[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] WP flag in CR0, setting

On 17 Jun 2006, at 01:50, Nakajima, Jun wrote:

It should be working in HVM guest. See, for example:

Memory: 3040444k/3071992k available (1918k kernel code, 30156k reserved,
775k data, 176k init, 2154492k highmem)
Checking if this processor honours the WP bit even in supervisor mode...
Calibrating delay using timer specific routine.. 4803.94 BogoMIPS

That shows it honours CR0.WP=1, which is all Linux cares about. Linux never sets CR0.WP=0 so that case is probably not tested.

 -- Keir

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.