diff mbox

Print Guest VMCS state on vmexit failure

Message ID 1256025045-4972-1-git-send-email-clalance@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Chris Lalancette Oct. 20, 2009, 7:50 a.m. UTC
None
diff mbox

Patch

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 311afd4..37b1682 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3452,6 +3452,14 @@  static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
 static const int kvm_vmx_max_exit_handlers =
 	ARRAY_SIZE(kvm_vmx_exit_handlers);
 
+#define PRINT_GUEST_SEGMENT(seg) do {					\
+	printk(KERN_DEBUG #seg ": SELECTOR 0x%lx, BASE 0x%lx, LIMIT 0x%lx, AR 0x%lx\n", \
+	       vmcs_readl(GUEST_##seg##_SELECTOR),			\
+	       vmcs_readl(GUEST_##seg##_BASE),				\
+	       vmcs_readl(GUEST_##seg##_LIMIT),				\
+	       vmcs_readl(GUEST_##seg##_AR_BYTES));			\
+	while(0)
+
 /*
  * The guest has exited.  See if we can fix it or if we need userspace
  * assistance.
@@ -3512,6 +3520,36 @@  static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	else {
 		vcpu->run->exit_reason = KVM_EXIT_UNKNOWN;
 		vcpu->run->hw.hardware_exit_reason = exit_reason;
+
+		printk(KERN_DEBUG "GUEST STATE:\n");
+		printk(KERN_DEBUG "CR0: 0x%lx\n", vmcs_readl(GUEST_CR0));
+		printk(KERN_DEBUG "CR3: 0x%lx\n", vmcs_readl(GUEST_CR3));
+		printk(KERN_DEBUG "CR4: 0x%lx\n", vmcs_readl(GUEST_CR4));
+		printk(KERN_DEBUG "VMENTRY CONTROL: 0x%lx\n",
+		       vmcs_readl(VM_ENTRY_CONTROLS));
+		printk(KERN_DEBUG "DR7: 0x%lx\n", vmcs_readl(GUEST_DR7));
+		printk(KERN_DEBUG "SYSENTER ESP: 0x%lx\n",
+		       vmcs_readl(GUEST_SYSENTER_ESP));
+		printk(KERN_DEBUG "SYSENTER EIP: 0x%lx\n",
+		       vmcs_readl(GUEST_SYSENTER_EIP));
+
+		PRINT_GUEST_SEGMENT(CS);
+		PRINT_GUEST_SEGMENT(SS);
+		PRINT_GUEST_SEGMENT(DS);
+		PRINT_GUEST_SEGMENT(ES);
+		PRINT_GUEST_SEGMENT(FS);
+		PRINT_GUEST_SEGMENT(GS);
+		PRINT_GUEST_SEGMENT(TR);
+		PRINT_GUEST_SEGMENT(LDTR);
+
+		printk(KERN_DEBUG "GDTR: BASE 0x%lx, LIMIT 0x%lx",
+		       vmcs_readl(GUEST_GDTR_BASE),
+		       vmcs_readl(GUEST_GDTR_LIMIT));
+		printk(KERN_DEBUG "IDTR: BASE 0x%lx, LIMIT 0x%lx",
+		       vmcs_readl(GUEST_IDTR_BASE),
+		       vmcs_readl(GUEST_IDTR_LIMIT));
+		printk(KERN_DEBUG "RIP: 0x%lx\n",vmcs_readl(GUEST_RIP));
+		printk(KERN_DEBUG "RFLAGS: 0x%lx\n",vmcs_readl(GUEST_RFLAGS));
 	}
 	return 0;
 }