On Wed, Sep 29, 2021 at 01:07:56PM +0100, Jean-Philippe Brucker wrote:
> Yes, so the guest knows the size of GPA it can write into the page table.
> For Arm SMMU the GPA size is determined by both the SMMU implementation
> and the host kernel configuration. But maybe that could also be
> vendor-sp
On Wed, Sep 29, 2021 at 10:44:01AM +, Liu, Yi L wrote:
> > From: Jean-Philippe Brucker
> > Sent: Wednesday, September 22, 2021 10:49 PM
> >
> > On Sun, Sep 19, 2021 at 02:38:45PM +0800, Liu Yi L wrote:
> > > [HACK. will fix in v2]
> > >
> > > IOVA range is critical info for userspace to manag
> From: Jean-Philippe Brucker
> Sent: Wednesday, September 22, 2021 10:49 PM
>
> On Sun, Sep 19, 2021 at 02:38:45PM +0800, Liu Yi L wrote:
> > [HACK. will fix in v2]
> >
> > IOVA range is critical info for userspace to manage DMA for an I/O address
> > space. This patch reports the valid iova ran
On Sun, Sep 19, 2021 at 02:38:45PM +0800, Liu Yi L wrote:
> [HACK. will fix in v2]
>
> IOVA range is critical info for userspace to manage DMA for an I/O address
> space. This patch reports the valid iova range info of a given device.
>
> Due to aforementioned hack, this info comes from the hacke
