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c1826ea6a0
Expose AVX (VEX-encoded) versions of the Vector Neural Network Instructions to guest. The bit definition: CPUID.(EAX=7,ECX=1):EAX[bit 4] AVX_VNNI The following instructions are available when this feature is present in the guest. 1. VPDPBUS: Multiply and Add Unsigned and Signed Bytes 2. VPDPBUSDS: Multiply and Add Unsigned and Signed Bytes with Saturation 3. VPDPWSSD: Multiply and Add Signed Word Integers 4. VPDPWSSDS: Multiply and Add Signed Integers with Saturation As for the kvm related code, please reference Linux commit id 1085a6b585d7. The release document ref below link: https://software.intel.com/content/www/us/en/develop/download/\ intel-architecture-instruction-set-extensions-programming-reference.html Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20210407015609.22936-1-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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