Not sure what you are asking?
The edk2 has a partition driver that speaks MBR (PC Master Boot Record), GPT
(as defined in UEFI), an El Torito for CD-ROM (not ISO-9660). A file system
driver can then just sit on top of the Block IO produced by the partition
driver, so the file system driver is not aware of partitioning.
To access a non-FAT file system you need an EFI driver the produces the Simple
File System Protocol on top of BlockIo, and usually DiskIo.
There are no security restrictions on what an EFI application can access.
An application can figure out where it was loaded from by looking into the
Loaded Image protocol instanced installed on the ImageHandle. This is the same
ImageHandle that is passed into the entry point of the image.
Andrew Fish
On Sep 10, 2012, at 11:21 AM, Bhavana Brar wrote:
> Hi,
> Can an EFI app residing in a FAT32 partition access a file ( for read/write)
> that exists on a non FAT partition?
> Thanks!------------------------------------------------------------------------------
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Exclusive live event will cover all the ways today's security and
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will include endpoint security, mobile security and the latest in malware
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