linux-kernel - Re: [tip: x86/cpu] x86/cpu: Clear SVM feature if disabled by BIOS

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Message-ID: <20230922113754.GEZQ18kuTDSB8W8epS@fat_crate.local>
Date:   Fri, 22 Sep 2023 13:37:54 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
        linux-tip-commits@...r.kernel.org, x86@...nel.org
Subject: Re: [tip: x86/cpu] x86/cpu: Clear SVM feature if disabled by BIOS

On Fri, Sep 22, 2023 at 01:18:09PM +0200, Paolo Bonzini wrote:
> AMD and Hygon pretend that they are different, and use different families
> for what is effectively the same processor, and that's silly.

Not entirely true. Off and on they come with enablement which is close
but then a bit different and it is either ifdeffery or do their own
functions.  For simplicity, we've done "do their own functions" as we
cannot test the common code on Hygon.

> ... because honestly who even thinks of Hygon...

There's that too.

-- 
Regards/Gruss,
    Boris.

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