Message ID | 20200918201436.2932360-27-samitolvanen@google.com |
---|---|
State | New |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=REd95VnF; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BtQ7t0cw4z9sTt for <incoming@patchwork.ozlabs.org>; Sat, 19 Sep 2020 06:15:54 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726192AbgIRUPo (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Fri, 18 Sep 2020 16:15:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726683AbgIRUPm (ORCPT <rfc822;linux-pci@vger.kernel.org>); Fri, 18 Sep 2020 16:15:42 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39879C0613D3 for <linux-pci@vger.kernel.org>; Fri, 18 Sep 2020 13:15:42 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id p13so6769014ybe.4 for <linux-pci@vger.kernel.org>; Fri, 18 Sep 2020 13:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=oXJMXy02LqTQDpBkn8PPtjYwJPq4evUojZhZLMc3uvo=; b=REd95VnFXwmD3ND7Lapf6wTEKHlyfaSDlXa6A5g8OMe6rD7mXFuEioeTzTVuP+wKYy krseyNRuMtJa9ctfWr2TjaEjNcbStkBCBOxYrTttidotv9Qbdv5f70T8rfirifUlhiGO fbpwKXewIVSjSWcELClY8rHyvPgkF2XdC/QZF4KVfiVKi0xCd18r7fnei+hqOeW0nZel JhxqIwpbgtSIJrJ5e9QQl5CT7x9s7Yh2DeXazsVf3ebafU4M8/COaXTHkTmNbs2X65vv uvYLZii0pQgCywSqGr9bhM6Jz3cwSDm+sYfUU2OyMAh4+XaJbe4V1f+DGOyRxBJY+8Ct N4eQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=oXJMXy02LqTQDpBkn8PPtjYwJPq4evUojZhZLMc3uvo=; b=CHWP+WYxmhTvGlP1vvSQHMdlg1uDir5fIVVP0XlV4BJSk3VMohzniyRi/8OMfhnHSa ufxbfhaMSzjAOFC9lNEQ0TkK2lGdZUS1gR4OhDF3EzrJp+gwT4xAUnTgj5yns3+SoTqX xkRw77VjzcMQe/FyyM8pgvX1YcjmW9DBU0E2Qfv25dG2zFhVQHTGQnMN/OJZKgZWpBsY c/yiaV/NBr1Bz0URNdch9rV7kx0KGrSmKR8zbmMLXamk4tl3IK+nu7bWO+n0vboamSaP NowF6JOF+I2Jk+LHmL3QvE1KxNne+LCu3oHNVGf0mL6Zp8X2XZSMfMaoar0t3bIKkoTL /Fxg== X-Gm-Message-State: AOAM531ORle0IaoRINvEJmGRVor+B71wjmPPyiVXGBlgoM5oduCYmeQ9 e8k994poen99m2PFS9ULtk879+hjT64XkFkHqQY= X-Google-Smtp-Source: ABdhPJxMyDngZuNnNx1wL9/fMd7ntfJVtVGTW6/hjVnBGEbXwyy4OggBNEJrH2U3qB1vnImsc26NsteebpxVgOTzfOI= Sender: "samitolvanen via sendgmr" <samitolvanen@samitolvanen1.mtv.corp.google.com> X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:a25:14c4:: with SMTP id 187mr54928163ybu.449.1600460141424; Fri, 18 Sep 2020 13:15:41 -0700 (PDT) Date: Fri, 18 Sep 2020 13:14:32 -0700 In-Reply-To: <20200918201436.2932360-1-samitolvanen@google.com> Message-Id: <20200918201436.2932360-27-samitolvanen@google.com> Mime-Version: 1.0 References: <20200918201436.2932360-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v3 26/30] KVM: arm64: disable LTO for the nVHE directory From: Sami Tolvanen <samitolvanen@google.com> To: Masahiro Yamada <masahiroy@kernel.org>, Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org>, Steven Rostedt <rostedt@goodmis.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Paul E. McKenney" <paulmck@kernel.org>, Kees Cook <keescook@chromium.org>, Nick Desaulniers <ndesaulniers@google.com>, clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, Sami Tolvanen <samitolvanen@google.com> Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: <linux-pci.vger.kernel.org> X-Mailing-List: linux-pci@vger.kernel.org |
Series |
Add support for Clang LTO
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expand
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diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index aef76487edc2..c903c8f31280 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -45,9 +45,9 @@ quiet_cmd_hypcopy = HYPCOPY $@ --rename-section=.text=.hyp.text \ $< $@ -# Remove ftrace and Shadow Call Stack CFLAGS. +# Remove ftrace, LTO, and Shadow Call Stack CFLAGS. # This is equivalent to the 'notrace' and '__noscs' annotations. -KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) +KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE) $(CC_FLAGS_LTO) $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) # KVM nVHE code is run at a different exception code with a different map, so # compiler instrumentation that inserts callbacks or checks into the code may