Improved error reporting on vmlaunch/vmresume failure.

Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

diff --git a/xen/arch/x86/vmx_vmcs.c b/xen/arch/x86/vmx_vmcs.c
index c4bb82437c76e6942165f482b8c3c53ca90f2613..ff0555463c9a4ffd76d5e4feca6e01bce21bcb02 100644 (file)
--- a/xen/arch/x86/vmx_vmcs.c
+++ b/xen/arch/x86/vmx_vmcs.c
@@ -523,11 +523,17 @@ int store_vmcs(struct arch_vmx_struct *arch_vmx, u64 phys_ptr)
 
 void vm_launch_fail(unsigned long eflags)
 {
+    unsigned long error;
+    __vmread(VM_INSTRUCTION_ERROR, &error);
+    printk("<vm_launch_fail> error code %lx\n", error);
     __vmx_bug(guest_cpu_user_regs());
 }
 
 void vm_resume_fail(unsigned long eflags)
 {
+    unsigned long error;
+    __vmread(VM_INSTRUCTION_ERROR, &error);
+    printk("<vm_resume_fail> error code %lx\n", error);
     __vmx_bug(guest_cpu_user_regs());
 }