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Message-ID: <202007241054.25B564BA61@keescook>
Date: Fri, 24 Jul 2020 10:54:38 -0700
From: Kees Cook <keescook@...omium.org>
To: Joerg Roedel <joro@...tes.org>
Cc: x86@...nel.org, Joerg Roedel <jroedel@...e.de>, hpa@...or.com,
Andy Lutomirski <luto@...nel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Jiri Slaby <jslaby@...e.cz>,
Dan Williams <dan.j.williams@...el.com>,
Tom Lendacky <thomas.lendacky@....com>,
Juergen Gross <jgross@...e.com>,
David Rientjes <rientjes@...gle.com>,
Cfir Cohen <cfir@...gle.com>,
Erdem Aktas <erdemaktas@...gle.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Mike Stunes <mstunes@...are.com>,
Sean Christopherson <sean.j.christopherson@...el.com>,
Martin Radev <martin.b.radev@...il.com>,
linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v5 38/75] x86/sev-es: Add SEV-ES Feature Detection
On Fri, Jul 24, 2020 at 06:02:59PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@...e.de>
>
> Add the sev_es_active function for checking whether SEV-ES is enabled.
> Also cache the value of MSR_AMD64_SEV at boot to speed up the feature
> checking in the running code.
>
> Signed-off-by: Joerg Roedel <jroedel@...e.de>
Reviewed-by: Kees Cook <keescook@...omium.org>
--
Kees Cook
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