Hi! > From: Rafael J. Wysocki <rjw@xxxxxxx> > > Since we already pass the address of restore_registers() in the image header, > we can also pass the value of the CR3 register from before the hibernation in > the same way. This will allow us to avoid using init_level4_pgt page tables > during the restore. > > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> > @@ -283,7 +290,8 @@ int arch_hibernation_header_save(void *a > if (max_size < sizeof(struct restore_data_record)) > return -EOVERFLOW; > rdr->jump_address = restore_jump_address; > - rdr->control = (restore_jump_address ^ RESTORE_MAGIC); > + rdr->cr3 = restore_cr3; > + rdr->control = (restore_jump_address ^ (restore_cr3 ^ RESTORE_MAGIC)); > return 0; Does control want to be renamed as "crc"? Or perphaps we want to just store MAGIC there, w/o any obfuscation, since obfuscation does not really buy us anything? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
