From nobody Sat May 4 19:12:59 2024 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=1658233299; cv=none; d=zohomail.com; s=zohoarc; b=NrHza3XYQ+Z3UmfvXI/nOkQzpEM4AgHskMjhfQNGZeL0NY90oJYyPVJtu4oBdUyflj+dyAkhIJCz0BkyMab5q5ex46l0mPH8+5NLoNnkq3ZLdddODUc2yM8o5RJZ9iULf2HVTgjiY71wNLPUrwMqupFS5tg0uYnwNjcaoMOAxoA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1658233299; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=kUxOG0c6xR3PlPaWiKzu4kgsZ22wZWNFEtZFCWtbGvE=; b=NN4oiIa42QK0N4/+2YYOvjww+S9btFLRGht4uzKEYCZ+fWSfHFAygkqyQwGvhLYpLjv0702oNspEhY6dQtb9KYlOHs81lR+c116JPGQaD7eB1x3l2zvTbnB9KMgAXsOIzQb25/bB1Eq8VoMsJheX+aH37p1UKUGb8bJMaNUcFqg= 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 1658233299911521.2115884248765; Tue, 19 Jul 2022 05:21:39 -0700 (PDT) Received: from localhost ([::1]:35122 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oDmEM-0007fd-UX for importer@patchew.org; Tue, 19 Jul 2022 08:21:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53518) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDmDU-0006vl-8W for qemu-devel@nongnu.org; Tue, 19 Jul 2022 08:20:44 -0400 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]:52006) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDmDS-0003CK-Cc for qemu-devel@nongnu.org; Tue, 19 Jul 2022 08:20:43 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 6533A6158C; Tue, 19 Jul 2022 12:20:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D46D6C341CA; Tue, 19 Jul 2022 12:20:40 +0000 (UTC) Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id ead9de90 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); Tue, 19 Jul 2022 12:20:39 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="fbW0uINw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1658233239; 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; bh=kUxOG0c6xR3PlPaWiKzu4kgsZ22wZWNFEtZFCWtbGvE=; b=fbW0uINw6HLHzKdR3VDlktxp0Gn06LDzCicmiKmsLPVZ6KISRqcK+f7kkJ6JzWO+k9y8Gy raIrwjJm/otg3rHCkFOrhXrkQKAQ0bLukM5ZOArPlVGYlizqG+1L6VV5oyLbJ7DaNXYXvj UJEVuY83fWMJ/p8cyWJLLByT0lgUsQU= From: "Jason A. Donenfeld" To: qemu-devel@nongnu.org Cc: "Jason A. Donenfeld" , Yoshinori Sato Subject: [PATCH] hw/rx: pass random seed to fdt Date: Tue, 19 Jul 2022 14:20:33 +0200 Message-Id: <20220719122033.135902-1-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=2604:1380:4641:c500::1; envelope-from=SRS0=TnJG=XY=zx2c4.com=Jason@kernel.org; helo=dfw.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=0.249, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 1658233300683100001 Content-Type: text/plain; charset="utf-8" If the FDT contains /chosen/rng-seed, then the Linux RNG will use it to initialize early. Set this using the usual guest random number generation function. This FDT node is part of the DT specification. Cc: Yoshinori Sato Signed-off-by: Jason A. Donenfeld Reviewed-by: Yoshinori Sato --- hw/rx/rx-gdbsim.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/rx/rx-gdbsim.c b/hw/rx/rx-gdbsim.c index be147b4bd9..8ffe1b8035 100644 --- a/hw/rx/rx-gdbsim.c +++ b/hw/rx/rx-gdbsim.c @@ -19,6 +19,7 @@ #include "qemu/osdep.h" #include "qemu/cutils.h" #include "qemu/error-report.h" +#include "qemu/guest-random.h" #include "qapi/error.h" #include "hw/loader.h" #include "hw/rx/rx62n.h" @@ -83,6 +84,7 @@ static void rx_gdbsim_init(MachineState *machine) MemoryRegion *sysmem =3D get_system_memory(); const char *kernel_filename =3D machine->kernel_filename; const char *dtb_filename =3D machine->dtb; + uint8_t rng_seed[32]; =20 if (machine->ram_size < mc->default_ram_size) { char *sz =3D size_to_str(mc->default_ram_size); @@ -140,6 +142,8 @@ static void rx_gdbsim_init(MachineState *machine) error_report("Couldn't set /chosen/bootargs"); exit(1); } + qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); + qemu_fdt_setprop(dtb, "/chosen", "rng-seed", rng_seed, sizeof(= rng_seed)); /* DTB is located at the end of SDRAM space. */ dtb_offset =3D ROUND_DOWN(machine->ram_size - dtb_size, 16); rom_add_blob_fixed("dtb", dtb, dtb_size, --=20 2.35.1