X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FInclude%2FLibrary%2FUefiRuntimeLib.h;h=54be1017df43bd9c201985f7da5195269a2f3573;hb=003c1db883a1e5c4011ded3fe17c2d9405292dd9;hp=09abf0ceb1862a4163840244c3b2da7e8cd4a22c;hpb=3b89de633df7b66c0dd4502f2f217a0c54cb06cd;p=mirror_edk2.git diff --git a/MdePkg/Include/Library/UefiRuntimeLib.h b/MdePkg/Include/Library/UefiRuntimeLib.h index 09abf0ceb1..54be1017df 100644 --- a/MdePkg/Include/Library/UefiRuntimeLib.h +++ b/MdePkg/Include/Library/UefiRuntimeLib.h @@ -1,15 +1,15 @@ /** @file - Library to abstract runtime services + Provides library functions for each of the UEFI Runtime Services. + Only available to DXE and UEFI module types. - Copyright (c) 2006, Intel Corporation - All rights reserved. This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php - - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +Copyright (c) 2006 - 2008, Intel Corporation
+All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. **/ #ifndef __UEFI_RUNTIME_LIB__ @@ -21,12 +21,15 @@ extern const EFI_EVENT_NOTIFY _gDriverExitBootServicesEvent[]; extern const EFI_EVENT_NOTIFY _gDriverSetVirtualAddressMapEvent[]; /** - Check to see if the execute context is in Runtime phase or not. + This function allows the caller to determine if UEFI ExitBootServices() has been called. - @param None. + This function returns TRUE after all the EVT_SIGNAL_EXIT_BOOT_SERVICES functions have + executed as a result of the OS calling ExitBootServices(). Prior to this time FALSE + is returned. This function is used by runtime code to decide it is legal to access + services that go away after ExitBootServices(). - @retval TRUE The driver is in SMM. - @retval FALSE The driver is not in SMM. + @retval TRUE The system has finished executing the EVT_SIGNAL_EXIT_BOOT_SERVICES event. + @retval FALSE The system has not finished executing the EVT_SIGNAL_EXIT_BOOT_SERVICES event. **/ BOOLEAN @@ -36,10 +39,15 @@ EfiAtRuntime ( ); /** - Check to see if the SetVirtualAddressMsp() is invoked or not. + This function allows the caller to determine if UEFI SetVirtualAddressMap() has been called. + + This function returns TRUE after all the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE functions have + executed as a result of the OS calling SetVirtualAddressMap(). Prior to this time FALSE + is returned. This function is used by runtime code to decide it is legal to access services + that go away after SetVirtualAddressMap(). - @retval TRUE SetVirtualAddressMsp() has been called. - @retval FALSE SetVirtualAddressMsp() has not been called. + @retval TRUE The system has finished executing the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event. + @retval FALSE The system has not finished executing the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event. **/ BOOLEAN @@ -49,31 +57,53 @@ EfiGoneVirtual ( ); /** - Return current time and date information, and time-keeping - capabilities of hardware platform. + This service is a wrapper for the UEFI Runtime Service GetTime(). + + The GetTime() function returns a time that was valid sometime during the call to the function. + While the returned EFI_TIME structure contains TimeZone and Daylight savings time information, + the actual clock does not maintain these values. The current time zone and daylight saving time + information returned by GetTime() are the values that were last set via SetTime(). + The GetTime() function should take approximately the same amount of time to read the time each + time it is called. All reported device capabilities are to be rounded up. + During runtime, if a PC-AT CMOS device is present in the platform the caller must synchronize + access to the device before calling GetTime(). @param Time A pointer to storage to receive a snapshot of the current time. @param Capabilities An optional pointer to a buffer to receive the real time clock device's capabilities. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER Time is NULL. + @retval EFI_DEVICE_ERROR The time could not be retrieved due to a hardware error. **/ EFI_STATUS EFIAPI EfiGetTime ( OUT EFI_TIME *Time, - OUT EFI_TIME_CAPABILITIES *Capabilities + OUT EFI_TIME_CAPABILITIES *Capabilities OPTIONAL ); /** - Set current time and date information. - - @param Time A pointer to cache of time setting. - - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to execute the function. + This service is a wrapper for the UEFI Runtime Service SetTime(). + + The SetTime() function sets the real time clock device to the supplied time, and records the + current time zone and daylight savings time information. The SetTime() function is not allowed + to loop based on the current time. For example, if the device does not support a hardware reset + for the sub-resolution time, the code is not to implement the feature by waiting for the time to + wrap. + During runtime, if a PC-AT CMOS device is present in the platform the caller must synchronize + access to the device before calling SetTime(). + + @param Time A pointer to the current time. Type EFI_TIME is defined in the GetTime() + function description. Full error checking is performed on the different + fields of the EFI_TIME structure (refer to the EFI_TIME definition in the + GetTime() function description for full details), and EFI_INVALID_PARAMETER + is returned if any field is out of range. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETER A time field is out of range. + @retval EFI_DEVICE_ERROR The time could not be set due to a hardware error. **/ EFI_STATUS @@ -83,14 +113,24 @@ EfiSetTime ( ); /** - Return current wakeup alarm clock setting. + This service is a wrapper for the UEFI Runtime Service GetWakeupTime(). - @param Enabled Indicate if the alarm clock is enabled or disabled. - @param Pending Indicate if the alarm signal is pending and requires acknowledgement. - @param Time Current alarm clock setting. + The alarm clock time may be rounded from the set alarm clock time to be within the resolution + of the alarm clock device. The resolution of the alarm clock device is defined to be one second. + During runtime, if a PC-AT CMOS device is present in the platform the caller must synchronize + access to the device before calling GetWakeupTime(). - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @param Enabled Indicates if the alarm is currently enabled or disabled. + @param Pending Indicates if the alarm signal is pending and requires acknowledgement. + @param Time The current alarm setting. Type EFI_TIME is defined in the GetTime() + function description. + + @retval EFI_SUCCESS The alarm settings were returned. + @retval EFI_INVALID_PARAMETER Enabled is NULL. + @retval EFI_INVALID_PARAMETER Pending is NULL. + @retval EFI_INVALID_PARAMETER Time is NULL. + @retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error. + @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform. **/ EFI_STATUS @@ -102,27 +142,46 @@ EfiGetWakeupTime ( ); /** - Set current wakeup alarm clock. - - @param Enable Enable or disable current alarm clock.. - @param Time Point to alarm clock setting. - - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + This service is a wrapper for the UEFI Runtime Service SetWakeupTime() + + Setting a system wakeup alarm causes the system to wake up or power on at the set time. + When the alarm fires, the alarm signal is latched until it is acknowledged by calling SetWakeupTime() + to disable the alarm. If the alarm fires before the system is put into a sleeping or off state, + since the alarm signal is latched the system will immediately wake up. If the alarm fires while + the system is off and there is insufficient power to power on the system, the system is powered + on when power is restored. + + @param Enable Enable or disable the wakeup alarm. + @param Time If Enable is TRUE, the time to set the wakeup alarm for. Type EFI_TIME + is defined in the GetTime() function description. If Enable is FALSE, + then this parameter is optional, and may be NULL. + + @retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled. + If Enable is FALSE, then the wakeup alarm was disabled. + @retval EFI_INVALID_PARAMETER A time field is out of range. + @retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error. + @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform. **/ EFI_STATUS EFIAPI EfiSetWakeupTime ( IN BOOLEAN Enable, - IN EFI_TIME *Time + IN EFI_TIME *Time OPTIONAL ); /** - Return value of variable. + This service is a wrapper for the UEFI Runtime Service GetVariable(). - @param VariableName the name of the vendor's variable, it's a - Null-Terminated Unicode String + Each vendor may create and manage its own variables without the risk of name conflicts by + using a unique VendorGuid. When a variable is set its Attributes are supplied to indicate + how the data variable should be stored and maintained by the system. The attributes affect + when the variable may be accessed and volatility of the data. Any attempts to access a variable + that does not have the attribute set for runtime access will yield the EFI_NOT_FOUND error. + If the Data buffer is too small to hold the contents of the variable, the error EFI_BUFFER_TOO_SMALL + is returned and DataSize is set to the required buffer size to obtain the data. + + @param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String @param VendorGuid Unify identifier for vendor. @param Attributes Point to memory location to return the attributes of variable. If the point is NULL, the parameter would be ignored. @@ -130,23 +189,35 @@ EfiSetWakeupTime ( As output, point to the actual size of the returned Data-Buffer. @param Data Point to return Data-Buffer. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. - + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_NOT_FOUND The variable was not found. + @retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result. DataSize has + been updated with the size needed to complete the request. + @retval EFI_INVALID_PARAMETER VariableName is NULL. + @retval EFI_INVALID_PARAMETER VendorGuid is NULL. + @retval EFI_INVALID_PARAMETER DataSize is NULL. + @retval EFI_INVALID_PARAMETER The DataSize is not too small and Data is NULL. + @retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error. + @retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure. **/ EFI_STATUS EFIAPI EfiGetVariable ( IN CHAR16 *VariableName, IN EFI_GUID *VendorGuid, - OUT UINT32 *Attributes, + OUT UINT32 *Attributes OPTIONAL, IN OUT UINTN *DataSize, OUT VOID *Data - ) -; + ); /** - Enumerates variable's name. + This service is a wrapper for the UEFI Runtime Service GetNextVariableName(). + + GetNextVariableName() is called multiple times to retrieve the VariableName and VendorGuid of + all variables currently available in the system. On each call to GetNextVariableName() the + previous results are passed into the interface, and on output the interface returns the next + variable name data. When the entire variable list has been returned, the error EFI_NOT_FOUND + is returned. @param VariableNameSize As input, point to maxinum size of variable name. As output, point to actual size of varaible name. @@ -158,8 +229,15 @@ EfiGetVariable ( GetNextVriableName(). As output, returns the VendorGuid of the current variable. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_NOT_FOUND The next variable was not found. + @retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the result. + VariableNameSize has been updated with the size needed + to complete the request. + @retval EFI_INVALID_PARAMETER VariableNameSize is NULL. + @retval EFI_INVALID_PARAMETER VariableName is NULL. + @retval EFI_INVALID_PARAMETER VendorGuid is NULL. + @retval EFI_DEVICE_ERROR The variable name could not be retrieved due to a hardware error. **/ EFI_STATUS @@ -171,7 +249,10 @@ EfiGetNextVariableName ( ); /** - Sets value of variable. + This service is a wrapper for the UEFI Runtime Service GetNextVariableName() + + Variables are stored by the firmware and may maintain their values across power cycles. Each vendor + may create and manage its own variables without the risk of name conflicts by using a unique VendorGuid. @param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String @@ -181,8 +262,19 @@ EfiGetNextVariableName ( @param DataSize The size in bytes of Data-Buffer. @param Data Point to the content of the variable. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as + defined by the Attributes. + @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the + DataSize exceeds the maximum allowed. + @retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string. + @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data. + @retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure. + @retval EFI_WRITE_PROTECTED The variable in question is read-only. + @retval EFI_WRITE_PROTECTED The variable in question cannot be deleted. + @retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS + set but the AuthInfo does NOT pass the validation check carried + out by the firmware. + @retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found. **/ EFI_STATUS @@ -196,12 +288,19 @@ EfiSetVariable ( ); /** - Returns the next high 32 bits of platform's monotonic counter. + This service is a wrapper for the UEFI Runtime Service GetNextHighMonotonicCount(). + + The platform¡¯s monotonic counter is comprised of two 32-bit quantities: the high 32 bits and + the low 32 bits. During boot service time the low 32-bit value is volatile: it is reset to zero + on every system reset and is increased by 1 on every call to GetNextMonotonicCount(). The high + 32-bit value is nonvolatile and is increased by 1 whenever the system resets or whenever the low + 32-bit count (returned by GetNextMonoticCount()) overflows. @param HighCount Pointer to returned value. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @retval EFI_SUCCESS The next high monotonic count was returned. + @retval EFI_DEVICE_ERROR The device is not functioning properly. + @retval EFI_INVALID_PARAMETER HighCount is NULL. **/ EFI_STATUS @@ -211,16 +310,36 @@ EfiGetNextHighMonotonicCount ( ); /** - Resets the entire platform. + This service is a wrapper for the UEFI Runtime Service ResetSystem(). + + The ResetSystem()function resets the entire platform, including all processors and devices,and reboots the system. + Calling this interface with ResetType of EfiResetCold causes a system-wide reset. This sets all circuitry within + the system to its initial state. This type of reset is asynchronous to system operation and operates without regard + to cycle boundaries. EfiResetCold is tantamount to a system power cycle. + Calling this interface with ResetType of EfiResetWarm causes a system-wide initialization. The processors are set to + their initial state, and pending cycles are not corrupted. If the system does not support this reset type, then an + EfiResetCold must be performed. + Calling this interface with ResetType of EfiResetShutdown causes the system to enter a power state equivalent to the + ACPI G2/S5 or G3 states. If the system does not support this reset type, then when the system is rebooted, it should + exhibit the EfiResetCold attributes. + The platform may optionally log the parmeters from any non-normal reset that occurs. + The ResetSystem() function does not return. @param ResetType The type of reset to perform. - @param ResetStatus The status code for reset. - @param DataSize The size in bytes of reset data. - @param ResetData Pointer to data buffer that includes - Null-Terminated Unicode string. + @param ResetStatus The status code for the reset. If the system reset is part of a normal operation, the status code + would be EFI_SUCCESS. If the system reset is due to some type of failure the most appropriate EFI + Status code would be used. + @param DataSizeThe size, in bytes, of ResetData. + @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown the data buffer starts with a + Null-terminated Unicode string, optionally followed by additional binary data. The string is a + description that the caller may use to further indicate the reason for the system reset. ResetData + is only valid if ResetStatus is something other then EFI_SUCCESS. This pointer must be a physical + address. For a ResetType of EfiRestUpdate the data buffer also starts with a Null-terminated string + that is followed by a physical VOID * to an EFI_CAPSULE_HEADER. **/ VOID +EFIAPI EfiResetSystem ( IN EFI_RESET_TYPE ResetType, IN EFI_STATUS ResetStatus, @@ -229,15 +348,21 @@ EfiResetSystem ( ); /** - Determines the new virtual address that is to be used on subsequent memory accesses. + This service is a wrapper for the UEFI Runtime Service ConvertPointer(). + + The ConvertPointer() function is used by an EFI component during the SetVirtualAddressMap() operation. + ConvertPointer()must be called using physical address pointers during the execution of SetVirtualAddressMap(). @param DebugDisposition Supplies type information for the pointer being converted. @param Address The pointer to a pointer that is to be fixed to be the value needed for the new virtual address mapping being applied. - @retval EFI_SUCCESS Success to execute the function. - @retval !EFI_SUCCESS Failed to e3xecute the function. + @retval EFI_SUCCESS The pointer pointed to by Address was modified. + @retval EFI_NOT_FOUND The pointer pointed to by Address was not found to be part of + the current memory map. This is normally fatal. + @retval EFI_INVALID_PARAMETER Address is NULL. + @retval EFI_INVALID_PARAMETER *Address is NULL and DebugDispositio **/ EFI_STATUS @@ -247,9 +372,42 @@ EfiConvertPointer ( IN OUT VOID **Address ); +/** + Determines the new virtual address that is to be used on subsequent memory accesses. + + For IA32, X64, and EBC, this service is a wrapper for the UEFI Runtime Service + ConvertPointer(). See the UEFI Specification for details. + For IPF, this function interprets Address as a pointer to an EFI_PLABEL structure + and both the EntryPoint and GP fields of an EFI_PLABEL are converted from physical + to virtiual addressing. Since IPF allows the GP to point to an address outside + a PE/COFF image, the physical to virtual offset for the EntryPoint field is used + to adjust the GP field. The UEFI Runtime Service ConvertPointer() is used to convert + EntryPoint and the status code for this conversion is always returned. If the convertion + of EntryPoint fails, then neither EntryPoint nor GP are modified. See the UEFI + Specification for details on the UEFI Runtime Service ConvertPointer(). + + @param DebugDisposition Supplies type information for the pointer being converted. + @param Address The pointer to a pointer that is to be fixed to be the + value needed for the new virtual address mapping being + applied. + + @return EFI_STATUS value from EfiConvertPointer(). + +**/ +EFI_STATUS +EFIAPI +EfiConvertFunctionPointer ( + IN UINTN DebugDisposition, + IN OUT VOID **Address + ); /** - Change the runtime addressing mode of EFI firmware from physical to virtual. + This service is a wrapper for the UEFI Runtime Service SetVirtualAddressMap(). + + The SetVirtualAddressMap() function is used by the OS loader. The function can only be called + at runtime, and is called by the owner of the system¡¯s memory map. I.e., the component which + called ExitBootServices(). All events of type EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE must be signaled + before SetVirtualAddressMap() returns. @param MemoryMapSize The size in bytes of VirtualMap. @param DescriptorSize The size in bytes of an entry in the VirtualMap. @@ -280,7 +438,11 @@ EfiSetVirtualAddressMap ( /** - Conver the standard Lib double linked list to a virtual mapping. + Convert the standard Lib double linked list to a virtual mapping. + + This service uses EfiConvertPointer() to walk a double linked list and convert all the link + pointers to their virtual mappings. This function is only guaranteed to work during the + EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event and calling it at other times has undefined results. @param DebugDisposition Supplies type information for the pointer being converted. @param ListHead Head of linked list to convert. @@ -297,13 +459,12 @@ EfiConvertList ( ); /** + This service is a wrapper for the UEFI Runtime Service UpdateCapsule(). - Passes capsules to the firmware with both virtual and physical mapping. - Depending on the intended consumption, the firmware may - process the capsule immediately. If the payload should persist across a - system reset, the reset value returned from EFI_QueryCapsuleCapabilities must - be passed into ResetSystem() and will cause the capsule to be processed by - the firmware as part of the reset process. + Passes capsules to the firmware with both virtual and physical mapping. Depending on the intended + consumption, the firmware may process the capsule immediately. If the payload should persist across a + system reset, the reset value returned from EFI_QueryCapsuleCapabilities must be passed into ResetSystem() + and will cause the capsule to be processed by the firmware as part of the reset process. @param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules being passed into update capsule. Each capsules is assumed to @@ -322,11 +483,13 @@ EfiConvertList ( CapsuleHeaderArray. This parameter is only referenced if the capsules are defined to persist across system reset. - @retval EFI_SUCCESS Valid capsule was passed. I Valid capsule was passed. If - CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the - capsule has been successfully processed by the firmware. - @retval EFI_INVALID_PARAMETER CapsuleSize is NULL or ResetTye is NULL. + @retval EFI_SUCCESS Valid capsule was passed. If CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, + the capsule has been successfully processed by the firmware. + @retval EFI_INVALID_PARAMETER CapsuleSize or HeaderSize is NULL. + @retval EFI_INVALID_PARAMETER CapsuleCount is 0 @retval EFI_DEVICE_ERROR The capsule update was started, but failed due to a device error. + @retval EFI_UNSUPPORTED The capsule type is not supported on this platform. + @retval EFI_OUT_OF_RESOURCES There were insufficient resources to process the capsule. **/ EFI_STATUS @@ -334,11 +497,12 @@ EFIAPI EfiUpdateCapsule ( IN EFI_CAPSULE_HEADER **CapsuleHeaderArray, IN UINTN CapsuleCount, - IN EFI_PHYSICAL_ADDRESS ScatterGatherList + IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL ); /** + This service is a wrapper for the UEFI Runtime Service QueryCapsuleCapabilities(). The QueryCapsuleCapabilities() function allows a caller to test to see if a capsule or capsules can be updated via UpdateCapsule(). The Flags values in the capsule header and @@ -358,16 +522,17 @@ EfiUpdateCapsule ( stored in contiguous virtual memory. @param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in CaspuleHeaderArray. - @param MaxiumCapsuleSize On output the maximum size that UpdateCapsule() can + @param MaximumCapsuleSize On output the maximum size that UpdateCapsule() can support as an argument to UpdateCapsule() via CapsuleHeaderArray and ScatterGatherList. Undefined on input. @param ResetType Returns the type of reset required for the capsule update. - @retval EFI_SUCCESS Valid answer returned.. + @retval EFI_SUCCESS Valid answer returned. @retval EFI_INVALID_PARAMETER MaximumCapsuleSize is NULL. @retval EFI_UNSUPPORTED The capsule type is not supported on this platform, and MaximumCapsuleSize and ResetType are undefined. + @retval EFI_OUT_OF_RESOURCES There were insufficient resources to process the query request. **/ EFI_STATUS @@ -381,6 +546,7 @@ EfiQueryCapsuleCapabilities ( /** + This service is a wrapper for the UEFI Runtime Service QueryVariableInfo(). The QueryVariableInfo() function allows a caller to obtain the information about the maximum size of the storage space available for the EFI variables, the remaining size of the storage @@ -411,11 +577,12 @@ EfiQueryCapsuleCapabilities ( MaximumVariableStorageSize, RemainingVariableStorageSize, MaximumVariableSize are undefined. + **/ EFI_STATUS EFIAPI EfiQueryVariableInfo ( - IN UINT32 Attrubutes, + IN UINT32 Attributes, OUT UINT64 *MaximumVariableStorageSize, OUT UINT64 *RemainingVariableStorageSize, OUT UINT64 *MaximumVariableSize