From fe5bf7c003b40ddd127e49b88a00346a613a9513 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Lesimple?= <speed47_github@speed47.net>
Date: Mon, 6 Apr 2026 17:01:17 +0200
Subject: [PATCH] fix: wrmsr: specify core number (closes #294)

---
 src/libs/340_cpu_msr.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/libs/340_cpu_msr.sh b/src/libs/340_cpu_msr.sh
index 067c972..33500f1 100644
--- a/src/libs/340_cpu_msr.sh
+++ b/src/libs/340_cpu_msr.sh
@@ -86,14 +86,13 @@ write_msr_one_core() {
         ret=$?
     else
         # for Linux
-        # convert to decimal
         if [ ! -w $CPU_DEV_BASE/"$core"/msr ]; then
             ret_write_msr_msg="No write permission on $CPU_DEV_BASE/$core/msr"
             return $WRITE_MSR_RET_ERR
         # if wrmsr is available, use it
         elif command -v wrmsr >/dev/null 2>&1 && [ "${SMC_NO_WRMSR:-}" != 1 ]; then
             pr_debug "write_msr: using wrmsr"
-            wrmsr $msr_dec $value_dec 2>/dev/null
+            wrmsr -p "$core" $msr_dec $value_dec 2>/dev/null
             ret=$?
             # ret=4: msr doesn't exist, ret=127: msr.allow_writes=off
             [ "$ret" = 127 ] && write_denied=1