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x86_64: add SMP support - #339

Draft

dgruss wants to merge 25 commits into

mainfrom

x86-apic

Draft

x86_64: add SMP support#339
dgruss wants to merge 25 commits into
mainfrom
x86-apic

Commits on Oct 23, 2026
- x86: discover APICs and CPUs through ACPI
  
  Woazboat
  and
  dgruss
  committed
  6bcd3c4
- x86: add local and I/O APIC support
  
  dgruss
  and
  Woazboat
  committed
  589a6e7
- x86: replace PIC interrupt delivery with APIC
  
  dgruss
  and
  Woazboat
  committed
  93ac4f4
- x86_64: use GCC TLS for CPU-local thread state
  
  dgruss
  and
  Woazboat
  committed
  8a5a9e4
- x86_64: give each CPU its own GDT and TSS
  
  dgruss
  and
  Woazboat
  committed
  84d5e09
- x86_64: start secondary CPUs on private stacks
  
  dgruss
  and
  Woazboat
  committed
  b817488
- x86: keep memory accesses inside interrupt-disabled sections
  dgruss
  committed
  6456c45
- kernel: order lock releases with protected accesses
  
  dgruss
  and
  Woazboat
  committed
  92306f9
- kernel: mark waiters sleeping before releasing their list
  
  dgruss
  and
  Woazboat
  committed
  ac9acca
- kernel: run global constructors
  
  dgruss
  and
  Woazboat
  committed
  c542548
- kernel: make the scheduler a CPU-local object
  
  dgruss
  and
  Woazboat
  committed
  85b74b5
- kernel: keep thread cleanup on the owning CPU
  
  dgruss
  and
  Woazboat
  committed
  3fe7779
- x86: keep interrupt bookkeeping CPU-local
  
  dgruss
  and
  Woazboat
  committed
  7014bd4
- x86_64: start local timers and scheduling on secondary CPUs
  dgruss
  committed
  d219c21
- x86_64: stop other CPUs before printing panic diagnostics
  dgruss
  committed
  6136966
- x86_64: wait for TLB invalidation before freeing pages
  
  dgruss
  and
  Woazboat
  committed
  8467a6e
- kernel: serialize lock diagnostics across CPUs
  dgruss
  committed
  fc0fa16
- console: synchronize shared buffers and defer interrupt output
  
  dgruss
  and
  Woazboat
  committed
  6fffbb4
- x86: synchronize ATA requests with interrupt completion
  
  dgruss
  and
  Woazboat
  committed
  d12baa2
- fs: serialize VFS operations across CPUs
  dgruss
  committed
  f4ebb4a
- kernel: distribute new processes across CPU schedulers
  dgruss
  committed
  b441bc6
- build: add core-count configuration targets
  dgruss
  committed
  db9b731
- arm: fix startup before and during global constructors
  dgruss
  committed
  ca1e2f1
- arm: allow masked kernel yields during the sleep handoff
  dgruss
  committed
  24ec6d3
- ci: allow more time for ARM toolchain downloads
  dgruss
  committed
  efb2a0b

Commits

Commits on Oct 23, 2026