KVM: ia64: Add some debug points to provide crash infomation
Use printk infrastructure to print out some debug info once VM crashes.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c
index 8008173..cefc349 100644
--- a/arch/ia64/kvm/process.c
+++ b/arch/ia64/kvm/process.c
@@ -527,7 +527,8 @@
vector = vec2off[vec];
if (!(vpsr & IA64_PSR_IC) && (vector != IA64_DATA_NESTED_TLB_VECTOR)) {
- panic_vm(vcpu);
+ panic_vm(vcpu, "Interruption with vector :0x%lx occurs "
+ "with psr.ic = 0\n", vector);
return;
}
@@ -586,7 +587,7 @@
vcpu_set_gr(vcpu, 10, p->u.pal_data.ret.v1, 0);
vcpu_set_gr(vcpu, 11, p->u.pal_data.ret.v2, 0);
} else
- panic_vm(vcpu);
+ panic_vm(vcpu, "Mis-set for exit reason!\n");
}
static void set_sal_call_data(struct kvm_vcpu *vcpu)
@@ -614,7 +615,7 @@
vcpu_set_gr(vcpu, 10, p->u.sal_data.ret.r10, 0);
vcpu_set_gr(vcpu, 11, p->u.sal_data.ret.r11, 0);
} else
- panic_vm(vcpu);
+ panic_vm(vcpu, "Mis-set for exit reason!\n");
}
void kvm_ia64_handle_break(unsigned long ifa, struct kvm_pt_regs *regs,
@@ -680,7 +681,7 @@
vpsr = VCPU(vcpu, vpsr);
isr = vpsr & IA64_PSR_RI;
if (!(vpsr & IA64_PSR_IC))
- panic_vm(vcpu);
+ panic_vm(vcpu, "Trying to inject one IRQ with psr.ic=0\n");
reflect_interruption(0, isr, 0, 12, regs); /* EXT IRQ */
}