On Wed, Apr 15, 2015 at 10:26:52, Ian Campbell wrote:
We would like to use memaccess to perform (1) - but rather than
pausing the VCPU in (2), instead simply directly inject the
exception into the VCPU.
That is, into the VCPUs whose permissions have been modified behind
its back and not
On Fri, Apr 10, 2015 at 17:03:26, Andrew Cooper wrote:
Are you perhaps looking for something similar to Intel #VE support?
Yes, in that we want a way to notify a guest that it has made an access that
violated a stage-2 / EPT permission. However, for our purposes a trap into the
hypervisor
Hi Ian,
Thanks for your reply.
On Tue, Mar 10, 2015 at 16:22:40, Ian Campbell wrote:
What is the recommended way for the donor to transmit a batch of
grant references? I assume that this requires the donor to pack
references into an index page, grant foreign access to the index and
On Wed, Mar 11, 2015 at 10:24:48, Ian Campbell wrote:
I think this gives us two options for grant reference batch transmission:
1. Send the grant references via the ring buffer.
This doesn't require any additional allocations, but means that if
the number of grant references in the batch
On Wed, Mar 11, 2015 at 10:54:25, Ian Campbell wrote:
What sorts of batch sizes are you expecting to see in your use case?
We need to share hundreds of MB, so (assuming a 4kB guest page size)
the batch size can be thousands of grant references.
FWIW, the granularity of a gref is 4kB
