Re: [PATCH v2] NOMMU: add support for Memory Protection Units (MPU)

[David Howells]

Bernd Schmidt <bernds_cb1@xxxxxxxxxxx> wrote:

> No page table, just three bitmaps (r/w/x), with one bit per page, per mm.

I presume that all you do is maintain a distinction between
userspace-accessible areas and kernel-only areas, and don't prevent userspace
processes from destroying each other.

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/