UEFI gurus,

        Does UEFI have an api for querying the DMA regions in
the memory system?  I would like to know where they are.
I need to write a memory stress test shell application.
The application will need to read/write all the DRAM with patterns.

        I am worried that it will hit a usb or network buffer while a DMA
is in progress.  Can I assume that there will be no DMAs until I
make a read or write call to a UEFI device?

        To put it another way, if my application is running in it's own code
segment, can I assume that their are no DMAs happening simultaneously?

Thanks for your help.


Stephen


-- 
Stephen Polkowski
Centaur Technology
Austin, TX
(512) 418-5730

------------------------------------------------------------------------------
CenturyLink Cloud: The Leader in Enterprise Cloud Services.
Learn Why More Businesses Are Choosing CenturyLink Cloud For
Critical Workloads, Development Environments & Everything In Between.
Get a Quote or Start a Free Trial Today. 
http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/edk2-devel

Reply via email to