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Groups > linux.kernel > #1555758 > unrolled thread
| Started by | Piotr Luc <piotr.luc@intel.com> |
|---|---|
| First post | 2017-01-10 18:40 +0100 |
| Last post | 2017-01-10 18:40 +0100 |
| Articles | 1 — 1 participant |
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[PATCH v1 0/2] vpopcntdq support Piotr Luc <piotr.luc@intel.com> - 2017-01-10 18:40 +0100
| From | Piotr Luc <piotr.luc@intel.com> |
|---|---|
| Date | 2017-01-10 18:40 +0100 |
| Subject | [PATCH v1 0/2] vpopcntdq support |
| Message-ID | <sY8yR-4e0-19@gated-at.bofh.it> |
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
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