[2/8] xhci: decouple EV_QUEUE from TD_QUEUE
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Message ID 1474965172-30321-3-git-send-email-kraxel@redhat.com
State New
Headers show

Commit Message

Gerd Hoffmann Sept. 27, 2016, 8:32 a.m. UTC
EV_QUEUE must not change because an array of that size is part of live
migration data.  Hard-code current value there, so we can touch TD_QUEUE
without breaking live migration.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-xhci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 726435c..15cac56 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -49,7 +49,7 @@ 
 #define TD_QUEUE 24
 
 /* Very pessimistic, let's hope it's enough for all cases */
-#define EV_QUEUE (((3*TD_QUEUE)+16)*MAXSLOTS)
+#define EV_QUEUE (((3 * 24) + 16) * MAXSLOTS)
 /* Do not deliver ER Full events. NEC's driver does some things not bound
  * to the specs when it gets them */
 #define ER_FULL_HACK