\r
This function provides a service to send and receive messages from a registered UEFI service.\r
\r
- @param[in] This The EFI_MM_COMMUNICATION_PROTOCOL instance.\r
- @param[in] CommBufferPhysical Physical address of the MM communication buffer\r
- @param[in] CommBufferVirtual Virtual address of the MM communication buffer\r
- @param[in] CommSize The size of the data buffer being passed in. On exit, the size of data\r
- being returned. Zero if the handler does not wish to reply with any data.\r
- This parameter is optional and may be NULL.\r
+ @param[in] This The EFI_MM_COMMUNICATION_PROTOCOL instance.\r
+ @param[in, out] CommBufferPhysical Physical address of the MM communication buffer\r
+ @param[in, out] CommBufferVirtual Virtual address of the MM communication buffer\r
+ @param[in, out] CommSize The size of the data buffer being passed in. On exit, the\r
+ size of data being returned. Zero if the handler does not\r
+ wish to reply with any data. This parameter is optional\r
+ and may be NULL.\r
\r
@retval EFI_SUCCESS The message was successfully posted.\r
@retval EFI_INVALID_PARAMETER CommBufferPhysical was NULL or CommBufferVirtual was NULL.\r