IDE/ATAPI bug fix - allow sense and other requests to read past

[palacios.git] / palacios / src / devices / ide.c

diff --git a/palacios/src/devices/ide.c b/palacios/src/devices/ide.c
index bf842e9..e9a0dd1 100644 (file)
--- a/palacios/src/devices/ide.c
+++ b/palacios/src/devices/ide.c
@@ -1082,7 +1082,7 @@ static int read_hd_data(uint8_t * dst, uint64_t length, struct ide_internal * id
               drive->transfer_index, drive->transfer_length, 
               drive->hd_state.cur_sector_num);
 
-    if (drive->transfer_index >= drive->transfer_length) {
+    if (drive->transfer_index >= drive->transfer_length && drive->transfer_index>=DATA_BUFFER_SIZE) {
        PrintError(VM_NONE, VCORE_NONE, "Buffer overrun... (xfer_len=%llu) (cur_idx=%llu) (post_idx=%llu)\n",
                   drive->transfer_length, drive->transfer_index,
                   drive->transfer_index + length);
@@ -1224,7 +1224,7 @@ static int read_cd_data(uint8_t * dst, uint64_t length, struct ide_internal * id
 
     
 
-    if (drive->transfer_index >= drive->transfer_length) {
+    if (drive->transfer_index >= drive->transfer_length && drive->transfer_index>=DATA_BUFFER_SIZE) {
        PrintError(VM_NONE, VCORE_NONE, "Buffer Overrun... (xfer_len=%llu) (cur_idx=%llu) (post_idx=%llu)\n", 
                   drive->transfer_length, drive->transfer_index, 
                   drive->transfer_index + length);