C++ (Cpp) kvm_add_routing_entry示例

示例#1

文件： msix.c 项目： gvsurenderreddy/vxt

static int kvm_msix_add(PCIDevice *dev, unsigned vector)
{
    struct kvm_irq_routing_entry *entry = dev->msix_irq_entries + vector;
    int r;

    r = kvm_get_irq_route_gsi(kvm_context);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_get_irq_route_gsi failed: %s\n", __func__, strerror(-r));
        return r;
    }
    entry->gsi = r;
    kvm_msix_routing_entry(dev, vector, entry);
    r = kvm_add_routing_entry(kvm_context, entry);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_add_routing_entry failed: %s\n", __func__, strerror(-r));
        return r;
    }

    r = kvm_commit_irq_routes(kvm_context);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_commit_irq_routes failed: %s\n", __func__, strerror(-r));
        return r;
    }
    return 0;
}

示例#2

文件： msix.c 项目： aidanshribman/qemu-kvm

static int kvm_msix_add(PCIDevice *dev, unsigned vector)
{
    struct kvm_irq_routing_entry *entry = dev->msix_irq_entries + vector;
    int r;

    if (!kvm_has_gsi_routing(kvm_context)) {
        fprintf(stderr, "Warning: no MSI-X support found. "
                "At least kernel 2.6.30 is required for MSI-X support.\n"
               );
        return -EOPNOTSUPP;
    }

    r = kvm_get_irq_route_gsi(kvm_context);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_get_irq_route_gsi failed: %s\n", __func__, strerror(-r));
        return r;
    }
    entry->gsi = r;
    kvm_msix_routing_entry(dev, vector, entry);
    r = kvm_add_routing_entry(kvm_context, entry);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_add_routing_entry failed: %s\n", __func__, strerror(-r));
        return r;
    }

    r = kvm_commit_irq_routes(kvm_context);
    if (r < 0) {
        fprintf(stderr, "%s: kvm_commit_irq_routes failed: %s\n", __func__, strerror(-r));
        return r;
    }
    return 0;
}