X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Finclude%2Fpalacios%2Fvmm_decoder.h;h=b1e87c2369e720427068782a9cfe658a0369e259;hb=7ec6a6ee7f4a472587d49ddca3a9f5b587371fd5;hp=767fe2520e3a24b18a8bf7a355b04f099efa80cd;hpb=24a5ce6f1a5f692c6f25bb14068c1a8549a16ac2;p=palacios.git

diff --git a/palacios/include/palacios/vmm_decoder.h b/palacios/include/palacios/vmm_decoder.h
index 767fe25..b1e87c2 100644
--- a/palacios/include/palacios/vmm_decoder.h
+++ b/palacios/include/palacios/vmm_decoder.h
@@ -204,23 +204,28 @@ static inline v3_reg_t get_gpr_mask(struct guest_info * info) {
 
 static inline addr_t get_addr_linear(struct guest_info * info, addr_t addr, struct v3_segment * seg) {
     switch (info->cpu_mode) {
-	case REAL:
-	    // It appears that the segment values are computed and cached in the vmcb structure 
-	    // We Need to check this for Intel
-	    /*   return addr + (seg->selector << 4);
-		 break;*/
-
+	case REAL: {
+	    return ((seg->selector & 0xffff) << 4) + (addr & 0xffff);
+	    break;
+	}
 	case PROTECTED:
 	case PROTECTED_PAE:
 	case LONG_32_COMPAT:
 	    return addr + seg->base;
 	    break;
 
-	case LONG:
+	case LONG: {
+	    uint64_t seg_base = 0;
+
 	    // In long mode the segment bases are disregarded (forced to 0), unless using 
 	    // FS or GS, then the base addresses are added
-	    return addr + seg->base;
 
+	    if (seg) {
+		seg_base = seg->base;
+	    }
+
+	    return addr + seg_base;
+	}
 	case LONG_16_COMPAT:
 	default:
 	    PrintError("Unsupported CPU Mode: %d\n", info->cpu_mode);