LXR linux/arch/x86/kvm/vmx/vmcs_shadow

   1#if !defined(SHADOW_FIELD_RO) && !defined(SHADOW_FIELD_RW)
   2BUILD_BUG_ON(1)
   3#endif
   4
   5#ifndef SHADOW_FIELD_RO
   6#define SHADOW_FIELD_RO(x, y)
   7#endif
   8#ifndef SHADOW_FIELD_RW
   9#define SHADOW_FIELD_RW(x, y)
  10#endif
  11
  12/*
  13 * We do NOT shadow fields that are modified when L0
  14 * traps and emulates any vmx instruction (e.g. VMPTRLD,
  15 * VMXON...) executed by L1.
  16 * For example, VM_INSTRUCTION_ERROR is read
  17 * by L1 if a vmx instruction fails (part of the error path).
  18 * Note the code assumes this logic. If for some reason
  19 * we start shadowing these fields then we need to
  20 * force a shadow sync when L0 emulates vmx instructions
  21 * (e.g. force a sync if VM_INSTRUCTION_ERROR is modified
  22 * by nested_vmx_failValid)
  23 *
  24 * When adding or removing fields here, note that shadowed
  25 * fields must always be synced by prepare_vmcs02, not just
  26 * prepare_vmcs02_rare.
  27 */
  28
  29/*
  30 * Keeping the fields ordered by size is an attempt at improving
  31 * branch prediction in vmcs12_read_any and vmcs12_write_any.
  32 */
  33
  34/* 16-bits */
  35SHADOW_FIELD_RW(GUEST_INTR_STATUS, guest_intr_status)
  36SHADOW_FIELD_RW(GUEST_PML_INDEX, guest_pml_index)
  37SHADOW_FIELD_RW(HOST_FS_SELECTOR, host_fs_selector)
  38SHADOW_FIELD_RW(HOST_GS_SELECTOR, host_gs_selector)
  39
  40/* 32-bits */
  41SHADOW_FIELD_RO(VM_EXIT_REASON, vm_exit_reason)
  42SHADOW_FIELD_RO(VM_EXIT_INTR_INFO, vm_exit_intr_info)
  43SHADOW_FIELD_RO(VM_EXIT_INSTRUCTION_LEN, vm_exit_instruction_len)
  44SHADOW_FIELD_RO(IDT_VECTORING_INFO_FIELD, idt_vectoring_info_field)
  45SHADOW_FIELD_RO(IDT_VECTORING_ERROR_CODE, idt_vectoring_error_code)
  46SHADOW_FIELD_RO(VM_EXIT_INTR_ERROR_CODE, vm_exit_intr_error_code)
  47SHADOW_FIELD_RO(GUEST_CS_AR_BYTES, guest_cs_ar_bytes)
  48SHADOW_FIELD_RO(GUEST_SS_AR_BYTES, guest_ss_ar_bytes)
  49SHADOW_FIELD_RW(CPU_BASED_VM_EXEC_CONTROL, cpu_based_vm_exec_control)
  50SHADOW_FIELD_RW(PIN_BASED_VM_EXEC_CONTROL, pin_based_vm_exec_control)
  51SHADOW_FIELD_RW(EXCEPTION_BITMAP, exception_bitmap)
  52SHADOW_FIELD_RW(VM_ENTRY_EXCEPTION_ERROR_CODE, vm_entry_exception_error_code)
  53SHADOW_FIELD_RW(VM_ENTRY_INTR_INFO_FIELD, vm_entry_intr_info_field)
  54SHADOW_FIELD_RW(VM_ENTRY_INSTRUCTION_LEN, vm_entry_instruction_len)
  55SHADOW_FIELD_RW(TPR_THRESHOLD, tpr_threshold)
  56SHADOW_FIELD_RW(GUEST_INTERRUPTIBILITY_INFO, guest_interruptibility_info)
  57SHADOW_FIELD_RW(VMX_PREEMPTION_TIMER_VALUE, vmx_preemption_timer_value)
  58
  59/* Natural width */
  60SHADOW_FIELD_RO(EXIT_QUALIFICATION, exit_qualification)
  61SHADOW_FIELD_RO(GUEST_LINEAR_ADDRESS, guest_linear_address)
  62SHADOW_FIELD_RW(GUEST_RIP, guest_rip)
  63SHADOW_FIELD_RW(GUEST_RSP, guest_rsp)
  64SHADOW_FIELD_RW(GUEST_CR0, guest_cr0)
  65SHADOW_FIELD_RW(GUEST_CR3, guest_cr3)
  66SHADOW_FIELD_RW(GUEST_CR4, guest_cr4)
  67SHADOW_FIELD_RW(GUEST_RFLAGS, guest_rflags)
  68SHADOW_FIELD_RW(CR0_GUEST_HOST_MASK, cr0_guest_host_mask)
  69SHADOW_FIELD_RW(CR0_READ_SHADOW, cr0_read_shadow)
  70SHADOW_FIELD_RW(CR4_READ_SHADOW, cr4_read_shadow)
  71SHADOW_FIELD_RW(HOST_FS_BASE, host_fs_base)
  72SHADOW_FIELD_RW(HOST_GS_BASE, host_gs_base)
  73
  74/* 64-bit */
  75SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS, guest_physical_address)
  76SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS_HIGH, guest_physical_address)
  77
  78#undef SHADOW_FIELD_RO
  79#undef SHADOW_FIELD_RW
  80