Re: [PATCH v2 01/10] arm64: KVM: force cache clean on page fault when caches are off

2014-01-29 Thread Christoffer Dall
On Wed, Jan 22, 2014 at 02:56:33PM +, Marc Zyngier wrote: > In order for the guest with caches off to observe data written > contained in a given page, we need to make sure that page is > committed to memory, and not just hanging in the cache (as > guest accesses are completely bypassing the ca

[PATCH v2 01/10] arm64: KVM: force cache clean on page fault when caches are off

2014-01-22 Thread Marc Zyngier
In order for the guest with caches off to observe data written contained in a given page, we need to make sure that page is committed to memory, and not just hanging in the cache (as guest accesses are completely bypassing the cache until it decides to enable it). For this purpose, hook into the c