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* vfs: Create type alias for Tree nodesHimbeer2024-06-301-1/+3
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* vfs: Add Dir and DirHook resource typesHimbeer2024-06-301-8/+16
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* syscall: Add stubs for VFS interactionHimbeer2024-06-301-0/+59
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* vfs: Add initial VFS providerHimbeer2024-06-301-0/+59
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* hello_world: Make use of uprint syscall to print hello messageHimbeer2024-06-221-1/+8
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* syscall: Add naive uprint syscallHimbeer2024-06-221-0/+15
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* kernel: Remove stray newline between first parameter listing and page table ↵Himbeer2024-06-221-2/+0
| | | | summary
* linking: Increase heap size to 512 MiBHimbeer2024-06-211-1/+1
| | | | This is required due to the overhead of the new page allocator.
* kernel: Switch to page allocator for the time beingHimbeer2024-06-211-2/+3
| | | | Temporarily fixes #33.
* mem: Add page allocatorHimbeer2024-06-211-8/+57
| | | | This allocator is more robust than the existing chunk allocator. It is backed by the page-grained allocator and does not support resizing. The CPU and memory overhead is considerably higher.
* mem: Always place chunk header directly before data buffer without alignment ↵Himbeer2024-06-211-3/+11
| | | | padding
* Revert "mem: Fix resizing not accounting for alignment padding between Chunk ↵Himbeer2024-06-211-11/+5
| | | | | | header and data buffer" This reverts commit 88ee047a24518161478dc1f79fb95f3343bc642a.
* process: Handle ELF memory overruns gracefully (return error instead of ↵Himbeer2024-06-211-1/+2
| | | | panicking the kernel)
* process: Combine size emptiness checks into single if-statementHimbeer2024-06-211-2/+1
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* process: Use ELF PHDR filesz instead of memsz where applicable (checked for ↵Himbeer2024-06-211-2/+4
| | | | consistency)
* mem: Fix resizing not accounting for alignment padding between Chunk header ↵Himbeer2024-06-211-5/+11
| | | | | | and data buffer Fixes #32.
* doc: Explain userinit creationHimbeer2024-06-191-0/+19
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* process: Fix ELF PHDR iteration and memcpy size limitsHimbeer2024-06-191-2/+3
| | | | It is now possible to execute a statically linked freestanding ELF file from the userinit tarball.
* mem: Use correct Chunk header alignment (1)Himbeer2024-06-191-37/+44
| | | | Fixes #30.
* vfs: Add userinit.tar reading (no VFS functionality yet)Himbeer2024-06-182-0/+7
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* examples: Add hello_world example programHimbeer2024-06-184-0/+167
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* process: Switch to ELF loadingHimbeer2024-06-182-45/+118
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* git: Remove dropped U-Boot config from ignorelistHimbeer2024-06-171-3/+0
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* syscall: Expect ID to be passed in a7Himbeer2024-06-172-3/+3
| | | | This is consistent with Linux and pk and may help with adding compatibility in the future.
* build: Force optimizationHimbeer2024-06-151-1/+2
| | | | Fixes hangs with debug builds on the lpi4a platform.
* interrupts: Restore global pointer before entering handleTrapHimbeer2024-06-151-0/+7
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* process: Use slice instead of multi-item pointer for demo entry pointHimbeer2024-06-131-2/+2
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* process: Disable interrupts while switching to U-modeHimbeer2024-06-132-3/+10
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* interrupts: Use .user enum literal for previous_privilege checkHimbeer2024-06-131-1/+1
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* interrupts: Refactor sstatus retrievalHimbeer2024-06-131-26/+3
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* paging: Refactor typing of allocated pagesHimbeer2024-06-132-45/+45
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* process: Bump interrupt timer frequency to 1000 HzHimbeer2024-06-131-1/+1
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* interrupts: Use kernel trap frame to get correct hart IDHimbeer2024-06-042-25/+22
| | | | Fixes #24.
* panic: Disable and clear all interrupts before using wfiHimbeer2024-06-043-12/+13
| | | | Fixes #16.
* instructions: Represent sstatus CSR in the type systemHimbeer2024-06-042-10/+43
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* interrupts: Assume successful console outputHimbeer2024-06-041-4/+4
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* doc: Change SMP to yes in QEMU U-Boot config, including SPLHimbeer2024-06-031-2/+3
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* linking: Merge regular sections and their small counterpartsHimbeer2024-05-303-22/+3
| | | | Fixes #22.
* hwi: Make binary format endian-awareHimbeer2024-05-267-11/+22
| | | | Fixes #19.
* doc: Add instructions for Lichee Pi 4AHimbeer2024-05-261-8/+65
| | | | Fixes #20.
* doc: Switch to imperative headingsHimbeer2024-05-261-6/+6
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* paging: Map PCI(e) controller before using itHimbeer2024-05-266-35/+44
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* hwi: Add QEMUHimbeer2024-05-265-1/+10
| | | | Fixes #21.
* Revert "doc: Add workaround for faulty OpenSBI FDT fixups"Himbeer2024-05-231-11/+1
| | | | This reverts commit 0f61d3bed969fecb35e438bfac2fe34f588834c6.
* doc: Update instructions to platform-specific builds and HWI usageHimbeer2024-05-231-13/+104
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* license: Annotate lpi4a HWI and its sourceHimbeer2024-05-232-0/+6
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* git: Ignore hwi binariesHimbeer2024-05-231-0/+2
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* Drop FDT support in favor of custom HWI formatHimbeer2024-05-2324-670/+225
| | | | Fixes numerous parsing bugs and increases efficiency. The kernel now runs successfully on the Lichee Pi 4A.
* doc: Add workaround for faulty OpenSBI FDT fixupsHimbeer2024-05-211-1/+11
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* main: Don't use stack variables across paging activation boundaryHimbeer2024-05-211-37/+77
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