TODO revision 1.34 
1/* $NetBSD: TODO,v 1.34 2021/02/22 10:30:57 palle Exp $ */
2
3Things to be done:
4
5common:
6- make %g6 point to curcpu
7- make %g7 point to curlwp
8- change run-time checks for cpu type to function pointers
9
10sun4u:
11- GENERIC.UP kernel hangs on v445 (missing interrupt?)
12
13sun4v:
14 - current status
15     T5 ldom with 2 VCPU and 4GB:
16       The kernel boots and starts userland when booting miniroot.fs.
17       The sysinst tool starts properly and requests terminal type.
18	   Upon entering characters on the console, a crash occurs inside
19	   OpenBoot (properly trashed registers).
20	 T2000 ldom with 8 VCPU and 4GB:
21	   On this platform it crashes in /sbin/init doing an access() call where %o0 is corrupted (zero)
22- 64-bit kernel support
23- 32-bit kernel support
24- libkvm
25- ofwboot: tlb_init_sun4v() hardcodes number of slots to 64
26- locore.s: sun4v_datatrap missing implementation for trap level 1
27- check build without SUN4V defined
28- replace relevant references to %ver with GET_MAXCWP
29- pmap_mp_init(): sun4v missing handling
30- replace constructs like "wrpr %g0, PSTATE_KERN, %pstate" with NORMAL_GLOBALS
31- replace constructs line "wrpr %g0, PSTATE_INTR, %pstate" with ALTERNATE_GOBALS
32- sun4v tsb no need to lock... per cpu... anyway...
33- ci_tsb_desc->td_ctxidx: -1 or 1?
34- MP support - currently bypassed in pmap_bootstrap() for sun4v
35- vpci.c/vpcivar.h: cleanup FIXMEs
36- interrupts not handled properly (com at ebus only...)
37- mpt(4) complains: mpt0: Phy 0: Link Status Unknown
38- man pages for drivers imported from OpenBSD lke vpci, vbus, cbus, vdsk, ldc etc.
39- vdsk and ldc drivers: code maked with OPENBSD_BUSDMA - make the bus_dma stuff work properly
40- vbus.c: handle prom_getprop() memory leaks
41- locore.s: rft_user (sun4v specific manaul fill) - seems to work, but is it good enough (compared to openbsds rft_user?
42 - platforms tested so far:
43 -- qemu sun4v/niagara - reaches the point where the kernel needs to mount a root fs
44 -- T2000 - mmu fault somewhere
45 -- T5 - stickcmpr is not properly initialized ???
46