On 30/04/2019 21:24, Jacob Pan wrote:
> On Thu, 25 Apr 2019 11:41:05 +0100
> Jean-Philippe Brucker wrote:
>
>> On 25/04/2019 11:17, Auger Eric wrote:
+/**
+ * ioasid_alloc - Allocate an IOASID
+ * @set: the IOASID set
+ * @min: the minimum ID (inclusive)
+ * @max: the
On Fri, 26 Apr 2019 05:21:15 -0700
Christoph Hellwig wrote:
> On Fri, Apr 26, 2019 at 12:47:43PM +0100, Jean-Philippe Brucker wrote:
> > >> On Tue, Apr 23, 2019 at 04:31:06PM -0700, Jacob Pan wrote:
> > >>> The allocator doesn't really belong in drivers/iommu because
> > >>> some drivers would
On Fri, Apr 26, 2019 at 12:47:43PM +0100, Jean-Philippe Brucker wrote:
> >> On Tue, Apr 23, 2019 at 04:31:06PM -0700, Jacob Pan wrote:
> >>> The allocator doesn't really belong in drivers/iommu because some
> >>> drivers would like to allocate PASIDs for devices that aren't
> >>> managed by an
On 25/04/2019 19:19, Jacob Pan wrote:
> Hi Christoph,
>
> On Tue, 23 Apr 2019 23:19:03 -0700
> Christoph Hellwig wrote:
>
>> On Tue, Apr 23, 2019 at 04:31:06PM -0700, Jacob Pan wrote:
>>> The allocator doesn't really belong in drivers/iommu because some
>>> drivers would like to allocate PASIDs
Hi Christoph,
On Tue, 23 Apr 2019 23:19:03 -0700
Christoph Hellwig wrote:
> On Tue, Apr 23, 2019 at 04:31:06PM -0700, Jacob Pan wrote:
> > The allocator doesn't really belong in drivers/iommu because some
> > drivers would like to allocate PASIDs for devices that aren't
> > managed by an IOMMU,
On 25/04/2019 11:17, Auger Eric wrote:
>> +/**
>> + * ioasid_alloc - Allocate an IOASID
>> + * @set: the IOASID set
>> + * @min: the minimum ID (inclusive)
>> + * @max: the maximum ID (exclusive)
>> + * @private: data private to the caller
>> + *
>> + * Allocate an ID between @min and @max (or %0
Hi Jean-Philippe, Jacob,
On 4/24/19 1:31 AM, Jacob Pan wrote:
> From: Jean-Philippe Brucker
>
> Some devices might support multiple DMA address spaces, in particular
> those that have the PCI PASID feature. PASID (Process Address Space ID)
> allows to share process address spaces with devices
On Tue, Apr 23, 2019 at 04:31:06PM -0700, Jacob Pan wrote:
> The allocator doesn't really belong in drivers/iommu because some
> drivers would like to allocate PASIDs for devices that aren't managed by
> an IOMMU, using the same ID space as IOMMU. It doesn't really belong in
> drivers/pci either
From: Jean-Philippe Brucker
Some devices might support multiple DMA address spaces, in particular
those that have the PCI PASID feature. PASID (Process Address Space ID)
allows to share process address spaces with devices (SVA), partition a
device into VM-assignable entities (VFIO mdev) or
