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cpu: detect RDRAND and RDSEED instructions on x86

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Change-Id: I2d0094d64ba12f888758aeebdb43aed353ddeeb9
Reviewed-on: https://go-review.googlesource.com/c/160577
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2019-02-01 07:34:06 +00:00
committed by Tobias Klauser
parent aca44879d5
commit 2970a3744d
2 changed files with 4 additions and 0 deletions
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cpu/cpu.go
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@@ -29,6 +29,8 @@ var X86 struct {
HasOSXSAVE bool // OS supports XSAVE/XRESTOR for saving/restoring XMM registers.
HasPCLMULQDQ bool // PCLMULQDQ instruction - most often used for AES-GCM
HasPOPCNT bool // Hamming weight instruction POPCNT.
HasRDRAND bool // RDRAND instruction (on-chip random number generator)
HasRDSEED bool // RDSEED instruction (on-chip random number generator)
HasSSE2 bool // Streaming SIMD extension 2 (always available on amd64)
HasSSE3 bool // Streaming SIMD extension 3
HasSSSE3 bool // Supplemental streaming SIMD extension 3