SevSnpMsr.h

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#ifndef SEV_SNP_MSR_H_
#define SEV_SNP_MSR_H_
 
#define MSR_SEV_ES_GHCB  0xc0010130
 
typedef union {
  struct {
    UINT32    Function  : 12;
    UINT32    Reserved1 : 20;
    UINT32    Reserved2 : 32;
  } GhcbInfo;
 
  struct {
    UINT8     Reserved[3];
    UINT8     SevEncryptionBitPos;
    UINT16    SevEsProtocolMin;
    UINT16    SevEsProtocolMax;
  } GhcbProtocol;
 
  struct {
    UINT32    Function      : 12;
    UINT32    ReasonCodeSet : 4;
    UINT32    ReasonCode    : 8;
    UINT32    Reserved1     : 8;
    UINT32    Reserved2     : 32;
  } GhcbTerminate;
 
  struct {
    UINT64    Function : 12;
    UINT64    Features : 52;
  } GhcbHypervisorFeatures;
 
  struct {
    UINT64    Function         : 12;
    UINT64    GuestFrameNumber : 52;
  } GhcbGpaRegister;
 
  struct {
    UINT64    Function         : 12;
    UINT64    GuestFrameNumber : 40;
    UINT64    Operation        : 4;
    UINT64    Reserved         : 8;
  } SnpPageStateChangeRequest;
 
  struct {
    UINT32    Function : 12;
    UINT32    Reserved : 20;
    UINT32    ErrorCode;
  } SnpPageStateChangeResponse;
 
  struct {
    UINT64    Function  : 12;
    UINT64    Reserved1 : 20;
    UINT64    Vmpl      : 8;
    UINT64    Reserved2 : 56;
  } SnpVmplRequest;
 
  struct {
    UINT32    Function : 12;
    UINT32    Reserved : 20;
    UINT32    ErrorCode;
  } SnpVmplResponse;
 
  VOID      *Ghcb;
 
  UINT64    GhcbPhysicalAddress;
 
  UINT64    Uint64;
} MSR_SEV_ES_GHCB_REGISTER;
 
#define GHCB_INFO_SEV_INFO                        1
#define GHCB_INFO_SEV_INFO_GET                    2
#define GHCB_INFO_CPUID_REQUEST                   4
#define GHCB_INFO_CPUID_RESPONSE                  5
#define GHCB_INFO_GHCB_GPA_REGISTER_REQUEST       18
#define GHCB_INFO_GHCB_GPA_REGISTER_RESPONSE      19
#define GHCB_INFO_SNP_PAGE_STATE_CHANGE_REQUEST   20
#define GHCB_INFO_SNP_PAGE_STATE_CHANGE_RESPONSE  21
#define GHCB_INFO_SNP_VMPL_REQUEST                22
#define GHCB_INFO_SNP_VMPL_RESPONSE               23
#define GHCB_HYPERVISOR_FEATURES_REQUEST          128
#define GHCB_HYPERVISOR_FEATURES_RESPONSE         129
#define GHCB_INFO_TERMINATE_REQUEST               256
 
#define GHCB_TERMINATE_GHCB           0
#define GHCB_TERMINATE_GHCB_GENERAL   0
#define GHCB_TERMINATE_GHCB_PROTOCOL  1
 
#define MSR_SEV_STATUS  0xc0010131
 
typedef union {
  struct {
    UINT32    SevBit              : 1;
 
    UINT32    SevEsBit            : 1;
 
    UINT32    SevSnpBit           : 1;
 
    UINT32    vTOM                : 1;
 
    UINT32    ReflectVC           : 1;
 
    UINT32    RestrictedInjection : 1;
 
    UINT32    AlternateInjection  : 1;
 
    UINT32    DebugVirtualization : 1;
 
    UINT32    PreventHostIBS      : 1;
 
    UINT32    SNPBTBIsolation     : 1;
 
    UINT32    VmplSSS             : 1;
 
    UINT32    SecureTsc           : 1;
 
    UINT32    VmgexitParameter    : 1;
 
    UINT32    PmcVirtualization   : 1;
 
    UINT32    IbsVirtualization   : 1;
 
    UINT32    Reserved1           : 1;
 
    UINT32    VmsaRegProt         : 1;
 
    UINT32    SmtProtection       : 1;
    UINT32    SecureAVIC          : 1;
 
    UINT32    Reserved2           : 4;
 
    UINT32    IbpbOnEntry         : 1;
 
    UINT32    Reserved3           : 8;
  } Bits;
  UINT32    Uint32;
  UINT64    Uint64;
} MSR_SEV_STATUS_REGISTER;
 
#endif