"H. Peter Anvin" <[EMAIL PROTECTED]> writes: > Jeremy Fitzhardinge wrote: >> Eric W. Biederman wrote: >>> All it does is set a flag that tells a bootloader. >>> "Hey. I can run when loaded a non-default address, and this is what >>> you have to align me to." >>> >>> All relocation processing happens in the kernel itself. >>> >> >> Is it possible to decompress and extract the kernel image from the >> bzImage without executing it? Ie, is there enough information to find >> the compressed data part of the bzImage by inspection? >> >> At some point we'll need to change the Xen domain builder to handle >> bzImage files, and it would be best if we didn't need to run them. >> > > Probabilistically, you might be able to (search for a gzip header), but > it is *definitely* not guaranteed by protocol.
I suspect the issue isn't so much skipping the decompression but either getting at the Xen ELF notes or bypassing privileged instructions. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
