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authorWojtek Kosior <kwojtus@protonmail.com>2020-01-18 01:50:48 +0100
committerWojtek Kosior <kwojtus@protonmail.com>2020-01-18 01:50:48 +0100
commitcb3e21c6c1d449acd1d2785810ac23d5210cfbe3 (patch)
tree967446fe77170dca317449150e18a575b640b7d3 /TODOs
parent97b4856526fcca2c680e522aef5e74758c70c62b (diff)
downloadrpi-MMU-example-cb3e21c6c1d449acd1d2785810ac23d5210cfbe3.tar.gz
rpi-MMU-example-cb3e21c6c1d449acd1d2785810ac23d5210cfbe3.zip
add small, arm-related TODO
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@@ -61,6 +61,8 @@ high priority TODOs are higher; low priority ones and completed ones are lower;
* Reintroduce checking if size of loader_stage2.img is small enough in Makfile (removed by accident).
+* Check if setting user mode's sp and lr can be achieved by msr instead of switching to system mode. If so, use this method.
+
* partially DONE - one can always add more, but we have the most important stuff * Implement some basic utilities for us to use (memcpy, printf, etc...)
* partailly DONE - svc works; once we implement processes we could also kill them on aborts * develop userspace process supervision (handling of interrupt caused by svc instruction, proper handling of other data abort, undefined instruction, etc.)