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From: | Xiaoyao Li |
Subject: | Re: [PATCH v2 0/6] target/i386: Support new Intel platform Instructions in CPUID enumeration |
Date: | Sat, 4 Mar 2023 12:04:51 +0800 |
User-agent: | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.8.0 |
On 3/3/2023 2:59 PM, Tao Su wrote:
Intel platforms Granite Rapids/Sierra Forest introduce below new instructions and CPUID leaves: - CMPccXADD CPUID.(EAX=7,ECX=1):EAX[bit 7] - AMX-FP16 CPUID.(EAX=7,ECX=1):EAX[bit 21] - AVX-IFMA CPUID.(EAX=7,ECX=1):EAX[bit 23] - AVX-VNNI-INT8 CPUID.(EAX=7,ECX=1):EDX[bit 4] - AVX-NE-CONVERT CPUID.(EAX=7,ECX=1):EDX[bit 5] - PREFETCHITI CPUID.(EAX=7,ECX=1):EDX[bit 14] Details can be found in recent Intel ISE (Instruction Set Extensions)[1]. KVM part of advertising these CPUID bits have been already in Linux mainline from commit(6a19d7aa5821) to commit(29c46979b25d). This series adds the counterpart in QEMU to allow these features exposed to guest. [1] Intel ISE: https://cdrdv2.intel.com/v1/dl/getContent/671368
For the whole series, Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
--- Changelog: v2: - Rebase to latest QEMU. - Improve changelog. v1: - https://lore.kernel.org/all/20221208071917.1923093-1-jiaxi.chen@linux.intel.com/ Jiaxi Chen (6): target/i386: Add support for CMPCCXADD in CPUID enumeration target/i386: Add support for AMX-FP16 in CPUID enumeration target/i386: Add support for AVX-IFMA in CPUID enumeration target/i386: Add support for AVX-VNNI-INT8 in CPUID enumeration target/i386: Add support for AVX-NE-CONVERT in CPUID enumeration target/i386: Add support for PREFETCHIT0/1 in CPUID enumeration target/i386/cpu.c | 26 +++++++++++++++++++++++--- target/i386/cpu.h | 14 ++++++++++++++ 2 files changed, 37 insertions(+), 3 deletions(-) base-commit: 627634031092e1514f363fd8659a579398de0f0e
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