From: Borislav Petkov <bp@alien8.de>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Luc, Piotr" <Piotr.Luc@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"he.chen@linux.intel.com" <he.chen@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"Kang, Luwei" <luwei.kang@intel.com>,
"rkrcmar@redhat.com" <rkrcmar@redhat.com>
Subject: Re: [PATCH] x86/cpuid: expose AVX512_4VNNIW and AVX512_4FMAPS features to kvm guest
Date: Fri, 28 Oct 2016 13:08:34 +0200 [thread overview]
Message-ID: <20161028110834.svzzs5hftg3bybiz@pd.tnic> (raw)
In-Reply-To: <5c00fdf0-a5a4-7a78-4ed8-8ae3ef710a68@redhat.com>
On Fri, Oct 28, 2016 at 12:17:02PM +0200, Paolo Bonzini wrote:
> Otherwise, if you add a cpuid_count_edx function to processor.h then one
> can do:
>
> entry_>edx &= cpuid_count_edx(7, 0);
>
> which is decent too.
If you think of iterating over the cpuid_bits[] array and recreating the
CPUID leaf for KVM, sure, why not...
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
next prev parent reply other threads:[~2016-10-28 11:08 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-28 9:12 [PATCH] x86/cpuid: expose AVX512_4VNNIW and AVX512_4FMAPS features to kvm guest He Chen
2016-10-28 9:31 ` Paolo Bonzini
2016-10-28 9:46 ` He Chen
2016-10-28 9:54 ` Paolo Bonzini
2016-10-28 9:55 ` He Chen
2016-10-28 10:13 ` Luc, Piotr
2016-10-28 10:17 ` Paolo Bonzini
2016-10-28 11:08 ` Borislav Petkov [this message]
2016-10-28 12:07 ` Paolo Bonzini
2016-10-28 12:21 ` Borislav Petkov
2016-10-29 12:21 ` Paolo Bonzini
2016-10-29 12:25 ` Borislav Petkov
2016-10-29 12:36 ` Paolo Bonzini
2016-10-29 12:53 ` Borislav Petkov
2016-10-29 13:20 ` Paolo Bonzini
2016-10-31 9:15 ` Luc, Piotr
2016-10-31 9:53 ` Borislav Petkov
2016-10-31 10:18 ` Luc, Piotr
2016-10-31 10:30 ` Borislav Petkov
2016-10-31 10:47 ` Paolo Bonzini
2016-10-31 11:05 ` Borislav Petkov
2016-10-31 11:41 ` Paolo Bonzini
2016-11-01 7:48 ` He Chen
2016-11-01 8:46 ` Borislav Petkov
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