From 9e7cf69ac36960d362b358fc8bcb12d29c1d2c69 Mon Sep 17 00:00:00 2001
From: XMRig <support@xmrig.com>
Date: Fri, 13 Jun 2025 21:02:10 +0700
Subject: [PATCH] Detect CPU name and AES instructions on Windows ARM64.

---
 src/backend/cpu/platform/BasicCpuInfo_arm_win.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/backend/cpu/platform/BasicCpuInfo_arm_win.cpp b/src/backend/cpu/platform/BasicCpuInfo_arm_win.cpp
index 623248a1..a11aa94d 100644
--- a/src/backend/cpu/platform/BasicCpuInfo_arm_win.cpp
+++ b/src/backend/cpu/platform/BasicCpuInfo_arm_win.cpp
@@ -18,10 +18,15 @@
 
 #include "backend/cpu/platform/BasicCpuInfo.h"
 
+#include <Windows.h>
+
 
 void xmrig::BasicCpuInfo::init_arm()
 {
-#   if __ARM_FEATURE_CRYPTO
-    m_flags.set(FLAG_AES, true); // FIXME
-#   endif
+    DWORD size         = sizeof(m_brand) - 1;
+    const char *subkey = "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0";
+
+    RegGetValueA(HKEY_LOCAL_MACHINE, subkey, "ProcessorNameString", RRF_RT_REG_SZ, nullptr, m_brand, &size);
+
+    m_flags.set(FLAG_AES, IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE));
 }