On Thu, 2012-02-02 at 12:24 +1100, David Gibson wrote:
On Wed, Feb 01, 2012 at 01:08:39PM -0700, Alex Williamson wrote:
On Wed, 2012-02-01 at 15:46 +1100, David Gibson wrote:
This patch series introduces a new infrastructure to the driver core
for representing device isolation groups
like,
what you don't like, and ideas for the gaps. Thanks,
Alex
---
Alex Williamson (2):
intel-iommu: Basic isolation group provider support
Isolation groups
drivers/base/Kconfig| 10 +
drivers/base/Makefile |1
drivers/base/base.h |5
drivers/base
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/intel-iommu.c | 70 +++
1 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c9c6053..2e5a709 100644
On Fri, 2012-03-16 at 14:45 +1100, David Gibson wrote:
On Thu, Mar 15, 2012 at 02:15:01PM -0600, Alex Williamson wrote:
On Wed, 2012-03-14 at 20:58 +1100, David Gibson wrote:
On Tue, Mar 13, 2012 at 10:49:47AM -0600, Alex Williamson wrote:
On Wed, 2012-03-14 at 01:33 +1100, David Gibson
On Sat, 2012-03-17 at 15:57 +1100, David Gibson wrote:
On Fri, Mar 16, 2012 at 01:31:18PM -0600, Alex Williamson wrote:
On Fri, 2012-03-16 at 14:45 +1100, David Gibson wrote:
On Thu, Mar 15, 2012 at 02:15:01PM -0600, Alex Williamson wrote:
On Wed, 2012-03-14 at 20:58 +1100, David Gibson
On Tue, 2012-03-27 at 16:14 +1100, David Gibson wrote:
On Wed, Mar 21, 2012 at 03:12:58PM -0600, Alex Williamson wrote:
On Sat, 2012-03-17 at 15:57 +1100, David Gibson wrote:
On Fri, Mar 16, 2012 at 01:31:18PM -0600, Alex Williamson wrote:
On Fri, 2012-03-16 at 14:45 +1100, David Gibson
other requirements for a group layer? Thanks,
Alex
On Mon, 2012-04-02 at 15:14 -0600, Alex Williamson wrote:
This series attempts to make IOMMU device grouping a slightly more
integral part of the device model. iommu_device_groups were originally
introduced to support the VFIO user space driver
For returning errors out to non-PCI code. Re-name xen's version.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/xen/xen-pciback/conf_space.c |6 +++---
include/linux/pci.h | 26 ++
2 files changed, 29 insertions(+), 3
On Thu, 2012-05-17 at 15:19 +0800, Anonymous wrote:
Alex,
On Sat, May 12, 2012 at 6:55 AM, Alex Williamson
alex.william...@redhat.com wrote:
Integrating IOMMU groups more closely into the driver core allows
us to more easily work around DMA quirks. The Ricoh multifunction
controller
On Fri, 2012-05-18 at 19:00 -0400, Don Dutile wrote:
On 05/18/2012 06:02 PM, Alex Williamson wrote:
On Wed, 2012-05-16 at 09:29 -0400, Don Dutile wrote:
On 05/15/2012 05:09 PM, Alex Williamson wrote:
On Tue, 2012-05-15 at 13:56 -0600, Bjorn Helgaas wrote:
On Mon, May 14, 2012 at 4:49 PM
On Thu, 2012-05-24 at 17:01 -0400, Don Dutile wrote:
On 05/22/2012 01:04 AM, Alex Williamson wrote:
Add back group support for AMD Intel. amd_iommu already tracks
devices and has init and uninit routines to manage groups.
intel-iommu does this on the fly, so we make use of the notifier
On Thu, 2012-05-24 at 17:30 -0400, Don Dutile wrote:
On 05/22/2012 01:05 AM, Alex Williamson wrote:
In a PCI environment, transactions aren't always required to reach
the root bus before being re-routed. Intermediate switches between
an endpoint and the root bus can redirect DMA back
On Thu, 2012-05-24 at 17:38 -0400, Don Dutile wrote:
On 05/22/2012 01:05 AM, Alex Williamson wrote:
x86 is probably the wrong name for this VFIO IOMMU driver, but x86
is the primary target for it. This driver support a very simple
usage model using the existing IOMMU API. The IOMMU
-next-20120529)
Please consider these for 3.5, but I'll settle for any kind of next
branch. Thanks,
Alex
---
Alex Williamson (5):
pci: Misc pci_reg additions
pci: Create common pcibios_err_to_errno
pci: export pci_user functions for use by other drivers
pci: Add ACS
.
This will be used by IOMMU drivers for determining the boundaries
of IOMMU groups as multiple devices using the same source ID must
be contained within the same group. This can also be used by
existing streaming DMA paths for the same purpose.
Signed-off-by: Alex Williamson alex.william...@redhat.com
path from
a given downstream device up to the specified upstream device. We
also include the ability to add device specific tests as it's
likely we'll see devices that do no implement ACS, but want to
indicate support for various capabilities in this space.
Signed-off-by: Alex Williamson
For returning errors out to non-PCI code. Re-name xen's version.
Signed-off-by: Alex Williamson alex.william...@redhat.com
Acked-by: Konrad Rzeszutek Wilk konrad.w...@oracle.com
---
drivers/xen/xen-pciback/conf_space.c |6 +++---
include/linux/pci.h | 26
Fill in many missing definitions and add sizeof fields for many
sections allowing for more extensive config parsing.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
include/linux/pci_regs.h | 113 +-
1 file changed, 101 insertions
Add IOMMU group support to Intel VT-d code. This driver sets up
devices ondemand, so make use of the add_device/remove_device
callbacks in IOMMU API to manage setting up the groups.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/intel-iommu.c | 46
Work around broken devices and adhere to ACS support when determining
IOMMU grouping.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/amd_iommu.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu
Work around broken devices and adhere to ACS support when determining
IOMMU grouping.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/intel-iommu.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu
for fixing devices we trust individually. This largely
reverts bcb71abe.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/kernel-parameters.txt |1 -
arch/ia64/include/asm/iommu.h |2 --
arch/ia64/kernel/pci-dma.c |1 -
arch/x86/include/asm/iommu.h
can be found here:
git://github.com/awilliam/qemu-vfio.git (iommu-group-vfio)
Thanks,
Alex
---
Alex Williamson (4):
vfio: Add PCI device driver
vfio: Type1 IOMMU implementation
vfio: Add documentation
vfio: VFIO core
Documentation/ioctl/ioctl-number.txt |1
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/vfio.txt | 315
1 file changed, 315 insertions(+)
create mode 100644 Documentation/vfio.txt
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
new file mode
users are able to query and initialize the IOMMU model of their
choice.
Please see the follow-on Documentation commit for further description
and usage example.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/ioctl/ioctl-number.txt |1
MAINTAINERS
for the same purpose.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/pci/quirks.c | 40
include/linux/pci.h |5 +
2 files changed, 45 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2a75216
IOMMU groups allow IOMMU drivers to represent DMA visibility
and isolation of devices. Multiple devices may be grouped
together for the purposes of DMA. Placing a pointer on
struct device enable easy access for things like streaming
DMA programming and drivers like VFIO.
Signed-off-by: Alex
for fixing devices we trust individually. This largely
reverts bcb71abe.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/kernel-parameters.txt |1 -
arch/ia64/include/asm/iommu.h |2 --
arch/ia64/kernel/pci-dma.c |1 -
arch/x86/include/asm/iommu.h
path from
a given downstream device up to the specified upstream device. We
also include the ability to add device specific tests as it's
likely we'll see devices that do no implement ACS, but want to
indicate support for various capabilities in this space.
Signed-off-by: Alex Williamson
For returning errors out to non-PCI code. Re-name xen's version.
Signed-off-by: Alex Williamson alex.william...@redhat.com
Acked-by: Konrad Rzeszutek Wilk konrad.w...@oracle.com
---
drivers/xen/xen-pciback/conf_space.c |6 +++---
include/linux/pci.h | 26
On Wed, 2012-06-06 at 13:05 +0200, Joerg Roedel wrote:
On Wed, May 30, 2012 at 02:18:29PM -0600, Alex Williamson wrote:
v2:
- Trickle down changes from pci_get_dma_source() to better handle
PCI device reference counting in IOMMU driver patches
Okay, I looked again over the code
, maybe we can just add CC: to the commit log? Thanks,
Alex
On Mon, 2012-06-11 at 09:37 -0600, Alex Williamson wrote:
On Wed, 2012-06-06 at 13:05 +0200, Joerg Roedel wrote:
On Wed, May 30, 2012 at 02:18:29PM -0600, Alex Williamson wrote:
v2:
- Trickle down changes from pci_get_dma_source
users are able to query and initialize the IOMMU model of their
choice.
Please see the follow-on Documentation commit for further description
and usage example.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/ioctl/ioctl-number.txt |1
MAINTAINERS
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
Documentation/vfio.txt | 314
1 file changed, 314 insertions(+)
create mode 100644 Documentation/vfio.txt
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
new file mode
for the user and is optimized
for relatively static mappings. Mapped areas are pinned into system
memory.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/vfio/Kconfig|6
drivers/vfio/Makefile |2
drivers/vfio/vfio.c |7
drivers
On Wed, 2012-07-25 at 08:53 -0600, Alex Williamson wrote:
Hi Linus,
This series includes the VFIO userspace driver interface for the
3.6 kernel merge window. This driver is intended to provide a
secure interface for device access using IOMMU protection for
applications like assignment
On Fri, 2012-07-27 at 15:32 +1000, Paul Mackerras wrote:
On Wed, Jul 25, 2012 at 08:53:06AM -0600, Alex Williamson wrote:
Hi Linus,
This series includes the VFIO userspace driver interface for the
3.6 kernel merge window. This driver is intended to provide a
secure interface
On Mon, 2012-07-30 at 22:11 -0700, Linus Torvalds wrote:
On Mon, Jul 30, 2012 at 4:17 PM, Alex Williamson
alex.william...@redhat.com wrote:
I'm pretty anxious to find out as well. Linus, ping, any thoughts on
including this in 3.6? Thanks,
I just pulled it, but then I unpulled again
On Tue, 2012-07-31 at 08:53 -0600, Alex Williamson wrote:
On Mon, 2012-07-30 at 22:11 -0700, Linus Torvalds wrote:
On Mon, Jul 30, 2012 at 4:17 PM, Alex Williamson
alex.william...@redhat.com wrote:
I'm pretty anxious to find out as well. Linus, ping, any thoughts on
including
the root bus.
This works on my system, but still needs to be tested by David. I'd
like to get this in for 3.6-rc2.
Joerg, I notice that ACS isn't getting enabled on my AMD system on
3.6-rc1. I'll investigate more, but mention it in case you get to
it first. Thanks,
Alex
---
Alex Williamson
SR-IOV can create buses without a bridge. There may be other cases
where this happens as well. In these cases skip to the parent bus
and continue testing devices there.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/amd_iommu.c | 25
On Mon, 2012-08-06 at 14:20 +0200, Joerg Roedel wrote:
On Mon, Aug 06, 2012 at 12:50:10PM +0200, Joerg Roedel wrote:
On Sat, Aug 04, 2012 at 12:08:46PM -0600, Alex Williamson wrote:
Hmm, tried it here, At least pci_request_acs() still gets called. How do
you detect if ACS is really enabled
commit 6955e1f06cb20ddd25665984c330b945443cce36
Author: Alex Williamson alex.william...@redhat.com
Date: Mon Sep 24 21:13:52 2012 -0600
iommu: inline iommu group stub functions
Signed-off-by: Alex Williamson alex.william...@redhat.com
diff --git a/include/linux/iommu.h b/include/linux
On Tue, 2012-09-25 at 20:54 +0200, Florian Dazinger wrote:
Am Tue, 25 Sep 2012 12:32:50 -0600
schrieb Alex Williamson alex.william...@redhat.com:
On Mon, 2012-09-24 at 21:03 +0200, Florian Dazinger wrote:
Hi,
I think I've found a regression, which causes an early boot crash, I
On Wed, 2012-09-26 at 01:01 +0200, Florian Dazinger wrote:
Am Tue, 25 Sep 2012 13:43:46 -0600
schrieb Alex Williamson alex.william...@redhat.com:
On Tue, 2012-09-25 at 20:54 +0200, Florian Dazinger wrote:
Am Tue, 25 Sep 2012 12:32:50 -0600
schrieb Alex Williamson alex.william
On Wed, 2012-09-26 at 15:20 +0200, Roedel, Joerg wrote:
On Tue, Sep 25, 2012 at 01:43:46PM -0600, Alex Williamson wrote:
Joerg, any thoughts on a quirk for this? Unfortunately we can't just
skip IOMMU groups when an alias is broken because it puts the other
IOMMU groups at risk that might
On Wed, 2012-09-26 at 17:04 +0200, Roedel, Joerg wrote:
On Wed, Sep 26, 2012 at 08:52:01AM -0600, Alex Williamson wrote:
Assuming this works, it may be ok as a 3.7 fix, but if there was
actually more than one device behind the alias we'd expose them as
separate iommu groups. I don't think
On Wed, 2012-09-26 at 17:10 +0200, Roedel, Joerg wrote:
On Wed, Sep 26, 2012 at 08:35:59AM -0600, Alex Williamson wrote:
Hmm, that throws a kink in iommu groups. So perhaps we need to make an
alias interface to iommu groups. Seems like this could just be an extra
parameter
[adding David Woodhouse]
On Tue, 2012-09-18 at 16:49 +, Tom Mingarelli wrote:
When a 32bit PCI device is removed from the SI Domain, the RMRR information
for this device becomes invalid and needs to be reprocessed to avoid DMA
Read errors. These errors are evidenced by the Present bit
On Fri, 2012-09-28 at 14:52 +0200, Joerg Roedel wrote:
On Fri, Sep 28, 2012 at 06:40:08AM -0600, Alex Williamson wrote:
On Fri, 2012-09-28 at 11:43 +0200, Joerg Roedel wrote:
I don't think so. The concept of RMRR is just not defined well enough
(like the concept of unity mappings
On Fri, 2012-09-28 at 19:01 +0200, Joerg Roedel wrote:
On Fri, Sep 28, 2012 at 12:36:05PM -0400, Linda Knippers wrote:
I can only speak to the HP servers. We have been shipping devices
'for a while' that provide sensor-type data to the platform. The
device does DMA writes to a range of
.
This seems to do the right thing on my system, but that's not saying
a lot since it doesn't do anything interesting with aliases. I'd
appreciate if Joerg and Florian could test this on their systems.
Thanks,
Alex
---
Alex Williamson (5):
amd_iommu: Properly account for virtual aliases in IOMMU
On Tue, 2012-10-09 at 20:27 +0200, Florian Dazinger wrote:
Am Mon, 08 Oct 2012 22:49:28 -0600
schrieb Alex Williamson alex.william...@redhat.com:
This series is meant to refactor IOMMU group support in amd_iommu
to properly support virtual aliases. If multiple devices alias to
the same
On Tue, 2012-10-09 at 20:57 +0200, Florian Dazinger wrote:
Am Tue, 09 Oct 2012 12:35:39 -0600
schrieb Alex Williamson alex.william...@redhat.com:
On Tue, 2012-10-09 at 20:27 +0200, Florian Dazinger wrote:
Am Mon, 08 Oct 2012 22:49:28 -0600
schrieb Alex Williamson alex.william
On Tue, 2012-10-16 at 16:50 +, Tom Mingarelli wrote:
This patch is to prevent devices that have RMRRs associated with them
from getting placed into the SI Domain during init. We don't put USB devices
into this category, however. This fixes the issue where the RMRR info
for devices being
Joerg,
I think this series is good-to-go, modulo any testing you may be able to
do on it. I'm going to be offline for a couple weeks so feel free to
incorporate this RFC directly or I can re-spin something when I'm back.
Thanks,
Alex
On Mon, 2012-10-08 at 22:49 -0600, Alex Williamson wrote
We can't assume this device exists, fall back to the bridge itself.
Signed-off-by: Alex Williamson alex.william...@redhat.com
Tested-by: Matthew Thode prometheanf...@gentoo.org
Cc: sta...@vger.kernel.org
---
drivers/iommu/intel-iommu.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions
On Tue, 2012-11-13 at 14:05 -0500, Don Dutile wrote:
On 11/13/2012 10:38 AM, Alex Williamson wrote:
On Mon, 2012-11-12 at 15:05 -0600, Matthew Thode wrote:
On 11/12/2012 01:57 PM, Don Dutile wrote:
On 11/12/2012 04:26 AM, Doug Goldstein wrote:
On Sun, Nov 11, 2012 at 5:19 PM, Matthew
+++
1 files changed, 31 insertions(+), 0 deletions(-)
Looks ok to me.
Reviewed-by: Alex Williamson alex.william...@redhat.com
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index d4a4cd4..8c064df 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers
Probably a good idea to CC the iommu list and maintainer...
On Thu, 2012-12-13 at 17:28 +1100, Alexey Kardashevskiy wrote:
The iommu_init() call initializes IOMMU internal structures and data
required for the API to function such as iommu_group_alloc().
It is registered as a subsys_initcall.
On Thu, 2013-01-17 at 12:20 +0900, Damian Hobson-Garcia wrote:
I mistakenly sent this with the tag [PATCH] when it should have been
[RFC]. Updated with this reply.
Hi Alex,
On 2013/01/17 6:47, Alex Williamson wrote:
On Tue, 2013-01-15 at 19:10 +0900, Damian Hobson-Garcia wrote:
We've
On Mon, 2013-02-04 at 10:36 -0800, Stephen Hemminger wrote:
I think drivers/pci/search.c is identical between 3.7 and 3.8-rc1. Is
this the first time you've turned on the IOMMU on that box?
It exists in 3.7 and earlier kernels, just haven't turned on same config.
It's the same warning
On Mon, 2013-02-04 at 13:28 -0700, Alex Williamson wrote:
On Mon, 2013-02-04 at 10:36 -0800, Stephen Hemminger wrote:
I think drivers/pci/search.c is identical between 3.7 and 3.8-rc1. Is
this the first time you've turned on the IOMMU on that box?
It exists in 3.7 and earlier kernels
On Wed, 2013-02-06 at 07:49 -0800, Stephen Hemminger wrote:
On Mon, 04 Feb 2013 15:41:24 -0700
Alex Williamson alex.william...@redhat.com wrote:
On Mon, 2013-02-04 at 13:28 -0700, Alex Williamson wrote:
On Mon, 2013-02-04 at 10:36 -0800, Stephen Hemminger wrote:
I think drivers/pci
On Wed, 2013-02-06 at 08:58 -0700, Alex Williamson wrote:
On Wed, 2013-02-06 at 07:49 -0800, Stephen Hemminger wrote:
On Mon, 04 Feb 2013 15:41:24 -0700
Alex Williamson alex.william...@redhat.com wrote:
On Mon, 2013-02-04 at 13:28 -0700, Alex Williamson wrote:
On Mon, 2013-02-04
being
the only function that the mvumi driver cares about. So my guess is
that 02:00.1 is issuing DMA with the incorrect tag of 02:00.0.
Perhaps Alex Williamson can tell us about iommu device groups, whether
it would be possible to group the functions together automatically and
whether
On Fri, 2013-03-01 at 16:26 +0800, Andrew Cooks wrote:
This is my third submitted patch to make Marvell 88SE91xx SATA controllers
work when IOMMU is enabled.[1][2]
What's changed:
* Adopt David Woodhouse's terminology by referring to the quirky functions as
'ghost' functions.
* Unmap
On Thu, 2013-03-21 at 18:48 +1100, Alexey Kardashevskiy wrote:
As IOMMU groups are exposed to the user space by their numbers,
the user space can use them in various kernel APIs so the kernel
might need an API to find a group by its ID.
As an example, QEMU VFIO on PPC64 platform needs it to
On Fri, 2013-03-22 at 17:49 +1100, Alexey Kardashevskiy wrote:
As IOMMU groups are exposed to the user space by their numbers,
the user space can use them in various kernel APIs so the kernel
might need an API to find a group by its ID.
As an example, QEMU VFIO on PPC64 platform needs it to
?
v2: fixed reference counting.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Acked-by: Alex Williamson alex.william...@redhat.com
drivers/iommu/iommu.c | 29 +
include/linux/iommu.h |1 +
2 files changed, 30 insertions(+)
diff --git a/drivers
Hi Stuart,
On Tue, 2013-04-02 at 17:32 +, Yoder Stuart-B08248 wrote:
Alex,
We are in the process of implementing vfio-pci support for the Freescale
IOMMU (PAMU). It is an aperture/window-based IOMMU and is quite different
than x86, and will involve creating a 'type 2' vfio
On Tue, 2013-04-02 at 16:08 -0500, Stuart Yoder wrote:
On Tue, Apr 2, 2013 at 3:57 PM, Scott Wood scottw...@freescale.com wrote:
C. Explicit mapping using normal DMA map. The last idea is that
we would introduce a new ioctl to give user-space an fd to
the MSI bank,
On Tue, 2013-04-02 at 17:13 -0500, Scott Wood wrote:
On 04/02/2013 04:16:11 PM, Alex Williamson wrote:
On Tue, 2013-04-02 at 15:54 -0500, Stuart Yoder wrote:
The number of windows is always power of 2 (and max is 256). And
to reduce
PAMU cache pressure you want to use the fewest
On Tue, 2013-04-02 at 17:44 -0500, Scott Wood wrote:
On 04/02/2013 04:32:04 PM, Alex Williamson wrote:
On Tue, 2013-04-02 at 15:57 -0500, Scott Wood wrote:
On 04/02/2013 03:32:17 PM, Alex Williamson wrote:
On x86 the interrupt remapper handles this transparently when MSI
is enabled
On Tue, 2013-04-02 at 17:50 -0500, Scott Wood wrote:
On 04/02/2013 04:38:45 PM, Alex Williamson wrote:
On Tue, 2013-04-02 at 16:08 -0500, Stuart Yoder wrote:
On Tue, Apr 2, 2013 at 3:57 PM, Scott Wood
scottw...@freescale.com wrote:
C. Explicit mapping using normal DMA map
On Tue, 2013-04-02 at 18:18 +0200, Joerg Roedel wrote:
Cc'ing Alex Williamson
Alex, can you please review the iommu-group part of this patch?
Sure, it looks pretty reasonable. AIUI, all PCI devices are below some
kind of host bridge that is either new and supports partitioning or old
On Wed, 2013-04-03 at 14:09 -0500, Stuart Yoder wrote:
Would is be possible for userspace to simply leave room for MSI bank
mapping (how much room could be determined by something like
VFIO_IOMMU_GET_MSI_BANK_COUNT) then document the API that userspace can
DMA_MAP starting at the 0x0
On Thu, 2013-04-04 at 17:32 +, Yoder Stuart-B08248 wrote:
Based on the email thread over the last couple of days, I have
below an more concrete proposal (v2) for new ioctls supporting vfio-pci
on SoCs with the Freescale PAMU.
Example usage is as described by Scott:
count =
On Wed, 2013-04-10 at 16:36 -0600, Bjorn Helgaas wrote:
On Wed, Feb 06, 2013 at 08:58:41AM -0700, Alex Williamson wrote:
On Wed, 2013-02-06 at 07:49 -0800, Stephen Hemminger wrote:
On Mon, 04 Feb 2013 15:41:24 -0700
Alex Williamson alex.william...@redhat.com wrote:
On Mon, 2013-02
On Thu, 2013-04-11 at 11:23 -0600, Bjorn Helgaas wrote:
On Wed, Apr 10, 2013 at 6:01 PM, Alex Williamson
alex.william...@redhat.com wrote:
On Wed, 2013-04-10 at 16:36 -0600, Bjorn Helgaas wrote:
On Wed, Feb 06, 2013 at 08:58:41AM -0700, Alex Williamson wrote:
On Wed, 2013-02-06 at 07:49
On Tue, 2013-04-23 at 19:16 +, Yoder Stuart-B08248 wrote:
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Tuesday, April 23, 2013 11:56 AM
To: Yoder Stuart-B08248
Cc: Joerg Roedel; iommu@lists.linux-foundation.org
Subject: Re: RFC: vfio
On Tue, 2013-04-30 at 11:06 -0400, Don Dutile wrote:
On 04/30/2013 10:49 AM, Suravee Suthikulanit wrote:
On 4/29/2013 3:10 PM, Don Dutile wrote:
On 04/29/2013 03:45 PM, Suravee Suthikulanit wrote:
Joerg,
We are in the process of implementing AMD IOMMU error handling, and I
would like
: iommu-boun...@lists.linux-foundation.org [mailto:iommu-
boun...@lists.linux-foundation.org] On Behalf Of Don Dutile
Sent: Thursday, April 25, 2013 1:11 AM
To: Alex Williamson
Cc: Yoder Stuart-B08248; iommu@lists.linux-foundation.org
Subject: Re: RFC: vfio / iommu driver for hardware
On Tue, 2013-04-30 at 16:48 -0400, Don Dutile wrote:
On 04/30/2013 03:11 PM, Konrad Rzeszutek Wilk wrote:
Does vfio work with swiotlb and if not, can/should swiotlb be
extended? Or does the time and space overhead make it a moot point?
It does not work with SWIOTLB as it uses the DMA API,
On Wed, 2013-04-24 at 13:58 +0900, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices is specified, a hot reset is triggered on each
PCIe root port and downstream port to reset its downstream endpoint.
Problem:
This patch solves the
On Tue, 2013-05-07 at 16:10 -0400, Don Dutile wrote:
On 05/07/2013 12:39 PM, Alex Williamson wrote:
On Wed, 2013-04-24 at 13:58 +0900, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices is specified, a hot reset is triggered on each
-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/intel-iommu.c | 77 ++-
drivers/iommu/intel_irq_remapping.c | 13 --
2 files changed, 57 insertions(+), 33 deletions(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
This function no longer has any users.
Signed-off-by: Alex williamson alex.william...@redhat.com
---
drivers/pci/search.c | 35 ---
include/linux/pci.h | 11 ---
2 files changed, 46 deletions(-)
diff --git a/drivers/pci/search.c b/drivers/pci
.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/iommu.c | 63 +++--
1 file changed, 35 insertions(+), 28 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index d8f98b1..4b0b56b 100644
--- a/drivers
, but is compatible with known users and works
with existing QEMU userspace supporting vfio. Thanks,
Alex
---
Alex Williamson (2):
vfio: Convert type1 iommu to use rbtree
vfio: hugepage support for vfio_iommu_type1
drivers/vfio/vfio_iommu_type1.c | 607
more efficient and allows us to use common code instead
of inventing our own.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/vfio/vfio_iommu_type1.c | 190 ---
1 file changed, 96 insertions(+), 94 deletions(-)
diff --git a/drivers/vfio
to reflect this.
Previously this was unmodified on mapping, always returning the the
requested unmap size. This is now updated to return the actual unmap
size on success, allowing userspace to appropriately track mappings.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/vfio
On Sat, 2013-05-25 at 07:21 -0400, Konrad Rzeszutek Wilk wrote:
On Fri, May 24, 2013 at 11:24:26AM -0600, Alex Williamson wrote:
This series let's the vfio type1 iommu backend take advantage of iommu
large page support. See patch 2/2 for the details. This has been
tested on both amd_iommu
through sysfs. If enabled
dynamically, only new mappings are restricted.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
As suggested by Konrad. This is cleaner to add as a follow-on
drivers/vfio/vfio_iommu_type1.c | 11 +++
1 file changed, 11 insertions(+)
diff --git
.
Fixes https://bugzilla.kernel.org/show_bug.cgi?id=44881
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/Kconfig |2 +
drivers/iommu/intel-iommu.c | 77 ++-
drivers/iommu/intel_irq_remapping.c | 15 +--
3
of confusion that a PCIe capability would be
expected, so implement it in IOMMU code.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/Kconfig |3 ++
drivers/iommu/Makefile |1 +
drivers/iommu/pci.c| 69
since PCI-core doesn't want it. v1 has several reports
from users that this solves the problem they have in the above bz.
Thanks,
Alex
---
Alex Williamson (2):
iommu: Quirked PCIe bridge test and search function
intel-iommu: Convert to iommu_pci_find_upstream + iommu_pci_is_pcie_bridge
On Tue, 2013-05-28 at 12:38 -0700, Stephen Hemminger wrote:
On Tue, 28 May 2013 12:40:20 -0600
Alex Williamson alex.william...@redhat.com wrote:
Some PCIe-to-PCI bridges are not fully compliant with the PCIe spec
and do not include a PCIe capability. pci_is_pcie() is not useful
This no longer has any users.
Signed-off-by: Alex Williamson alex.william...@redhat.com
Acked-by: Bjorn Helgaas bhelg...@google.com
---
I figured I'd follow up with this after the series is accepted, but I
won't turn down an pre-emptive ack from Bjorn.
drivers/pci/search.c | 35
, all the
non-ACS functions will be grouped together and ACS functions will
get separate groups.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
drivers/iommu/amd_iommu.c | 25 +++--
drivers/iommu/intel-iommu.c | 25 +++--
2 files changed
1 - 100 of 988 matches
Mail list logo
