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Re: [PATCH v2 2/2] target/i386: Implement AES instructions using AArch64

From: Richard Henderson
Subject: Re: [PATCH v2 2/2] target/i386: Implement AES instructions using AArch64 counterparts
Date: Wed, 31 May 2023 10:13:06 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 
On 5/31/23 04:22, Ard Biesheuvel wrote:

+++ b/util/cpuinfo-aarch64.c
@@ -56,6 +56,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void)
      unsigned long hwcap = qemu_getauxval(AT_HWCAP);
      info |= (hwcap & HWCAP_ATOMICS ? CPUINFO_LSE : 0);
      info |= (hwcap & HWCAP_USCAT ? CPUINFO_LSE2 : 0);
+    info |= (hwcap & HWCAP_AES ? CPUINFO_AES : 0);
  #endif
  #ifdef CONFIG_DARWIN
      info |= sysctl_for_bool("hw.optional.arm.FEAT_LSE") * CPUINFO_LSE;


FYI, "hw.optional.arm.FEAT_AES" exists for darwin, and is set for Apple M1.
I'll incorporate that when adding the probing.


r~
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