Booting on QEMU Morello #197
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PandaZ3D
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gvnn3
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Aug 13, 2024
| "[gicv3] GICD_ISENABLER1: {:#x}", | ||
| read_reg(self.distr.as_ptr(), 0x0100 + 4 * 1) | ||
| ); | ||
| // emerglogln!("[gicv3] GICD_ISENABLER1: {:#x}", denable); |
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Remove commented out lines, and let the VCS do its work.
| bootloader_dtb_addr | ||
| } | ||
| }; | ||
| // should not fail, but it might ... |
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Can you add a bit more commentary here? Why might it? This is a very enigmatic comment.
dbittman
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Aug 20, 2024
* Added a nvme fs prototype * Added fat repo as just code instead of submodule * fmted code and added optimizations * OS Side FS STD integration * Added std fs changes to rust * Added error handling, minor design changes * Added compaction to fd allocator * Ran cargo fmt * Formatted and documented the fs runtimme * Booting on QEMU Morello (#197) * Add support for CHERI QEMU * Add Morello build target * Implement basic GICv3 support * Run cargo fmt * Fix interrupt initialization * Cleanup and comments * Changed the rust submodule to point to the twizzler branch * Moved back rust submodule to previous commit * Fixed cargo lock because of a typo I made --------- Co-authored-by: Allen Aboytes <[email protected]>
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This patch implements the first in a series of patches to port Twizzler to the CHERI Morello system architecture. Morello is an ARMv8-A based platform that implements architectural capabilities. Our first line of work is getting the kernel to boot in a virtualized environment by implementing support for a different interrupt controller (i.e., GICv3). The changes to the code base were mostly architecture-specific with a small change to xtask to use
qemu-system-morello. The kernel can process basic interrupts in the QEMU-Morello environment, and run user programs like in a normal ARM system.The port so far is limited since QEMU-Morello does not perfectly model the system environment of Morello (e.g., device tree). We leave advanced interrupt controller functionality and improvements to the kernel bootstrap implementation for future work.