On Wed, Apr 30, 2025 at 05:54:41PM -0700, Nicolin Chen wrote:
> On Wed, Apr 30, 2025 at 03:39:22PM -0700, Nicolin Chen wrote:
> > On Wed, Apr 30, 2025 at 09:59:13PM +, Pranjal Shrivastava wrote:
> > > > enum iommu_viommu_type {
> > > > IOMMU_VIOMMU_TYPE_DEFAULT = 0,
> > > > IOM
On Wed, Apr 30, 2025 at 03:39:15PM -0700, Nicolin Chen wrote:
> On Wed, Apr 30, 2025 at 09:59:13PM +, Pranjal Shrivastava wrote:
> > On Fri, Apr 25, 2025 at 10:58:16PM -0700, Nicolin Chen wrote:
> > > The CMDQV HW supports a user-space use for virtualization cases. It allows
> > > the VM to iss
On Wed, Apr 30, 2025 at 03:39:22PM -0700, Nicolin Chen wrote:
> On Wed, Apr 30, 2025 at 09:59:13PM +, Pranjal Shrivastava wrote:
> > > enum iommu_viommu_type {
> > > IOMMU_VIOMMU_TYPE_DEFAULT = 0,
> > > IOMMU_VIOMMU_TYPE_ARM_SMMUV3 = 1,
> > > + IOMMU_VIOMMU_TYPE_TEGRA241_CMDQV = 2,
> > > +
On Wed, Apr 30, 2025 at 09:59:13PM +, Pranjal Shrivastava wrote:
> On Fri, Apr 25, 2025 at 10:58:16PM -0700, Nicolin Chen wrote:
> > The CMDQV HW supports a user-space use for virtualization cases. It allows
> > the VM to issue guest-level TLBI or ATC_INV commands directly to the queue
> > and
On Fri, Apr 25, 2025 at 10:58:16PM -0700, Nicolin Chen wrote:
> The CMDQV HW supports a user-space use for virtualization cases. It allows
> the VM to issue guest-level TLBI or ATC_INV commands directly to the queue
> and executes them without a VMEXIT, as HW will replace the VMID field in a
> TLBI
On Wed, Apr 30, 2025 at 01:17:48AM +0530, ALOK TIWARI wrote:
> > + /*
> > +* @length must be a power of 2, in range of
> > +* [ 32, 1 ^ (idr[1].CMDQS + CMDQ_ENT_SZ_SHIFT) ]
>
> 2 ^ (idr[1].CMDQS + CMDQ_ENT_SZ_SHIFT) or 1 << idr[1].CMDQS
>
> > +*/
> > + max_n_shift = FIELD_GET(ID
Hi Nicolin,
On 26-04-2025 11:28, Nicolin Chen wrote:
The CMDQV HW supports a user-space use for virtualization cases. It allows
the VM to issue guest-level TLBI or ATC_INV commands directly to the queue
and executes them without a VMEXIT, as HW will replace the VMID field in a
TLBI command and
