struct efi_time *time,
struct efi_time_cap *capabilities)
{
-#ifdef CONFIG_DM_RTC
+#ifdef CONFIG_EFI_GET_TIME
efi_status_t ret = EFI_SUCCESS;
- int r;
struct rtc_time tm;
struct udevice *dev;
ret = EFI_INVALID_PARAMETER;
goto out;
}
-
- r = uclass_get_device(UCLASS_RTC, 0, &dev);
- if (!r)
- r = dm_rtc_get(dev, &tm);
- if (r) {
+ if (uclass_get_device(UCLASS_RTC, 0, &dev) ||
+ dm_rtc_get(dev, &tm)) {
+ ret = EFI_UNSUPPORTED;
+ goto out;
+ }
+ if (dm_rtc_get(dev, &tm)) {
ret = EFI_DEVICE_ERROR;
goto out;
}
time->hour = tm.tm_hour;
time->minute = tm.tm_min;
time->second = tm.tm_sec;
- time->daylight = EFI_TIME_ADJUST_DAYLIGHT;
- if (tm.tm_isdst > 0)
- time->daylight |= EFI_TIME_IN_DAYLIGHT;
+ if (tm.tm_isdst)
+ time->daylight =
+ EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT;
time->timezone = EFI_UNSPECIFIED_TIMEZONE;
if (capabilities) {
return EFI_EXIT(ret);
#else
EFI_ENTRY("%p %p", time, capabilities);
- return EFI_EXIT(EFI_DEVICE_ERROR);
+ return EFI_EXIT(EFI_UNSUPPORTED);
#endif
}
+#ifdef CONFIG_EFI_SET_TIME
+
+/**
+ * efi_validate_time() - checks if timestamp is valid
+ *
+ * @time: timestamp to validate
+ * Returns: 0 if timestamp is valid, 1 otherwise
+ */
+static int efi_validate_time(struct efi_time *time)
+{
+ return (!time ||
+ time->year < 1900 || time->year > 9999 ||
+ !time->month || time->month > 12 || !time->day ||
+ time->day > rtc_month_days(time->month - 1, time->year) ||
+ time->hour > 23 || time->minute > 59 || time->second > 59 ||
+ time->nanosecond > 999999999 ||
+ time->daylight &
+ ~(EFI_TIME_IN_DAYLIGHT | EFI_TIME_ADJUST_DAYLIGHT) ||
+ ((time->timezone < -1440 || time->timezone > 1440) &&
+ time->timezone != EFI_UNSPECIFIED_TIMEZONE));
+}
+
+#endif
+
+/**
+ * efi_set_time_boottime() - set current time
+ *
+ * This function implements the SetTime() runtime service before
+ * SetVirtualAddressMap() is called.
+ *
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @time: pointer to structure to with current time
+ * Returns: status code
+ */
+static efi_status_t EFIAPI efi_set_time_boottime(struct efi_time *time)
+{
+#ifdef CONFIG_EFI_SET_TIME
+ efi_status_t ret = EFI_SUCCESS;
+ struct rtc_time tm;
+ struct udevice *dev;
+
+ EFI_ENTRY("%p", time);
+
+ if (efi_validate_time(time)) {
+ ret = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+
+ if (uclass_get_device(UCLASS_RTC, 0, &dev)) {
+ ret = EFI_UNSUPPORTED;
+ goto out;
+ }
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_year = time->year;
+ tm.tm_mon = time->month;
+ tm.tm_mday = time->day;
+ tm.tm_hour = time->hour;
+ tm.tm_min = time->minute;
+ tm.tm_sec = time->second;
+ tm.tm_isdst = time->daylight ==
+ (EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT);
+ /* Calculate day of week */
+ rtc_calc_weekday(&tm);
+
+ if (dm_rtc_set(dev, &tm))
+ ret = EFI_DEVICE_ERROR;
+out:
+ return EFI_EXIT(ret);
+#else
+ EFI_ENTRY("%p", time);
+ return EFI_EXIT(EFI_UNSUPPORTED);
+#endif
+}
/**
* efi_reset_system() - reset system
*
return EFI_DEVICE_ERROR;
}
+/**
+ * efi_set_time() - set current time
+ *
+ * This function implements the SetTime runtime service after
+ * SetVirtualAddressMap() is called. As the U-Boot driver are not available
+ * anymore only an error code is returned.
+ *
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @time: pointer to structure to with current time
+ * Returns: status code
+ */
+efi_status_t __weak __efi_runtime EFIAPI efi_set_time(struct efi_time *time)
+{
+ return EFI_UNSUPPORTED;
+}
+
struct efi_runtime_detach_list_struct {
void *ptr;
void *patchto;
}, {
/* invalidate_*cache_all are gone */
.ptr = &efi_runtime_services.set_virtual_address_map,
- .patchto = &efi_invalid_parameter,
+ .patchto = &efi_unimplemented,
}, {
/* RTC accessors are gone */
.ptr = &efi_runtime_services.get_time,
.patchto = &efi_get_time,
+ }, {
+ .ptr = &efi_runtime_services.set_time,
+ .patchto = &efi_set_time,
}, {
/* Clean up system table */
.ptr = &systab.con_in,
uint32_t descriptor_version,
struct efi_mem_desc *virtmap)
{
- ulong runtime_start = (ulong)&__efi_runtime_start &
- ~(ulong)EFI_PAGE_MASK;
int n = memory_map_size / descriptor_size;
int i;
+ int rt_code_sections = 0;
EFI_ENTRY("%lx %lx %x %p", memory_map_size, descriptor_size,
descriptor_version, virtmap);
+ /*
+ * TODO:
+ * Further down we are cheating. While really we should implement
+ * SetVirtualAddressMap() events and ConvertPointer() to allow
+ * dynamically loaded drivers to expose runtime services, we don't
+ * today.
+ *
+ * So let's ensure we see exactly one single runtime section, as
+ * that is the built-in one. If we see more (or less), someone must
+ * have tried adding or removing to that which we don't support yet.
+ * In that case, let's better fail rather than expose broken runtime
+ * services.
+ */
+ for (i = 0; i < n; i++) {
+ struct efi_mem_desc *map = (void*)virtmap +
+ (descriptor_size * i);
+
+ if (map->type == EFI_RUNTIME_SERVICES_CODE)
+ rt_code_sections++;
+ }
+
+ if (rt_code_sections != 1) {
+ /*
+ * We expose exactly one single runtime code section, so
+ * something is definitely going wrong.
+ */
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+ }
+
/* Rebind mmio pointers */
for (i = 0; i < n; i++) {
struct efi_mem_desc *map = (void*)virtmap +
map = (void*)virtmap + (descriptor_size * i);
if (map->type == EFI_RUNTIME_SERVICES_CODE) {
ulong new_offset = map->virtual_start -
- (runtime_start - gd->relocaddr);
+ map->physical_start + gd->relocaddr;
efi_runtime_relocate(new_offset, map);
/* Once we're virtual, we can no longer handle
* This function adds a memory-mapped IO region to the memory map to make it
* available at runtime.
*
- * @mmio_ptr: address of the memory-mapped IO region
+ * @mmio_ptr: pointer to a pointer to the start of the memory-mapped
+ * IO region
* @len: size of the memory-mapped IO region
* Returns: status code
*/
.headersize = sizeof(struct efi_runtime_services),
},
.get_time = &efi_get_time_boottime,
- .set_time = (void *)&efi_device_error,
+ .set_time = &efi_set_time_boottime,
.get_wakeup_time = (void *)&efi_unimplemented,
.set_wakeup_time = (void *)&efi_unimplemented,
.set_virtual_address_map = &efi_set_virtual_address_map,
projects / oweals / u-boot.git / blobdiff