From: Bamvor Jian Zhang <bjzhang@suse.com>
Date: Mon, 4 Nov 2013 08:01:25 +0000 (+0800)
Subject: xen: arm: enable 32bit kernel stack trace
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~6074
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=785e2c1f5d45225a43ea0d46702fc09d508e04bd;p=xen.git

xen: arm: enable 32bit kernel stack trace

Signed-off-by: Bamvor Jian Zhang <bjzhang@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 4c0fc323ac..287dd7bea1 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -629,12 +629,20 @@ static void show_guest_stack(struct vcpu *v, struct cpu_user_regs *regs)
         return;
 
     case PSR_MODE_FIQ:
+        sp = regs->sp_fiq;
+        break;
     case PSR_MODE_IRQ:
+        sp = regs->sp_irq;
+        break;
     case PSR_MODE_SVC:
+        sp = regs->sp_svc;
+        break;
     case PSR_MODE_ABT:
+        sp = regs->sp_abt;
+        break;
     case PSR_MODE_UND:
-        printk("No stack trace for 32-bit guest kernel-mode\n");
-        return;
+        sp = regs->sp_und;
+        break;
 
 #ifdef CONFIG_ARM_64
     case PSR_MODE_EL1t: