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src/cpu/x86/vm/vm_version_x86.cpp

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*** 675,684 **** --- 675,695 ---- if (!FLAG_IS_DEFAULT(UseAESIntrinsics)) warning("AES intrinsics are not available on this CPU"); FLAG_SET_DEFAULT(UseAESIntrinsics, false); } + // GHASH/GCM intrinsics + if (UseCLMUL && (UseSSE > 2)) { + if (FLAG_IS_DEFAULT(UseGHASHIntrinsics)) { + UseGHASHIntrinsics = true; + } + } else if (UseGHASHIntrinsics) { + if (!FLAG_IS_DEFAULT(UseGHASHIntrinsics)) + warning("GHASH intrinsic requires CLMUL and SSE2 instructions on this CPU"); + FLAG_SET_DEFAULT(UseGHASHIntrinsics, false); + } + if (UseSHA) { warning("SHA instructions are not available on this CPU"); FLAG_SET_DEFAULT(UseSHA, false); } if (UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics) {
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