vfio/platform: Cleanup Kconfig

Like vfio-pci, there's also a base module here where vfio-amba depends on
vfio-platform, when really it only needs vfio-platform-base. Create a
sub-menu for platform

vfio/platform: Cleanup Kconfig

Like vfio-pci, there's also a base module here where vfio-amba depends on
vfio-platform, when really it only needs vfio-platform-base. Create a
sub-menu for platform drivers and a nested menu for reset drivers. Cleanup
Makefile to make use of new CONFIG_VFIO_PLATFORM_BASE for building the
shared modules and traversing reset modules.

Reviewed-by: Cédric Le Goater <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

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vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'

This results in less kconfig wordage and a simpler understanding of the
required "depends on" to create the menu structure.

Th

vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'

This results in less kconfig wordage and a simpler understanding of the
required "depends on" to create the menu structure.

The next patch increases the nesting level a lot so this is a nice
preparatory simplification.

Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Yishai Hadas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

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vfio: Use select for eventfd

If VFIO_VIRQFD is required then turn on eventfd automatically.
The majority of kconfig users of the EVENTFD use select not depends on.

Signed-off-by: Jason Gunthorpe <j

vfio: Use select for eventfd

If VFIO_VIRQFD is required then turn on eventfd automatically.
The majority of kconfig users of the EVENTFD use select not depends on.

Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Yishai Hadas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

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ARM: amba: Allow some ARM_AMBA users to compile with COMPILE_TEST

CONFIG_VFIO_AMBA has a light use of AMBA, adding some inline fallbacks
when AMBA is disabled will allow it to be compiled under COMP

ARM: amba: Allow some ARM_AMBA users to compile with COMPILE_TEST

CONFIG_VFIO_AMBA has a light use of AMBA, adding some inline fallbacks
when AMBA is disabled will allow it to be compiled under COMPILE_TEST and
make VFIO easier to maintain.

Signed-off-by: Jason Gunthorpe <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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vfio-platform: Add COMPILE_TEST to VFIO_PLATFORM

x86 can build platform bus code too, so vfio-platform and all the platform
reset implementations compile successfully on x86.

Signed-off-by: Jason G

vfio-platform: Add COMPILE_TEST to VFIO_PLATFORM

x86 can build platform bus code too, so vfio-platform and all the platform
reset implementations compile successfully on x86.

Signed-off-by: Jason Gunthorpe <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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VFIO: platform: enable ARM64 build

This patch enables building VFIO platform and derivatives on ARM64.

Signed-off-by: Eric Auger <[email protected]>
Acked-by: Baptiste Reynal <b.reynal@virtualo

VFIO: platform: enable ARM64 build

This patch enables building VFIO platform and derivatives on ARM64.

Signed-off-by: Eric Auger <[email protected]>
Acked-by: Baptiste Reynal <[email protected]>
Tested-by: Baptiste Reynal <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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VFIO: platform: Calxeda xgmac reset module

This patch introduces a module that registers and implements a basic
reset function for the Calxeda xgmac device. This latter basically disables
interrupts

VFIO: platform: Calxeda xgmac reset module

This patch introduces a module that registers and implements a basic
reset function for the Calxeda xgmac device. This latter basically disables
interrupts and stops DMA transfers.

The reset function code is inherited from the native calxeda xgmac driver.

Signed-off-by: Eric Auger <[email protected]>
Acked-by: Baptiste Reynal <[email protected]>
Tested-by: Baptiste Reynal <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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vfio: Split virqfd into a separate module for vfio bus drivers

An unintended consequence of commit 42ac9bd18d4f ("vfio: initialize
the virqfd workqueue in VFIO generic code") is that the vfio module

vfio: Split virqfd into a separate module for vfio bus drivers

An unintended consequence of commit 42ac9bd18d4f ("vfio: initialize
the virqfd workqueue in VFIO generic code") is that the vfio module
is renamed to vfio_core so that it can include both vfio and virqfd.
That's a user visible change that may break module loading scritps
and it imposes eventfd support as a dependency on the core vfio code,
which it's really not. virqfd is intended to be provided as a service
to vfio bus drivers, so instead of wrapping it into vfio.ko, we can
make it a stand-alone module toggled by vfio bus drivers. This has
the additional benefit of removing initialization and exit from the
core vfio code.

Signed-off-by: Alex Williamson <[email protected]>

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vfio: amba: add the VFIO for AMBA devices module to Kconfig

Enable building the VFIO AMBA driver. VFIO_AMBA depends on VFIO_PLATFORM,
since it is sharing a portion of the code, and it is essentially

vfio: amba: add the VFIO for AMBA devices module to Kconfig

Enable building the VFIO AMBA driver. VFIO_AMBA depends on VFIO_PLATFORM,
since it is sharing a portion of the code, and it is essentially implemented
as a platform device whose resources are discovered via AMBA specific APIs
in the kernel.

Signed-off-by: Antonios Motakis <[email protected]>
Signed-off-by: Baptiste Reynal <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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vfio: platform: add the VFIO PLATFORM module to Kconfig

Enable building the VFIO PLATFORM driver that allows to use Linux platform
devices with VFIO.

Signed-off-by: Antonios Motakis <a.motakis@virt

vfio: platform: add the VFIO PLATFORM module to Kconfig

Enable building the VFIO PLATFORM driver that allows to use Linux platform
devices with VFIO.

Signed-off-by: Antonios Motakis <[email protected]>
Signed-off-by: Baptiste Reynal <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Tested-by: Eric Auger <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

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