From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f46.google.com (mail-io1-f46.google.com [209.85.166.46]) by mx.groups.io with SMTP id smtpd.web09.1379.1572420997838707034 for ; Wed, 30 Oct 2019 00:36:37 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20161025 header.b=hdsojBYg; spf=pass (domain: gmail.com, ip: 209.85.166.46, mailfrom: prabhakar.pkin@gmail.com) Received: by mail-io1-f46.google.com with SMTP id p6so1376031iod.7 for ; Wed, 30 Oct 2019 00:36:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=uzcaXbsj4/0lFXW/ESm2MLZljOrCmjAt48dJpFPoOGM=; b=hdsojBYgRPtLZsC6VJ2olyrfv8I79oUQrGfsKQ13FZph5NspI8SFoPV+dEPH+fkSvM VWz0hkm5aWdE2Z86SdkbszR7wSJptFrxXy44AJZyetXOWYdSFr4jOf1LgRY+o4iXkQ4/ +g9f05b8RCwrzJaW31YYQa/9Cq52r+boxWdS8vpDJbrcfLztTxJoBzRQkoRBvUgPhdFM xs0lujZK47euMb038YTYlhgZOYbQbacTnvSG4+vH34tCx5fyLwPlzENc3+ZUtuHc5tPp z+ar98x0cPEtSCYeS2KP1FB4EJlMyF8VkmAjPjprTCje6iJ54pjNd6CU1fgOn0svRiuw bQAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=uzcaXbsj4/0lFXW/ESm2MLZljOrCmjAt48dJpFPoOGM=; b=pgRyULsxu6xHrMG2NeQ68BWbFU419Zbwa2lt5rRq25j+RaC9H4FU/eGabJKVISUo2A 03bFdfWwyRO5MLnXfIIqsiXrAYyIfXeuuKM2qJVAM/EjIMlo0GLui/O2CDaFLTqsCuOs +qTvLU6P4f4bqcVp11X7IQmqreBsygXa7+hiK5plwThYCSQbhs2MJ5JzOMx6OL4L0CIi Z30xYHelvmEitQc6XQIMLNoDy/tMeX2n3wBtzij9xbxhtQrUGZctnZ8w9LXLDaGa6L4b 0Ul+ntAcgZyEdYx2gYP2DGkVVQTpwOv5ABtkvGbiVIPRkAWU1fEzrsc161vfMc9KpW+X e3sg== X-Gm-Message-State: APjAAAWpxFr4qv++OoVaPXvemYpOx/cK/RMSS7RHF7UFr4Infdp+Luck PEMTqB73BwCjuCI9pApFO/S7XRXmsOg2lSC3lhs= X-Google-Smtp-Source: APXvYqy2kqnzsK1nTcJhPqMjo3B+iCZ73YcwrO3UEEmU2jQilq8CZmarky1v2gDk54d+PsMuLbY5NwEWpFFuJP9mzwM= X-Received: by 2002:a5d:888d:: with SMTP id d13mr3780821ioo.119.1572420997347; Wed, 30 Oct 2019 00:36:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: "Prabhakar Kushwaha" Date: Wed, 30 Oct 2019 13:06:26 +0530 Message-ID: Subject: Re: [edk2-devel] How /sys/firmware/fdt getting created To: Ard Biesheuvel Cc: edk2-devel-groups-io Content-Type: text/plain; charset="UTF-8" On Wed, Oct 30, 2019 at 12:43 PM Ard Biesheuvel wrote: > > On Tue, 29 Oct 2019 at 18:17, Prabhakar Kushwaha > wrote: > > > > Hi All, > > > > I am working on Ubuntu-18.04 with UEFI on ARM64(64 bit) platform. The > > UEFI used is having ACPI tables. > > > > I am trying to understand where and how /sys/firmware/fdt is getting > > created. is it created by UEFI or grub and passed to Linux? > > > > Neither. It is created by Linux itself. > > > Thanks Ard, Can you please point me the code where it is getting created. I want to add below in /sys/firmware/fdt. #size-cells = <0x02>; #address-cells = <0x02>; --prabhakar (pk)