On Sat, Jun 12, 2010 at 04:02:44PM -0700, H. Peter Anvin wrote: > On 06/12/2010 03:26 PM, Josh Triplett wrote: > > > > Everything looks identical except for the region GRUB hooked right below > > the first reserved region; the unhooked version has available memory > > from 0-0x9cbf0, and the hooked version has available memory from > > 0-0x9cba0, then reserved from 0x9cba0-0x9cbec, then 4 bytes of available > > memory, and then the same reserved region as before. > > Actually... are both these done by chainloading Grub (with and without > mapping), or is the unhooked done without chainloading Grub at all? > > To me it looks like something is chaining INT 15h even in the > "unchained" case...
The "unhooked" case still chainloaded from GRUB, just without calling drivemap and thus without hooking anything. I can test without chainloading from GRUB, though to the best of my knowledge GRUB doesn't hook int 15 unless it needs to intercept e820 (and e801 and 88). - Josh Triplett -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100613000742.ga3...@feather
