TODO revision 1.6 
1$ NetBSD: TODO,v 1.1 2018/04/14 12:06:03 scole Exp $
2
3What works:
4  The ski simulator (pkgsrc/emulators/ski) works on NetBSD/i386, can run
5  and step through in assembly.
6
7  Netbooting may work on some machines, basically you need to boot
8  diskless with the loader.efi (from src/sys/arch/ia64/stand/ia64/)
9  using dhcpd and put the kernel in a nfs accessible directory.  There
10  is info here https://www.netbsd.org/docs/network/netboot/ and
11  http://gnats.netbsd.org/49717 about how to setup.
12
13  Also, a successful report of booting off the CD is here
14  http://mail-index.netbsd.org/port-ia64/2009/06/18/msg000102.html
15
16Tasks remaining:
17- context switching and forking appear unfinished,
18  vm_machdep.c::cpu_lwp_fork() appears incomplete
19- pmap module, imported from freebsd but still needs more work and testing
20- IA64 Stack unwind code: Support remaining unwind descriptor
21  types. (See arch/ia64/unwind/TODO). ddb() traces need to print line
22  information also.  Seems like there are a few options:
23   1) fix and finish current unwind that is minimal, incomplete, and buggy
24   2) import FreeBSD/ia64 implementation, may be derived from HP originally:
25      http://lists.llvm.org/pipermail/cfe-dev/2016-September/050649.html
26   3) import this version
27      https://www.nongnu.org/libunwind/man/libunwind-ia64(3).html
28      originally written by one of ia64 gurus but still looks maintained
29      and portable
30   4) something else
31- kernel with LOCKDEBUG option crashes in pmap startup somewhere
32- redo _regset.h in netbsd style with __greg_t __gregset_t
33- implement ld.elf_so, MK_DYNAMICROOT
34- fix memory detection, on real hardware doesn't find all memory
35- implement interrupts (sacpi & pci)
36- MKGDB for ia64
37- implement fp[gs]etsticky, [make|get|set|swap]context
38- floating point, fenv functions were imported from freebsd, but only compile tested
39- implement core_machdep.c
40- implement __cloneS ptrace.S sbrk.S shmat.S
41- implement kvm_ia64.c
42- implement pmc (performance monitoring counters) for ia64 pmc registers
43- implement ia64 md code for cpuctl, intrctl as needed
44- optional(?) mutex.h/lock_stubs.S, mutex_enter()/mutex_exit() __HAVE_MUTEX_STUBS
45       mutex_spin_enter()/mutex_spin_exit() __HAVE_SPIN_MUTEX_STUBS
46- rwlock.h rw_enter(),rw_exit(),rw_tryenter() __HAVE_RW_STUBS, implemented already?
47- add efipart_dev to read gpt/ffs disks for bootloader
48- sort out bootloader/loader.efi stuff, make it more like netbsd and
49  less like freebsd, command to boot nfs from loader.efi instead of
50  hack that exists now
51- ia64 implement __HAVE_FAST_SOFTINTS?
52- want or need __HAVE_CPU_UAREA_ROUTINES, cpu_uarea_alloc,  cpu_uarea_free
53- fix all "[Nn]ot yet" and "XXX" functions everywhere
54- create/fix sys/arch/ia64/include/pci_machdep.h and implement actual functions,
55  need to handle "multiple" pci busses like from http://www.openpa.net/systems/il/rp3400-bus.txt,
56  add pchb, looks like one here
57   http://mail-index.netbsd.org/port-ia64/2010/06/29/msg000116.html
58  and/or could port from freebsd
59- Kernel module pre-loading via the bootloader
60- SMP
61- write console and/or X framebuffer driver.  freebsd has vgapci
62  device that may be portable
63- add ia32 emulation, port from freebsd
64- installation media for EFI/cdrom/usb
65
66ski emulator tasks:
67- some commands in ski are not yet implemented. 2 important ones
68  are still missing, "cstack" and "pm", which view the stack and
69  source code lines respectively 
70- create a ski network driver
71- create a ski disk driver
72- fix ski to run on other archs beside i386, or at least amd64
73
74Pie in the sky:
75- Xen and itanium!
76- qemu and itanium
77