Okay, now that I've gotten myself thoroughly confused:
host-linux.c:
host_map_page (?) uses a MAP_NR, which returns a Bit32u (?) (where is this
defined, anyway?). It appears that MAP_NR has been replaced by virt_to_page
in 2.4. However, it (apparently) returns a mem_map_t*, as I gather from
linux/include/asm-i386/page.h:
#define virt_to_page(kaddr) (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
And mem_map is defined in linux/include/linux/mm.h to be a mem_map_t*
(which is a *struct). It appears that either some semantics have changed, or
the original MAP_NR code was flawed, or (most likely) I am missing something
big here. It appears that host_map_page is supposed to give the host memory
map for a given guest page, but on that account I am uncertain.
This is the main point at which plex86 does not work for 2.4. With 2.4 coming
out soon, this had better get fixed. So would somebody more enlighened in
kernel hacking spread some of that enlightenment around?
Kenneth
(Trying to get plex86 running on 2.4, to no avail)
