C++ (Cpp) xenstore_read_fe_uint64 Examples

Example #1

File: xenfb.c Project: CTU-IIG/qemu

static int common_bind(struct common *c)
{
    uint64_t val;
    xen_pfn_t mfn;

    if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &val) == -1)
        return -1;
    mfn = (xen_pfn_t)val;
    assert(val == mfn);

    if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1)
        return -1;

    c->page = xenforeignmemory_map(xen_fmem, c->xendev.dom,
                                   PROT_READ | PROT_WRITE, 1, &mfn, NULL);
    if (c->page == NULL)
        return -1;

    xen_be_bind_evtchn(&c->xendev);
    xen_pv_printf(&c->xendev, 1,
                  "ring mfn %"PRI_xen_pfn", remote-port %d, local-port %d\n",
                  mfn, c->xendev.remote_port, c->xendev.local_port);

    return 0;
}

Example #2

File: xenfb.c Project: 32bitmicro/riscv-qemu

static int common_bind(struct common *c)
{
    uint64_t mfn;

    if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &mfn) == -1)
	return -1;
    assert(mfn == (xen_pfn_t)mfn);

    if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1)
	return -1;

    c->page = xc_map_foreign_range(xen_xc, c->xendev.dom,
				   XC_PAGE_SIZE,
				   PROT_READ | PROT_WRITE, mfn);
    if (c->page == NULL)
	return -1;

    xen_be_bind_evtchn(&c->xendev);
    xen_be_printf(&c->xendev, 1, "ring mfn %"PRIx64", remote-port %d, local-port %d\n",
		  mfn, c->xendev.remote_port, c->xendev.local_port);

    return 0;
}