739 Commits

Author	SHA1	Message	Date
apio	9248a5b3cc	tmpfs: make the root inode a DirInode instead of a FileInode	2023-02-25 19:08:55 +01:00
apio	cca4743a51	tmpfs: add DirInode skeleton	2023-02-25 19:06:50 +01:00
apio	b71d899b52	tmpfs: rename tmpfs::Inode to tmpfs::FileInode	2023-02-25 18:11:39 +01:00
apio	05b627d037	tmpfs: Make m_next_inode_number atomic	2023-02-25 18:06:23 +01:00
apio	6daad7787a	kernel: Rename FileSystem::root() to root_inode() and add a shortcut for the root filesystem's root inode	2023-02-25 18:05:25 +01:00
apio	ddc4692671	kernel: Make a factory function for filesystem creation of inodes, and add inode numbers ... Now every filesystem must provide fs->create_file_inode() for new inodes :)	2023-02-25 18:03:11 +01:00
apio	5edd316198	kernel: Add a subclass of VFS::Inode to make it easier to implement file inodes	2023-02-25 17:54:01 +01:00
apio	32ada00b72	kernel: Add a guard page to the bootstrap stack so that we can catch more stack overflows	2023-02-25 17:45:41 +01:00
apio	5f6a659fa1	kernel: Enable UBSAN when building in debug mode	2023-02-25 17:45:40 +01:00
apio	d842443869	kernel: Switch to a stack we control for the main task as soon as we leave early boot ... This is probably pointless as the main task only exists up until the point where the Scheduler starts running, but some init code was running into a stack overflow due to the fact that we only had one bootloader-provided page of stack. This should probably be changed afterwards.	2023-02-18 00:18:42 +01:00
apio	4e88a7482c	kernel, luna: Move Spinlock.h to luna	2023-02-14 20:05:00 +01:00
apio	cb4246b98d	kernel: Start working on a VFS implementation using OOP and SharedPtr	2023-02-03 22:20:00 +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	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	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	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	0126a8fb6e	luna: Add a new SourceLocation class and use that in check() and expect()	2023-01-22 11:43:48 +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	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	1b807a4e06	arch/Timer: Make sure ARCH_TIMER_FREQ is a power of two ... (avoid division and modulo, division is slow) Fortunately, GCC will optimize divisions by powers of two to simple bitwise shifts :)	2023-01-16 19:43:05 +01:00
apio	5fb2ff09c7	kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace	2023-01-13 19:27:53 +01:00
apio	139c0b5eb1	Kernel: Make a UserVM wrapper around Bitmap and use that to allocate user VM ... This lets us allocate more than one page of memory from the user side.	2023-01-13 19:05:20 +01:00
apio	7462b764d8	Kernel: Add __cxa_atexit iomplementation	2023-01-13 18:56:05 +01:00
apio	9454b65682	allocate_memory: Respect PROT_NONE	2023-01-12 17:59:17 +01:00
apio	586ca19b62	Add a VERY BASIC and hacky way of allocating memory from userspace ... Only supports one-page allocations and doesn't have libc wrappers, which means it has to be invoked using syscall().	2023-01-11 23:02:42 +01:00
apio	79a5b98d65	Kernel: Keep the user pointer const through copy_from_user()	2023-01-11 19:26:53 +01:00
apio	6e4cd6300d	Kernel: Add copy_from_user() and copy_from_user_typed()	2023-01-11 19:25:28 +01:00
apio	d150c55143	TarStream: Support mode	2023-01-11 18:42:50 +01:00
apio	82b555cf5c	TarStream: Refactor the API to get rid of that awful method in Result ... That method being try_set_value_with_specific_error()	2023-01-11 17:30:53 +01:00
apio	84c82a4e75	luna, kernel: More constness	2023-01-10 19:31:41 +01:00
apio	c83f6c03b5	Bitmap: Add a 'find_and_toggle' method ... Just like find(), but toggles the value when finding it. Avoids doing this manually in MemoryManager and KernelVM.	2023-01-09 18:08:50 +01:00
apio	4287ec6cb0	Bitmap: Introduce a new method 'find' and use it in MM and KernelVM ... This method looks for the first bit with a value, optionally from a starting index, and returns its index. This should be (haven't benchmarked) way faster than the manual way, AKA what MM and KernelVM were doing. This is due to this method using bit and byte manipulation tricks instead of just calling get() until getting the desired result :)	2023-01-09 17:59:52 +01:00
apio	b0e5d02c9a	kernel: Turn off console logging before starting the init process	2023-01-08 15:32:59 +01:00
apio	0c73d69a70	Kernel: Fix shadow 12GiB reserved entry when running QEMU without KVM on ... Fix inspired by: https://github.com/serenityos/serenity/pull/16345	2023-01-07 20:58:12 +01:00
apio	fde1727218	KernelVM: Expand the available VM range	2023-01-07 12:33:00 +01:00