @@ clear_bss_done: la tp, init_task la sp, init_thread_union + THREAD_SIZE XIP_FIXUP_OFFSET sp + addi sp, sp, -PT_SIZE_ON_STACK #ifdef CONFIG_BUILTIN_DTB la a0, __dtb_start XIP_FIXUP_OFFSET a0 @@ -318,6 +319,7 @@ clear_bss_done: /* Restore C environment */ la tp, init_task la sp, init_thread_union + THREAD_SIZE + addi sp, sp, -PT_SIZE_ON_STACK #ifdef CONFIG_KASAN call kasan_early_init