Commit Graph

146 Commits

Author SHA1 Message Date
Daniel Samson f02259cae0
close audited test gaps: discovery, W^X, power
Add a discovery case (asserts stable ACPI/MADT/FADT/AML facts) and a wx case (audits R+X code vs NX data/rodata/heap/stack via arch.pageExecutable). Wire the existing poweroff/reboot cases into the harness. Suite: 18 -> 22.
2026-07-08 14:17:54 +01:00
Daniel Samson 5940864958
test the trampoline is inert (zeroed + NX) when dormant
Adds paging.isExecutable and arch.trampolinePage; the smp case now asserts the frame is zeroed and non-executable after bring-up. Teeth-checked against a no-op disarm.
2026-07-08 13:46:53 +01:00
Daniel Samson 91f2cfa17b
add smp-retry test for the AP wake retry path
Test hook forces the first wake to fail; the case asserts every core still comes online. Verified it fails when retry is disabled.
2026-07-08 13:41:14 +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 dba3939a0f
add an SMP lock-stress test case
Four pairs push 400k sequenced messages through small channels; checks FIFO order and cross-core execution. Verified to fail with the lock disabled.
2026-07-08 12:45:02 +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 36c29d2d6d
move the running task into per-CPU state
PerCpu.current via the GS base; ready queues stay global.
2026-07-08 12:35:30 +01:00
Daniel Samson 941ab091db
add a big kernel lock for SMP
Guards the scheduler and IPC; held across the context switch.
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 cb63d2e31b
add multi-sink diagnostic log; make framebuffer optional 2026-07-08 10:40:22 +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 53a33a7332
fix debug typos 2026-07-05 19:07:22 +01:00
Daniel Samson 3f17ebf175
rename sched to scheduler 2026-07-05 19:03:07 +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 ae1552414d printing debug messages to serial only 2026-07-05 09:48:06 +01:00
Daniel Samson 6cd6669a8d Add RAM and VRAM footprint 2026-07-05 09:10:59 +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 50f3610768
Update build to run qemu on MacOS 2026-07-03 16:43:00 +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 9a834c91ff Pin zig version to 0.16 LTS 2026-07-03 13:49:47 +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
Daniel Samson ca3c3d131c booting into the kernel 2026-07-01 19:51:06 +01:00
Daniel Samson 3c8656fb25 started project with basic efi setup 2026-07-01 18:32:56 +01:00