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[23.128.96.18]) by mx.google.com with ESMTP id s26si5731439ejv.367.2020.05.11.08.31.55; Mon, 11 May 2020 08:32:19 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730228AbgEKP3w (ORCPT + 99 others); Mon, 11 May 2020 11:29:52 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:35461 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726934AbgEKP3t (ORCPT ); Mon, 11 May 2020 11:29:49 -0400 Received: from mail-qk1-f178.google.com ([209.85.222.178]) by mrelayeu.kundenserver.de (mreue010 [212.227.15.129]) with ESMTPSA (Nemesis) id 1N9MYu-1j4W2J3Bn2-015GDz for ; Mon, 11 May 2020 17:29:47 +0200 Received: by mail-qk1-f178.google.com with SMTP id b188so10119108qkd.9 for ; Mon, 11 May 2020 08:29:47 -0700 (PDT) X-Gm-Message-State: AGi0PuYWVo022InwBklR4erVADxzq0IiImvaDS14HZ7iTYw2Y+Tmbl5u Uv+sLsZPcFulL2bLkhjjX/PVocqnnKXM39FpH9s= X-Received: by 2002:a37:4e08:: with SMTP id c8mr16010333qkb.286.1589210986640; Mon, 11 May 2020 08:29:46 -0700 (PDT) MIME-Version: 1.0 References: <20200408035118.GA1451@andestech.com> <20200414151748.GA5624@afzalpc> <20200415135407.GA6553@afzalpc> <20200503145017.GA5074@afzalpc> <20200504091018.GA24897@afzalpc> <20200511142113.GA31707@afzalpc> In-Reply-To: <20200511142113.GA31707@afzalpc> From: Arnd Bergmann Date: Mon, 11 May 2020 17:29:29 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: ARM: static kernel in vmalloc space (was Re: [PATCH 0/3] Highmem support for 32-bit RISC-V) To: afzal mohammed Cc: Russell King , Linux ARM , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset="UTF-8" X-Provags-ID: V03:K1:r4zcMHCTCI4e1WcOWKSfX0GQqAfiHZSjBjZkV89H3zSVO+tjoBz 4fGx3dWzOBmkjU6OoAqJc++71zy9WpabMtPCVDonh0Bvyuy8WAe9TRmh/mNJcWHjeGYSw2O GTJczLkN410tPdhk6AsJKrOTLSJYIC7QHkqyitvFB21qxumo4/zK0EQcVQs/gdJYVA0HUR2 YxY8Xplx/Qpgsvo5PjkhQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:kwwigW7yKJQ=:P3WjjYxQ4beOwZm3XJN4aX mmqm7XsJfBuXFt9neLIE4CcVW2U5uaVKVi7OQGn4yfRHC/XLMec5Rj/pEeURIz0lSDss/RtyD Do9Gy42hBnkJS2cWEjIVOVie2mkoTzURSVUDUzV82poQx7NhFnE5P2sZZJY/MijKHj4NPoAAY hWbTO3EaOaldMpyPGjDx9Dlwz2xtHQDUKFfFzsvGLQylSNHlUHQOyJ27YrGbMOyukuzzfgUvg F14XVpTJ1Y/6m8s941Dd/6Q4XOHsHux2QF/G3irnYEK3u51VOx95sX9ngld2PU806uqNZv8Bf RZxC66bDBlMdQ3yFU+E/cgxslHrJjupHldhHTQhwXpQDT3E2XaR824mzs3qgU7wJbQO84NrmK O59rUkVS65ZmoiugTVw8bfXlYA7pFfLWQzysMfYAsjcuzd8Tzue+jZJK10cr7LBhPDYJxf2WG k/NwKnTh4XjozkaxAqarxZEMLcKF588ohb17RNuNtk5stdTp90JVNeGhQcgn1RKoqxK6wFiDA kZ05MFZOwg2GpOyeOkDR0Ol/zvh4Jhk5cgW9mWkBDEm9j0C78a2/AU/k7eLbA5Gl59ubWYXyv yw3Bo5qKrHynaiwULxLCqJgTps4WwM8nr2qD+ItQmBsh7FPeKmYRLBcWoNtSdXNuKjJOU/PLq oSLmJIiANVmsbI5Pi+xtlBNK+2mZY0VZ0KGopsP0E2EkcQCguafH3Wbh2o7r9+CKlBTepmLz5 mtwiA7Zy08r6b2B4d43L+M52/NzeHArpoVDL0AK+PaaEMG05To1dSr82dczWlknXqi71L1omh rp+c1gFaz9pTcwYhiI+6+8rqHbuyiC0H2J0tsY+cNyhwBpA040= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 11, 2020 at 4:21 PM afzal mohammed wrote: > > Hi, > > Kernel now boots to prompt w/ static kernel mapping moved to vmalloc > space. > > Changes currently done have a couple of platform specific things, this > has to be modified to make it multiplatform friendly (also to be taken > care is ARM_PATCH_PHYS_VIRT case). Nice! > Module address space has to be taken care as well. What do you currently do with the module address space? I suppose the easiest way is to just always put modules into vmalloc space, as we already do with CONFIG_ARM_MODULE_PLTS when the special area gets full, but that could be optimized once the rest works. Arnd