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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAC43C433FE for ; Mon, 15 Nov 2021 19:02:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2C78636B6 for ; Mon, 15 Nov 2021 19:02:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232096AbhKOTE4 (ORCPT ); Mon, 15 Nov 2021 14:04:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:52664 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238298AbhKORkW (ORCPT ); Mon, 15 Nov 2021 12:40:22 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 93E96632EC; Mon, 15 Nov 2021 17:26:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1636997215; bh=aV4N1om+H0mX+iTl7nEnTZZqsL0GK8VHw3mR0y/l8a0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CafpK46lMb+9Hw6XQciExxIN3S2xYkv6o6vT+G5DH4u0wFzfBXsmciS0fbYL5cTn4 MSi2IfLFjaCFSSvu5GQw9EyBk9GYUPEEPw8vYQrbsOxW/dGTlrHO+WJ3zBoqDbkXOZ 0AbuL4Pt5b8o7/uaPRx+zHOE5vgX1Q27OIV9jtgs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lorenz Bauer , Alexei Starovoitov , Sasha Levin Subject: [PATCH 5.10 066/575] bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT Date: Mon, 15 Nov 2021 17:56:31 +0100 Message-Id: <20211115165345.921926518@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165343.579890274@linuxfoundation.org> References: <20211115165343.579890274@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lorenz Bauer [ Upstream commit 5d63ae908242f028bd10860cba98450d11c079b8 ] Expose the maximum amount of useable memory from the arm64 JIT. Signed-off-by: Lorenz Bauer Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20211014142554.53120-3-lmb@cloudflare.com Signed-off-by: Sasha Levin --- 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 345066b8e9fc8..064577ff9ff59 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -1134,6 +1134,11 @@ out: 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, -- 2.33.0