x86/cpu: Drop configuration options for early 64-bit CPUs

The x86 CPU selection menu is confusing for a number of reasons:

When configuring 32-bit kernels, it shows a small number of early 64-bit
m

x86/cpu: Drop configuration options for early 64-bit CPUs

The x86 CPU selection menu is confusing for a number of reasons:

When configuring 32-bit kernels, it shows a small number of early 64-bit
microarchitectures (K8, Core 2) but not the regular generic 64-bit target
that is the normal default. There is no longer a reason to run 32-bit
kernels on production 64-bit systems, so only actual 32-bit CPUs need
to be shown here.

When configuring 64-bit kernels, the options also pointless as there is
no way to pick any CPU from the past 15 years, leaving GENERIC_CPU as
the only sensible choice.

Address both of the above by removing the obsolete options and making
all 64-bit kernels run on both Intel and AMD CPUs from any generation.
Testing generic 32-bit kernels on 64-bit hardware remains possible,
just not building a 32-bit kernel that requires a 64-bit CPU.

Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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mei: rework Kconfig dependencies

The dependencies in the mei framework are inconsistent, with some symbols
using 'select INTEL_MEI' to force it being enabled and others using
'depends on INTEL_MEI'.

mei: rework Kconfig dependencies

The dependencies in the mei framework are inconsistent, with some symbols
using 'select INTEL_MEI' to force it being enabled and others using
'depends on INTEL_MEI'.

In general, one should not select user-visible symbols, so change all
of these to normal dependencies, but change the default on INTEL_MEI to
be enabled when building a kernel for an Intel CPU with ME or a generic
x86 kernel.

Having consistent dependencies makes the 'menuconfig' listing more
readable by using proper indentation.

A large if/endif block is just a simpler syntax than repeating the
dependencies for each symbol.

Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Wentong Wu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: fix vsc dependency

CONFIG_INTEL_MEI_VSC_HW can be set to built-in even with CONFIG_MEI=m,
but then the driver is not built because Kbuild never enters the
drivers/misc/mei directory for built-i

mei: fix vsc dependency

CONFIG_INTEL_MEI_VSC_HW can be set to built-in even with CONFIG_MEI=m,
but then the driver is not built because Kbuild never enters the
drivers/misc/mei directory for built-in files, leading to a link
failure:

ERROR: modpost: "vsc_tp_reset" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_init" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_xfer" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_need_read" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_intr_enable" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_intr_synchronize" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_intr_disable" [drivers/misc/mei/mei-vsc.ko] undefined!
ERROR: modpost: "vsc_tp_register_event_cb" [drivers/misc/mei/mei-vsc.ko] undefined!

Add an explicit dependency on CONFIG_MEI that was apparently missing,
to ensure the VSC_HW driver cannot be built-in with MEI itself being
a loadable module.

Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Sakari Ailus <[email protected]>
Reviewed-by: Wentong Wu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: Add MEI hardware support for IVSC device

The protocol used for the IVSC device to communicate with HOST is MEI.
The MEI hardware interfaces for the IVSC device are implemented.

The APIs are ex

mei: Add MEI hardware support for IVSC device

The protocol used for the IVSC device to communicate with HOST is MEI.
The MEI hardware interfaces for the IVSC device are implemented.

The APIs are exposed by MEI framework to mei clients, e.g. mei_csi and
mei_ace.

Signed-off-by: Wentong Wu <[email protected]>
Reviewed-by: Alexander Usyskin <[email protected]>
Reviewed-by: Sakari Ailus <[email protected]>
Tested-by: Hao Yao <[email protected]>
Acked-by: Tomas Winkler <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: Add transport driver for IVSC device

The Intel visual sensing controller (IVSC) device is designed to control
the camera sharing between host IPU for media usage and IVSC for context
sensing (f

mei: Add transport driver for IVSC device

The Intel visual sensing controller (IVSC) device is designed to control
the camera sharing between host IPU for media usage and IVSC for context
sensing (face detection).

IVSC is exposed to HOST as an SPI device and the message protocol over
the SPI BUS for communicating with the IVSC device is implemented. This
is the backend of mei framework for IVSC device, which usually handles
the hardware data transfer. The mei_csi and mei_ace are the clients of
IVSC mei framework.

The firmware downloading for the IVSC device is implemented as well.

Signed-off-by: Wentong Wu <[email protected]>
Reviewed-by: Sakari Ailus <[email protected]>
Tested-by: Hao Yao <[email protected]>
Acked-by: Tomas Winkler <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: gsc_proxy: add gsc proxy driver

Add GSC proxy driver. It to allows messaging between GSC component
on Intel graphics card and CSE device.

Cc: Alan Previn <[email protected]>
S

mei: gsc_proxy: add gsc proxy driver

Add GSC proxy driver. It to allows messaging between GSC component
on Intel graphics card and CSE device.

Cc: Alan Previn <[email protected]>
Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Daniele Ceraolo Spurio <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Alan Previn <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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mei: add support for graphics system controller (gsc) devices

GSC is a graphics system controller, based on CSE, it provides
a chassis controller for graphics discrete cards, as well as it
supports

mei: add support for graphics system controller (gsc) devices

GSC is a graphics system controller, based on CSE, it provides
a chassis controller for graphics discrete cards, as well as it
supports media protection on selected devices.

mei_gsc binds to a auxiliary devices exposed by Intel discrete
driver i915.

v2: fix error check in mei_gsc_probe
v3: update MODULE_LICENSE ("GPL" is preferred over "GPL v2" and they
both map to GPL version 2)

Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Daniele Ceraolo Spurio <[email protected]>
Acked-by: Rodrigo Vivi <[email protected]> #v3
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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mei: pxp: export pavp client to me client bus

Export PAVP client to work with i915 driver,
for binding it uses kernel component framework.

v2:drop debug prints, refactor match code to match mei_hdc

mei: pxp: export pavp client to me client bus

Export PAVP client to work with i915 driver,
for binding it uses kernel component framework.

v2:drop debug prints, refactor match code to match mei_hdcp (Tomas)

Signed-off-by: Vitaly Lubart <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Daniele Ceraolo Spurio <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
Signed-off-by: Rodrigo Vivi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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Revert "mei: virtio: virtualization frontend driver"

This reverts commit d162219c655c8cf8003128a13840d6c1e183fb80.

The device uses a VIRTIO device ID out of a not-for-production range.
Releasing Li

Revert "mei: virtio: virtualization frontend driver"

This reverts commit d162219c655c8cf8003128a13840d6c1e183fb80.

The device uses a VIRTIO device ID out of a not-for-production range.
Releasing Linux using an ID out of this range will make it conflict with
development setups. An official request to reserve an ID for an MEI
device is yet to be submitted to the virtio TC, thus there's no chance
it will be reserved and fixed in time before the next release.

Once requested it usually takes 2-3 weeks to land in the spec, which
means the device can be supported with the official ID in the next Linux
version if contributors act quickly.

Signed-off-by: Michael S. Tsirkin <[email protected]>
Cc: Tomas Winkler <[email protected]>
Cc: Alexander Usyskin <[email protected]>
Cc: Wang Yu <[email protected]>
Cc: Liu Shuo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: virtio: virtualization frontend driver

This frontend driver implements MEI hw interface based on virtio
framework to let MEI driver work without changes under virtualization.
It requires a back

mei: virtio: virtualization frontend driver

This frontend driver implements MEI hw interface based on virtio
framework to let MEI driver work without changes under virtualization.
It requires a backend service in the ACRN device-model on the service
OS side to make it work. The backend service will emulate mei routing
and assign vtags for each mei vritio device.

The backend service is available in ACRN device-model at github.
For more information, please refer to https://projectacrn.org

The ACRN virtio sub device id for MEI is is 0x8602.

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Wang Yu <[email protected]>
Signed-off-by: Liu Shuo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each

mei: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <[email protected]>
Acked-by: Tomas Winkler <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: hdcp: use own Kconfig file

The mei/hdcp module have its own Makefile
so naturally it should have associated Kconfig
in the same directory.

Signed-off-by: Tomas Winkler <[email protected]

mei: hdcp: use own Kconfig file

The mei/hdcp module have its own Makefile
so naturally it should have associated Kconfig
in the same directory.

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: adjust the copyright notice in the files.

Use unified version of the copyright notice in the files
Update copyright years according the year the files
were touched, except this patch and SPDX c

mei: adjust the copyright notice in the files.

Use unified version of the copyright notice in the files
Update copyright years according the year the files
were touched, except this patch and SPDX conversions.

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: add missing SPDX tag to mei Kconfig

Add SPDX tag with GPLv2 license to mei Kconfig.

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfounda

mei: add missing SPDX tag to mei Kconfig

Add SPDX tag with GPLv2 license to mei Kconfig.

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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misc/mei/hdcp: Client driver for HDCP application

ME FW contributes a vital role in HDCP2.2 authentication.
HDCP2.2 driver needs to communicate to ME FW for each step of the
HDCP2.2 authentication.

misc/mei/hdcp: Client driver for HDCP application

ME FW contributes a vital role in HDCP2.2 authentication.
HDCP2.2 driver needs to communicate to ME FW for each step of the
HDCP2.2 authentication.

ME FW prepare and HDCP2.2 authentication parameters and encrypt them
as per spec. With such parameter Driver prepares HDCP2.2 auth messages
and communicate with HDCP2.2 sink.

Similarly HDCP2.2 sink's response is shared with ME FW for decrypt and
verification.

Once All the steps of HDCP2.2 authentications are complete on driver's
request ME FW will configure the port as authenticated and supply the
HDCP keys to the Gen HW for encryption.

Only after this stage HDCP2.2 driver can start the HDCP2.2 encryption
for a port.

ME FW is interfaced to kernel through MEI Bus Driver. To obtain the
HDCP2.2 services from the ME FW through MEI Bus driver MEI Client
Driver is developed.

v2:
hdcp files are moved to drivers/misc/mei/hdcp/ [Tomas]
v3:
Squashed the Kbuild support [Tomas]
UUID renamed and Module License is modified [Tomas]
drv_data is set to null at remove [Tomas]
v4:
Module name is changed to "MEI HDCP"
I915 Selects the MEI_HDCP
v5:
Remove redundant text from the License header
Fix malformed licence
Removed the drv_data resetting.
v6:
K-Doc addition. [Tomas]
v7:
%s/UUID_LE/GUID_INIT [Tomas]
GPL Ver is 2.0 than 2.0+ [Tomas]
v8:
Added more info into Kconfig addition [Tomas]

Signed-off-by: Ramalingam C <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Acked-by: Tomas Winkler <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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mei: wd: drop the watchdog code from the core mei driver

Instead of integrating the iAMT watchdog in the mei core driver
we will create a watchdog device on the mei client bus and
create a driver fo

mei: wd: drop the watchdog code from the core mei driver

Instead of integrating the iAMT watchdog in the mei core driver
we will create a watchdog device on the mei client bus and
create a driver for it.

This patch removes the watchdog code from the mei core driver.

Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: fix compilation error with missing WATCHDOG_CORE

Kconfig is not transitive so INTEL_ME_TXE has to depend
on WATCHDOG_CORE as well

ERROR: "watchdog_unregister_device" [drivers/misc/mei/mei.ko]

mei: fix compilation error with missing WATCHDOG_CORE

Kconfig is not transitive so INTEL_ME_TXE has to depend
on WATCHDOG_CORE as well

ERROR: "watchdog_unregister_device" [drivers/misc/mei/mei.ko] undefined!
ERROR: "watchdog_register_device" [drivers/misc/mei/mei.ko] undefined!

Reported-by: Fengguang Wu <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: txe: add Kbuild for TXE device

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

mei: move mei-me to separate module

mei layer provides host bus message layer, client management,
and os interface

mei-me - provides access to ME hardware through
the pci bus

Signed-off-by: Tomas

mei: move mei-me to separate module

mei layer provides host bus message layer, client management,
and os interface

mei-me - provides access to ME hardware through
the pci bus

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: fix undefined wd symbols when MEI_ME is not set

Currently watchdog client is compiled with MEI and not
with MEI_ME

Fixes error:
When CONFIG_WATCHDOG is not enabled:

ERROR: "watchdog_unregiste

mei: fix undefined wd symbols when MEI_ME is not set

Currently watchdog client is compiled with MEI and not
with MEI_ME

Fixes error:
When CONFIG_WATCHDOG is not enabled:

ERROR: "watchdog_unregister_device" [drivers/misc/mei/mei.ko] undefined!
ERROR: "watchdog_register_device" [drivers/misc/mei/mei.ko] undefined

Reported-by: Randy Dunlap <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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mei: separate compilation of the ME hardware specifics

We add struct mei_hw_ops to virtualize access to hw specific
configurations. This allows us to separate the compilation
of the ME interface fro

mei: separate compilation of the ME hardware specifics

We add struct mei_hw_ops to virtualize access to hw specific
configurations. This allows us to separate the compilation
of the ME interface from the ME hardware specifics

Signed-off-by: Tomas Winkler <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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char/misc: remove CONFIG_EXPERIMENTAL dependencies

As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <[email protected]>
Cc:

char/misc: remove CONFIG_EXPERIMENTAL dependencies

As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Tomas Winkler <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Paul Bolle <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Anatolij Gustschin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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Staging: mei: move the mei code out of staging

It's been cleaned up, and there's nothing else left to do, so move it
out of staging into drivers/misc/ where all can use it now.

Cc: Tomas Winkler <t

Staging: mei: move the mei code out of staging

It's been cleaned up, and there's nothing else left to do, so move it
out of staging into drivers/misc/ where all can use it now.

Cc: Tomas Winkler <[email protected]>
Cc: Oren Weil <[email protected]>
Cc: Alan Cox <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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