K 10
svn:author
V 6
tsoome
K 8
svn:date
V 27
2019-01-13T07:25:55.478922Z
K 7
svn:log
V 283
MFC: r342619, r342626

loader: create bio_alloc and bio_free for bios bounce buffer

We do have 16KB buffer space defined in pxe.c, move it to bio.c and implement
bio_alloc()/bio_free() interface to make it possible to use this space for
other BIOS calls (notably, from biosdisk.c).

END