hw/x86: implement wrmsr in macro

Issue #3623
2025-04-10 12:51:34 +00:00 · 2020-01-28 14:48:06 +01:00 · 2020-01-28 14:48:06 +01:00 · 507a34b3d0
commit 507a34b3d0
parent 677d9abd07
1 changed files with 3 additions and 1 deletions
--- a/repos/base-hw/src/include/hw/spec/x86_64/register_macros.h
+++ b/repos/base-hw/src/include/hw/spec/x86_64/register_macros.h
@ -43,7 +43,9 @@
 			return (high << 32) | (low & ~0U); \
 		} \
 \
-		static void write(access_t const) { } \
+		static void write(access_t const value) { \
+			asm volatile ("wrmsr" : : "a" (value), "d" (value >> 32), "c" (msr)); \
+		} \
 \
 		__VA_ARGS__; \
 	};