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| author | Yang Zhong <[email protected]> | 2021-01-05 00:49:09 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2021-02-04 10:27:16 +0000 |
| commit | 1085a6b585d7d1c441cd10fdb4c7a4d96a22eba7 (patch) | |
| tree | 62ad0e885c2b2067134cbbd0b94a486a0d783e35 /tools/testing/selftests/kvm/lib/perf_test_util.c | |
| parent | Enumerate AVX Vector Neural Network instructions (diff) | |
| download | kernel-1085a6b585d7d1c441cd10fdb4c7a4d96a22eba7.tar.gz kernel-1085a6b585d7d1c441cd10fdb4c7a4d96a22eba7.zip | |
KVM: Expose AVX_VNNI instruction to guset
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
This instruction is currently documented in the latest "extensions"
manual (ISE). It will appear in the "main" manual (SDM) in the future.
Signed-off-by: Yang Zhong <[email protected]>
Reviewed-by: Tony Luck <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/testing/selftests/kvm/lib/perf_test_util.c')
0 files changed, 0 insertions, 0 deletions