Comment Another Approach (Score 1) 600
It looks like the patent covers a specific approach to DRM at the OS level.
In theory, another approach could be for the kernel to relinquish control of certain pages of memory to a user-level app, removing them from the kernel's VM subsystem altogether. The app could manage those pages using direct bios calls. Since the kernel has no access to those pages, other apps running on top of the kernel couldn't acesss them either. The kernel could wipe the pages when the program exits.
It's possible that this a hairbrained idea since I don't know much about kernels other than what I learned in school (CS LaTech 1998) but maybe not.
Also, does anyone else have any ideas about how to implement DRM (or more generally - protected memory) outside of the MS way?
In theory, another approach could be for the kernel to relinquish control of certain pages of memory to a user-level app, removing them from the kernel's VM subsystem altogether. The app could manage those pages using direct bios calls. Since the kernel has no access to those pages, other apps running on top of the kernel couldn't acesss them either. The kernel could wipe the pages when the program exits.
It's possible that this a hairbrained idea since I don't know much about kernels other than what I learned in school (CS LaTech 1998) but maybe not.
Also, does anyone else have any ideas about how to implement DRM (or more generally - protected memory) outside of the MS way?
