From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f72.google.com (mail-lf0-f72.google.com [209.85.215.72]) by kanga.kvack.org (Postfix) with ESMTP id E8B186B0260 for ; Wed, 27 Apr 2016 08:42:11 -0400 (EDT) Received: by mail-lf0-f72.google.com with SMTP id j8so35601183lfd.0 for ; Wed, 27 Apr 2016 05:42:11 -0700 (PDT) Received: from atrey.karlin.mff.cuni.cz (atrey.karlin.mff.cuni.cz. [195.113.26.193]) by mx.google.com with ESMTP id u123si4756732wmu.54.2016.04.27.05.42.10 for ; Wed, 27 Apr 2016 05:42:10 -0700 (PDT) Date: Tue, 22 Mar 2016 14:01:50 +0100 From: Pavel Machek Subject: Re: [RFC PATCH v1 02/18] x86: Secure Memory Encryption (SME) build enablement Message-ID: <20160322130150.GB16528@xo-6d-61-c0.localdomain> References: <20160426225553.13567.19459.stgit@tlendack-t1.amdoffice.net> <20160426225614.13567.47487.stgit@tlendack-t1.amdoffice.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160426225614.13567.47487.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, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Radim =?utf-8?B?S3LEjW3DocWZ?= , Arnd Bergmann , Jonathan Corbet , Matt Fleming , Joerg Roedel , Konrad Rzeszutek Wilk , Paolo Bonzini , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Andrey Ryabinin , Alexander Potapenko , Thomas Gleixner , Dmitry Vyukov On Tue 2016-04-26 17:56:14, Tom Lendacky wrote: > Provide the Kconfig support to build the SME support in the kernel. Probably should go last in the series? > Signed-off-by: Tom Lendacky > --- > arch/x86/Kconfig | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 7bb1574..13249b5 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -1356,6 +1356,15 @@ config X86_DIRECT_GBPAGES > supports them), so don't confuse the user by printing > that we have them enabled. > > +config AMD_MEM_ENCRYPT > + bool "Secure Memory Encryption support for AMD" > + depends on X86_64 && CPU_SUP_AMD > + ---help--- > + Say yes to enable the encryption of system memory. This requires > + an AMD processor that supports Secure Memory Encryption (SME). > + The encryption of system memory is disabled by default but can be > + enabled with the mem_encrypt=on command line option. > + > # Common NUMA Features > config NUMA > bool "Numa Memory Allocation and Scheduler Support" -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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