From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from galois.linutronix.de ([2a01:7a0:2:106d:700::1]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dNQ63-0007X5-U0 for kexec@lists.infradead.org; Tue, 20 Jun 2017 20:50:01 +0000 Date: Tue, 20 Jun 2017 22:49:31 +0200 (CEST) From: Thomas Gleixner Subject: Re: [PATCH v7 06/36] x86/mm: Add Secure Memory Encryption (SME) support In-Reply-To: <20170616185054.18967.52228.stgit@tlendack-t1.amdoffice.net> Message-ID: References: <20170616184947.18967.84890.stgit@tlendack-t1.amdoffice.net> <20170616185054.18967.52228.stgit@tlendack-t1.amdoffice.net> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Tom Lendacky Cc: linux-efi@vger.kernel.org, Brijesh Singh , Toshimitsu Kani , linux-doc@vger.kernel.org, Matt Fleming , x86@kernel.org, linux-mm@kvack.org, =?ISO-8859-2?Q?Radim_Kr=E8m=E1=F8?= , Alexander Potapenko , "H. Peter Anvin" , Larry Woodman , linux-arch@vger.kernel.org, kvm@vger.kernel.org, Jonathan Corbet , Joerg Roedel , "Michael S. Tsirkin" , kasan-dev@googlegroups.com, Ingo Molnar , Andrey Ryabinin , Dave Young , Rik van Riel , Arnd Bergmann , Konrad Rzeszutek Wilk , Borislav Petkov , Andy Lutomirski , Boris Ostrovsky , Dmitry Vyukov , Juergen Gross , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, xen-devel@lists.xen.org, iommu@lists.linux-foundation.org, Paolo Bonzini On Fri, 16 Jun 2017, Tom Lendacky wrote: > > +config ARCH_HAS_MEM_ENCRYPT > + def_bool y > + depends on X86 That one is silly. The config switch is in the x86 KConfig file, so X86 is on. If you intended to move this to some generic place outside of x86/Kconfig then this should be config ARCH_HAS_MEM_ENCRYPT bool and x86/Kconfig should have select ARCH_HAS_MEM_ENCRYPT and that should be selected by AMD_MEM_ENCRYPT > +config AMD_MEM_ENCRYPT > + bool "AMD Secure Memory Encryption (SME) support" > + depends on X86_64 && CPU_SUP_AMD > + ---help--- > + Say yes to enable support for the encryption of system memory. > + This requires an AMD processor that supports Secure Memory > + Encryption (SME). Thanks, tglx _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec