From: Piotr Luc <piotr.luc@intel.com>
To: x86@kernel.org
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"H . Peter Anvin" <hpa@zytor.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1 0/2] vpopcntdq support
Date: Tue, 10 Jan 2017 18:34:01 +0100 [thread overview]
Message-ID: <20170110173403.6010-1-piotr.luc@intel.com> (raw)
Hi,
This patchset adds the support for new CPUID feature bit that announces the
vector population count instructions for dwords and qwords.
The path 1/2 adds new feature flags and handles clearing the feature bit in
case xsave is not enabled.
The patch 2/2 enables passing the feature bit to a kvm/quemu guest.
The patchset is based on v4.10-rc3.
Regards,
Piotr
Piotr Luc (2):
x86/cpufeature: Add AVX512_VPOPCNTDQ feature
kvm: x86: Expose Intel VPOPCNTDQ feature to guest
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/kernel/fpu/xstate.c | 1 +
arch/x86/kvm/cpuid.c | 2 +-
tools/arch/x86/include/asm/cpufeatures.h | 1 +
4 files changed, 4 insertions(+), 2 deletions(-)
--
2.10.1
next reply other threads:[~2017-01-10 17:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-10 17:34 Piotr Luc [this message]
2017-01-10 17:34 ` [PATCH v1 1/2] x86/cpufeature: Add AVX512_VPOPCNTDQ feature Piotr Luc
2017-01-16 17:23 ` Borislav Petkov
2017-01-16 19:43 ` [tip:x86/cpufeature] " tip-bot for Piotr Luc
2017-01-10 17:34 ` [PATCH v1 2/2] kvm: x86: Expose Intel VPOPCNTDQ feature to guest Piotr Luc
2017-01-20 18:00 ` Radim Krčmář
2017-01-10 17:39 ` [PATCH v1 0/2] vpopcntdq support Paolo Bonzini
2017-01-11 13:02 ` Luc, Piotr
2017-01-16 19:43 ` Thomas Gleixner
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