| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2024-08-03 | kernel: send user interrupt on page fault | dzwdz | |
| I really should just rename interrupts to something else. This is inspired by Plan9 and meant to make debugging easier, as the dying process can take a stacktrace etc. It kinda sucks that the default handler now depends on fprintf, which is quite a bit of code, but whatever. | |||
| 2024-08-02 | kernel/interrupts: use UserRegs in the isr handler | dzwdz | |
| 2024-08-02 | *: use a generic UserRegs type everywhere I'm storing registers | dzwdz | |
| mostly inspired by Plan 9's Ureg, probably obvious from the name | |||
| 2024-07-27 | kernel: don't use pointer types for registers, add proc_savereturn | dzwdz | |
| 2024-07-25 | kernel: set up the GDT in assembly | dzwdz | |
| This is just for simplicity's sake. I think I could even omit the `movw $TSS, (GdtTss + 2)` and have the linker fill that out as a relocation, but that would probably be more complex overall. | |||
| 2024-07-22 | kernel: explicitly store process RIP and RFLAGS | dzwdz | |
| Once again, needed for the interrupt return syscall. Seems to have made the kernel slower in timebench? | |||
| 2024-07-22 | kernel: use IRET instead of SYSRET for switching into usermode | dzwdz | |
| I want to implement a new syscall for returning from "interrupts" (my crappy take on Plan 9's notes / UNIX signals), and I've realized that I can't use SYSRET for that, as it clobbers RCX and R11. This hasn't been an issue so far, as I've only been switching into usermode to return from syscalls, but now I might be switching into it at arbitrary moments (right after an interrupt handler recovers from a page fault, etc). I could make it so I switch between IRET and SYSRET depending on the context, but I don't think it's worth it. | |||
| 2024-07-22 | kernel/isr: improve interrupt handling code | dzwdz | |
| On the assembly side, ensure the stack frame looks always the same, by pushing a fake "error code" for the interrupts that don't generate one. On the C side, use a struct instead of magic indices into an "array", and make it consistent with the current style. | |||
| 2024-07-17 | kernel: make kmalloc accept a numeric "tag" instead of a freeform description | dzwdz | |
| This will both let me save space in the allocation header, and make the debugprint more readable. | |||
| 2024-07-14 | kernel: make the adhoc VfsQueue queues use ReqQueue instead | dzwdz | |
| I'm still not sure if I should use sys/queue.h for this. But yeah, this is more consistent, and it will also let me switch over to O(1) insertions later on. | |||
| 2024-07-14 | kernel: rework postqueue | dzwdz | |
| Keeping its old name for now to make things easier for myself. This might just be replaced by sys/queue.h soon. | |||
| 2024-07-11 | kernel: start cleaning up VfsRequest | dzwdz | |
| * I'm being more strict about the linked list state to hopefully ensure I'm not leaking any references. * vfsreq_create was renamed to vfsreq_dispatchcopy as that name feels more clear. It copies its argument, and dispatches it. * Requests for user backends are now handled more like requests for kernel backends - there's an accept() function that accepts a request. | |||
| 2024-05-19 | kernel: implement /dev/bintime | dzwdz | |
| 2024-05-05 | net: expose the rtl mac to userland, make the netstack use it | dzwdz | |
| 2024-05-04 | kernel/rtl8139: prepare for /dev/eth/mac | dzwdz | |
| 2024-03-13 | kernel/malloc: slight rework (it's still bad), store more metadata | dzwdz | |
| 2024-03-13 | kernel/amd64: print debugging info on NMI | dzwdz | |
| the vm isn't getting an NMI for any real reason anyways, so I might as well abuse it | |||
| 2023-09-29 | kernel: fix linked list iteration in postqueue | dzwdz | |
| 2023-09-19 | kernel: use HPET timer for sleeps | dzwdz | |
| not strictly necessary, but this should improve: 1. sleep performance 2. power efficiency when idle | |||
| 2023-09-17 | kernel/amd64: add HPET support, slightly rework time handling | dzwdz | |
| 2023-09-15 | kern: fix GDT order for 64bit sysret | dzwdz | |
| 2023-09-13 | cmd/init: remove /initctl, use intr instead | dzwdz | |
| 2023-09-11 | *: rename /kdev/ to /dev/ | dzwdz | |
| 2023-09-09 | kernel: gracefully handle no serial port | dzwdz | |
| 2023-09-09 | kernel: build /kdev/ on the fly | dzwdz | |
| 2023-09-07 | kernel: slightly refactor the page allocator | dzwdz | |
| 2023-09-06 | boot: compress the init module | dzwdz | |
| 2023-09-03 | misc: remove old debug prints | dzwdz | |
| the rtl8139 mac wasn't being read correctly anyways, and the init stuff wasn't revelant in ages. the rest is relatively useful | |||
| 2023-08-30 | style: get rid of eprintf | dzwdz | |
| 2023-08-13 | kern: undo accidentally commited debug code | dzwdz | |
| 2023-08-06 | kernel: put every driver in /kdev/ | dzwdz | |
| there's no real reason for bootstrap to be doing that, and this brings it closer to only doing the elf loading | |||
| 2023-06-17 | kernel: fix procfs overflow bug, add safeguard to prevent similar ones | dzwdz | |
| 2023-02-23 | build: don't -Isrc/ in user code | dzwdz | |
| 2023-02-23 | fix: misc warnings | dzwdz | |
| 2023-01-25 | clean up the repo root | dzwdz | |
| 2023-01-25 | kernel: move /mem/alloc to /malloc and linker.ld to arch/amd64/ | dzwdz | |
| 2023-01-25 | kernel/driver: consolidate most header files into driver.h | dzwdz | |
| 2023-01-25 | kernel/irq: use a lookup table for irqs | dzwdz | |
| 2023-01-25 | kernel: consolidate some header files | dzwdz | |
| 2023-01-25 | style: typedef structs, shorter namespaces | dzwdz | |
| I've wanted to do this for a while, and since I've just had a relatively large refactor commit (pcpy), this is as good of a time as any. Typedefing structs was mostly inspired by Plan 9's coding style. It makes some lines of code much shorter at basically no expense. Everything related to userland kept old-style struct definitions, so as not to force that style onto other people. I also considered changing SCREAMING_ENUM_FIELDS to NicerLookingCamelcase, but I didn't, just in case that'd be confusing. | |||
| 2023-01-25 | kernel/virt: replace the virt_cpy api with a more foolproof one | dzwdz | |
| 2023-01-24 | kern/driver/ps2: remove unused function | dzwdz | |
| 2022-12-27 | amd64/ata: poll properly | dzwdz | |
| 2022-12-26 | amd64/ata: write support | dzwdz | |
| 2022-12-26 | amd64/ata: refactor the ATA driver | dzwdz | |
| 2022-09-03 | driver/ps2,serial: handle all pending reads at the same time | dzwdz | |
| 2022-09-01 | kernel: add a debug print for the amount of used memory | dzwdz | |
| 2022-08-28 | kernel/amd64: SSE support | dzwdz | |
| 2022-08-28 | kernel/driver: add postqueue_join / postqueue_pop | dzwdz | |
| 2022-08-28 | kernel/driver: clean up ps2, add the reqpathcmp() macro | dzwdz | |
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index : camellia | |
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