From 9dc252544b41a626bbdf436a3e6f229fa0014143 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 3 Sep 2012 10:22:16 +0200 Subject: [PATCH] ehci: Add some additional ehci_trace_guest_bug() calls Signed-off-by: Hans de Goede Signed-off-by: Gerd Hoffmann (cherry picked from commit 3a8ca08e01ea4baafff2a513655008cdd00feebf) Signed-off-by: Michael Roth --- hw/usb/hcd-ehci.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 398f5e0..5a88268 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -820,12 +820,16 @@ static int ehci_reset_queue(EHCIQueue *q) return packets; } -static void ehci_free_queue(EHCIQueue *q) +static void ehci_free_queue(EHCIQueue *q, const char *warn) { EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; + int cancelled; trace_usb_ehci_queue_action(q, "free"); - ehci_cancel_queue(q); + cancelled = ehci_cancel_queue(q); + if (warn && cancelled > 0) { + ehci_trace_guest_bug(q->ehci, warn); + } QTAILQ_REMOVE(head, q, next); g_free(q); } @@ -847,6 +851,7 @@ static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr, static void ehci_queues_rip_unused(EHCIState *ehci, int async, int flush) { EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; + const char *warn = (async && !flush) ? "guest unlinked busy QH" : NULL; uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; EHCIQueue *q, *tmp; @@ -859,7 +864,7 @@ static void ehci_queues_rip_unused(EHCIState *ehci, int async, int flush) if (!flush && ehci->last_run_ns < q->ts + maxage) { continue; } - ehci_free_queue(q); + ehci_free_queue(q, warn); } } @@ -872,17 +877,18 @@ static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) if (q->dev != dev) { continue; } - ehci_free_queue(q); + ehci_free_queue(q, NULL); } } static void ehci_queues_rip_all(EHCIState *ehci, int async) { EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; + const char *warn = async ? "guest stopped busy async schedule" : NULL; EHCIQueue *q, *tmp; QTAILQ_FOREACH_SAFE(q, head, next, tmp) { - ehci_free_queue(q); + ehci_free_queue(q, warn); } } @@ -1549,7 +1555,8 @@ static int ehci_execute(EHCIPacket *p, const char *action) p->tbytes = (p->qtd.token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH; if (p->tbytes > BUFF_SIZE) { - fprintf(stderr, "Request for more bytes than allowed\n"); + ehci_trace_guest_bug(p->queue->ehci, + "guest requested more bytes than allowed"); return USB_RET_PROCERR; }