Subject: [PATCH 1/2] powerpc/xmon: Allow passing an argument to ppc_md.restart()

From: Oliver O'Halloran <[email-masked]>
Date: Fri, 1 Nov 2019 19:55:21 +1100

On PowerNV a few different kinds of reboot are supported. We'd like to be
able to exercise these from xmon so allow 'zr' to take an argument, and
pass that to the ppc_md.restart() function.

Signed-off-by: Oliver O'Halloran <[email-masked]>
---
 arch/powerpc/xmon/xmon.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index d83364e..6a6f675 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1147,16 +1147,19 @@ static int do_step(struct pt_regs *regs)
 
 static void bootcmds(void)
 {
+	char tmp[64];
 	int cmd;
 
 	cmd = inchar();
-	if (cmd == 'r')
-		ppc_md.restart(NULL);
-	else if (cmd == 'h')
+	if (cmd == 'r') {
+		getstring(tmp, 64);
+		ppc_md.restart(tmp);
+	} else if (cmd == 'h') {
 		ppc_md.halt();
-	else if (cmd == 'p')
+	} else if (cmd == 'p') {
 		if (pm_power_off)
 			pm_power_off();
+	}
 }
 
 static int cpu_cmd(void)
-- 
2.9.5