From: Jing Liu <jing2.liu@linux.intel.com>
To: pbonzini@redhat.com, kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, jing2.liu@intel.com,
jing2.liu@linux.intel.com
Subject: [PATCH RFC] kvm: x86: AVX512_BF16 feature support
Date: Thu, 20 Jun 2019 19:21:51 +0800 [thread overview]
Message-ID: <1561029712-11848-1-git-send-email-jing2.liu@linux.intel.com> (raw)
The patch focuses on a new instruction AVX512_BF16 support for kvm guest, defined
as CPUID.(EAX=7,ECX=1):EAX[bit 5], see spec[1].
The kvm implementation depends on kernel patch[2] which is in lkml discussion.
References:
[1] https://software.intel.com/sites/default/files/managed/c5/15/\
architecture-instruction-set-extensions-programming-reference.pdf
[2] https://lkml.org/lkml/2019/6/19/912
Jing Liu (1):
kvm: x86: Expose AVX512_BF16 feature to guest
arch/x86/kvm/cpuid.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--
1.8.3.1
next reply other threads:[~2019-06-20 11:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-20 11:21 Jing Liu [this message]
2019-06-20 11:21 ` [PATCH RFC] kvm: x86: Expose AVX512_BF16 feature to guest Jing Liu
2019-06-20 12:16 ` Paolo Bonzini
2019-06-20 15:09 ` Liu, Jing2
2019-06-24 3:10 ` Jing Liu
2019-06-24 8:33 ` Paolo Bonzini
2019-06-24 12:06 ` Jing Liu
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