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Dynamic switch table (B2) -- FABRIC-3.6.md task 3.1

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Replaces the fixed SK_SWITCH_MAX_SLOTS=16 compile-time array with a
boot-time, RAM-derived allocation via a new sk_vm_switch_signal_boot_init(),
kmalloc'd to stadium_max_vm_count() entries -- the same pattern
session_boot_init() already established for Stadium-derived sizing.
Every switch-signal participant is a Stadium VM, so this reuses that
bound directly rather than deriving a separate one.

Verified live on all three architectures: switch table sized to 50
slots (amd64), 202 slots (aarch64), 50 slots (riscv64) -- all well
past the old fixed cap. All three boot to [zuse@Hera] ok> cleanly;
dict_hash for Hermes/Hestia identical across architectures, unmoved
from pre-task values.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Robert Allan James
2026-09-21 23:59:50 -04:00
co-authored by Claude Sonnet 5
parent 66ea4a5e74
commit c19ef365fe
9 changed files with 37220 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files
logs/20260921-234744/riscv64/qemu-riscv64-20260921-234744.log
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OpenSBI v1.8
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : medeleg
Platform HART Count : 1
Platform HART Protection : pmp
Platform IPI Device : aclint-mswi
Platform Timer Device : aclint-mtimer @ 10000000Hz
Platform Console Device : uart8250
Platform HSM Device : ---
Platform PMU Device : ---
Platform Reboot Device : syscon-reboot
Platform Shutdown Device : syscon-poweroff
Platform Suspend Device : ---
Platform CPPC Device : ---
Firmware Base : 0x80000000
Firmware Size : 321 KB
Firmware RW Offset : 0x40000
Firmware RW Size : 65 KB
Firmware Heap Offset : 0x47000
Firmware Heap Size : 37 KB (total), 0 KB (reserved), 12 KB (used), 23 KB (free)
Firmware Scratch Size : 4096 B (total), 1464 B (used), 2632 B (free)
Runtime SBI Version : 3.0
Standard SBI Extensions : ipi,pmu,srst,sse,hsm,rfnc,fwft,time,base,legacy,dbcn,dbtr
Experimental SBI Extensions : none
Domain0 Name : root
Domain0 Boot HART : 0
Domain0 HARTs : 0*
Domain0 Region00 : 0x0000000080040000-0x000000008005ffff M: (F,R,W) S/U: ()
Domain0 Region01 : 0x0000000080000000-0x000000008003ffff M: (F,R,X) S/U: ()
Domain0 Region02 : 0x0000000000100000-0x0000000000100fff M: (I,R,W) S/U: (R,W)
Domain0 Region03 : 0x0000000010000000-0x0000000010000fff M: (I,R,W) S/U: (R,W)
Domain0 Region04 : 0x0000000002000000-0x000000000200ffff M: (I,R,W) S/U: ()
Domain0 Region05 : 0x000000000c400000-0x000000000c5fffff M: (I,R,W) S/U: (R,W)
Domain0 Region06 : 0x000000000c000000-0x000000000c3fffff M: (I,R,W) S/U: (R,W)
Domain0 Region07 : 0x0000000000000000-0xffffffffffffffff M: () S/U: (R,W,X)
Domain0 Next Address : 0x0000000020000000
Domain0 Next Arg1 : 0x00000000bfe00000
Domain0 Next Mode : S-mode
Domain0 SysReset : yes
Domain0 SysSuspend : yes
Boot HART ID : 0
Boot HART Domain : root
Boot HART Priv Version : v1.12
Boot HART Base ISA : rv64imafdch
Boot HART ISA Extensions : sstc,zicntr,zihpm,zicboz,zicbom,sdtrig,svadu
Boot HART PMP Count : 16
Boot HART PMP Granularity : 2 bits
Boot HART PMP Address Bits : 54
Boot HART MHPM Info : 16 (0x0007fff8)
Boot HART Debug Triggers : 2 triggers
Boot HART MIDELEG : 0x0000000000001666
Boot HART MEDELEG : 0x0000000000f4b509
[=3hRISC-V EDK2 firmware version 2025.11-3ubuntu7.2
Press ESCAPE within 5 seconds for boot options ERROR: C40000002:V03051002 I0 6D33944A-EC75-4855-A54D-809C75241F6C 83FFF850
BdsDxe: failed to load Boot0001 "UEFI Misc Device" fr
om PciRoot(0x0)/Pci(0x1,0x0): Not Found
[=3hStarKernel UEFI Loader
Loading kernel from ESP...
[CKPT 001] Entered efi_main - ConOut live