static CharDriverState* create_eventfd_chr_device(void * opaque, EventNotifier *n,
int vector)
{
/* create a event character device based on the passed eventfd */
IVShmemState *s = opaque;
CharDriverState * chr;
int eventfd = event_notifier_get_fd(n);
chr = qemu_chr_open_eventfd(eventfd);
if (chr == NULL) {
fprintf(stderr, "creating eventfd for eventfd %d failed\n", eventfd);
exit(-1);
}
/* if MSI is supported we need multiple interrupts */
if (ivshmem_has_feature(s, IVSHMEM_MSI)) {
s->eventfd_table[vector].pdev = &s->dev;
s->eventfd_table[vector].vector = vector;
qemu_chr_add_handlers(chr, ivshmem_can_receive, fake_irqfd,
ivshmem_event, &s->eventfd_table[vector]);
} else {
qemu_chr_add_handlers(chr, ivshmem_can_receive, ivshmem_receive,
ivshmem_event, s);
}
return chr;
}
static CharDriverState* create_eventfd_chr_device(void * opaque, EventNotifier *n,
int vector)
{
/* create a event character device based on the passed eventfd */
IVShmemState *s = opaque;
PCIDevice *pdev = PCI_DEVICE(s);
int eventfd = event_notifier_get_fd(n);
CharDriverState *chr;
s->msi_vectors[vector].pdev = pdev;
chr = qemu_chr_open_eventfd(eventfd);
if (chr == NULL) {
error_report("creating chardriver for eventfd %d failed", eventfd);
return NULL;
}
qemu_chr_fe_claim_no_fail(chr);
/* if MSI is supported we need multiple interrupts */
if (ivshmem_has_feature(s, IVSHMEM_MSI)) {
s->msi_vectors[vector].pdev = PCI_DEVICE(s);
qemu_chr_add_handlers(chr, ivshmem_can_receive, fake_irqfd,
ivshmem_event, &s->msi_vectors[vector]);
} else {
qemu_chr_add_handlers(chr, ivshmem_can_receive, ivshmem_receive,
ivshmem_event, s);
}
return chr;
}