From mboxrd@z Thu Jan  1 00:00:00 1970
From: Borislav Petkov <bp@alien8.de>
Subject: Re: [RFC PATCH v3 04/20] x86: Handle reduction in physical address
 size with SME
Date: Tue, 15 Nov 2016 22:33:12 +0100
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To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Joerg Roedel <joro@8bytes.org>, 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, Rik van Riel <riel@redhat.com>, Radim =?utf-8?B?S3LEjW3DocWZ?= <rkrcmar@redhat.com>, Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>, Matt Fleming <matt@codeblueprint.co.uk>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Paolo Bonzini <pbonzini@redhat.com>, Larry Woodman <lwoodman@redhat.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>
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On Tue, Nov 15, 2016 at 03:22:45PM -0600, Tom Lendacky wrote:
> Hmmm... I still need the ebx value from the CPUID instruction to
> calculate the proper reduction in physical bits, so I'll still need
> to make the CPUID call.

        if (c->extended_cpuid_level >= 0x8000001f) {
                cpuid(0x8000001f, &eax, &ebx, &ecx, &edx);

		...

just like the rest of get_cpu_cap() :)

-- 
Regards/Gruss,
    Boris.

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