1328 Commits

This Branch

This Branch

All Branches

Author	SHA1	Message	Date
apio	9274ad0404	kernel, luna: Move Spinlock.h to luna	2023-02-27 15:22:24 +01:00
apio	c422d11682	kernel: Start working on a VFS implementation using OOP and SharedPtr	2023-02-27 15:22:24 +01:00
apio	71b981175e	InitRD: Use MMU::translate_physical_address instead of allocating VM ... This one is a perfect candidate, since we're just mapping a fixed continuous range of physical memory to virtual memory.	2023-02-27 13:27:21 +01:00
apio	f0a3f99cf9	MemoryManager: Initialize KernelVM at the end of init() ... KernelVM is not needed for MMU's init process anymore.	2023-02-27 13:24:58 +01:00
apio	519aa347dd	x86_64: Remove recursive mapping related things from MMU.h	2023-02-27 13:07:52 +01:00
apio	3ec54fafde	x86_64/MMU: Do not allocate level 1 page tables for huge page entries ... This would leak memory, since we would never end up using them.	2023-02-27 12:55:15 +01:00
apio	752dfdbf1c	MemoryManager: Reuse the existing mapping of physical memory that MMU has	2023-02-27 12:51:29 +01:00
apio	8df441064f	x86_64/MMU: Map the physical address space using huge pages	2023-02-27 12:47:17 +01:00
apio	426f6e4da8	x86_64: Allow mapping huge pages, but don't do it yet	2023-02-27 12:41:28 +01:00
apio	837d483e0b	x86_64/MMU: Copy from the mapped kernel directory instead of the physical version	2023-02-27 12:30:52 +01:00
apio	995d1bc36e	x86_64/MMU: Map all physical memory into the higher half instead of using recursive mapping ... This still has a few problems. Notably, we are not using huge pages for this mapping, which would be a lot more efficient. Right now, used memory is 8.1 MiB at boot for a 256MiB system. But after improving it, this system will be much better than recursive mapping. fork() will be MUCH easier to implement, for example.	2023-02-27 12:24:21 +01:00
apio	7dd8e85554	Update README.md with realism	2023-02-25 18:20:06 +01:00
apio	0985b75057	kernel: Add a guard page to the bootstrap stack so that we can catch more stack overflows	2023-02-25 17:42:32 +01:00
apio	4fd871fdaa	luna: Introduce fail(...), a replacement for expect(false, ...)	2023-02-25 17:41:28 +01:00
apio	8352df5ee8	kernel: Enable UBSAN when building in debug mode	2023-02-25 17:37:50 +01:00
apio	da436b3856	luna: Add UB sanitizer, for both kernel-space and userspace	2023-02-25 17:37:38 +01:00
apio	03ed2c3e12	libc: Make dbgln() also print a newline in userspace ... Previously, dbgln() only printed a newline in kernel-space.	2023-02-25 17:36:03 +01:00
apio	794567327f	kernel, luna: Port non-VFS changes over from pull request #22 ... OwnedPtr, SharedPtr: Add operator bool Option, Result: Make try_move_value() non-const since it modifies the Option kernel: Switch to a stack we control for the main task as soon as we leave early boot Heap: Fix GPF caused when making many small allocations Heap: Avoid accessing a block after it's potentially deleted luna: Skip UBSAN.cpp in CMakeLists as that's not implemented yet luna: Use spinlocks in the heap implementation kernel, luna: Move Spinlock.h to luna Option: Use __builtin_launder to ensure that the compiler doesn't label this as UB SharedPtr: Implement make_shared using adopt_shared SharedPtr: Delete ptr on failure in all adopt_shared* functions	2023-02-25 17:09:03 +01:00
apio	89958fbc74	kernel: Show a more technical message on failure to remap kernel data sections	2023-02-02 21:26:07 +01:00
apio	c05a87c7ff	kernel: Reenable the text console on panic	2023-02-01 22:58:31 +01:00
apio	e9a009478f	SharedPtr: Fixes and support for casting to other SharedPtr types	2023-01-31 19:59:06 +01:00
apio	3a84e4998c	kernel/Thread: Add FIXME	2023-01-31 17:02:49 +01:00
apio	35501407c1	kernel: Stop shouting when creating threads	2023-01-25 21:25:34 +01:00
apio	fd0e29ede5	kernel: Add FIXME in copy_to_user()/copy_from_user()	2023-01-25 21:22:14 +01:00
apio	8098ff0616	tools: Avoid rebuilding libc and friends every single time ... We do this by preserving timestamps when copying headers so CMake doesn't think they have changed.	2023-01-25 21:16:20 +01:00
apio	635437a4a4	luna: Add a new idiomatic way to mark unused parameters as used while keeping their names ... Just call ignore(...)	2023-01-25 21:14:44 +01:00
apio	39042cbbd4	kernel: PCI constness updates	2023-01-25 21:01:45 +01:00
apio	fa29d6e9b9	kernel: Rename PCI::callback_t to PCI::Callback	2023-01-25 20:58:59 +01:00
apio	15c89a3592	kernel: Implement filtered PCI scans	2023-01-23 21:24:05 +01:00
apio	3a4ca73df7	kernel: Sync log output	2023-01-23 20:42:34 +01:00
apio	6677c643a5	kernel: Start scanning the PCI bus for devices	2023-01-23 20:07:17 +01:00
apio	de04c094e7	x86_64: Skip enabling WP for now until I find how to check for its availability	2023-01-23 20:06:45 +01:00
apio	8cb9c14b1e	luna/Format: Make output_(pure_)integer_data take a const reference to vstate	2023-01-22 17:36:02 +01:00
apio	7f8a8cdcaf	kernel, libc: Add an usleep() system call and use that to implement usleep() and sleep() in libc	2023-01-22 15:00:20 +01:00
apio	d5b1d72396	x86_64/MMU: Map the kernel page directory to virtual memory ... This avoids depending on the kernel address space to create a new userspace one, since there is no physical memory access. This was fine for a single process, since its address space was created from the kernel one and no more address spaces were created, but for two or more, this started to become problematic, since we would create one address space while being in another process's address space, which has no direct mapping of physical memory.	2023-01-22 14:46:03 +01:00
apio	a7a38d3433	Bitmap: Add a fallible variant of match_region() that does not crash if arguments are out of range ... This lets us call deallocate_memory() with any address and it will not crash.	2023-01-22 14:25:51 +01:00
apio	cb59a4e0e3	libc: Add assert.h	2023-01-22 12:51:30 +01:00
apio	34a9b35037	Option, Result: Propagate caller locations when erroring out	2023-01-22 12:00:52 +01:00
apio	0126a8fb6e	luna: Add a new SourceLocation class and use that in check() and expect()	2023-01-22 11:43:48 +01:00
apio	129297a0b0	CString: Fix compilation in strnlen()	2023-01-22 11:43:10 +01:00
apio	cf8d3c6ff9	OwnedStringView: Add a method to extract a substring	2023-01-22 11:27:54 +01:00
apio	12d2039f68	CString: Add strnlen() and strndup()	2023-01-22 11:27:37 +01:00
apio	944d32de36	Bitmap: Introduce new malloc-aware initialization functions ... Lets us call resize(new_size) instead of initialize(realloc(location, new_size), new_size)	2023-01-21 23:16:50 +01:00
apio	0e607c2fef	Bitmap: Declare more variables as const ... I miss Rust's immutability-by-default...	2023-01-21 23:04:21 +01:00
apio	a6974b605e	tools+CMake: Prefix all environment variables with LUNA_	2023-01-21 22:44:16 +01:00
apio	a3d0fa7d0a	UserVM: Validate the entire range when freeing multiple VM pages	2023-01-16 21:16:38 +01:00
apio	631cdd0204	x86_64/CPU: Skip null instruction pointers on stack trace generation	2023-01-16 20:44:45 +01:00
apio	c374c25523	Convert some FIXMEs into NOTES	2023-01-16 20:30:35 +01:00
apio	1d92784608	luna, kernel: Replace some uses of char by truly 1-byte wide types	2023-01-16 19:52:34 +01:00
apio	329e8ab182	luna/Heap: Scrub reallocations properly	2023-01-16 19:50:35 +01:00