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Subject: Re: [PATCH v5 07/32] x86/mm: Add support to enable SME in early boot
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References: <20170418211612.10190.82788.stgit@tlendack-t1.amdoffice.net>
 <20170418211735.10190.29562.stgit@tlendack-t1.amdoffice.net>
 <20170421145555.v3xeaijv3vjclsos@pd.tnic>
From: Tom Lendacky <thomas.lendacky@amd.com>
Message-ID: <0b455224-f73e-d6f6-45c2-336178a89071@amd.com>
Date: Fri, 21 Apr 2017 16:40:29 -0500
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To: Borislav Petkov <bp@alien8.de>
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 <riel@redhat.com>, =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>, Toshimitsu Kani <toshi.kani@hpe.com>, Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>, Matt Fleming <matt@codeblueprint.co.uk>, "Michael S.
 Tsirkin" <mst@redhat.com>, Joerg Roedel <joro@8bytes.org>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Paolo Bonzini <pbonzini@redhat.com>, Larry Woodman <lwoodman@redhat.com>, Brijesh Singh <brijesh.singh@amd.com>, Ingo Molnar <mingo@redhat.com>, Andy Lutomirski <luto@kernel.org>, "H. Peter
 Anvin" <hpa@zytor.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Dave Young <dyoung@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, Dmitry Vyukov <dvyukov@google.com>

On 4/21/2017 9:55 AM, Borislav Petkov wrote:
> On Tue, Apr 18, 2017 at 04:17:35PM -0500, Tom Lendacky wrote:
>> Add support to the early boot code to use Secure Memory Encryption (SME).
>> Since the kernel has been loaded into memory in a decrypted state, support
>> is added to encrypt the kernel in place and update the early pagetables
>
> s/support is added to //

Done.

Thanks,
Tom

>
>> with the memory encryption mask so that new pagetable entries will use
>> memory encryption.
>>
>

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