mirror of
https://github.com/golang/sys.git
synced 2026-01-29 07:02:06 +03:00
c0a9559877
This CL adds RISC-V cryptography extensions detection. Direct detection of the extensions zvkned, zvknhb, zvksed and zvksh is not supported, since the crypto spec requires these extensions implemented with data independent timing (zkt). However, their presence may be inferred by checking for the shorthand extensions: zvkn, zvknc, zvkng, zvks, zvksc, zvksg. Change-Id: Ic00038cebf1b9f77426876b06b08f206473ad6fb Reviewed-on: https://go-review.googlesource.com/c/sys/+/664375 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Reviewed-by: Carlos Amedee <carlos@golang.org> Reviewed-by: Pengcheng Wang <wangpengcheng.pp@bytedance.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
33 lines
1.1 KiB
Go
33 lines
1.1 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build riscv64
|
|
|
|
package cpu
|
|
|
|
const cacheLineSize = 64
|
|
|
|
func initOptions() {
|
|
options = []option{
|
|
{Name: "fastmisaligned", Feature: &RISCV64.HasFastMisaligned},
|
|
{Name: "c", Feature: &RISCV64.HasC},
|
|
{Name: "v", Feature: &RISCV64.HasV},
|
|
{Name: "zba", Feature: &RISCV64.HasZba},
|
|
{Name: "zbb", Feature: &RISCV64.HasZbb},
|
|
{Name: "zbs", Feature: &RISCV64.HasZbs},
|
|
// RISC-V Cryptography Extensions
|
|
{Name: "zvbb", Feature: &RISCV64.HasZvbb},
|
|
{Name: "zvbc", Feature: &RISCV64.HasZvbc},
|
|
{Name: "zvkb", Feature: &RISCV64.HasZvkb},
|
|
{Name: "zvkg", Feature: &RISCV64.HasZvkg},
|
|
{Name: "zvkt", Feature: &RISCV64.HasZvkt},
|
|
{Name: "zvkn", Feature: &RISCV64.HasZvkn},
|
|
{Name: "zvknc", Feature: &RISCV64.HasZvknc},
|
|
{Name: "zvkng", Feature: &RISCV64.HasZvkng},
|
|
{Name: "zvks", Feature: &RISCV64.HasZvks},
|
|
{Name: "zvksc", Feature: &RISCV64.HasZvksc},
|
|
{Name: "zvksg", Feature: &RISCV64.HasZvksg},
|
|
}
|
|
}
|