Hi Paolo,
On 06/13/2018 11:56 AM, Paolo Bonzini wrote:
> On 12/06/2018 21:05, Eric Auger wrote:
>> When an IOMMUMemoryRegion is in front of a virtio device,
>> address_space_cache_init does not set cache->ptr as the memory
>> region is not RAM. However when the device performs an access,
>> we end
On 12/06/2018 21:05, Eric Auger wrote:
> When an IOMMUMemoryRegion is in front of a virtio device,
> address_space_cache_init does not set cache->ptr as the memory
> region is not RAM. However when the device performs an access,
> we end up in glue() which performs the translation and then uses
> M
On Wed, Jun 13, 2018 at 08:31:31AM +0200, Auger Eric wrote:
> Hi Peter,
>
> On 06/13/2018 05:15 AM, Peter Xu wrote:
> > On Tue, Jun 12, 2018 at 09:05:25PM +0200, Eric Auger wrote:
> >> When an IOMMUMemoryRegion is in front of a virtio device,
> >> address_space_cache_init does not set cache->ptr a
Hi Peter,
On 06/13/2018 05:15 AM, Peter Xu wrote:
> On Tue, Jun 12, 2018 at 09:05:25PM +0200, Eric Auger wrote:
>> When an IOMMUMemoryRegion is in front of a virtio device,
>> address_space_cache_init does not set cache->ptr as the memory
>> region is not RAM. However when the device performs an a
On Tue, Jun 12, 2018 at 09:05:25PM +0200, Eric Auger wrote:
> When an IOMMUMemoryRegion is in front of a virtio device,
> address_space_cache_init does not set cache->ptr as the memory
> region is not RAM. However when the device performs an access,
> we end up in glue() which performs the translat
When an IOMMUMemoryRegion is in front of a virtio device,
address_space_cache_init does not set cache->ptr as the memory
region is not RAM. However when the device performs an access,
we end up in glue() which performs the translation and then uses
MAP_RAM. This latter uses the unset ptr and return
