cloudflared/vendor/github.com/quic-go/qtls-go1-19/cpu.go
Devin Carr 9426b60308 TUN-7227: Migrate to devincarr/quic-go
The lucas-clemente/quic-go package moved namespaces and our branch
went stale, this new fork provides support for the new quic-go repo
and applies the max datagram frame size change.

Until the max datagram frame size support gets upstreamed into quic-go,
this can be used to unblock go 1.20 support as the old
lucas-clemente/quic-go will not get go 1.20 support.
2023-05-10 19:44:15 +00:00

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565 B
Go

//go:build !js
// +build !js
package qtls
import (
"runtime"
"golang.org/x/sys/cpu"
)
var (
hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
// Keep in sync with crypto/aes/cipher_s390x.go.
hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
runtime.GOARCH == "s390x" && hasGCMAsmS390X
)