From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f200.google.com (mail-wr0-f200.google.com [209.85.128.200]) by kanga.kvack.org (Postfix) with ESMTP id 4DD646B03B4 for ; Wed, 21 Jun 2017 04:39:36 -0400 (EDT) Received: by mail-wr0-f200.google.com with SMTP id v60so28375359wrc.7 for ; Wed, 21 Jun 2017 01:39:36 -0700 (PDT) Received: from mail.skyhub.de (mail.skyhub.de. [5.9.137.197]) by mx.google.com with ESMTP id q22si16542752wrb.377.2017.06.21.01.39.34 for ; Wed, 21 Jun 2017 01:39:35 -0700 (PDT) Date: Wed, 21 Jun 2017 10:39:18 +0200 From: Borislav Petkov Subject: Re: [PATCH v7 20/36] x86, mpparse: Use memremap to map the mpf and mpc data Message-ID: <20170621083918.oa2w5jsxs3si4oln@pd.tnic> References: <20170616184947.18967.84890.stgit@tlendack-t1.amdoffice.net> <20170616185338.18967.80659.stgit@tlendack-t1.amdoffice.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170616185338.18967.80659.stgit@tlendack-t1.amdoffice.net> Sender: owner-linux-mm@kvack.org List-ID: To: Tom Lendacky Cc: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, xen-devel@lists.xen.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Brijesh Singh , Toshimitsu Kani , Radim =?utf-8?B?S3LEjW3DocWZ?= , Matt Fleming , Alexander Potapenko , "H. Peter Anvin" , Larry Woodman , Jonathan Corbet , Joerg Roedel , "Michael S. Tsirkin" , Ingo Molnar , Andrey Ryabinin , Dave Young , Rik van Riel , Arnd Bergmann , Konrad Rzeszutek Wilk , Andy Lutomirski , Boris Ostrovsky , Dmitry Vyukov , Juergen Gross , Thomas Gleixner , Paolo Bonzini On Fri, Jun 16, 2017 at 01:53:38PM -0500, Tom Lendacky wrote: > The SMP MP-table is built by UEFI and placed in memory in a decrypted > state. These tables are accessed using a mix of early_memremap(), > early_memunmap(), phys_to_virt() and virt_to_phys(). Change all accesses > to use early_memremap()/early_memunmap(). This allows for proper setting > of the encryption mask so that the data can be successfully accessed when > SME is active. > > Signed-off-by: Tom Lendacky > --- > arch/x86/kernel/mpparse.c | 98 ++++++++++++++++++++++++++++++++------------- > 1 file changed, 70 insertions(+), 28 deletions(-) Reviewed-by: Borislav Petkov Please put the conversion to pr_fmt() on the TODO list for later. Thanks. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org