Automatically determine TXU size from ROM

Question

Automatically determine TXU size from ROM

pixelherodev opened this issue 6 years ago · 6 comments

pixelherodev commented 6 years ago

This requires a bit of careful thought, as it's not as simple as checking for zeroes.

Answer 1 · 2020-06-10T20:31:18.000Z

Is the number of pages dependant on the ROM size ?

Answer 2 · 2020-06-10T20:33:38.000Z

Sorta.

ROMs include every single page, but TI upgrade files only include the ones you explicitly specify. If we specify every page, then uploads will take an enormous amount of time literally just writing zeroes. If we miss a page (as is sometimes the case now), then it results in missing data and bugs.

Answer 3 · 2020-06-10T20:44:17.000Z

Oh. So how do I tell to send every page then ? For debugging purposes.

Answer 4 · 2020-09-10T04:56:24.000Z

KnightOS/KnightOS's makefile has this:

       	mktiupgrade -p -s exploit/signature.bin -d $(PLATFORM) -n $(KEY) $(OUT)KnightOS-$(PLATFORM).rom \
				$(OUT)KnightOS-$(PLATFORM).$(UPGRADEEXT) 00 01 02 03 04 05 06 07 08 $(PRIVILEGED) $(EXPLOIT_PAGES);\

Basically, just add 09 0A 0B 0C... etc after 08.

(sorry for the delay, I somehow missed this)

Answer 5 · 2020-10-12T16:32:10.000Z

Note: genkfs appears to print out the page list.

Answer 6 · 2020-10-14T12:51:45.000Z

Current planned path: add a flag to genkfs that causes it to print the full list of needed pages to a file in .knightos, and read that in the Makefile to generate the mktiupgrade command line.