From nobody Mon Feb 9 18:20:00 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=zx2c4.com ARC-Seal: i=1; a=rsa-sha256; t=1665522482; cv=none; d=zohomail.com; s=zohoarc; b=KBnG7fcp36OOb/HJFLerlxBwu4hMEsl5rypugQW7H8oM7KHuuLOrppLh7oL3Qufk9IsXu8RCq0LzlUj2QOEkjgko6z3XzqA6q+Ckq4aaDjg+CdEl6e17gj4c0JyF17lTaTb5NxlrpUfvabmwun7h+7m/clPKjHqr8E7pddC57tQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1665522482; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=1EkhBRNs3ukPCBFv1j1L2drncesLGhbPVoE8IvVGFYU=; b=NUu/yNSRDJ0nHCsqpxaT4Bg5mrE4lC2579j7TbC3/5O7hdAidIuzOYnU92bdiFNz5KT/5t2ENpDMCQtskhgZBuNHlRy+uLDjG7olGE5/o1SSwqQ/x5LgyS8hUmyaZwN0peF3X19+ZkzYIPqAtmyWptdJf5Fbi6SliYVXFMFmlLY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1665522482805750.3367091205185; Tue, 11 Oct 2022 14:08:02 -0700 (PDT) Received: from localhost ([::1]:58408 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oiMTp-0004OQ-Lu for importer@patchew.org; Tue, 11 Oct 2022 17:08:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43120) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oiM9o-0004gg-DE for qemu-devel@nongnu.org; Tue, 11 Oct 2022 16:47:23 -0400 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]:34412) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oiM9m-0001RP-UF for qemu-devel@nongnu.org; Tue, 11 Oct 2022 16:47:20 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 665DEB811DC; Tue, 11 Oct 2022 20:47:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92CB0C433D6; Tue, 11 Oct 2022 20:47:15 +0000 (UTC) Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 0ebbc356 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Tue, 11 Oct 2022 20:47:14 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="K5j5gYAq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1665521234; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1EkhBRNs3ukPCBFv1j1L2drncesLGhbPVoE8IvVGFYU=; b=K5j5gYAqLPT69sHMNpGPGDwxAAgtSKcyA+82lehoeynlHUSASabkuK7thhe2hW/yZ/lEiK EQNvi8p51Wuk8uP6QRZuWZ5fKXBq1g7ZKl3b8JyGd/9WHsbdC6+Ow4ohCdn+PPU4LHKAEq awSg7BDY2te4fV2xP4x0eKJu3uU5QBw= From: "Jason A. Donenfeld" To: peter.maydell@linaro.org, pbonzini@redhat.com, qemu-devel@nongnu.org Cc: "Jason A. Donenfeld" , Yoshinori Sato Subject: [PATCH v2 5/8] rx: re-randomize rng-seed on reboot Date: Tue, 11 Oct 2022 14:46:42 -0600 Message-Id: <20221011204645.1160916-6-Jason@zx2c4.com> In-Reply-To: <20221011204645.1160916-1-Jason@zx2c4.com> References: <20221011204645.1160916-1-Jason@zx2c4.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2604:1380:4601:e00::1; envelope-from=SRS0=aME8=2M=zx2c4.com=Jason@kernel.org; helo=ams.source.kernel.org X-Spam_score_int: -67 X-Spam_score: -6.8 X-Spam_bar: ------ X-Spam_report: (-6.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @zx2c4.com) X-ZM-MESSAGEID: 1665522485617100001 Content-Type: text/plain; charset="utf-8" When the system reboots, the rng-seed that the FDT has should be re-randomized, so that the new boot gets a new seed. Since the FDT is in the ROM region at this point, we add a hook right after the ROM has been added, so that we have a pointer to that copy of the FDT. Cc: Yoshinori Sato Signed-off-by: Jason A. Donenfeld Reviewed-by: Yoshinori Sato --- hw/rx/rx-gdbsim.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/rx/rx-gdbsim.c b/hw/rx/rx-gdbsim.c index 8ffe1b8035..198d048964 100644 --- a/hw/rx/rx-gdbsim.c +++ b/hw/rx/rx-gdbsim.c @@ -25,6 +25,7 @@ #include "hw/rx/rx62n.h" #include "sysemu/qtest.h" #include "sysemu/device_tree.h" +#include "sysemu/reset.h" #include "hw/boards.h" #include "qom/object.h" =20 @@ -148,6 +149,8 @@ static void rx_gdbsim_init(MachineState *machine) dtb_offset =3D ROUND_DOWN(machine->ram_size - dtb_size, 16); rom_add_blob_fixed("dtb", dtb, dtb_size, SDRAM_BASE + dtb_offset); + qemu_register_reset(qemu_fdt_randomize_seeds, + rom_ptr(SDRAM_BASE + dtb_offset, dtb_size)= ); /* Set dtb address to R1 */ RX_CPU(first_cpu)->env.regs[1] =3D SDRAM_BASE + dtb_offset; } --=20 2.37.3