added full io support

[palacios.git] / palacios / include / geekos / vmm_emulate.h

diff --git a/palacios/include/geekos/vmm_emulate.h b/palacios/include/geekos/vmm_emulate.h
index 5c0c9c5..4b843cc 100644 (file)
--- a/palacios/include/geekos/vmm_emulate.h
+++ b/palacios/include/geekos/vmm_emulate.h
@@ -107,6 +107,23 @@ MAKE_INSTR(LMSW,   3, 0x0f, 0x01, 0x00);
 MAKE_INSTR(SMSW,   3, 0x0f, 0x01, 0x00);
 
 
+static const uchar_t PREFIX_LOCK = 0xF0;
+static const uchar_t PREFIX_REPNE = 0xF2;
+static const uchar_t PREFIX_REPNZ = 0xF2;
+static const uchar_t PREFIX_REP = 0xF3;
+static const uchar_t PREFIX_REPE = 0xF3;
+static const uchar_t PREFIX_REPZ = 0xF3;
+static const uchar_t PREFIX_CS_OVERRIDE = 0x2E;
+static const uchar_t PREFIX_SS_OVERRIDE = 0x36;
+static const uchar_t PREFIX_DS_OVERRIDE = 0x3E;
+static const uchar_t PREFIX_ES_OVERRIDE = 0x26;
+static const uchar_t PREFIX_FS_OVERRIDE = 0x64;
+static const uchar_t PREFIX_GS_OVERRIDE = 0x65;
+static const uchar_t PREFIX_BR_NOT_TAKEN = 0x2E;
+static const uchar_t PREFIX_BR_TAKEN = 0x3E;
+static const uchar_t PREFIX_OP_SIZE = 0x66;
+static const uchar_t PREFIX_ADDR_SIZE = 0x67;
+
 
 static inline int is_prefix_byte(char byte) {
   switch (byte) {
@@ -131,6 +148,23 @@ static inline int is_prefix_byte(char byte) {
   }
 }
 
+
+
+static inline addr_t get_rip_linear(struct guest_info * info, addr_t rip, addr_t cs_base) {
+  switch (info->cpu_mode) {
+  case REAL:
+    return rip + (cs_base << 4);
+    break;
+  case PROTECTED:
+  case PROTECTED_PG:
+    return rip + cs_base;
+    break;
+  default:
+    return 0;
+  }
+}
+
+
 typedef enum {INVALID_ADDR_TYPE, REG, DISP0, DISP8, DISP16, DISP32} modrm_mode_t;
 typedef enum {INVALID_REG_SIZE, REG64, REG32, REG16, REG8} reg_size_t;
 typedef enum {INVALID_OPERAND, REG_OPERAND, MEM_OPERAND} operand_type_t;