diff options
Diffstat (limited to 'lib/efi_loader/efi_runtime.c')
| -rw-r--r-- | lib/efi_loader/efi_runtime.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index 4b3c843b2c..4be51335bc 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -18,6 +18,10 @@ /* For manual relocation support */ DECLARE_GLOBAL_DATA_PTR; +/* GUID of the runtime properties table */ +static const efi_guid_t efi_rt_properties_table_guid = + EFI_RT_PROPERTIES_TABLE_GUID; + struct efi_runtime_mmio_list { struct list_head link; void **ptr; @@ -94,9 +98,28 @@ static __efi_runtime_data efi_uintn_t efi_descriptor_size; * handle a good number of runtime callbacks */ +/** + * efi_init_runtime_supported() - create runtime properties table + * + * Create a configuration table specifying which services are available at + * runtime. + * + * Return: status code + */ efi_status_t efi_init_runtime_supported(void) { - u16 efi_runtime_services_supported = + efi_status_t ret; + struct efi_rt_properties_table *rt_table; + + ret = efi_allocate_pool(EFI_RUNTIME_SERVICES_DATA, + sizeof(struct efi_rt_properties_table), + (void **)&rt_table); + if (ret != EFI_SUCCESS) + return ret; + + rt_table->version = EFI_RT_PROPERTIES_TABLE_VERSION; + rt_table->length = sizeof(struct efi_rt_properties_table); + rt_table->runtime_services_supported = EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP | EFI_RT_SUPPORTED_CONVERT_POINTER; @@ -105,15 +128,12 @@ efi_status_t efi_init_runtime_supported(void) * as well as efi_runtime_services. */ #ifdef CONFIG_EFI_HAVE_RUNTIME_RESET - efi_runtime_services_supported |= EFI_RT_SUPPORTED_RESET_SYSTEM; + rt_table->runtime_services_supported |= EFI_RT_SUPPORTED_RESET_SYSTEM; #endif - return EFI_CALL(efi_set_variable(L"RuntimeServicesSupported", - &efi_global_variable_guid, - EFI_VARIABLE_BOOTSERVICE_ACCESS | - EFI_VARIABLE_RUNTIME_ACCESS, - sizeof(efi_runtime_services_supported), - &efi_runtime_services_supported)); + ret = efi_install_configuration_table(&efi_rt_properties_table_guid, + rt_table); + return ret; } /** |