From: Jack Lange <jacklange@cs.pitt.edu>
Date: Mon, 5 Dec 2011 20:40:13 +0000 (-0500)
Subject: fix IDE layer to drop unhandled IO ops, instead of aborting execution This is necessa... 
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=1f0cbd22f1263a6083f0d5fc69f69f98db6006df;p=palacios.releases.git

fix IDE layer to drop unhandled IO ops, instead of aborting execution This is necessary for some buggy guest OSes
---

diff --git a/palacios/src/devices/ide.c b/palacios/src/devices/ide.c
index f5baf95..285e534 100644
--- a/palacios/src/devices/ide.c
+++ b/palacios/src/devices/ide.c
@@ -737,8 +737,8 @@ static int write_dma_port(struct guest_info * core, ushort_t port, void * src, u
 	    break;
 	}
 	default:
-	    PrintError("IDE: Invalid DMA Port (%s)\n", dma_port_to_str(port_offset));
-	    return -1;
+	    PrintError("IDE: Invalid DMA Port (%d) (%s)\n", port, dma_port_to_str(port_offset));
+	    break;
     }
 
     return length;
@@ -787,8 +787,8 @@ static int read_dma_port(struct guest_info * core, ushort_t port, void * dst, ui
 	    break;
 	}
 	default:
-	    PrintError("IDE: Invalid DMA Port (%s)\n", dma_port_to_str(port_offset));
-	    return -1;
+	    PrintError("IDE: Invalid DMA Port (%d) (%s)\n", port, dma_port_to_str(port_offset));
+	    break;
     }
 
     PrintDebug("\tval=%x (len=%d)\n", *(uint32_t *)dst, length);