and this is like 30% of the patches.
Thank you for the patches. For the series:
Reviewed-by: Jean-Philippe Brucker
rray member.
>
> This code was found with the help of Coccinelle, and audited and
> fixed manually.
>
> Signed-off-by: Gustavo A. R. Silva
Reviewed-by: Jean-Philippe Brucker
> ---
> drivers/iommu/virtio-iommu.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(
On Tue, Sep 19, 2023 at 11:46:49AM -0300, Jason Gunthorpe wrote:
> On Tue, Sep 19, 2023 at 09:15:19AM +0100, Jean-Philippe Brucker wrote:
> > On Mon, Sep 18, 2023 at 05:37:47PM +0100, Robin Murphy wrote:
> > > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-
On Tue, Sep 19, 2023 at 09:28:08AM +0100, Robin Murphy wrote:
> On 2023-09-19 09:15, Jean-Philippe Brucker wrote:
> > On Mon, Sep 18, 2023 at 05:37:47PM +0100, Robin Murphy wrote:
> > > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
>
On Mon, Sep 18, 2023 at 05:37:47PM +0100, Robin Murphy wrote:
> > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
> > index 17dcd826f5c2..3649586f0e5c 100644
> > --- a/drivers/iommu/virtio-iommu.c
> > +++ b/drivers/iommu/virtio-iommu.c
> > @@ -189,6 +189,12 @@ static int vi
yrica/
> Signed-off-by: Niklas Schnelle
Reviewed-by: Jean-Philippe Brucker
> ---
> drivers/iommu/virtio-iommu.c | 10 ++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
> index 3649586f0e5c..4dd330fbcbdd
t; it is also a requirement for IOMMU_CAP_DEFERRED_FLUSH.
>
> Link:
> https://lore.kernel.org/lkml/20230726111433.1105665-1-schne...@linux.ibm.com/
> Signed-off-by: Niklas Schnelle
Reviewed-by: Jean-Philippe Brucker
This must be merged after "iommu/dma: s390 DMA API convers
On Wed, Sep 06, 2023 at 09:55:49AM +0200, Niklas Schnelle wrote:
> On Mon, 2023-09-04 at 17:33 +0100, Robin Murphy wrote:
> > On 2023-09-04 16:34, Jean-Philippe Brucker wrote:
> > > On Fri, Aug 25, 2023 at 05:21:26PM +0200, Niklas Schnelle wrote:
> > > > Add ops
On Fri, Aug 25, 2023 at 05:21:26PM +0200, Niklas Schnelle wrote:
> Add ops->flush_iotlb_all operation to enable virtio-iommu for the
> dma-iommu deferred flush scheme. This results inn a significant increase
in
> in performance in exchange for a window in which devices can still
> access previous
Hi Niklas,
Thanks for following up with these patches
On Fri, Aug 25, 2023 at 05:21:25PM +0200, Niklas Schnelle wrote:
> Pull out the sync operation from viommu_map_pages() by implementing
> ops->iotlb_sync_map. This allows the common IOMMU code to map multiple
> elements of an sg with a single s
Hi Niklas,
On Wed, Jul 26, 2023 at 01:14:33PM +0200, Niklas Schnelle wrote:
> Just like on paged s390 guests with their virtual IOMMU, syncing
> mappings via virtio-iommu is quite expensive. It can thus benefit from
> queueing unmapped IOVAs and flushing them in batches but less so from
> parallel
On Mon, Jun 19, 2023 at 11:35:50AM +0800, Baolu Lu wrote:
> > Another outstanding issue was what to do for PASID stop. When the guest
> > device driver stops using a PASID it issues a PASID stop request to the
> > device (a device-specific mechanism). If the device is not using PRI stop
> > markers
Hi Baolu,
On Tue, May 30, 2023 at 01:37:07PM +0800, Lu Baolu wrote:
> - The timeout value for the pending page fault messages. Ideally we
> should determine the timeout value from the device configuration, but
> I failed to find any statement in the PCI specification (version 6.x).
> A defau
On Thu, May 18, 2023 at 10:59:12AM -0300, Jason Gunthorpe wrote:
> On Thu, May 18, 2023 at 02:56:38PM +0100, Jean-Philippe Brucker wrote:
> > > Can you wrapper this into a BLOCKED domain like we are moving drivers
> > > toward, and then attach the blocked domain instea
On Wed, May 17, 2023 at 01:20:51PM -0300, Jason Gunthorpe wrote:
> On Wed, May 10, 2023 at 09:11:57AM +0100, Jean-Philippe Brucker wrote:
>
> > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
> > > index 5b8fe9bfa9a5..3d3d4462359e 100644
> >
: 7e62edd7a33a ("iommu/virtio: Add map/unmap_pages() callbacks
implementation")
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 33 +
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/io
-3aa0-973a-3a86-3fa5c4d41...@daynix.com/
Signed-off-by: Jean-Philippe Brucker
Tested-by: Akihiko Odaki
---
v1:
https://lore.kernel.org/linux-iommu/20230414150744.562456-1-jean-phili...@linaro.org/
v2: fixed nr_endpoints count reported by Eric
---
drivers/iommu/virtio-iommu.c | 24 +
One fix reported by Akihiko, and another found while going over the
driver.
Jean-Philippe Brucker (2):
iommu/virtio: Detach domain on endpoint release
iommu/virtio: Return size mapped for a detached domain
drivers/iommu/virtio-iommu.c | 57 ++--
1 file
On Wed, May 10, 2023 at 05:37:22PM +0200, Eric Auger wrote:
> Hi Jean,
>
> On 4/14/23 17:07, Jean-Philippe Brucker wrote:
> > When an endpoint is released, for example a PCIe VF is disabled or a
> > function hot-unplugged, it should be detached from its domain. Send
Hi Joerg,
On Fri, Apr 14, 2023 at 04:07:45PM +0100, Jean-Philippe Brucker wrote:
> When an endpoint is released, for example a PCIe VF is disabled or a
> function hot-unplugged, it should be detached from its domain. Send a
> DETACH request.
>
> Fixes: edcd69ab9a32 ("iom
On Thu, Apr 13, 2023 at 08:01:54PM +0900, Akihiko Odaki wrote:
> Yes, that's right. The guest can dynamically create and delete VFs. The
> device is emulated by QEMU: igb, an Intel NIC recently added to QEMU and
> projected to be released as part of QEMU 8.0.
Ah great, that's really useful, I'll a
-973a-3a86-3fa5c4d41...@daynix.com/
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 23 +++
1 file changed, 23 insertions(+)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 5b8fe9bfa9a5..3d3d4462359e 100644
--- a/drivers/io
Hello,
On Thu, Apr 13, 2023 at 01:49:43PM +0900, Akihiko Odaki wrote:
> Hi,
>
> Recently I encountered a problem with the combination of Linux's
> virtio-iommu driver and QEMU when a SR-IOV virtual function gets disabled.
> I'd like to ask you what kind of solution is appropriate here and impleme
Convert the binding that describes the virtio-pci based IOMMU to DT
schema. Change the compatible string to "pci,", which is
defined by the PCI Bus Binding, but keep "virtio,pci-iommu" as an option
for backward compatibility.
Signed-off-by: Jean-Philippe Brucker
---
v3: Rena
Convert the binding that describes virtio-pci base IOMMU to DT schema.
Change the compatible string to "pci," which is defined
by the PCI Bus Binding
Signed-off-by: Jean-Philippe Brucker
---
v2: Fix example, make compatible a required property
v1:
https://lore.kern
On Sun, Sep 18, 2022 at 10:23:06AM +0100, Krzysztof Kozlowski wrote:
> > +required:
>
> Also: compatible
>
> > + - reg
> > + - '#iommu-cells'
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > +pcie0 {
>
> Node name: pcie
>
> > +#address-cells = <3>;
> > +
Hi Liu,
On Thu, Sep 22, 2022 at 07:24:46PM +0800, Liu Song wrote:
> From: Liu Song
>
> In "__viommu_sync_req", 0 is always returned as the only return value, no
> return value is needed for this case, and the processes and functions
> involved are adjusted accordingly.
>
> Signed-off-by: Liu So
iommu/mtk_iommu.c | 4 +-
> drivers/iommu/omap-iommu.c | 6 +--
> drivers/iommu/sprd-iommu.c | 4 +-
> drivers/iommu/tegra-gart.c | 2 +-
> drivers/iommu/virtio-iommu.c | 7 ++-
For virt
Convert the binding that describes the virtio-pci based IOMMU to DT
schema. Change the compatible string to "pci,", which is
defined by the PCI Bus Binding, but keep "virtio,pci-iommu" as an option
for backward compatibility.
Signed-off-by: Jean-Philippe Brucker
---
...
On Wed, Sep 14, 2022 at 06:11:06AM -0300, Jason Gunthorpe wrote:
> On Tue, Sep 13, 2022 at 01:27:03PM +0100, Jean-Philippe Brucker wrote:
> > I think in the future it will be too easy to forget about the constrained
> > return value of attach() while modifying some other par
ince we can't guarantee that APIs like virtio or ida won't ever return
EINVAL, we should set all return values:
--- 8< ---
>From 7b16796cb78d11971236f98fd2d3cd73ca769827 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Brucker
Date: Tue, 13 Sep 2022 12:53:02 +0100
Subject: [PATCH] iommu/vir
will happen
> because the function pointer types mismatch. Fix that by
> updating the viommu_capable() signature after the merge.
>
> Cc: Jean-Philippe Brucker
> Cc: Robin Murphy
> Signed-off-by: Joerg Roedel
Reviewed-by: Jean-Philippe Brucker
> ---
> drivers/iom
uld require a new feature bit, PROBE property and ATTACH/MAP
flags.
Cc: sta...@vger.kernel.org
Fixes: e8ae0e140c05 ("vfio: Require that devices support DMA cache coherence")
Signed-off-by: Jean-Philippe Brucker
---
Since v2 [1], I tried to refine the commit message.
This fix is
On Thu, Aug 18, 2022 at 09:10:25PM +0100, Robin Murphy wrote:
> On 2022-08-18 17:38, Jean-Philippe Brucker wrote:
> > Commit e8ae0e140c05 ("vfio: Require that devices support DMA cache
> > coherence") requires IOMMU drivers to advertise
> > IOMMU_CAP_CACHE_COHEREN
ble no-snoop in
endpoints on x86, then virtio-iommu would need additional feature,
PROBE property, ATTACH and/or MAP flags to support enforcing snoop.
Fixes: e8ae0e140c05 ("vfio: Require that devices support DMA cache coherence")
Signed-off-by: Jean-Philippe Brucker
---
Sinc
Andy Shevchenko
Reviewed-by: Jean-Philippe Brucker
> ---
> drivers/iommu/virtio-iommu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
> index 08eeafc9529f..9fe723f55213 100644
> --- a/
On Thu, Jul 14, 2022 at 02:39:32PM +0100, Robin Murphy wrote:
> > In the meantime we do need to restore VFIO support under virtio-iommu,
> > since userspace still expects that to work, and the existing use-cases are
> > coherent devices.
>
> Yeah, I'm not necessarily against adding this as a horri
On Thu, Jul 14, 2022 at 01:01:37PM +0100, Robin Murphy wrote:
> On 2022-07-14 12:11, Jean-Philippe Brucker wrote:
> > Fix virtio-iommu interaction with VFIO, as VFIO now requires
> > IOMMU_CAP_CACHE_COHERENCY. virtio-iommu does not support non-cacheable
> > mappings, and
f-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 25be4b822aa0..bf340d779c10 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -1006,
Hi,
On Fri, Jan 14, 2022 at 03:35:15PM -0500, Michael S. Tsirkin wrote:
> Jean-Philippe Brucker (5):
> iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
> iommu/virtio: Support bypass domains
> iommu/virtio: Sort reserved regions
> iommu/v
evice itself to only perform DMA to suitable
locations. In some cases it may even be desirable to perform DMA to MMIO
regions.
Reviewed-by: Eric Auger
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 61 +---
1
To ease identity mapping support, keep the list of reserved regions
sorted.
Reviewed-by: Eric Auger
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/virtio
identity mappings in this case.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 80930ce04a16
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
include/uapi/linux/virtio_iommu.h | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux
size will most certainly
be smaller than 2^64.
Reviewed-by: Eric Auger
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 31 +++
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/drivers/iommu/virtio
/?h=virtio-iommu/bypass
Jean-Philippe Brucker (5):
iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
iommu/virtio: Support bypass domains
iommu/virtio: Sort reserved regions
iommu/virtio: Pass end address to viommu_add_mapping()
iommu/virtio: Support identity-mapped domains
On Sat, Nov 27, 2021 at 06:09:56PM +0100, Eric Auger wrote:
> > - vdomain->viommu = 0;
> > + vdomain->viommu = NULL;
> nit: that change could have been done in patch 2
Ah yes, I changed that in v2 but fixed up the wrong patch
> > return -EOP
On Sat, Nov 27, 2021 at 06:09:56PM -0500, Michael S. Tsirkin wrote:
> > > -static int viommu_add_mapping(struct viommu_domain *vdomain, unsigned
> > > long iova,
> > > - phys_addr_t paddr, size_t size, u32 flags)
> > > +static int viommu_add_mapping(struct viommu_domain *vdom
On Sat, Nov 27, 2021 at 05:18:28PM +0100, Eric Auger wrote:
> Hi Jean,
>
> On 11/23/21 4:52 PM, Jean-Philippe Brucker wrote:
> > The VIRTIO_IOMMU_F_BYPASS_CONFIG feature adds a new flag to the ATTACH
> > request, that creates a bypass domain. Use it to enable identity
>
Hi Eric,
On Sat, Nov 27, 2021 at 08:59:25AM +0100, Eric Auger wrote:
> > @@ -36,6 +37,8 @@ struct virtio_iommu_config {
> > struct virtio_iommu_range_32domain_range;
> > /* Probe buffer size */
> > __le32 probe_size;
> > + __u8
evice itself to only perform DMA to suitable
locations. In some cases it may even be desirable to perform DMA to MMIO
regions.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 63 +---
1 file changed, 58 insertions(
To ease identity mapping support, keep the list of reserved regions
sorted.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu
size will most certainly
be smaller than 2^64.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 31 +++
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio
identity mappings in this case.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 80930ce04a16
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
include/uapi/linux/virtio_iommu.h | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux
r.net/git/qemu/log/?h=virtio-iommu/bypass
Jean-Philippe Brucker (5):
iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
iommu/virtio: Support bypass domains
iommu/virtio: Sort reserved regions
iommu/virtio: Pass end address to viommu_add_mapping()
iommu/virtio: Support identity-m
On Fri, Oct 22, 2021 at 06:16:27AM -0400, Michael S. Tsirkin wrote:
> On Wed, Oct 13, 2021 at 01:10:48PM +0100, Jean-Philippe Brucker wrote:
> > Support identity domains, allowing to only enable IOMMU protection for a
> > subset of endpoints (those assigned to userspace, for
On Tue, Oct 19, 2021 at 09:22:13AM +0800, Jason Wang wrote:
> > > So I think clarifying system reset should address your questions.
> > > I believe we should leave bypass sticky across device reset, so a FW->OS
> > > transition, where the OS resets the device, does not open a vulnerability
> > > (i
On Thu, Oct 14, 2021 at 03:00:38AM +, Tian, Kevin wrote:
> > From: Jean-Philippe Brucker
> > Sent: Wednesday, October 13, 2021 8:11 PM
> >
> > Support identity domains, allowing to only enable IOMMU protection for a
> > subset of endpoints (those assigned to
ed.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/iommu/virtio-iommu.c | 2 +-
Reviewed-by: Jean-Philippe Brucker
___
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
identity mappings in this case.
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 80930ce04a16..ee8a7afd667b 100644
--- a
To ease identity mapping support, keep the list of reserved regions
sorted.
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index
brucker.net/git/linux/log/?h=virtio-iommu/bypass
[3] https://jpbrucker.net/git/qemu/log/?h=virtio-iommu/bypass
Jean-Philippe Brucker (5):
iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
iommu/virtio: Support bypass domains
iommu/virtio: Sort reserved regions
iommu/virtio: Pass
evice itself to only perform DMA to suitable
locations. In some cases it may even be desirable to perform DMA to MMIO
regions.
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 61 +---
1 file changed, 57 insertions(+), 4 deletions(-)
diff --
size will most certainly
be smaller than 2^64.
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 31 +++
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.
Signed-off-by: Jean-Philippe Brucker
---
include/uapi/linux/virtio_iommu.h | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/virtio_iommu.h
b/include/uapi
Hi Vivek,
On Mon, Oct 11, 2021 at 01:41:15PM +0530, Vivek Gautam wrote:
> > > + list_for_each_entry(ep, &viommu->endpoints, list) {
> > > + if (ep->eid == endpoint) {
> > > + vdev = ep->vdev;
>
> I have a question here though -
> Is endpoint-ID unique across al
On Thu, Sep 30, 2021 at 02:54:05PM +0530, Vivek Kumar Gautam wrote:
> > > +struct virtio_iommu_req_page_resp {
> > > + struct virtio_iommu_req_headhead;
> > > + __le32 domain;
> >
> > I don't think we need this field, since the fault report doesn't come
On Thu, Sep 30, 2021 at 10:26:35AM +0530, Vivek Kumar Gautam wrote:
> > I'm not sure why we made it 32-bit in Linux UAPI, it's a little wasteful.
> > PCIe PRGI is 9-bits and SMMU STAG is 16-bits. Since the scope of the grpid
> > is the endpoint, 16-bit means 64k in-flight faults per endpoint, which
On Fri, Apr 23, 2021 at 03:21:46PM +0530, Vivek Gautam wrote:
> Once the page faults are handled, the response has to be sent to
> virtio-iommu backend, from where it can be sent to the host to
> prepare the response to a generated io page fault by the device.
> Add a new virt-queue request type to
On Fri, Apr 23, 2021 at 03:21:45PM +0530, Vivek Gautam wrote:
> SVA bind and unbind implementations will allow to prepare translation
> context with CPU page tables that can be programmed into host iommu
> hardware to realize shared address space utilization between the CPU
> and virtualized device
On Fri, Apr 23, 2021 at 03:21:44PM +0530, Vivek Gautam wrote:
> Implementing the alloc_shared_cd and free_shared_cd in cd-lib, and
> start using them for arm-smmu-v3-sva implementation.
>
> Signed-off-by: Vivek Gautam
> ---
> .../arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c | 71
>
On Fri, Apr 23, 2021 at 03:21:41PM +0530, Vivek Gautam wrote:
> Add a feature flag to virtio iommu for Shared virtual addressing
> (SVA). This feature would indicate the availablily path for handling
> device page faults, and the provision for sending page response.
In this case the feature should
On Fri, Apr 23, 2021 at 03:21:39PM +0530, Vivek Gautam wrote:
> Redirect the incoming page faults to the registered fault handler
> that can take the fault information such as, pasid, page request
> group-id, address and pasid flags.
>
> Signed-off-by: Vivek Gautam
> ---
> drivers/iommu/virtio-i
On Fri, Apr 23, 2021 at 03:21:38PM +0530, Vivek Gautam wrote:
> Keeping a record of list of endpoints that are served by the virtio-iommu
> device would help in redirecting the requests of page faults to the
> correct endpoint device to handle such requests.
>
> Signed-off-by: Vivek Gautam
> ---
ek Gautam
> Cc: Joerg Roedel
> Cc: Will Deacon
> Cc: Robin Murphy
> Cc: Jean-Philippe Brucker
> Cc: Eric Auger
> Cc: Alex Williamson
> Cc: Kevin Tian
> Cc: Jacob Pan
> Cc: Liu Yi L
> Cc: Lorenzo Pieralisi
> Cc: Shameerali Kolothum Thodi
> ---
> inc
On Tue, Jul 13, 2021 at 10:34:03PM +0200, Arnd Bergmann wrote:
> > > Is it going to be a problem if two devices in kernel use the same
> > > of_node ?
> >
> > There shouldn't be. We have nodes be multiple providers (e.g clocks
> > and resets) already.
>
> I think this would be a little different,
ing them on Arm isn't completely straightforward so is left for
future work. As an intermediate step, simplify the x86 callers by
passing dummy limits.
Signed-off-by: Jean-Philippe Brucker
---
include/linux/dma-iommu.h | 4 ++--
arch/arm64/mm/dma-mapping.c | 2 +-
drivers/iommu/amd/iommu.
efore step (2), it is deferred until the IOMMU is
initialized, then retried.
Tested-by: Eric Auger
Reviewed-by: Eric Auger
Signed-off-by: Jean-Philippe Brucker
---
drivers/acpi/Kconfig | 3 +
drivers/iommu/Kconfig | 1 +
drivers/acpi/Makefile | 2 +
include/linux/acpi_vi
s and call
iommu_setup_dma_ops() from probe_finalize().
Acked-by: Joerg Roedel
Acked-by: Michael S. Tsirkin
Tested-by: Eric Auger
Reviewed-by: Eric Auger
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/Kconfig| 3 ++-
drivers/iommu/dma-iommu.c| 1 +
drivers/iommu/virtio-iommu.c | 11
Extract the code that sets up the IOMMU infrastructure from IORT, since
it can be reused by VIOT. Move it one level up into a new
acpi_iommu_configure_id() function, which calls the IORT parsing
function which in turn calls the acpi_iommu_fwspec_init() helper.
Signed-off-by: Jean-Philippe Brucker
Extract generic DMA setup code out of IORT, so it can be reused by VIOT.
Keep it in drivers/acpi/arm64 for now, since it could break x86
platforms that haven't run this code so far, if they have invalid
tables.
Reviewed-by: Eric Auger
Signed-off-by: Jean-Philippe Brucker
---
drivers/acpi/
and IOMMU.
This series is at [3].
[1]
https://lore.kernel.org/linux-iommu/20210610075130.67517-1-jean-phili...@linaro.org/
[2] https://jpbrucker.net/git/qemu/log/?h=virtio-iommu/acpi
[3] https://jpbrucker.net/git/linux/log/?h=virtio-iommu/acpi
Jean-Philippe Brucker (5):
ACPI: arm64: Move DMA
On Wed, Jun 16, 2021 at 06:02:39PM +0100, Robin Murphy wrote:
> > diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
> > index c62e19bed302..175f8eaeb5b3 100644
> > --- a/drivers/iommu/dma-iommu.c
> > +++ b/drivers/iommu/dma-iommu.c
> > @@ -1322,7 +1322,9 @@ void iommu_setup_dma_ops
On Wed, Jun 16, 2021 at 05:28:59PM +0200, Eric Auger wrote:
> Hi Jean,
>
> On 6/10/21 9:51 AM, Jean-Philippe Brucker wrote:
> > diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> > index 4bf1dd3eb041..7bd1d2199141 100644
> > --- a/arch/arm64/mm/d
On Thu, Jun 17, 2021 at 01:50:59PM +0200, Rafael J. Wysocki wrote:
> > diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> > index be7da23fad76..b835ca702ff0 100644
> > --- a/drivers/acpi/bus.c
> > +++ b/drivers/acpi/bus.c
> > @@ -27,6 +27,7 @@
> > #include
> > #endif
> > #include
> > +#inc
On Wed, Jun 16, 2021 at 03:26:08PM +0200, Eric Auger wrote:
> > + default:
> > + pr_warn("Unsupported node %x\n", hdr->type);
> > + ret = 0;
> > + goto err_free;
> > + }
> > +
> > + /*
> > +* To be compatible with future versions of the table which may includ
Hi Eric,
On Wed, Jun 16, 2021 at 11:35:13AM +0200, Eric Auger wrote:
> > -const struct iommu_ops *iort_iommu_configure_id(struct device *dev,
> > - const u32 *id_in)
> > +int iort_iommu_configure_id(struct device *dev, const u32 *id_in)
> > {
> > stru
Hi Rafael,
On Thu, Jun 10, 2021 at 09:51:27AM +0200, Jean-Philippe Brucker wrote:
> Add a driver for the ACPI VIOT table, which provides topology
> information for para-virtual IOMMUs. Enable virtio-iommu on
> non-devicetree platforms, including x86.
>
> Since v3 [1] I fixed
Hi,
Not being very familiar with GPIO, I just have a few general comments and
one on the config space layout
On Thu, Jun 10, 2021 at 12:16:46PM +, Viresh Kumar via Stratos-dev wrote:
> +static int virtio_gpio_req(struct virtio_gpio *vgpio, u16 type, u16 gpio,
> +u8 txd
On Thu, Jun 10, 2021 at 04:00:39PM +, Enrico Weigelt, metux IT consult via
Stratos-dev wrote:
> On 10.06.21 15:22, Arnd Bergmann wrote:
>
> > Can you give an example of how this would be hooked up to other drivers
> > using those gpios. Can you give an example of how using the "gpio-keys" or
to work around the check.
Signed-off-by: Jean-Philippe Brucker
---
include/linux/dma-iommu.h | 4 ++--
arch/arm64/mm/dma-mapping.c | 2 +-
drivers/iommu/amd/iommu.c | 2 +-
drivers/iommu/dma-iommu.c | 12 ++--
drivers/iommu/intel/iommu.c | 2 +-
5 files changed, 11 insertions(+
nding the endpoint to a driver,
find the associated IOMMU ops. Register them, along with the
endpoint ID, into the device's iommu_fwspec.
If step (3) happens before step (2), it is deferred until the IOMMU is
initialized, then retried.
Signed-off-by: Jean-Philippe Brucker
---
dr
e(). The base parameter can be zero because dma-iommu
already removes the first IOVA page, and the limit parameter can be
U64_MAX because it's only checked against the domain geometry. Simplify
calls to iommu_setup_dma_ops().
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/amd/i
Extract the code that sets up the IOMMU infrastructure from IORT, since
it can be reused by VIOT. Move it one level up into a new
acpi_iommu_configure_id() function, which calls the IORT parsing
function which in turn calls the acpi_iommu_fwspec_init() helper.
Signed-off-by: Jean-Philippe Brucker
ops() from
probe_finalize().
Acked-by: Joerg Roedel
Acked-by: Michael S. Tsirkin
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/Kconfig| 3 ++-
drivers/iommu/dma-iommu.c| 1 +
drivers/iommu/virtio-iommu.c | 8
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/dri
Extract generic DMA setup code out of IORT, so it can be reused by VIOT.
Keep it in drivers/acpi/arm64 for now, since it could break x86
platforms that haven't run this code so far, if they have invalid
tables.
Signed-off-by: Jean-Philippe Brucker
---
drivers/acpi/arm64/Makefile | 1 +
in
/log/?h=virtio-iommu/acpi
[3] https://jpbrucker.net/git/linux/log/?h=virtio-iommu/acpi
Jean-Philippe Brucker (6):
ACPI: arm64: Move DMA setup operations out of IORT
ACPI: Move IOMMU setup code out of IORT
ACPI: Add driver for the VIOT table
iommu/dma: Pass address limit rather than size to
On Mon, Jun 07, 2021 at 02:39:28PM -0500, Rob Herring wrote:
> Convert the virtio-mmio binding to DT schema format.
>
> Cc: "Michael S. Tsirkin"
> Cc: Jason Wang
> Cc: Jean-Philippe Brucker
> Cc: virtualization@lists.linux-foundation.org
> Signed-off-by: Rob
ops() from
probe_finalize().
Acked-by: Joerg Roedel
Acked-by: Michael S. Tsirkin
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/Kconfig| 3 ++-
drivers/iommu/dma-iommu.c| 1 +
drivers/iommu/virtio-iommu.c | 8
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/dri
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