sbos.git/kernel/arch/i386, branch master Unnamed repository; edit this file 'description' to name the repository. https://git.kling.gg/sbos.git/atom?h=master 2024-12-14T15:29:45+00:00 mmu: Remove recursion in ksbrk 2024-12-14T15:29:45+00:00 Anton Kling anton@kling.gg 2024-12-14T15:29:45+00:00 urn:sha1:36a627c83e3e91bad7482efd0b7af2de5d53902a Due to buggy edge cases it caused logic bugs which caused stack overflows. There should be no need to make any additional checks after the table was created anyways so it is better to just skip it. mmu: Make certain allocations physical and virtual mapping linear 2024-12-09T18:17:57+00:00 Anton Kling anton@kling.gg 2024-12-09T17:35:54+00:00 urn:sha1:e7272b29feb855f4678c5c510d331f297351d3a2 Previously it was possible for fragmentation to occur and as a result certain allocations would have a linear virtual address space but not a linear physical address space. This is bad since a lot of calls to kmalloc_align rely upon both being linear, it has now been changed such that all allocations done by kmalloc_align now guarantee this mapping holds for both virtual and physical addresses. It was due to oversight and sheer luck that this had been working for so long. changes 2024-11-27T23:12:17+00:00 Anton Kling anton@kling.gg 2024-11-27T23:06:09+00:00 urn:sha1:54869df7835565d0983096f65326cdd2d5f4f3d8 kernel/mmu: Make sure to check for NULL. 2024-10-29T23:27:56+00:00 Anton Kling anton@kling.gg 2024-10-29T23:27:56+00:00 urn:sha1:d5388ad5d06174598ced78f642b9f0d165f81fdf Kernel/MMU: Don't return non present pages unless creation is desired 2024-10-12T14:26:34+00:00 Anton Kling anton@kling.gg 2024-10-12T14:24:32+00:00 urn:sha1:edca64134a9873f32379b2b83bd925ecca1c19b1 `get_page` is a horrible multipurpose function and at this point I am unsure what behavior I expect and have expected it to produce. Refactor should probably be done soon. Kernel/Time: Improve time keeping 2024-07-03T16:30:51+00:00 Anton Kling anton@kling.gg 2024-07-03T16:30:51+00:00 urn:sha1:4e7918753175dbd8fc38bc7c5b176517e1dbef2f This makes use of TSC and now provides a file system interface for userland programs to change the system time. Kernel: Add simple support for timer using TSC 2024-07-02T23:21:28+00:00 Anton Kling anton@kling.gg 2024-07-02T23:21:16+00:00 urn:sha1:dd9aece19f93c1cafe07dfc0e63e1599a06db04b Kernel: Add clock_gettime 2024-06-30T17:46:55+00:00 Anton Kling anton@kling.gg 2024-06-30T17:46:55+00:00 urn:sha1:46bb33a3f42d7b64af9bd56f6c086061f0ac14fc Kernel: Code cleanup 2024-06-26T19:20:47+00:00 Anton Kling anton@kling.gg 2024-06-26T19:17:06+00:00 urn:sha1:edf86881446717b633dbb2aaac7b25dbc4630c3f Kernel: Fix small out of memory issues 2024-06-23T21:55:03+00:00 Anton Kling anton@kling.gg 2024-06-23T21:55:03+00:00 urn:sha1:f37e21114750c066a1b9f9d8e789185746fd1c45