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

Re: [Xen-devel] [PATCH for-4.12 v3 4/5] xen/arm: Implement Set/Way operations

Hi Andrew,

On 12/14/18 9:31 PM, Andrew Cooper wrote:
On 14/12/2018 03:58, Julien Grall wrote:
Set/Way operations are used to perform maintenance on a given cache.
At the moment, Set/Way operations are not trapped and therefore a guest
OS will directly act on the local cache. However, a vCPU may migrate to
another pCPU in the middle of the processor. This will result to have
cache with stall data (Set/Way are not propagated) potentially causing

s/stall/stale/ ?

Yes. I tend to confuse the both a lot.



Julien Grall

Xen-devel mailing list



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