linux-kernel - Re: [PATCH] crypto: x86/aes-ni: fix AVX detection

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Message-ID: <20211103145231.GA4485@gondor.apana.org.au>
Date:   Wed, 3 Nov 2021 22:52:31 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     Maxim Levitsky <mlevitsk@...hat.com>, linux-kernel@...r.kernel.org,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        "open list:CRYPTO API" <linux-crypto@...r.kernel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        "H. Peter Anvin" <hpa@...or.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>
Subject: Re: [PATCH] crypto: x86/aes-ni: fix AVX detection

On Wed, Nov 03, 2021 at 07:43:43AM -0700, Dave Hansen wrote:
>
> The kernel shouldn't crash in this case.  We've got a software
> dependency which should disable AVX2 if AVX is off:

It's qemu, I thought it was a qemu bug but Paulo disagrees.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt