bcm64: make the kernel use virtual timer counter register for cycles()

2021-07-25 14:12:17 +00:00 · 2021-07-25 14:12:17 +00:00 · 8a8329ad95
parent b7e67e9e36
commit 8a8329ad95
1 changed files with 3 additions and 0 deletions
--- a/sys/src/9/bcm64/l.s
+++ b/sys/src/9/bcm64/l.s
@ -298,6 +298,9 @@ _goodnight:
 	RETURN

 TEXT vcycles(SB), 1, $-4
+	MRS	CNTVCT_EL0, R0
+	RETURN
+
 TEXT lcycles(SB), 1, $-4
 	MRS	PMCCNTR_EL0, R0
 	RETURN