Intel Extensible Firmware Interface User Manual
Page 1029
Alphabetic Function Lists
Version 1.10
12/01/02
K-19
Table K-2. Functions Listed Alphabetically within a Service or Protocol
Service or Protocol
Function
Function Description
Flushes any cached blocks.
Reads the requested number of blocks from the
device.
Resets the block device hardware.
Writes the requested number of blocks to the device.
Frees memory structures allocated and returned by
other functions in the
EFI_BIS
protocol.
GetBootObjectAuthorization
Certificate
Retrieves the current digital certificate (if any) used by
the
EFI_BIS
protocol as the source of authorization
for verifying boot objects and altering configuration
parameters
GetBootObjectAuthorization
CheckFlag
Retrieves the current setting of the authorization
check flag that indicates whether or not authorization
checks are required for boot objects.
GetBootObjectAuthorization
UpdateToken
Retrieves an uninterpreted token whose value gets
included and signed in a subsequent request to alter
the configuration parameters, to protect against
attempts to “replay” such a request.
Retrieves information about the digital signature
algorithms supported and the identity of the installed
authorization certificate, if any.
Initializes an application instance of the
EFI_BIS
protocol, returning a handle for the application
instance.
Ends the lifetime of an application instance of the
EFI_BIS
protocol, invalidating its application
instance handle.
Requests that the configuration parameters be
altered by installing or removing an authorization
certificate or changing the setting of the check flag.
Verifies a boot object according to the supplied digital
signature and the current authorization certificate and
check flag setting.
Boot Integrity Services
Protocol
Verifies a data object according to a supplied digital
signature and a supplied digital certificate.
continued