From 9881744c95737264c7cd9f13b3c70042c03584aa Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Fri, 1 Jan 2021 23:58:06 +0100
Subject: Windows: Add support for ARM64 platform (e.g. Microsoft Surface Pro
 X). System encryption still not implemented on ARM64

---
 src/Crypto/jitterentropy-base-user.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/Crypto/jitterentropy-base-user.h')

diff --git a/src/Crypto/jitterentropy-base-user.h b/src/Crypto/jitterentropy-base-user.h
index bfb3a605..3a33dcd6 100644
--- a/src/Crypto/jitterentropy-base-user.h
+++ b/src/Crypto/jitterentropy-base-user.h
@@ -70,7 +70,17 @@ typedef int32 ssize_t;
 
 static VC_INLINE void jent_get_nstime(uint64 *out)
 {
+#ifdef _M_ARM64
+	LARGE_INTEGER v = { 0 };
+#ifdef TC_WINDOWS_DRIVER
+		v = KeQueryPerformanceCounter(NULL);
+#else
+		QueryPerformanceCounter(&v);
+#endif
+		* out = v.QuadPart;
+#else
 	*out = __rdtsc();;
+#endif
 }
 
 #else
-- 
cgit v1.2.3