diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/usb/hcd-ehci.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index ab00268..1b50601 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -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; @@ -1405,21 +1406,23 @@ static int ehci_process_itd(EHCIState *ehci, if (itd->transact[i] & ITD_XACT_ACTIVE) { pg = get_field(itd->transact[i], ITD_XACT_PGSEL); off = itd->transact[i] & ITD_XACT_OFFSET_MASK; - ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); - ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK); len = get_field(itd->transact[i], ITD_XACT_LENGTH); if (len > max * mult) { len = max * mult; } - - if (len > BUFF_SIZE) { + if (len > BUFF_SIZE || pg > 6) { return -1; } + ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); qemu_sglist_init(&ehci->isgl, ehci->device, 2, ehci->as); if (off + len > 4096) { /* transfer crosses page border */ + if (pg == 6) { + return -1; /* avoid page pg + 1 */ + } + ptr2 = (itd->bufptr[pg + 1] & ITD_BUFPTR_MASK); uint32_t len2 = off + len - 4096; uint32_t len1 = len - len2; qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); |