; > #endif
> > }
> >
> > -bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
> > +static bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
> > {
> > #ifdef CONFIG_ACPI
> > struct device *dev = vdev->device;
> > @@ -637,7 +637,7 @@ static const struct vfio_device_ops vfio_platform_ops =
> > {
> > .mmap = vfio_platform_mmap,
> > };
> >
> > -int vfio_platform_of_probe(struct vfio_platform_device *vdev,
> > +static int vfio_platform_of_probe(struct vfio_platform_device *vdev,
> > struct device *dev)
> > {
> > int ret;
> >
>
> Reviewed-by: Eric Auger
>
>
> Thanks!
>
> Eric
Reviewed-by: Baptiste Reynal
Thanks,
Baptiste
that support.
Since safety issues have already been addressed for the PCI patch
series, I don't see any reason not to enable it. You might extend the
commit message to remind those issues.
Best regards,
Baptiste
>
> Best Regards
>
> Eric
> >
> > Alex
> >
> >
From: Antonios Motakis
Certain properties of a device are accessible as an array of unsigned
integers, either u64, u32, u16, or u8. Let the VFIO user query this
type of device properties.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
v4 -> v5:
- fix return error w
From: Antonios Motakis
Certain device properties (e.g. the device node name, the compatible
string), are available as a list of strings (separated by the null
terminating character). Let the VFIO user query this type of properties.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
via the introduced
ioctl VFIO_DEVICE_GET_DEV_PROPERTY.
The user needs to know the name and the data type of the property he is
accessing.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
v4 -> v5:
- add a limit size to namesz (128)
- remove flags propagation
- replace E2
From: Antonios Motakis
Certain properties of a device are accessible as an array of unsigned
integers, either u64, u32, u16, or u8. Let the VFIO user query this
type of device properties.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/properties.c
via the introduced
ioctl VFIO_DEVICE_GET_DEV_PROPERTY.
The user needs to know the name and the data type of the property he is
accessing.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
v3 -> v4:
- added flags placeholder in vfio_dev_properties
- ioctl returns -E2BIG if
From: Antonios Motakis
Certain device properties (e.g. the device node name, the compatible
string), are available as a list of strings (separated by the null
terminating character). Let the VFIO user query this type of properties.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
Thanks for the point Krzysztof.
Acked-by: Baptiste Reynal
On Fri, Jul 10, 2015 at 8:37 AM, Krzysztof Kozlowski
wrote:
> platform_driver does not need to set an owner because
> platform_driver_register() will set it.
>
> Signed-off-by: Krzysztof Kozlowski
>
> ---
>
&g
This issue has already been fixed here :
http://www.spinics.net/lists/arm-kernel/msg424824.html
Regards,
Baptiste
On Tue, Jun 23, 2015 at 2:07 PM, Sricharan R wrote:
> Patch 'fix ARM_SMMU_FEAT_TRANS_OPS condition' changed the check
> for ARM_SMMU_FEAT_TRANS_OPS to be based on presence of stage1
ks,
>
> Alex
>
Indeed, I'd rather wait for someone to show up with some use cases and
tests before removing this condition.
Regards,
Baptiste
>> On 06/22/2015 05:49 PM, Baptiste Reynal wrote:
>> > Acked-by: Baptiste Reynal
>> > Tested-by: Baptiste Reynal
>
Acked-by: Baptiste Reynal
On Thu, Jun 18, 2015 at 8:06 PM, Alex Williamson
wrote:
> Add Baptiste Reynal as the VFIO platform driver sub-maintainer.
>
> Signed-off-by: Alex Williamson
> Cc: Baptiste Reynal
> ---
> MAINTAINERS |6 ++
> 1 file changed, 6 insertion
Acked-by: Baptiste Reynal
Tested-by: Baptiste Reynal
Out of curiosity, have you get VFIO running on ARM64 without any problems ?
On Mon, Jun 15, 2015 at 11:13 AM, Eric Auger wrote:
> This patch enables building VFIO platform and derivatives on ARM64.
>
> Signed-off-by: E
[1-4/4]
Acked-by: Baptiste Reynal
Tested-by: Baptiste Reynal
Reviewed-by: Baptiste Reynal
On Thu, Jun 18, 2015 at 6:17 PM, Alex Williamson
wrote:
> On Thu, 2015-06-18 at 17:23 +0200, Baptiste Reynal wrote:
>> Hello everyone,
>>
>> I tested and reviewed the patches, eve
also add something like this to MAINTAINERS
> before we go much further?
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d8afd29..c6bf7f6 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10545,6 +10545,12 @@ F: drivers/vfio/
> F: include/linux/vfio.h
> F:
-03-02 at 17:59 +0100, Baptiste Reynal wrote:
>> > From: Antonios Motakis
>> >
>> > Now we have finally completely decoupled virqfd from VFIO_PCI. We can
>> > initialize it from the VFIO generic code, in order to safely use it from
>> > multiple independe
available for all
the IOMMUs of the container used.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
include/uapi/linux/vfio.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 5fb3d46..30801a7 100644
--- a/include
: Baptiste Reynal
---
drivers/vfio/vfio_iommu_type1.c | 23 ++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index a5847e8..ec313e5 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio
From: Antonios Motakis
Currently a VFIO driver's IOMMU capabilities are encoded as a series of
numerical defines. Replace this with an enum for future maintainability.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
include/uapi/linux/vfio.h
From: Antonios Motakis
Replace the function vfio_domains_have_iommu_cache() with a more generic
function vfio_domains_have_iommu_cap() which allows to check all domains
of an vfio_iommu structure for a given cached capability.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
ned-off-by: Baptiste Reynal
---
v1 -> v2:
Add domain stage test (Thanks to Will Deacon)
---
drivers/iommu/arm-smmu.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index fc13dd5..a3adde6 100644
--- a/drivers/iom
: Baptiste Reynal
---
drivers/vfio/vfio_iommu_type1.c | 25 -
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 0ea371b..2bbd311 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers
platform bus
specific code will reside.
This will allow us to implement support for also discovering AMBA devices
and their resources, but still reuse a large part of the VFIO_PLATFORM
implementation.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: added includes in vfio_platform_private.h]
Signed
available for all
the IOMMUs of the container used.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
include/uapi/linux/vfio.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 5fb3d46..30801a7 100644
--- a/include
From: Antonios Motakis
This patch enables the IOCTLs VFIO_DEVICE_GET_REGION_INFO ioctl call,
which allows the user to learn about the available MMIO resources of
a device.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 106
From: Antonios Motakis
Level sensitive interrupts are exposed as maskable and automasked
interrupts and are masked and disabled automatically when they fire.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: Move masked interrupt initialization from "vfio/platform:
trigger an interrup
ed as maskable
and are implemented here using a simple and efficient IRQ handler.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: fix masked interrupt initialization]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_irq.c | 94 ++-
drivers
Signed-off-by: Baptiste Reynal
---
drivers/vfio/pci/vfio_pci_intrs.c | 30 --
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c
b/drivers/vfio/pci/vfio_pci_intrs.c
index f88bfdf..4d38c93 100644
--- a/drivers/vfio/pci
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/Kconfig | 10 ++
drivers/vfio/platform/Makefile | 4
2 files changed, 14 insertions(+)
diff --git a/drivers/vfio/platform/Kconfig b/drivers/vfio/platform/Kconfig
index c51af17..c0a3bff 100644
--- a/drivers/vfio/platform
-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/pci/vfio_pci_intrs.c | 30 --
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c
b/drivers/vfio/pci/vfio_pci_intrs.c
index 7d3c135..1a16da3 100644
From: Antonios Motakis
Now we have finally completely decoupled virqfd from VFIO_PCI. We can
initialize it from the VFIO generic code, in order to safely use it from
multiple independent VFIO bus drivers.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio
From: Antonios Motakis
With this patch the VFIO user will be able to set an eventfd that can be
used in order to mask and unmask IRQs of platform devices.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_irq.c | 47
Signed-off-by: Baptiste Reynal
---
drivers/vfio/pci/Makefile | 3 +-
drivers/vfio/pci/vfio_pci_intrs.c | 215
drivers/vfio/pci/vfio_pci_private.h | 3 -
drivers/vfio/virqfd.c | 213 +++
include/linux
From: Antonios Motakis
The Virqfd code needs to keep accesses to any struct *virqfd safe, but
this comes into play only when creating or destroying eventfds, so sharing
the same spinlock with the VFIO bus driver is not necessary.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 150 ++
drivers/vfio/platform/vfio_platform_private.h | 1 +
2 files changed, 151 insertions(+)
diff --git a/drivers/vfio/platform/vfio_platform_common.c
b/drivers/vfio/platform
From: Antonios Motakis
This patch is a skeleton for the VFIO_DEVICE_SET_IRQS IOCTL, around which
most IRQ functionality is implemented in VFIO.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 52
From: Antonios Motakis
Add support for discovering AMBA devices with VFIO and handle them
similarly to Linux platform devices.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_amba.c | 115 ++
include/uapi/linux
From: Antonios Motakis
Allow to memory map the MMIO regions of the device so userspace can
directly access them. PIO regions are not being handled at this point.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 65
From: Antonios Motakis
Return information for the interrupts exposed by the device.
This patch extends VFIO_DEVICE_GET_INFO with the number of IRQs
and enables VFIO_DEVICE_GET_IRQ_INFO.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/Makefile
VFIO_DEVICE_GET_INFO ioctl call.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: added include in vfio_platform_common.c]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 24 +---
1 file changed, 21 insertions(+), 3 deletions(-)
diff --git a/drivers/vfio
From: Antonios Motakis
Enable building the VFIO PLATFORM driver that allows to use Linux platform
devices with VFIO.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/Kconfig | 1 +
drivers/vfio/Makefile | 1 +
drivers/vfio/platform/Kconfig
From: Antonios Motakis
The functions vfio_pci_virqfd_init and vfio_pci_virqfd_exit are not really
PCI specific, since we plan to reuse the virqfd code with more VFIO drivers
in addition to VFIO_PCI.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: Move rename vfio_pci_virqfd_init and
From: Antonios Motakis
Replace the function vfio_domains_have_iommu_cache() with a more generic
function vfio_domains_have_iommu_cap() which allows to check all domains
of an vfio_iommu structure for a given cached capability.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
From: Antonios Motakis
Driver to bind to Linux platform devices, and callbacks to discover their
resources to be used by the main VFIO PLATFORM code.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform.c | 103
.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: Use bit shifting for domain->caps]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/vfio_iommu_type1.c | 31 ++-
1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/v
From: Antonios Motakis
Currently a VFIO driver's IOMMU capabilities are encoded as a series of
numerical defines. Replace this with an enum for future maintainability.
Signed-off-by: Antonios Motakis
Signed-off-by: Baptiste Reynal
---
include/uapi/linux/vfio.h
This patch is a fix to "iommu/arm-smmu: add support for iova_to_phys
through ATS1PR".
According to ARM documentation, translation registers are optional even
in SMMUv1, so ID0_S1TS needs to be checked to verify their presence.
Signed-off-by: Baptiste Reynal
---
drivers/iommu/arm-
From: Antonios Motakis
VFIO_PCI passes the VFIO device structure *vdev via eventfd to the handler
that implements masking/unmasking of IRQs via an eventfd. We can replace
it in the virqfd infrastructure with an opaque type so we can make use
of the mechanism from other VFIO bus drivers.
Signed-o
From: Antonios Motakis
With this patch the VFIO user will be able to set an eventfd that can be
used in order to mask and unmask IRQs of platform devices.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_irq.c | 47 ---
drivers/vfio/platform/v
From: Antonios Motakis
The virqfd functionality that is used by VFIO_PCI to implement interrupt
masking and unmasking via an eventfd, is generic enough and can be reused
by another driver. Move it to a separate file in order to allow the code
to be shared.
Signed-off-by: Antonios Motakis
---
d
From: Antonios Motakis
The Virqfd code needs to keep accesses to any struct *virqfd safe, but
this comes into play only when creating or destroying eventfds, so sharing
the same spinlock with the VFIO bus driver is not necessary.
Signed-off-by: Antonios Motakis
---
drivers/vfio/pci/vfio_pci_in
From: Antonios Motakis
Now we have finally completely decoupled virqfd from VFIO_PCI. We can
initialize it from the VFIO generic code, in order to safely use it from
multiple independent VFIO bus drivers.
Signed-off-by: Antonios Motakis
---
drivers/vfio/Makefile | 4 +++-
drivers/vfio/pc
From: Antonios Motakis
We want to reuse virqfd functionality in multiple VFIO drivers; before
moving these functions to core VFIO, add the vfio_ prefix to the
virqfd_enable and virqfd_disable functions, and export them so they can
be used from other modules.
Signed-off-by: Antonios Motakis
---
ed as maskable
and are implemented here using a simple and efficient IRQ handler.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: fix masked interrupt initialization]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_irq.c | 94 ++-
drivers
From: Antonios Motakis
The functions vfio_pci_virqfd_init and vfio_pci_virqfd_exit are not really
PCI specific, since we plan to reuse the virqfd code with more VFIO drivers
in addition to VFIO_PCI.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: Move rename vfio_pci_virqfd_init and
From: Antonios Motakis
Level sensitive interrupts are exposed as maskable and automasked
interrupts and are masked and disabled automatically when they fire.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: Move masked interrupt initialization from "vfio/platform:
trigger an interrup
From: Antonios Motakis
VFIO returns a file descriptor which we can use to manipulate the memory
regions of the device. Usually, the user will mmap memory regions that are
addressable on page boundaries, however for memory regions where this is
not the case we cannot provide mmap functionality due
From: Antonios Motakis
Allow to memory map the MMIO regions of the device so userspace can
directly access them. PIO regions are not being handled at this point.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 65
1 file changed,
From: Antonios Motakis
Return information for the interrupts exposed by the device.
This patch extends VFIO_DEVICE_GET_INFO with the number of IRQs
and enables VFIO_DEVICE_GET_IRQ_INFO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/Makefile| 2 +-
drivers/vfio/plat
From: Antonios Motakis
This patch is a skeleton for the VFIO_DEVICE_SET_IRQS IOCTL, around which
most IRQ functionality is implemented in VFIO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 52 +--
drivers/vfio/platform/vfio_platform_ir
From: Antonios Motakis
Enable building the VFIO PLATFORM driver that allows to use Linux platform
devices with VFIO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/Kconfig | 1 +
drivers/vfio/Makefile | 1 +
drivers/vfio/platform/Kconfig | 9 +
drivers/vfio/platfo
From: Antonios Motakis
This patch enables the IOCTLs VFIO_DEVICE_GET_REGION_INFO ioctl call,
which allows the user to learn about the available MMIO resources of
a device.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 106 +-
driver
VFIO_DEVICE_GET_INFO ioctl call.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: added include in vfio_platform_common.c]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_common.c | 24 +---
1 file changed, 21 insertions(+), 3 deletions(-)
diff --git a/drivers/vfio
From: Antonios Motakis
Driver to bind to Linux platform devices, and callbacks to discover their
resources to be used by the main VFIO PLATFORM code.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform.c | 103 ++
include/uapi/linux/vfio.h
platform bus
specific code will reside.
This will allow us to implement support for also discovering AMBA devices
and their resources, but still reuse a large part of the VFIO_PLATFORM
implementation.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: added includes in vfio_platform_private.h]
Signed
From: Antonios Motakis
This patch enables the IOCTLs VFIO_DEVICE_GET_REGION_INFO ioctl call,
which allows the user to learn about the available MMIO resources of
a device.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 106 +-
driver
From: Antonios Motakis
Allow to memory map the MMIO regions of the device so userspace can
directly access them. PIO regions are not being handled at this point.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 65
1 file changed,
From: Antonios Motakis
Now we have finally completely decoupled virqfd from VFIO_PCI. We can
initialize it from the VFIO generic code, in order to safely use it from
multiple independent VFIO bus drivers.
Signed-off-by: Antonios Motakis
---
drivers/vfio/Makefile | 4 +++-
drivers/vfio/pc
From: Antonios Motakis
The Virqfd code needs to keep accesses to any struct *virqfd safe, but
this comes into play only when creating or destroying eventfds, so sharing
the same spinlock with the VFIO bus driver is not necessary.
Signed-off-by: Antonios Motakis
---
drivers/vfio/pci/vfio_pci_in
From: Antonios Motakis
This patch is a skeleton for the VFIO_DEVICE_SET_IRQS IOCTL, around which
most IRQ functionality is implemented in VFIO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_common.c | 52 +--
drivers/vfio/platform/vfio_platform_ir
From: Antonios Motakis
The virqfd functionality that is used by VFIO_PCI to implement interrupt
masking and unmasking via an eventfd, is generic enough and can be reused
by another driver. Move it to a separate file in order to allow the code
to be shared.
Signed-off-by: Antonios Motakis
---
d
From: Antonios Motakis
VFIO_PCI passes the VFIO device structure *vdev via eventfd to the handler
that implements masking/unmasking of IRQs via an eventfd. We can replace
it in the virqfd infrastructure with an opaque type so we can make use
of the mechanism from other VFIO bus drivers.
Signed-o
From: Antonios Motakis
With this patch the VFIO user will be able to set an eventfd that can be
used in order to mask and unmask IRQs of platform devices.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_irq.c | 47 ---
drivers/vfio/platform/v
From: Antonios Motakis
We want to reuse virqfd functionality in multiple VFIO drivers; before
moving these functions to core VFIO, add the vfio_ prefix to the
virqfd_enable and virqfd_disable functions, and export them so they can
be used from other modules.
Signed-off-by: Antonios Motakis
---
From: Antonios Motakis
Level sensitive interrupts are exposed as maskable and automasked
interrupts and are masked and disabled automatically when they fire.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform_irq.c | 99 ++-
drivers/vfio/platfor
From: Antonios Motakis
The functions vfio_pci_virqfd_init and vfio_pci_virqfd_exit are not really
PCI specific, since we plan to reuse the virqfd code with more VFIO drivers
in addition to VFIO_PCI.
Signed-off-by: Antonios Motakis
---
drivers/vfio/pci/vfio_pci.c | 6 +++---
drivers/vfio/
From: Antonios Motakis
VFIO returns a file descriptor which we can use to manipulate the memory
regions of the device. Usually, the user will mmap memory regions that are
addressable on page boundaries, however for memory regions where this is
not the case we cannot provide mmap functionality due
From: Antonios Motakis
Enable building the VFIO PLATFORM driver that allows to use Linux platform
devices with VFIO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/Kconfig | 1 +
drivers/vfio/Makefile | 1 +
drivers/vfio/platform/Kconfig | 9 +
drivers/vfio/platfo
ed as maskable
and are implemented here using a simple and efficient IRQ handler.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: fix masked interrupt initialization]
Signed-off-by: Baptiste Reynal
---
drivers/vfio/platform/vfio_platform_irq.c | 98 ++-
drivers
From: Antonios Motakis
Return information for the interrupts exposed by the device.
This patch extends VFIO_DEVICE_GET_INFO with the number of IRQs
and enables VFIO_DEVICE_GET_IRQ_INFO.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/Makefile| 2 +-
drivers/vfio/plat
From: Antonios Motakis
A VFIO userspace driver will start by opening the VFIO device
that corresponds to an IOMMU group, and will use the ioctl interface
to get the basic device info, such as number of memory regions and
interrupts, and their properties. This patch enables the
VFIO_DEVICE_GET_INF
From: Antonios Motakis
Driver to bind to Linux platform devices, and callbacks to discover their
resources to be used by the main VFIO PLATFORM code.
Signed-off-by: Antonios Motakis
---
drivers/vfio/platform/vfio_platform.c | 103 ++
include/uapi/linux/vfio.h
platform bus
specific code will reside.
This will allow us to implement support for also discovering AMBA devices
and their resources, but still reuse a large part of the VFIO_PLATFORM
implementation.
Signed-off-by: Antonios Motakis
[Baptiste Reynal: added includes in vfio_platform_private.h]
Signed
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