Simon:
Buffer Storage, Name/Value storage or EFI variable storage are not required
to be non-volatile storage. You can use volatile storage for it. For example,
EFI variable storage has the attribute for its storage. If
EFI_VARIABLE_NON_VOLATILE is not set for its attribute, this storage will map
to volatile EFI variable.
Thanks
Liming
From: Simon (Xiang) Lian-SSI [mailto:[email protected]]
Sent: Thursday, October 03, 2013 10:01 AM
To: [email protected]
Subject: [edk2] Storing question value in a 'volatile' storage variable?
I want to store a question value into a 'volatile' storage variable, because
the value is temporal and does not need to be saved at all. According to UEFI
Driver Writer's Guide, question values are always saved in non-volatile storage
(it can be Buffer Storage, Name/Value storage or EFI variable storage). Is it
possible that any of those storage types be implemented as a 'volatile'
storage, or is there any other way around to achieve this? Appreciate if anyone
can shed some light on this.
Thanks,
Simon
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