Zachary Amsden wrote:
Rusty Russell wrote:
Rene Herman wrote:
Hmm, by the way, if romsignature() needs this
probe_kernel_address() thing, why doesn't romchecksum()?
I assume it's all in the same page, but CC'ing Zach is easier than
reading the code 8)
Some hypervisors don't emulate the traditional physical layout of the
first 1M of memory, so those pages might never get physical mappings
established during the boot process, causing access to them to
fault. Presumably, if the first page is there with a good signature,
the entire ROM is mapped. I think Jeremy added this for Xen, and
it's harmless on native hardware.
Jeremy? Is it okay to only check the signature word? The checksum will
generally be done over more than 1 (hw) page... That "presumably" there
seems a bit flaky?
Rene.
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
