This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also implements an API for mapping/unmapping pages for
guest PCI drivers and
Hi Alex,
I posted other pair of patches. While debugging and testing my stuff I
implemented some rough hack to support IOMMU mappings without passing those
hypercalls to the QEMU, this is why I moved pieces of code around - want to
support both QEMU-VFIO and kernel optimized H_PUT_TCE
On Wed, 2012-12-12 at 17:14 +1100, Alexey Kardashevskiy wrote:
On 08/12/12 04:38, Alex Williamson wrote:
+static int __init tce_iommu_init(void)
+{
+ struct pci_dev *pdev = NULL;
+ struct iommu_table *tbl;
+ struct iommu_group *grp;
+
+ /* Allocate and initialize IOMMU groups */
On Wed, 2012-12-12 at 23:34 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also
On 13/12/12 10:30, Alex Williamson wrote:
On Wed, 2012-12-12 at 23:34 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO
On Wed, 2012-12-12 at 07:34 -0700, Alex Williamson wrote:
But what would I put there?... IOMMU ID is more than enough at the moment
and struct iommu_table does not have anything what would have made sense to
show in the sysfs...
I believe David mentioned that PEs had user visible names.
On Wed, 2012-12-12 at 16:30 -0700, Alex Williamson wrote:
Locked page accounting in this version is very, very broken. How do
powerpc folks feel about seemingly generic kernel iommu interfaces
messing with the current task mm? Besides that, more problems below...
Not good at all :-)
I
On Wed, 2012-12-12 at 16:30 -0700, Alex Williamson wrote:
Locked page accounting in this version is very, very broken. How do
powerpc folks feel about seemingly generic kernel iommu interfaces
messing with the current task mm? Besides that, more problems
below...
After a second look
On Thu, 2012-12-13 at 13:57 +1100, Benjamin Herrenschmidt wrote:
On Wed, 2012-12-12 at 16:30 -0700, Alex Williamson wrote:
Locked page accounting in this version is very, very broken. How do
powerpc folks feel about seemingly generic kernel iommu interfaces
messing with the current task
On 13/12/12 13:29, Benjamin Herrenschmidt wrote:
On Wed, 2012-12-12 at 07:34 -0700, Alex Williamson wrote:
But what would I put there?... IOMMU ID is more than enough at the moment
and struct iommu_table does not have anything what would have made sense to
show in the sysfs...
I believe David
On 08/12/12 04:38, Alex Williamson wrote:
+static int __init tce_iommu_init(void)
+{
+ struct pci_dev *pdev = NULL;
+ struct iommu_table *tbl;
+ struct iommu_group *grp;
+
+ /* Allocate and initialize IOMMU groups */
+ for_each_pci_dev(pdev) {
+ tbl =
On Fri, 2012-12-07 at 18:35 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also implements an API for mapping/unmapping pages for
guest PCI drivers and
On Fri, 2012-11-30 at 17:14 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also
On 01/12/12 03:48, Alex Williamson wrote:
On Fri, 2012-11-30 at 17:14 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also implements an API for mapping/unmapping pages for
guest PCI drivers and
On 29/11/12 15:20, Alex Williamson wrote:
+ /* Put tces to the table */
+ for (i = 0; (i pages) !ret; ++i, tce += IOMMU_PAGE_SIZE) {
+ ret = put_tce(tbl, entry + i, tce, direction);
+ /*
+* As IOMMU page size is always 4K, the system
On Wed, 2012-11-28 at 18:18 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also implements an API for mapping/unmapping pages for
guest PCI drivers and
On Thu, 2012-11-29 at 14:53 +1100, Alexey Kardashevskiy wrote:
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also
This patch initializes IOMMU groups based on the IOMMU
configuration discovered during the PCI scan on POWERNV
(POWER non virtualized) platform. The IOMMU groups are
to be used later by VFIO driver (PCI pass through).
It also implements an API for mapping/unmapping pages for
guest PCI drivers and
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