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-rw-r--r--hw/char/spapr_vty.c18
-rw-r--r--hw/ppc/spapr.c4
2 files changed, 22 insertions, 0 deletions
diff --git a/hw/char/spapr_vty.c b/hw/char/spapr_vty.c
index 0fa416ca6b..6748334ded 100644
--- a/hw/char/spapr_vty.c
+++ b/hw/char/spapr_vty.c
@@ -58,6 +58,24 @@ static int vty_getchars(VIOsPAPRDevice *sdev, uint8_t *buf, int max)
 
     while ((n < max) && (dev->out != dev->in)) {
         buf[n++] = dev->buf[dev->out++ % VTERM_BUFSIZE];
+
+        /* PowerVM's vty implementation has a bug where it inserts a
+         * \0 after every \r going to the guest.  Existing guests have
+         * a workaround for this which removes every \0 immediately
+         * following a \r, so here we make ourselves bug-for-bug
+         * compatible, so that the guest won't drop a real \0-after-\r
+         * that happens to occur in a binary stream. */
+        if (buf[n - 1] == '\r') {
+            if (n < max) {
+                buf[n++] = '\0';
+            } else {
+                /* No room for the extra \0, roll back and try again
+                 * next time */
+                dev->out--;
+                n--;
+                break;
+            }
+        }
     }
 
     qemu_chr_fe_accept_input(&dev->chardev);
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 6285f7211f..4d0a84f3ec 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2663,6 +2663,10 @@ static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus,
              * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
              */
             unsigned id = 0x1000000 | (d->id << 16) | d->lun;
+            if (d->lun >= 256) {
+                /* Use the LUN "flat space addressing method" */
+                id |= 0x4000;
+            }
             return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev),
                                    (uint64_t)id << 32);
         } else if (usb) {