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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBF1DC4332F for ; Fri, 24 Sep 2021 09:56:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D55F660E05 for ; Fri, 24 Sep 2021 09:56:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245493AbhIXJ6A (ORCPT ); Fri, 24 Sep 2021 05:58:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245381AbhIXJ5w (ORCPT ); Fri, 24 Sep 2021 05:57:52 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 983E1C06175F for ; Fri, 24 Sep 2021 02:56:19 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id g16so25672702wrb.3 for ; Fri, 24 Sep 2021 02:56:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=RRur22NBusGD90t4t5587ekzz3x5I1RHcVLT1FRWOPw=; b=ZD42DmzkPW2U+A4iJpC8iU2XyYMHKk9YKg9uFkDAbWvXW801p2Hu5cLrfTaUg4kAw2 2eQlDVG0jhv5r8Ceccp0DheyAO7BDxLhXFyhblIdL/rlTOph12MkI0OX9YB8TTHyGQ8A hFCiE7a6ev7YHx/N8MaLkClcCasu5gAUyu0bY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=RRur22NBusGD90t4t5587ekzz3x5I1RHcVLT1FRWOPw=; b=YItAfzq5pfsW4uUYvldk+kpO9usWCGrvxWa9cEwzmhxs6ETEw0GehLw37TMKTni9Yt /c0U35nxQYxC7LR8rBeJLlRNU5QERh25fyxwwxmK8hSEdNA8dw3r5EVFnL8bWLCRoWDE 7k3kLRvL70DWOjoJE6egZfGHnCd8bjInX/1sSypx5oDeuGspzgClvGWdOwrlJSAI5Y2m 5CuggzeoVyRlcax5/xCQ0GWowFRO+IumHYk2K3V2KfN6w7APHUnNLZyvP1BLap6wH3Rz KFFW08NB6kr2LySB79ruS2UtKgozXE1SF46mIFoXpWzYruP32/GHRu0wdu3OXK2Jn/9L 7Oxg== X-Gm-Message-State: AOAM532B92pchpNIB8LyXqcBI0xH6EBsBzX13q+pO9pMHIYgzA/6bLpG /ixNVnnJR1HH0d6EeMqHqLoVYg== X-Google-Smtp-Source: ABdhPJx7VqwMpBrGIroLZOsmZihp8ru4ncEtHJRlD9vTSP+bvxaBPO1HLlFCNTEK2gcCOmKarG7JZw== X-Received: by 2002:a1c:a713:: with SMTP id q19mr1109287wme.42.1632477378193; Fri, 24 Sep 2021 02:56:18 -0700 (PDT) Received: from antares.. (1.8.8.f.e.b.b.b.5.6.9.e.c.8.5.0.f.f.6.2.a.5.a.7.0.b.8.0.1.0.0.2.ip6.arpa. [2001:8b0:7a5a:26ff:58c:e965:bbbe:f881]) by smtp.gmail.com with ESMTPSA id v20sm7871106wra.73.2021.09.24.02.56.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Sep 2021 02:56:17 -0700 (PDT) From: Lorenz Bauer To: Daniel Borkmann , Alexei Starovoitov , Zi Shen Lim , Catalin Marinas , Will Deacon , Andrii Nakryiko Cc: kernel-team@cloudflare.com, Lorenz Bauer , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next 2/4] bpf: define bpf_jit_alloc_exec_limit for arm64 JIT Date: Fri, 24 Sep 2021 10:55:40 +0100 Message-Id: <20210924095542.33697-3-lmb@cloudflare.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210924095542.33697-1-lmb@cloudflare.com> References: <20210924095542.33697-1-lmb@cloudflare.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Expose the maximum amount of useable memory from the arm64 JIT. Signed-off-by: Lorenz Bauer --- arch/arm64/net/bpf_jit_comp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 41c23f474ea6..803e7773fa86 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -1136,6 +1136,11 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog) return prog; } +u64 bpf_jit_alloc_exec_limit(void) +{ + return BPF_JIT_REGION_SIZE; +} + void *bpf_jit_alloc_exec(unsigned long size) { return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START, -- 2.30.2 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 X-Spam-Level: X-Spam-Status: No, score=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70568C433F5 for ; Fri, 24 Sep 2021 09:58:03 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4412D610CF for ; Fri, 24 Sep 2021 09:58:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4412D610CF Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=cloudflare.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gsmjFlmILbn7aHu06mB9WAVKVL8H1+XCjqkB90b/yzA=; b=30Qc7R8AytIjO2 Xq4qMtKuLgLmFPla1KXALS2bw1smmsr9K1d6eT6mk1y9RfRyf32SCHTUFWKoLzGRumWIZoLYylUK6 gnylawYKZypMBsLYskzWbQ+DZHc1qtWgnIA+aiH+JTLic10i63ZCfEhVxvfFeg57ZzeOkTxD+Sk1s 5S67pxWgYfunfWmzbdNub/XaTQm3AkilQK1QiM72lyQbpjMWQ/iL04wKKRGlWUUrKMjYskC68TS57 PxRGzGDGsrAOTmGe4GM6ZVSDfIWaaBi4C1RjEtVT932vbZFFRmIx6qdZ7p0US4QB3jt8wMZR2nIA9 4oyBlqVieRPGcSV+i0KA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mThwl-00E0rW-PB; Fri, 24 Sep 2021 09:56:47 +0000 Received: from mail-wr1-x433.google.com ([2a00:1450:4864:20::433]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mThwJ-00E0mf-Cy for linux-arm-kernel@lists.infradead.org; Fri, 24 Sep 2021 09:56:20 +0000 Received: by mail-wr1-x433.google.com with SMTP id t18so25741299wrb.0 for ; Fri, 24 Sep 2021 02:56:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=RRur22NBusGD90t4t5587ekzz3x5I1RHcVLT1FRWOPw=; b=ZD42DmzkPW2U+A4iJpC8iU2XyYMHKk9YKg9uFkDAbWvXW801p2Hu5cLrfTaUg4kAw2 2eQlDVG0jhv5r8Ceccp0DheyAO7BDxLhXFyhblIdL/rlTOph12MkI0OX9YB8TTHyGQ8A hFCiE7a6ev7YHx/N8MaLkClcCasu5gAUyu0bY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=RRur22NBusGD90t4t5587ekzz3x5I1RHcVLT1FRWOPw=; b=7GTvOwO7jcdYpmDfFNeRjeCjWDq7qhitUUHAH3k0AYdG87GQSkjg/riUj1I4Bj3FzD gn/Abi/+Rdye45GmLXEj8Bv2tpyOf9/pnCCW/RtnQLfs5iUo9USjpht/3YCZ7EkT9V8S fiqXE5GC2toUU0epIshX3av3OSQbw83vskZF/BJcsBr234+EUkbCpwZDABxEgVIpb/gg p2I2ejsfIc5viejbJ2Led/4avVIsaNpVRtS29DLnNeNa8KRJGIcXXvny4tk5Sdw4da2G 5xs5bkW/EdLKDCS9P+5ho05QU31f5OhpUw/Z9TEPZsRGa4BmGsOrmLfzXldrqF6mJlIK ZPGw== X-Gm-Message-State: AOAM532fpk7ZxJUKVmUT/1dBLSQVqKcP6jUPVwUS1dfWL7yZTMogjblg tEGZ5vjFTCiuFs9QHts3BdGlvw== X-Google-Smtp-Source: ABdhPJx7VqwMpBrGIroLZOsmZihp8ru4ncEtHJRlD9vTSP+bvxaBPO1HLlFCNTEK2gcCOmKarG7JZw== X-Received: by 2002:a1c:a713:: with SMTP id q19mr1109287wme.42.1632477378193; Fri, 24 Sep 2021 02:56:18 -0700 (PDT) Received: from antares.. (1.8.8.f.e.b.b.b.5.6.9.e.c.8.5.0.f.f.6.2.a.5.a.7.0.b.8.0.1.0.0.2.ip6.arpa. [2001:8b0:7a5a:26ff:58c:e965:bbbe:f881]) by smtp.gmail.com with ESMTPSA id v20sm7871106wra.73.2021.09.24.02.56.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Sep 2021 02:56:17 -0700 (PDT) From: Lorenz Bauer To: Daniel Borkmann , Alexei Starovoitov , Zi Shen Lim , Catalin Marinas , Will Deacon , Andrii Nakryiko Cc: kernel-team@cloudflare.com, Lorenz Bauer , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next 2/4] bpf: define bpf_jit_alloc_exec_limit for arm64 JIT Date: Fri, 24 Sep 2021 10:55:40 +0100 Message-Id: <20210924095542.33697-3-lmb@cloudflare.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210924095542.33697-1-lmb@cloudflare.com> References: <20210924095542.33697-1-lmb@cloudflare.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210924_025619_455745_6C6C9EFD X-CRM114-Status: GOOD ( 10.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Expose the maximum amount of useable memory from the arm64 JIT. Signed-off-by: Lorenz Bauer --- arch/arm64/net/bpf_jit_comp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 41c23f474ea6..803e7773fa86 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -1136,6 +1136,11 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog) return prog; } +u64 bpf_jit_alloc_exec_limit(void) +{ + return BPF_JIT_REGION_SIZE; +} + void *bpf_jit_alloc_exec(unsigned long size) { return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START, -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel