From f5b58e3d64ef3e38de28dd1e25e7734506dac258 Mon Sep 17 00:00:00 2001
From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Thu, 11 Jan 2018 17:47:59 +0000
Subject: [PATCH] x86/time: Print a more helpful error when a platform timer
 can't be found

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
---
 xen/arch/x86/time.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 2a879502a2..3b654d7b7d 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
@@ -708,7 +708,8 @@ static u64 __init init_platform_timer(void)
         }
     }
 
-    BUG_ON(rc <= 0);
+    if ( rc <= 0 )
+        panic("Unable to find usable platform timer");
 
     printk("Platform timer is %s %s\n",
            freq_string(pts->frequency), pts->name);
-- 
2.30.2