KVM: ia64: Add some debug points to provide crash infomation
[linux-2.6.git] / arch / ia64 / kvm / vcpu.c
index a528d70..ecd526b 100644 (file)
@@ -1651,7 +1651,8 @@ void vcpu_set_psr(struct kvm_vcpu *vcpu, unsigned long val)
         * Otherwise panic
         */
        if (val & (IA64_PSR_PK | IA64_PSR_IS | IA64_PSR_VM))
-               panic_vm(vcpu);
+               panic_vm(vcpu, "Only support guests with vpsr.pk =0 \
+                               & vpsr.is=0\n");
 
        /*
         * For those IA64_PSR bits: id/da/dd/ss/ed/ia
@@ -2104,7 +2105,7 @@ void kvm_init_all_rr(struct kvm_vcpu *vcpu)
 
        if (is_physical_mode(vcpu)) {
                if (vcpu->arch.mode_flags & GUEST_PHY_EMUL)
-                       panic_vm(vcpu);
+                       panic_vm(vcpu, "Machine Status conflicts!\n");
 
                ia64_set_rr((VRN0 << VRN_SHIFT), vcpu->arch.metaphysical_rr0);
                ia64_dv_serialize_data();
@@ -2153,10 +2154,70 @@ int vmm_entry(void)
        return 0;
 }
 
-void panic_vm(struct kvm_vcpu *v)
-{
+static void kvm_show_registers(struct kvm_pt_regs *regs)
+{
+       unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
+
+       struct kvm_vcpu *vcpu = current_vcpu;
+       if (vcpu != NULL)
+               printk("vcpu 0x%p vcpu %d\n",
+                      vcpu, vcpu->vcpu_id);
+
+       printk("psr : %016lx ifs : %016lx ip  : [<%016lx>]\n",
+              regs->cr_ipsr, regs->cr_ifs, ip);
+
+       printk("unat: %016lx pfs : %016lx rsc : %016lx\n",
+              regs->ar_unat, regs->ar_pfs, regs->ar_rsc);
+       printk("rnat: %016lx bspstore: %016lx pr  : %016lx\n",
+              regs->ar_rnat, regs->ar_bspstore, regs->pr);
+       printk("ldrs: %016lx ccv : %016lx fpsr: %016lx\n",
+              regs->loadrs, regs->ar_ccv, regs->ar_fpsr);
+       printk("csd : %016lx ssd : %016lx\n", regs->ar_csd, regs->ar_ssd);
+       printk("b0  : %016lx b6  : %016lx b7  : %016lx\n", regs->b0,
+                                                       regs->b6, regs->b7);
+       printk("f6  : %05lx%016lx f7  : %05lx%016lx\n",
+              regs->f6.u.bits[1], regs->f6.u.bits[0],
+              regs->f7.u.bits[1], regs->f7.u.bits[0]);
+       printk("f8  : %05lx%016lx f9  : %05lx%016lx\n",
+              regs->f8.u.bits[1], regs->f8.u.bits[0],
+              regs->f9.u.bits[1], regs->f9.u.bits[0]);
+       printk("f10 : %05lx%016lx f11 : %05lx%016lx\n",
+              regs->f10.u.bits[1], regs->f10.u.bits[0],
+              regs->f11.u.bits[1], regs->f11.u.bits[0]);
+
+       printk("r1  : %016lx r2  : %016lx r3  : %016lx\n", regs->r1,
+                                                       regs->r2, regs->r3);
+       printk("r8  : %016lx r9  : %016lx r10 : %016lx\n", regs->r8,
+                                                       regs->r9, regs->r10);
+       printk("r11 : %016lx r12 : %016lx r13 : %016lx\n", regs->r11,
+                                                       regs->r12, regs->r13);
+       printk("r14 : %016lx r15 : %016lx r16 : %016lx\n", regs->r14,
+                                                       regs->r15, regs->r16);
+       printk("r17 : %016lx r18 : %016lx r19 : %016lx\n", regs->r17,
+                                                       regs->r18, regs->r19);
+       printk("r20 : %016lx r21 : %016lx r22 : %016lx\n", regs->r20,
+                                                       regs->r21, regs->r22);
+       printk("r23 : %016lx r24 : %016lx r25 : %016lx\n", regs->r23,
+                                                       regs->r24, regs->r25);
+       printk("r26 : %016lx r27 : %016lx r28 : %016lx\n", regs->r26,
+                                                       regs->r27, regs->r28);
+       printk("r29 : %016lx r30 : %016lx r31 : %016lx\n", regs->r29,
+                                                       regs->r30, regs->r31);
+
+}
+
+void panic_vm(struct kvm_vcpu *v, const char *fmt, ...)
+{
+       va_list args;
+       char buf[256];
+
+       struct kvm_pt_regs *regs = vcpu_regs(v);
        struct exit_ctl_data *p = &v->arch.exit_data;
-
+       va_start(args, fmt);
+       vsnprintf(buf, sizeof(buf), fmt, args);
+       va_end(args);
+       printk(buf);
+       kvm_show_registers(regs);
        p->exit_reason = EXIT_REASON_VM_PANIC;
        vmm_transition(v);
        /*Never to return*/