Commit Graph

34 Commits

Author SHA1 Message Date
Daniel Samson 1b47de5058
allocate AP kernel/IST stacks at bring-up, not statically
Hoist max_cpus into danos (root.zig), raise it to 128, and stop reserving a static [max_cpus][16 KiB] IST array. Only the BSP's IST stack is static (needed before the allocator); each AP's is heap-allocated when it comes online. Shrinks the kernel from ~1.1 MB to ~139 KiB in ReleaseSmall.
2026-07-08 16:04:18 +01:00
Daniel Samson 26ac97df31
test fault-on-AP and affinity; report the faulting core
fault-ap-df pins a #DF to an AP (its own IST must catch it); affinity checks a pinned task never migrates. onException now names the core, so an AP fault is attributed and shown contained. Both teeth-checked.
2026-07-08 14:45:28 +01:00
Daniel Samson 37f72a4df8
add thread affinity: pin a task to a core
spawnOn(entry, priority, cpu) routes to a per-core pinned queue, merged with the global queue at O(1) selection. Falls back to unpinned for an offline/invalid core.
2026-07-08 14:45:28 +01:00
Daniel Samson debe815a5c
keep the AP trampoline inert between wakes, and retry failed cores
Arm the low frame (copy blob, make executable) only while a core climbs, then zero it and restore RW+NX; the frame stays reserved so cores can be re-woken. startSecondary is one re-runnable attempt; boot retries a non-responding core 3x. Validated the retry path by forcing a first-attempt failure.
2026-07-08 13:32:34 +01:00
Daniel Samson 43afe6bf2e
schedule tasks across all cores
Per-core GDT/TSS and AP scheduler entry; fix AP SSE + single_threaded.
2026-07-08 12:35:30 +01:00
Daniel Samson ed7f542006
wake application processors to long mode
INIT-SIPI-SIPI plus a self-relocating real-mode trampoline.
2026-07-08 12:35:30 +01:00
Daniel Samson cf7c6df41c
enumerate usable CPU cores from the MADT
Keep each Local APIC's id and expose platform.cpus().
2026-07-08 12:35:30 +01:00
Daniel Samson 26d2f5259c
document the multi-sink logging model 2026-07-08 10:41:47 +01:00
Daniel Samson 7d3417fe86
refactor kernel to use device platform discovery 2026-07-08 10:06:46 +01:00
Daniel Samson 2ee898a91e
add device platform module with ACPI support 2026-07-08 09:23:41 +01:00
Daniel Samson 6f6ccc8bc9 moving kernel code to kernel/ 2026-07-05 10:19:11 +01:00
Daniel Samson 7c3cffb337 moving efi code to boot 2026-07-05 10:01:01 +01:00
Daniel Samson d055de7141 documenting things to research 2026-07-03 21:40:59 +01:00
Daniel Samson a6de418e42 documenting smp and scheduling to research 2026-07-03 21:24:44 +01:00
Daniel Samson f9f0511ac2 documenting research for arm and device discovery 2026-07-03 20:22:48 +01:00
Daniel Samson 99d6bf5ce3 renaming run-efi to run-x86-64 2026-07-03 19:45:44 +01:00
Daniel Samson 21b9691486 reclaiming uefi memory 2026-07-03 19:31:32 +01:00
Daniel Samson 31bf86af56 IPC 2026-07-03 15:09:16 +01:00
Daniel Samson df774691c8 Fixed-priority preemptive scheduler 2026-07-03 14:30:33 +01:00
Daniel Samson e80043b611 Calibrated timer / clock 2026-07-03 14:17:00 +01:00
Daniel Samson 269729f2f2 Built heap allocation 2026-07-03 13:41:55 +01:00
Daniel Samson 20b4661ff3 Hardened paging into a real VMM 2026-07-03 13:29:34 +01:00
Daniel Samson d910e6261a Documenting sysv 2026-07-03 13:06:43 +01:00
Daniel Samson 56219b4050 Documenting sysv 2026-07-03 13:06:27 +01:00
Daniel Samson 5ea521d054 Built device interrupts 2026-07-03 12:57:40 +01:00
Daniel Samson c8e89e8115 Cross-architecture test suite 2026-07-03 12:39:26 +01:00
Daniel Samson 9cf135302d Built paging / the kernel's own page tables (with a TSS+IST) 2026-07-03 12:23:55 +01:00
Daniel Samson 0cc71ec8aa Built GDT + IDT + exception handlers 2026-07-03 12:05:41 +01:00
Daniel Samson 6312e84262 added physical memory manager 2026-07-03 11:43:14 +01:00
Daniel Samson cb2f49cb48 added physical memory manager 2026-07-03 11:24:26 +01:00
Daniel Samson 628c4f6d57 Move to multi arch support and added memory map 2026-07-03 11:11:19 +01:00
Daniel Samson c2435760c4 Add README file in docs 2026-07-03 10:31:08 +01:00
Daniel Samson 6a08081bfe selecting the displays native resolution 2026-07-03 10:07:51 +01:00
Daniel Samson 21cc0c87e4 setup framebuffer with console 2026-07-03 09:32:15 +01:00