X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_v3dec.c;h=5f98b9fd6104f57a5e88f692d792c6b5a778c231;hb=4701d2e8422bc6313ae237578d63d7f1bebd8946;hp=b862f96c49ed7e0cabe9fc509592d25fa98d9136;hpb=7a59334f2c211cfe59b0cc83e52aabe26da98464;p=palacios.git

diff --git a/palacios/src/palacios/vmm_v3dec.c b/palacios/src/palacios/vmm_v3dec.c
index b862f96..5f98b9f 100644
--- a/palacios/src/palacios/vmm_v3dec.c
+++ b/palacios/src/palacios/vmm_v3dec.c
@@ -123,6 +123,7 @@ int v3_decode(struct guest_info * core, addr_t instr_ptr, struct x86_instr * ins
 
 #ifdef V3_CONFIG_DEBUG_DECODER
     v3_print_instr(instr);
+    V3_Print("CS DB FLag=%x\n", core->segments.cs.db);
 #endif
 
     return 0;
@@ -153,8 +154,8 @@ static int parse_operands(struct guest_info * core, uint8_t * instr_ptr,
 	case AND_IMM2:	
 	case OR_IMM2:
   	case SUB_IMM2:
-	case XOR_IMM2: 
-	case MOV_IMM2:{
+	case XOR_IMM2:
+	case MOV_IMM2: {
 	    uint8_t reg_code = 0;
 
 	    ret = decode_rm_operand(core, instr_ptr, form, instr, &(instr->dst_operand), &reg_code);
@@ -176,6 +177,8 @@ static int parse_operands(struct guest_info * core, uint8_t * instr_ptr,
 		instr->src_operand.operand = *(uint16_t *)instr_ptr;
 	    } else if (operand_width == 4) {
 		instr->src_operand.operand = *(uint32_t *)instr_ptr;
+	    } else if (operand_width == 8) {
+		instr->src_operand.operand = *(sint32_t *)instr_ptr; // This is a special case for sign extended 64bit ops
 	    } else {
 		PrintError("Illegal operand width (%d)\n", operand_width);
 		return -1;