[bcc-ed to some recent committers to boot2.c]
Hi,
for some stuff I am doing with picobsd (and i think in general this
is useful) it would be nice to know where the kernel was loaded
from. In /sys/boot/i386/boot2/boot2.c this information is stored
in three 8-bit variables:
dsk.drive also goes into bootinfo.bi_bios_dev
dsk.slice
dsk.part
Although the latter two are not made available to the kernel,
there are two empty 8-bit fields in struct bootinfo
u_int8_t bi_pad[2];
which could do the job without breaking binary compatibility.
Any objection on exporting dsk.slice and dsk.part into the bi_pad
fields, possibly starting from 1 so the kernel can tell an uninitialized
value from a good one ?
(and together with this, perhaps a sysctl variable which builds a
device name from these three values...)
cheers
luigi
----------------------------------+-----------------------------------------
Luigi RIZZO, [EMAIL PROTECTED] . ICSI (on leave from Univ. di Pisa)
http://www.iet.unipi.it/~luigi/ . 1947 Center St, Berkeley CA 94704
Phone: (510) 666 2927
----------------------------------+-----------------------------------------
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
