C++ (Cpp) locate_rsdp_in_area Beispiele

Beispiel #1

Datei: acpi.c Projekt: JimmyDurandWesolowski/xvisor-next

static virtual_addr_t __init find_root_system_descriptor(void)
{
    struct acpi_search_area *carea = &acpi_areas[0];
    virtual_addr_t area_map;
    virtual_addr_t rsdp_base = 0;
    virtual_size_t sz = 0;

    while (carea->area_name) {
        vmm_printf("Search for RSDP in %s... ", carea->area_name);

        sz = carea->phys_end - carea->phys_start;

        area_map = vmm_host_memmap(carea->phys_start, sz,
                                   VMM_MEMORY_FLAGS_NORMAL_NOCACHE);

        BUG_ON((void *)area_map == NULL);

        if ((rsdp_base
                = locate_rsdp_in_area(area_map, sz)) != 0) {
            vmm_printf("found.\n");
            break;
        }

        rsdp_base = 0;
        carea++;
        vmm_host_memunmap(area_map);
        vmm_printf("not found.\n");
    }

    if (likely(rsdp_base))
        vmm_printf("RSDP Base: 0x%x\n", rsdp_base);

    return rsdp_base;
}

Beispiel #2

Datei: acpi.c Projekt: bandwidthcrunch/xvisor

static virtual_addr_t find_root_system_descriptor(void)
{
    struct acpi_search_area *carea = &acpi_areas[0];
    virtual_addr_t area_map;
    virtual_addr_t rsdp_base = 0;

    while (carea->area_name) {
        area_map = vmm_host_iomap(carea->phys_start,
                                  (carea->phys_end
                                   - carea->phys_start));
        BUG_ON((void *)area_map == NULL,
               "Failed to map the %s for RSDP search.\n",
               carea->area_name);

        if ((rsdp_base
                = locate_rsdp_in_area(area_map,
                                      (carea->phys_end
                                       - carea->phys_start))) != 0) {
            break;
        }

        rsdp_base = 0;
        carea++;
        vmm_host_iounmap(area_map,
                         (carea->phys_end - carea->phys_start));
    }

    return rsdp_base;
}