Commit 5a866074 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

ehci: update irq on reset 



After clearing the status register we also have to update the irq line
status.  Otherwise a irq which happends to be pending at reset time
causes a interrupt storm.  And the guest can't stop as the status
register doesn't indicate any pending interrupt.

Both NetBSD and FreeBSD hang on shutdown because of that.

Cc: qemu-stable@nongnu.org
Reported-by: default avatarAndrey Korolyov <andrey@xdel.ru>
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Message-id: 1453203884-4125-1-git-send-email-kraxel@redhat.com
parent 49d925ce

hw/usb/hcd-ehci.c

+1 −0
Original line number Diff line number Diff line
@@ -866,6 +866,7 @@ void ehci_reset(void *opaque) 
    s->usbsts = USBSTS_HALT;

    s->usbsts_pending = 0;

    s->usbsts_frindex = 0;

    ehci_update_irq(s);



    s->astate = EST_INACTIVE;

    s->pstate = EST_INACTIVE;