kernel/fiasco/src/kern/ia32/vm_factory-ia32.cpp

   1 IMPLEMENTATION [vmx && svm]:
   2
   3 #include "ram_quota.h"
   4 #include "svm.h"
   5 #include "vm_svm.h"
   6 #include "vmx.h"
   7 #include "vm_vmx.h"
   8 #include "vm_vmx_ept.h"
   9
  10 PRIVATE static inline
  11 template< typename VM >
  12 VM *
  13 Vm_factory::allocate(Ram_quota *quota)
  14 {
  15   if (void *t = Vm::allocator<VM>()->q_alloc(quota))
  16     {
  17       VM *a = new (t) VM(quota);
  18       if (a->initialize())
  19         return a;
  20
  21       delete a;
  22     }
  23
  24   return 0;
  25 }
  26
  27 IMPLEMENT
  28 Vm *
  29 Vm_factory::create(Ram_quota *quota, int *err)
  30 {
  31   *err = -L4_err::ENomem;
  32   if (Svm::cpus.current().svm_enabled())
  33     return allocate<Vm_svm>(quota);
  34   if (Vmx::cpus.current().vmx_enabled())
  35     {
  36       if (Vmx::cpus.current().info.procbased_ctls2.allowed(Vmx::PRB2_enable_ept))
  37         return allocate<Vm_vmx_ept>(quota);
  38       else
  39         return allocate<Vm_vmx>(quota);
  40     }
  41   *err = L4_err::ENodev;
  42   return 0;
  43 }
  44