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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 71241C05027 for ; Fri, 20 Jan 2023 06:58:38 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIlLH-0007O0-Uz; Fri, 20 Jan 2023 01:57:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIlLF-0007NA-Sn for qemu-devel@nongnu.org; Fri, 20 Jan 2023 01:57:37 -0500 Received: from mail-wr1-x434.google.com ([2a00:1450:4864:20::434]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pIlLE-0004Li-3B for qemu-devel@nongnu.org; Fri, 20 Jan 2023 01:57:37 -0500 Received: by mail-wr1-x434.google.com with SMTP id b5so4014970wrn.0 for ; Thu, 19 Jan 2023 22:57:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=OIzO5WcZMLxcuwhPaKdv9Z6qpKNuH1rIHoNvo/1Rw8Y=; b=Bemudum++GuidblNhn62gr3MMYvB+9DI7jgUtVOJXo4ESm0My7eZGqUc+pCjY5AaX9 Q2isJ/sfH3Dr5cN7BtLWFO3WH+NNovRYZPcVbBbr5Mr3EpRXa7KpOdEkspjjPVcNLj83 fcwRVyjT9exPRBifdFcEv3VyUJfWa7zAQUGcvddBEYyH/3AEheT/RlgCQUs57F0wQAlu m2j4i5y8tMAb8DVC5YzL7G7XIi0mW2iIyiv7sgV6VR085IDBE1/kWonuAZrXTpBocqjt 2Vi1GfwoROMeWM+8SPqbaimqwz4JpA4L1YTZGf9jgZAPoUQHu7sZamVFoCAyd5GTzNvV IE3g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OIzO5WcZMLxcuwhPaKdv9Z6qpKNuH1rIHoNvo/1Rw8Y=; b=OYDxhnyTUU6iphmakZKXX/V7a1G23Y3lgbKOaeE15AydzEdNnTDKVrzXIodybSoR1A f8xX07O+lsGuvzMDd49zeG0n/BrkBSZ80sMXNt08LAtSNKrsZxKgO73Olz6UxdnbG03K zLWe3CbIzbVnuJfEsDhU8pNRAueG1qhlHvj0lZOtAvv0Z6ZBQbUOfYMa1v4XYZIoTzeo KTqhoD6vgeMlVEUz415aeQApyoZi8GTLuw6RSehxhsHsnKbgqlp91MO9wYgZ44O9dN/F kRR6cIOzkG5ddlW3gBzRo8nHyv/nbYrZubN44PW5y1/0msyWmX66m5qIQM8xjbw7ufrh clpQ== X-Gm-Message-State: AFqh2krrKl7FS+Isf+9XS+oiWVzhkQpuslhTdubQIIgGDlZ0yYSznwqw Ke+VevqP0d9AJzsUpsDJBkQWQA== X-Google-Smtp-Source: AMrXdXvBpqWuzi43AdUbNKBquAlc0hojqTh8xvZCf11g/nRtJbNAOJs4gHKcLWXHA57gySY7pCL7AQ== X-Received: by 2002:a05:6000:a03:b0:2b9:9e7b:be6b with SMTP id co3-20020a0560000a0300b002b99e7bbe6bmr12645380wrb.45.1674197853611; Thu, 19 Jan 2023 22:57:33 -0800 (PST) Received: from [192.168.30.216] ([81.0.6.76]) by smtp.gmail.com with ESMTPSA id m15-20020adffe4f000000b002bdd155ca4dsm21070866wrs.48.2023.01.19.22.57.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Jan 2023 22:57:33 -0800 (PST) Message-ID: Date: Fri, 20 Jan 2023 07:57:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [PATCH] mac_nvram: Add block backend to persist NVRAM contents To: BALATON Zoltan , qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Mark Cave-Ayland References: <20230119222845.27209745706@zero.eik.bme.hu> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= In-Reply-To: <20230119222845.27209745706@zero.eik.bme.hu> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=philmd@linaro.org; helo=mail-wr1-x434.google.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.094, RCVD_IN_DNSWL_NONE=-0.0001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 19/1/23 23:28, BALATON Zoltan wrote: > Add a way to set a backing store for the mac_nvram similar to what > spapr_nvram or mac_via PRAM already does to allow to save its contents > between runs. Use -drive file=nvram.img,format=raw,if=mtd to specify > backing file where nvram.img must be MACIO_NVRAM_SIZE which is 8192 > bytes. It is only wired for mac_oldworld for now but could be used by > mac_newworld in the future too. > > Signed-off-by: BALATON Zoltan > --- > hw/nvram/mac_nvram.c | 28 ++++++++++++++++++++++++++++ > hw/ppc/mac_oldworld.c | 8 +++++++- > include/hw/nvram/mac_nvram.h | 1 + > 3 files changed, 36 insertions(+), 1 deletion(-) Reviewed-by: Philippe Mathieu-Daudé