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Diffstat (limited to 'MdeModulePkg/Universal/EbcDxe/EbcExecute.h')
| -rw-r--r-- | MdeModulePkg/Universal/EbcDxe/EbcExecute.h | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcExecute.h b/MdeModulePkg/Universal/EbcDxe/EbcExecute.h new file mode 100644 index 0000000000..b1926ee975 --- /dev/null +++ b/MdeModulePkg/Universal/EbcDxe/EbcExecute.h @@ -0,0 +1,323 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ EbcExecute.h
+
+Abstract:
+
+ Header file for Virtual Machine support. Contains EBC defines that can
+ be of use to a disassembler for the most part. Also provides function
+ prototypes for VM functions.
+
+--*/
+
+#ifndef _EBC_EXECUTE_H_
+#define _EBC_EXECUTE_H_
+
+//
+// VM major/minor version
+//
+#define VM_MAJOR_VERSION 1
+#define VM_MINOR_VERSION 0
+
+//
+// Macros to check and set alignment
+//
+#define ASSERT_ALIGNED(addr, size) ASSERT (!((UINT32) (addr) & (size - 1)))
+#define IS_ALIGNED(addr, size) !((UINT32) (addr) & (size - 1))
+
+//
+// Define a macro to get the operand. Then we can change it to be either a
+// direct read or have it call a function to read memory.
+//
+#define GETOPERANDS(pVM) (UINT8) (*(UINT8 *) (pVM->Ip + 1))
+#define GETOPCODE(pVM) (UINT8) (*(UINT8 *) pVM->Ip)
+
+//
+// Bit masks for opcode encodings
+//
+#define OPCODE_M_OPCODE 0x3F // bits of interest for first level decode
+#define OPCODE_M_IMMDATA 0x80
+#define OPCODE_M_IMMDATA64 0x40
+#define OPCODE_M_64BIT 0x40 // for CMP
+#define OPCODE_M_RELADDR 0x10 // for CALL instruction
+#define OPCODE_M_CMPI32_DATA 0x80 // for CMPI
+#define OPCODE_M_CMPI64 0x40 // for CMPI 32 or 64 bit comparison
+#define OPERAND_M_MOVIN_N 0x80
+#define OPERAND_M_CMPI_INDEX 0x10
+
+//
+// Masks for instructions that encode presence of indexes for operand1 and/or
+// operand2.
+//
+#define OPCODE_M_IMMED_OP1 0x80
+#define OPCODE_M_IMMED_OP2 0x40
+
+//
+// Bit masks for operand encodings
+//
+#define OPERAND_M_INDIRECT1 0x08
+#define OPERAND_M_INDIRECT2 0x80
+#define OPERAND_M_OP1 0x07
+#define OPERAND_M_OP2 0x70
+
+//
+// Masks for data manipulation instructions
+//
+#define DATAMANIP_M_64 0x40 // 64-bit width operation
+#define DATAMANIP_M_IMMDATA 0x80
+
+//
+// For MOV instructions, need a mask for the opcode when immediate
+// data applies to R2.
+//
+#define OPCODE_M_IMMED_OP2 0x40
+
+//
+// The MOVI/MOVIn instructions use bit 6 of operands byte to indicate
+// if an index is present. Then bits 4 and 5 are used to indicate the width
+// of the move.
+//
+#define MOVI_M_IMMDATA 0x40
+#define MOVI_M_DATAWIDTH 0xC0
+#define MOVI_DATAWIDTH16 0x40
+#define MOVI_DATAWIDTH32 0x80
+#define MOVI_DATAWIDTH64 0xC0
+#define MOVI_M_MOVEWIDTH 0x30
+#define MOVI_MOVEWIDTH8 0x00
+#define MOVI_MOVEWIDTH16 0x10
+#define MOVI_MOVEWIDTH32 0x20
+#define MOVI_MOVEWIDTH64 0x30
+
+//
+// Masks for CALL instruction encodings
+//
+#define OPERAND_M_RELATIVE_ADDR 0x10
+#define OPERAND_M_NATIVE_CALL 0x20
+
+//
+// Masks for decoding push/pop instructions
+//
+#define PUSHPOP_M_IMMDATA 0x80 // opcode bit indicating immediate data
+#define PUSHPOP_M_64 0x40 // opcode bit indicating 64-bit operation
+//
+// Mask for operand of JMP instruction
+//
+#define JMP_M_RELATIVE 0x10
+#define JMP_M_CONDITIONAL 0x80
+#define JMP_M_CS 0x40
+
+//
+// Macros to determine if a given operand is indirect
+//
+#define OPERAND1_INDIRECT(op) ((op) & OPERAND_M_INDIRECT1)
+#define OPERAND2_INDIRECT(op) ((op) & OPERAND_M_INDIRECT2)
+
+//
+// Macros to extract the operands from second byte of instructions
+//
+#define OPERAND1_REGNUM(op) ((op) & OPERAND_M_OP1)
+#define OPERAND2_REGNUM(op) (((op) & OPERAND_M_OP2) >> 4)
+
+#define OPERAND1_CHAR(op) ('0' + OPERAND1_REGNUM (op))
+#define OPERAND2_CHAR(op) ('0' + OPERAND2_REGNUM (op))
+
+#define OPERAND1_REGDATA(pvm, op) pvm->R[OPERAND1_REGNUM (op)]
+#define OPERAND2_REGDATA(pvm, op) pvm->R[OPERAND2_REGNUM (op)]
+
+//
+// Condition masks usually for byte 1 encodings of code
+//
+#define CONDITION_M_CONDITIONAL 0x80
+#define CONDITION_M_CS 0x40
+
+//
+// Bits in the VM->StopFlags field
+//
+#define STOPFLAG_APP_DONE 0x0001
+#define STOPFLAG_BREAKPOINT 0x0002
+#define STOPFLAG_INVALID_BREAK 0x0004
+#define STOPFLAG_BREAK_ON_CALLEX 0x0008
+
+//
+// Masks for working with the VM flags register
+//
+#define VMFLAGS_CC 0x0001 // condition flag
+#define VMFLAGS_STEP 0x0002 // step instruction mode
+#define VMFLAGS_ALL_VALID (VMFLAGS_CC | VMFLAGS_STEP)
+
+//
+// Macros for operating on the VM flags register
+//
+#define VMFLAG_SET(pVM, Flag) (pVM->Flags |= (Flag))
+#define VMFLAG_ISSET(pVM, Flag) ((pVM->Flags & (Flag)) ? 1 : 0)
+#define VMFLAG_CLEAR(pVM, Flag) (pVM->Flags &= ~(Flag))
+
+//
+// Debug macro
+//
+#define EBCMSG(s) gST->ConOut->OutputString (gST->ConOut, s)
+
+//
+// Define OPCODES
+//
+#define OPCODE_BREAK 0x00
+#define OPCODE_JMP 0x01
+#define OPCODE_JMP8 0x02
+#define OPCODE_CALL 0x03
+#define OPCODE_RET 0x04
+#define OPCODE_CMPEQ 0x05
+#define OPCODE_CMPLTE 0x06
+#define OPCODE_CMPGTE 0x07
+#define OPCODE_CMPULTE 0x08
+#define OPCODE_CMPUGTE 0x09
+#define OPCODE_NOT 0x0A
+#define OPCODE_NEG 0x0B
+#define OPCODE_ADD 0x0C
+#define OPCODE_SUB 0x0D
+#define OPCODE_MUL 0x0E
+#define OPCODE_MULU 0x0F
+#define OPCODE_DIV 0x10
+#define OPCODE_DIVU 0x11
+#define OPCODE_MOD 0x12
+#define OPCODE_MODU 0x13
+#define OPCODE_AND 0x14
+#define OPCODE_OR 0x15
+#define OPCODE_XOR 0x16
+#define OPCODE_SHL 0x17
+#define OPCODE_SHR 0x18
+#define OPCODE_ASHR 0x19
+#define OPCODE_EXTNDB 0x1A
+#define OPCODE_EXTNDW 0x1B
+#define OPCODE_EXTNDD 0x1C
+#define OPCODE_MOVBW 0x1D
+#define OPCODE_MOVWW 0x1E
+#define OPCODE_MOVDW 0x1F
+#define OPCODE_MOVQW 0x20
+#define OPCODE_MOVBD 0x21
+#define OPCODE_MOVWD 0x22
+#define OPCODE_MOVDD 0x23
+#define OPCODE_MOVQD 0x24
+#define OPCODE_MOVSNW 0x25 // Move signed natural with word index
+#define OPCODE_MOVSND 0x26 // Move signed natural with dword index
+//
+// #define OPCODE_27 0x27
+//
+#define OPCODE_MOVQQ 0x28 // Does this go away?
+#define OPCODE_LOADSP 0x29
+#define OPCODE_STORESP 0x2A
+#define OPCODE_PUSH 0x2B
+#define OPCODE_POP 0x2C
+#define OPCODE_CMPIEQ 0x2D
+#define OPCODE_CMPILTE 0x2E
+#define OPCODE_CMPIGTE 0x2F
+#define OPCODE_CMPIULTE 0x30
+#define OPCODE_CMPIUGTE 0x31
+#define OPCODE_MOVNW 0x32
+#define OPCODE_MOVND 0x33
+//
+// #define OPCODE_34 0x34
+//
+#define OPCODE_PUSHN 0x35
+#define OPCODE_POPN 0x36
+#define OPCODE_MOVI 0x37
+#define OPCODE_MOVIN 0x38
+#define OPCODE_MOVREL 0x39
+
+EFI_STATUS
+EbcExecute (
+ IN VM_CONTEXT *VmPtr
+ )
+;
+
+
+
+UINT64
+GetVmVersion (
+ VOID
+ )
+;
+
+EFI_STATUS
+VmWriteMemN (
+ IN VM_CONTEXT *VmPtr,
+ IN UINTN Addr,
+ IN UINTN Data
+ )
+;
+
+EFI_STATUS
+VmWriteMem64 (
+ IN VM_CONTEXT *VmPtr,
+ UINTN Addr,
+ IN UINT64 Data
+ )
+;
+
+//
+// Define a protocol for an EBC VM test interface.
+//
+#define EFI_EBC_VM_TEST_PROTOCOL_GUID \
+ { \
+ 0xAAEACCFDL, 0xF27B, 0x4C17, { 0xB6, 0x10, 0x75, 0xCA, 0x1F, 0x2D, 0xFB, 0x52 } \
+ }
+
+//
+// Define for forward reference.
+//
+typedef struct _EFI_EBC_VM_TEST_PROTOCOL EFI_EBC_VM_TEST_PROTOCOL;
+
+typedef
+EFI_STATUS
+(*EBC_VM_TEST_EXECUTE) (
+ IN EFI_EBC_VM_TEST_PROTOCOL * This,
+ IN VM_CONTEXT * VmPtr,
+ IN OUT UINTN *InstructionCount
+ );
+
+typedef
+EFI_STATUS
+(*EBC_VM_TEST_ASM) (
+ IN EFI_EBC_VM_TEST_PROTOCOL * This,
+ IN CHAR16 *AsmText,
+ IN OUT INT8 *Buffer,
+ IN OUT UINTN *BufferLen
+ );
+
+typedef
+EFI_STATUS
+(*EBC_VM_TEST_DASM) (
+ IN EFI_EBC_VM_TEST_PROTOCOL * This,
+ IN OUT CHAR16 *AsmText,
+ IN OUT INT8 *Buffer,
+ IN OUT UINTN *Len
+ );
+
+//
+// Prototype for the actual EBC test protocol interface
+//
+struct _EFI_EBC_VM_TEST_PROTOCOL {
+ EBC_VM_TEST_EXECUTE Execute;
+ EBC_VM_TEST_ASM Assemble;
+ EBC_VM_TEST_DASM Disassemble;
+};
+
+EFI_STATUS
+EbcExecuteInstructions (
+ IN EFI_EBC_VM_TEST_PROTOCOL *This,
+ IN VM_CONTEXT *VmPtr,
+ IN OUT UINTN *InstructionCount
+ )
+;
+
+#endif // ifndef _EBC_EXECUTE_H_
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