C++ (Cpp) domain_pirq_to_emuirq Examples

Example #1

File: physdev.c Project: YongMan/Xen-4.3.1

int physdev_unmap_pirq(domid_t domid, int pirq)
{
    struct domain *d;
    int ret;

    d = rcu_lock_domain_by_any_id(domid);
    if ( d == NULL )
        return -ESRCH;

    ret = xsm_unmap_domain_pirq(XSM_TARGET, d);
    if ( ret )
        goto free_domain;

    if ( is_hvm_domain(d) )
    {
        spin_lock(&d->event_lock);
        if ( domain_pirq_to_emuirq(d, pirq) != IRQ_UNBOUND )
            ret = unmap_domain_pirq_emuirq(d, pirq);
        spin_unlock(&d->event_lock);
        if ( domid == DOMID_SELF || ret )
            goto free_domain;
    }

    spin_lock(&pcidevs_lock);
    spin_lock(&d->event_lock);
    ret = unmap_domain_pirq(d, pirq);
    spin_unlock(&d->event_lock);
    spin_unlock(&pcidevs_lock);

 free_domain:
    rcu_unlock_domain(d);
    return ret;
}

Example #2

File: physdev.c Project: changliwei/suse_xen

static int physdev_unmap_pirq(struct physdev_unmap_pirq *unmap)
{
    struct domain *d;
    int ret;

    ret = rcu_lock_target_domain_by_id(unmap->domid, &d);
    if ( ret )
        return ret;

    if ( is_hvm_domain(d) )
    {
        spin_lock(&d->event_lock);
        if ( domain_pirq_to_emuirq(d, unmap->pirq) != IRQ_UNBOUND )
            ret = unmap_domain_pirq_emuirq(d, unmap->pirq);
        spin_unlock(&d->event_lock);
        if ( unmap->domid == DOMID_SELF || ret )
            goto free_domain;
    }

    ret = -EPERM;
    if ( !IS_PRIV_FOR(current->domain, d) )
        goto free_domain;

    spin_lock(&pcidevs_lock);
    spin_lock(&d->event_lock);
    ret = unmap_domain_pirq(d, unmap->pirq);
    spin_unlock(&d->event_lock);
    spin_unlock(&pcidevs_lock);

 free_domain:
    rcu_unlock_domain(d);
    return ret;
}