On Wed, May 07 2014 at 11:11:13 am BST, Alexander Graf <agraf@xxxxxxx> wrote:
> On 05/07/2014 11:57 AM, Marc Zyngier wrote:
>> Huh? What if my guest has usespace using an idmap, with Stage-1 MMU for
>> isolation only (much like an MPU)? R-class guests anyone?
>>
>> Agreed, this is not the general use case, but that doesn't seem to be
>> completely unrealistic either.
>
> Yes, and once that user tries the same without idmap virtio ends up
> overwriting random memory.
And how different is that from the kernel suddenly deciding to use VAs
instead of PAs? Just as broken. Are we going to prevent the kernel from
using virtio?
> It's just not a good idea and I'd much rather see us solve this
> properly with virtio 1.0 really.
Again, what is virtio 1.0 doing here?
M.
--
Jazz is not dead. It just smells funny.
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