From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id 4F49F83292 for ; Wed, 14 Jun 2017 12:25:52 -0400 (EDT) Received: by mail-wr0-f198.google.com with SMTP id g46so1562199wrd.3 for ; Wed, 14 Jun 2017 09:25:52 -0700 (PDT) Received: from mail.skyhub.de (mail.skyhub.de. [5.9.137.197]) by mx.google.com with ESMTP id i194si394127wmf.128.2017.06.14.09.25.51 for ; Wed, 14 Jun 2017 09:25:51 -0700 (PDT) Date: Wed, 14 Jun 2017 18:25:48 +0200 From: Borislav Petkov Subject: Re: [PATCH v6 22/34] x86/mm: Add support for changing the memory encryption attribute Message-ID: <20170614162548.crwm44epddyrtgm6@pd.tnic> References: <20170607191309.28645.15241.stgit@tlendack-t1.amdoffice.net> <20170607191659.28645.1669.stgit@tlendack-t1.amdoffice.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170607191659.28645.1669.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, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Rik van Riel , Radim =?utf-8?B?S3LEjW3DocWZ?= , Toshimitsu Kani , Arnd Bergmann , Jonathan Corbet , Matt Fleming , "Michael S. Tsirkin" , Joerg Roedel , Konrad Rzeszutek Wilk , Paolo Bonzini , Larry Woodman , Brijesh Singh , Ingo Molnar , Andy Lutomirski , "H. Peter Anvin" , Andrey Ryabinin , Alexander Potapenko , Dave Young , Thomas Gleixner , Dmitry Vyukov On Wed, Jun 07, 2017 at 02:17:00PM -0500, Tom Lendacky wrote: > Add support for changing the memory encryption attribute for one or more > memory pages. This will be useful when we have to change the AP trampoline > area to not be encrypted. Or when we need to change the SWIOTLB area to > not be encrypted in support of devices that can't support the encryption > mask range. > > Signed-off-by: Tom Lendacky > --- > arch/x86/include/asm/set_memory.h | 3 ++ > arch/x86/mm/pageattr.c | 62 +++++++++++++++++++++++++++++++++++++ > 2 files changed, 65 insertions(+) Patches 21-22: Reviewed-by: Borislav Petkov -- 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