arch/x86/kvm/vmx_shadow_fields.h

   1 #ifndef SHADOW_FIELD_RO
   2 #define SHADOW_FIELD_RO(x)
   3 #endif
   4 #ifndef SHADOW_FIELD_RW
   5 #define SHADOW_FIELD_RW(x)
   6 #endif
   7
   8 /*
   9  * We do NOT shadow fields that are modified when L0
  10  * traps and emulates any vmx instruction (e.g. VMPTRLD,
  11  * VMXON...) executed by L1.
  12  * For example, VM_INSTRUCTION_ERROR is read
  13  * by L1 if a vmx instruction fails (part of the error path).
  14  * Note the code assumes this logic. If for some reason
  15  * we start shadowing these fields then we need to
  16  * force a shadow sync when L0 emulates vmx instructions
  17  * (e.g. force a sync if VM_INSTRUCTION_ERROR is modified
  18  * by nested_vmx_failValid)
  19  *
  20  * When adding or removing fields here, note that shadowed
  21  * fields must always be synced by prepare_vmcs02, not just
  22  * prepare_vmcs02_full.
  23  */
  24
  25 /*
  26  * Keeping the fields ordered by size is an attempt at improving
  27  * branch prediction in vmcs_read_any and vmcs_write_any.
  28  */
  29
  30 /* 16-bits */
  31 SHADOW_FIELD_RW(GUEST_CS_SELECTOR)
  32 SHADOW_FIELD_RW(GUEST_INTR_STATUS)
  33 SHADOW_FIELD_RW(GUEST_PML_INDEX)
  34 SHADOW_FIELD_RW(HOST_FS_SELECTOR)
  35 SHADOW_FIELD_RW(HOST_GS_SELECTOR)
  36
  37 /* 32-bits */
  38 SHADOW_FIELD_RO(VM_EXIT_REASON)
  39 SHADOW_FIELD_RO(VM_EXIT_INTR_INFO)
  40 SHADOW_FIELD_RO(VM_EXIT_INSTRUCTION_LEN)
  41 SHADOW_FIELD_RO(IDT_VECTORING_INFO_FIELD)
  42 SHADOW_FIELD_RO(IDT_VECTORING_ERROR_CODE)
  43 SHADOW_FIELD_RO(VM_EXIT_INTR_ERROR_CODE)
  44 SHADOW_FIELD_RW(CPU_BASED_VM_EXEC_CONTROL)
  45 SHADOW_FIELD_RW(EXCEPTION_BITMAP)
  46 SHADOW_FIELD_RW(VM_ENTRY_EXCEPTION_ERROR_CODE)
  47 SHADOW_FIELD_RW(VM_ENTRY_INTR_INFO_FIELD)
  48 SHADOW_FIELD_RW(VM_ENTRY_INSTRUCTION_LEN)
  49 SHADOW_FIELD_RW(TPR_THRESHOLD)
  50 SHADOW_FIELD_RW(GUEST_CS_LIMIT)
  51 SHADOW_FIELD_RW(GUEST_CS_AR_BYTES)
  52 SHADOW_FIELD_RW(GUEST_INTERRUPTIBILITY_INFO)
  53 SHADOW_FIELD_RW(VMX_PREEMPTION_TIMER_VALUE)
  54
  55 /* Natural width */
  56 SHADOW_FIELD_RO(EXIT_QUALIFICATION)
  57 SHADOW_FIELD_RO(GUEST_LINEAR_ADDRESS)
  58 SHADOW_FIELD_RW(GUEST_RIP)
  59 SHADOW_FIELD_RW(GUEST_RSP)
  60 SHADOW_FIELD_RW(GUEST_CR0)
  61 SHADOW_FIELD_RW(GUEST_CR3)
  62 SHADOW_FIELD_RW(GUEST_CR4)
  63 SHADOW_FIELD_RW(GUEST_RFLAGS)
  64 SHADOW_FIELD_RW(GUEST_CS_BASE)
  65 SHADOW_FIELD_RW(GUEST_ES_BASE)
  66 SHADOW_FIELD_RW(CR0_GUEST_HOST_MASK)
  67 SHADOW_FIELD_RW(CR0_READ_SHADOW)
  68 SHADOW_FIELD_RW(CR4_READ_SHADOW)
  69 SHADOW_FIELD_RW(HOST_FS_BASE)
  70 SHADOW_FIELD_RW(HOST_GS_BASE)
  71
  72 /* 64-bit */
  73 SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS)
  74 SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS_HIGH)
  75
  76 #undef SHADOW_FIELD_RO
  77 #undef SHADOW_FIELD_RW