Re: [PATCH v7 23/36] x86, realmode: Decrypt trampoline area if memory encryption is active

From	Borislav Petkov <bp@alien8.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH v7 23/36] x86, realmode: Decrypt trampoline area if memory encryption is active
Date	2017-06-21 11:50 +0200
Message-ID	<tUKqS-4oF-9@gated-at.bofh.it> (permalink)
References	<tTjsJ-5VA-5@gated-at.bofh.it> <tUKqS-4oF-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Fri, Jun 16, 2017 at 01:54:12PM -0500, Tom Lendacky wrote:
> When Secure Memory Encryption is enabled, the trampoline area must not
> be encrypted. A CPU running in real mode will not be able to decrypt
> memory that has been encrypted because it will not be able to use addresses
> with the memory encryption mask.
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
>  arch/x86/realmode/init.c |    8 ++++++++
>  1 file changed, 8 insertions(+)

Subject: x86/realmode: ...

other than that:

Reviewed-by: Borislav Petkov <bp@suse.de>

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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Re: [PATCH v7 23/36] x86, realmode: Decrypt trampoline area if  memory encryption is active Borislav Petkov <bp@alien8.de> - 2017-06-21 11:50 +0200

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