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ehci: trace guest bugs

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make qemu_queue_{cancel,reset} return the number of packets released,
so the caller can figure whenever there have been active packets even
though there shouldn't have been any.  Add tracepoint to log this.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-08-31 10:44:21 +02:00
parent 616789cde2
commit 5c514681ab
2 changed files with 21 additions and 6 deletions
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trace-events
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@ -263,6 +263,7 @@ usb_ehci_data(int rw, uint32_t cpage, uint32_t offset, uint32_t addr, uint32_t l
usb_ehci_queue_action(void *q, const char *action) "q %p: %s"
usb_ehci_packet_action(void *q, void *p, const char *action) "q %p p %p: %s"
usb_ehci_irq(uint32_t level, uint32_t frindex, uint32_t sts, uint32_t mask) "level %d, frindex 0x%04x, sts 0x%x, mask 0x%x"
usb_ehci_guest_bug(const char *reason) "%s"
# hw/usb/hcd-uhci.c
usb_uhci_reset(void) "=== RESET ==="