fix elfloader: add UART MMIO mapping for debug output on AArch64 after MMU enable.#254
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fix elfloader: add UART MMIO mapping for debug output on AArch64 after MMU enable.#254Whatever314 wants to merge 1 commit intoseL4:masterfrom
Whatever314 wants to merge 1 commit intoseL4:masterfrom
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… aarch64. Previously el1 error traps defined in <arch>/<mode>/debug.c doesn't print anything cos the uart memory regions are not mapped after enabling mmu. This commit is a preliminary fix for arm aarch64 platforms. Signed-off-by: W Sun <[email protected]>
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I'd rather disable the MMU in the trap code than this. That would make it possible to debug traps caused by bad MMU setups too. |
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Previously el1 error traps defined in //debug.c doesn't print anything cos the uart memory regions are not mapped after enabling mmu. This is a preliminary fix for arm aarch64 platforms.
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Sorry that I have neither time nor hardware to implement and test this fix on other platforms.