mirror of
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Merge 6.10-rc6 into char-misc-next
We need the char/misc/iio fixes in here as well to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
commit
19ed3bb558
1
.mailmap
1
.mailmap
@ -608,6 +608,7 @@ Simon Kelley <simon@thekelleys.org.uk>
|
||||
Sricharan Ramabadhran <quic_srichara@quicinc.com> <sricharan@codeaurora.org>
|
||||
Srinivas Ramana <quic_sramana@quicinc.com> <sramana@codeaurora.org>
|
||||
Sriram R <quic_srirrama@quicinc.com> <srirrama@codeaurora.org>
|
||||
Stanislav Fomichev <sdf@fomichev.me> <sdf@google.com>
|
||||
Stefan Wahren <wahrenst@gmx.net> <stefan.wahren@i2se.com>
|
||||
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
|
||||
Stephen Hemminger <stephen@networkplumber.org> <shemminger@linux-foundation.org>
|
||||
|
||||
@ -788,25 +788,6 @@
|
||||
Documentation/networking/netconsole.rst for an
|
||||
alternative.
|
||||
|
||||
<DEVNAME>:<n>.<n>[,options]
|
||||
Use the specified serial port on the serial core bus.
|
||||
The addressing uses DEVNAME of the physical serial port
|
||||
device, followed by the serial core controller instance,
|
||||
and the serial port instance. The options are the same
|
||||
as documented for the ttyS addressing above.
|
||||
|
||||
The mapping of the serial ports to the tty instances
|
||||
can be viewed with:
|
||||
|
||||
$ ls -d /sys/bus/serial-base/devices/*:*.*/tty/*
|
||||
/sys/bus/serial-base/devices/00:04:0.0/tty/ttyS0
|
||||
|
||||
In the above example, the console can be addressed with
|
||||
console=00:04:0.0. Note that a console addressed this
|
||||
way will only get added when the related device driver
|
||||
is ready. The use of an earlycon parameter in addition to
|
||||
the console may be desired for console output early on.
|
||||
|
||||
uart[8250],io,<addr>[,options]
|
||||
uart[8250],mmio,<addr>[,options]
|
||||
uart[8250],mmio16,<addr>[,options]
|
||||
@ -2192,12 +2173,6 @@
|
||||
Format: 0 | 1
|
||||
Default set by CONFIG_INIT_ON_FREE_DEFAULT_ON.
|
||||
|
||||
init_mlocked_on_free= [MM] Fill freed userspace memory with zeroes if
|
||||
it was mlock'ed and not explicitly munlock'ed
|
||||
afterwards.
|
||||
Format: 0 | 1
|
||||
Default set by CONFIG_INIT_MLOCKED_ON_FREE_DEFAULT_ON
|
||||
|
||||
init_pkru= [X86] Specify the default memory protection keys rights
|
||||
register contents for all processes. 0x55555554 by
|
||||
default (disallow access to all but pkey 0). Can
|
||||
|
||||
@ -59,8 +59,8 @@ properties:
|
||||
- 3
|
||||
|
||||
dma-channels:
|
||||
minItems: 1
|
||||
maxItems: 64
|
||||
minimum: 1
|
||||
maximum: 64
|
||||
|
||||
clocks:
|
||||
minItems: 1
|
||||
|
||||
@ -77,7 +77,7 @@ required:
|
||||
- clocks
|
||||
|
||||
allOf:
|
||||
- $ref: i2c-controller.yaml
|
||||
- $ref: /schemas/i2c/i2c-controller.yaml#
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
|
||||
@ -21,7 +21,7 @@ description: |
|
||||
google,cros-ec-spi or google,cros-ec-i2c.
|
||||
|
||||
allOf:
|
||||
- $ref: i2c-controller.yaml#
|
||||
- $ref: /schemas/i2c/i2c-controller.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
|
||||
@ -128,7 +128,6 @@ required:
|
||||
- cell-index
|
||||
- reg
|
||||
- fsl,fman-ports
|
||||
- ptp-timer
|
||||
|
||||
dependencies:
|
||||
pcs-handle-names:
|
||||
|
||||
@ -29,7 +29,6 @@ properties:
|
||||
- qcom,pm7325-gpio
|
||||
- qcom,pm7550ba-gpio
|
||||
- qcom,pm8005-gpio
|
||||
- qcom,pm8008-gpio
|
||||
- qcom,pm8018-gpio
|
||||
- qcom,pm8019-gpio
|
||||
- qcom,pm8038-gpio
|
||||
@ -126,7 +125,6 @@ allOf:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8008-gpio
|
||||
- qcom,pmi8950-gpio
|
||||
- qcom,pmr735d-gpio
|
||||
then:
|
||||
@ -448,7 +446,6 @@ $defs:
|
||||
- gpio1-gpio10 for pm7325
|
||||
- gpio1-gpio8 for pm7550ba
|
||||
- gpio1-gpio4 for pm8005
|
||||
- gpio1-gpio2 for pm8008
|
||||
- gpio1-gpio6 for pm8018
|
||||
- gpio1-gpio12 for pm8038
|
||||
- gpio1-gpio40 for pm8058
|
||||
|
||||
@ -571,6 +571,7 @@ encoded manner. The codes are the following:
|
||||
um userfaultfd missing tracking
|
||||
uw userfaultfd wr-protect tracking
|
||||
ss shadow stack page
|
||||
sl sealed
|
||||
== =======================================
|
||||
|
||||
Note that there is no guarantee that every flag and associated mnemonic will
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||||
<!-- Created with Inkscape (http://www.inkscape.org/) -->
|
||||
<!-- Updated to inclusive terminology by Wolfram Sang -->
|
||||
|
||||
<svg
|
||||
xmlns:dc="http://purl.org/dc/elements/1.1/"
|
||||
@ -1120,7 +1121,7 @@
|
||||
<rect
|
||||
style="opacity:1;fill:#ffb9b9;fill-opacity:1;stroke:#f00000;stroke-width:2.8125;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="rect4424-3-2-9-7"
|
||||
width="112.5"
|
||||
width="134.5"
|
||||
height="113.75008"
|
||||
x="112.5"
|
||||
y="471.11221"
|
||||
@ -1133,15 +1134,15 @@
|
||||
y="521.46259"
|
||||
id="text4349"><tspan
|
||||
sodipodi:role="line"
|
||||
x="167.5354"
|
||||
x="178.5354"
|
||||
y="521.46259"
|
||||
style="font-size:25px;line-height:1.25;font-family:sans-serif;text-align:center;text-anchor:middle"
|
||||
id="tspan1273">I2C</tspan><tspan
|
||||
sodipodi:role="line"
|
||||
x="167.5354"
|
||||
x="178.5354"
|
||||
y="552.71259"
|
||||
style="font-size:25px;line-height:1.25;font-family:sans-serif;text-align:center;text-anchor:middle"
|
||||
id="tspan1285">Master</tspan></text>
|
||||
id="tspan1285">Controller</tspan></text>
|
||||
<rect
|
||||
style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:#b9ffb9;fill-opacity:1;fill-rule:nonzero;stroke:#006400;stroke-width:2.8125;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
|
||||
id="rect4424-3-2-9-7-3-3-5-3"
|
||||
@ -1171,7 +1172,7 @@
|
||||
x="318.59131"
|
||||
y="552.08752"
|
||||
style="font-size:25.00000191px;line-height:1.25;font-family:sans-serif;text-align:center;text-anchor:middle;stroke-width:1px"
|
||||
id="tspan1287">Slave</tspan></text>
|
||||
id="tspan1287">Target</tspan></text>
|
||||
<path
|
||||
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1.99968767;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 112.49995,677.36223 c 712.50005,0 712.50005,0 712.50005,0"
|
||||
@ -1233,7 +1234,7 @@
|
||||
x="468.59131"
|
||||
y="552.08746"
|
||||
style="font-size:25.00000191px;line-height:1.25;font-family:sans-serif;text-align:center;text-anchor:middle;stroke-width:1px"
|
||||
id="tspan1287-6">Slave</tspan></text>
|
||||
id="tspan1287-6">Target</tspan></text>
|
||||
<rect
|
||||
style="color:#000000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#b9ffb9;fill-opacity:1;fill-rule:nonzero;stroke:#006400;stroke-width:2.8125;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
|
||||
id="rect4424-3-2-9-7-3-3-5-3-1"
|
||||
@ -1258,7 +1259,7 @@
|
||||
x="618.59131"
|
||||
y="552.08746"
|
||||
style="font-size:25.00000191px;line-height:1.25;font-family:sans-serif;text-align:center;text-anchor:middle;stroke-width:1px"
|
||||
id="tspan1287-9">Slave</tspan></text>
|
||||
id="tspan1287-9">Target</tspan></text>
|
||||
<path
|
||||
style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:1.99968743;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;marker-end:url(#DotM)"
|
||||
d="m 150,583.61221 v 93.75"
|
||||
|
||||
|
Before Width: | Height: | Size: 55 KiB After Width: | Height: | Size: 55 KiB |
@ -3,29 +3,27 @@ Introduction to I2C and SMBus
|
||||
=============================
|
||||
|
||||
I²C (pronounce: I squared C and written I2C in the kernel documentation) is
|
||||
a protocol developed by Philips. It is a slow two-wire protocol (variable
|
||||
speed, up to 400 kHz), with a high speed extension (3.4 MHz). It provides
|
||||
a protocol developed by Philips. It is a two-wire protocol with variable
|
||||
speed (typically up to 400 kHz, high speed modes up to 5 MHz). It provides
|
||||
an inexpensive bus for connecting many types of devices with infrequent or
|
||||
low bandwidth communications needs. I2C is widely used with embedded
|
||||
systems. Some systems use variants that don't meet branding requirements,
|
||||
low bandwidth communications needs. I2C is widely used with embedded
|
||||
systems. Some systems use variants that don't meet branding requirements,
|
||||
and so are not advertised as being I2C but come under different names,
|
||||
e.g. TWI (Two Wire Interface), IIC.
|
||||
|
||||
The latest official I2C specification is the `"I2C-bus specification and user
|
||||
manual" (UM10204) <https://www.nxp.com/webapp/Download?colCode=UM10204>`_
|
||||
published by NXP Semiconductors. However, you need to log-in to the site to
|
||||
access the PDF. An older version of the specification (revision 6) is archived
|
||||
`here <https://web.archive.org/web/20210813122132/https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_.
|
||||
The latest official I2C specification is the `"I²C-bus specification and user
|
||||
manual" (UM10204) <https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_
|
||||
published by NXP Semiconductors, version 7 as of this writing.
|
||||
|
||||
SMBus (System Management Bus) is based on the I2C protocol, and is mostly
|
||||
a subset of I2C protocols and signaling. Many I2C devices will work on an
|
||||
a subset of I2C protocols and signaling. Many I2C devices will work on an
|
||||
SMBus, but some SMBus protocols add semantics beyond what is required to
|
||||
achieve I2C branding. Modern PC mainboards rely on SMBus. The most common
|
||||
achieve I2C branding. Modern PC mainboards rely on SMBus. The most common
|
||||
devices connected through SMBus are RAM modules configured using I2C EEPROMs,
|
||||
and hardware monitoring chips.
|
||||
|
||||
Because the SMBus is mostly a subset of the generalized I2C bus, we can
|
||||
use its protocols on many I2C systems. However, there are systems that don't
|
||||
use its protocols on many I2C systems. However, there are systems that don't
|
||||
meet both SMBus and I2C electrical constraints; and others which can't
|
||||
implement all the common SMBus protocol semantics or messages.
|
||||
|
||||
@ -33,29 +31,52 @@ implement all the common SMBus protocol semantics or messages.
|
||||
Terminology
|
||||
===========
|
||||
|
||||
Using the terminology from the official documentation, the I2C bus connects
|
||||
one or more *master* chips and one or more *slave* chips.
|
||||
The I2C bus connects one or more controller chips and one or more target chips.
|
||||
|
||||
.. kernel-figure:: i2c_bus.svg
|
||||
:alt: Simple I2C bus with one master and 3 slaves
|
||||
:alt: Simple I2C bus with one controller and 3 targets
|
||||
|
||||
Simple I2C bus
|
||||
|
||||
A **master** chip is a node that starts communications with slaves. In the
|
||||
Linux kernel implementation it is called an **adapter** or bus. Adapter
|
||||
drivers are in the ``drivers/i2c/busses/`` subdirectory.
|
||||
A **controller** chip is a node that starts communications with targets. In the
|
||||
Linux kernel implementation it is also called an "adapter" or "bus". Controller
|
||||
drivers are usually in the ``drivers/i2c/busses/`` subdirectory.
|
||||
|
||||
An **algorithm** contains general code that can be used to implement a
|
||||
whole class of I2C adapters. Each specific adapter driver either depends on
|
||||
an algorithm driver in the ``drivers/i2c/algos/`` subdirectory, or includes
|
||||
its own implementation.
|
||||
An **algorithm** contains general code that can be used to implement a whole
|
||||
class of I2C controllers. Each specific controller driver either depends on an
|
||||
algorithm driver in the ``drivers/i2c/algos/`` subdirectory, or includes its
|
||||
own implementation.
|
||||
|
||||
A **slave** chip is a node that responds to communications when addressed
|
||||
by the master. In Linux it is called a **client**. Client drivers are kept
|
||||
in a directory specific to the feature they provide, for example
|
||||
``drivers/media/gpio/`` for GPIO expanders and ``drivers/media/i2c/`` for
|
||||
A **target** chip is a node that responds to communications when addressed by a
|
||||
controller. In the Linux kernel implementation it is also called a "client".
|
||||
While targets are usually separate external chips, Linux can also act as a
|
||||
target (needs hardware support) and respond to another controller on the bus.
|
||||
This is then called a **local target**. In contrast, an external chip is called
|
||||
a **remote target**.
|
||||
|
||||
Target drivers are kept in a directory specific to the feature they provide,
|
||||
for example ``drivers/gpio/`` for GPIO expanders and ``drivers/media/i2c/`` for
|
||||
video-related chips.
|
||||
|
||||
For the example configuration in figure, you will need a driver for your
|
||||
I2C adapter, and drivers for your I2C devices (usually one driver for each
|
||||
device).
|
||||
For the example configuration in the figure above, you will need one driver for
|
||||
the I2C controller, and drivers for your I2C targets. Usually one driver for
|
||||
each target.
|
||||
|
||||
Synonyms
|
||||
--------
|
||||
|
||||
As mentioned above, the Linux I2C implementation historically uses the terms
|
||||
"adapter" for controller and "client" for target. A number of data structures
|
||||
have these synonyms in their name. So, when discussing implementation details,
|
||||
you should be aware of these terms as well. The official wording is preferred,
|
||||
though.
|
||||
|
||||
Outdated terminology
|
||||
--------------------
|
||||
|
||||
In earlier I2C specifications, controller was named "master" and target was
|
||||
named "slave". These terms have been obsoleted with v7 of the specification and
|
||||
their use is also discouraged by the Linux Kernel Code of Conduct. You may
|
||||
still find them in references to documentation which has not been updated. The
|
||||
general attitude, however, is to use the inclusive terms: controller and
|
||||
target. Work to replace the old terminology in the Linux Kernel is on-going.
|
||||
|
||||
@ -128,7 +128,7 @@ executed to make module versioning work.
|
||||
|
||||
modules_install
|
||||
Install the external module(s). The default location is
|
||||
/lib/modules/<kernel_release>/extra/, but a prefix may
|
||||
/lib/modules/<kernel_release>/updates/, but a prefix may
|
||||
be added with INSTALL_MOD_PATH (discussed in section 5).
|
||||
|
||||
clean
|
||||
@ -417,7 +417,7 @@ directory:
|
||||
|
||||
And external modules are installed in:
|
||||
|
||||
/lib/modules/$(KERNELRELEASE)/extra/
|
||||
/lib/modules/$(KERNELRELEASE)/updates/
|
||||
|
||||
5.1 INSTALL_MOD_PATH
|
||||
--------------------
|
||||
@ -438,10 +438,10 @@ And external modules are installed in:
|
||||
-------------------
|
||||
|
||||
External modules are by default installed to a directory under
|
||||
/lib/modules/$(KERNELRELEASE)/extra/, but you may wish to
|
||||
/lib/modules/$(KERNELRELEASE)/updates/, but you may wish to
|
||||
locate modules for a specific functionality in a separate
|
||||
directory. For this purpose, use INSTALL_MOD_DIR to specify an
|
||||
alternative name to "extra."::
|
||||
alternative name to "updates."::
|
||||
|
||||
$ make INSTALL_MOD_DIR=gandalf -C $KDIR \
|
||||
M=$PWD modules_install
|
||||
|
||||
@ -1603,7 +1603,7 @@ operations:
|
||||
attributes:
|
||||
- header
|
||||
reply:
|
||||
attributes: &pse
|
||||
attributes:
|
||||
- header
|
||||
- podl-pse-admin-state
|
||||
- podl-pse-admin-control
|
||||
@ -1620,7 +1620,10 @@ operations:
|
||||
|
||||
do:
|
||||
request:
|
||||
attributes: *pse
|
||||
attributes:
|
||||
- header
|
||||
- podl-pse-admin-control
|
||||
- c33-pse-admin-control
|
||||
-
|
||||
name: rss-get
|
||||
doc: Get RSS params.
|
||||
|
||||
@ -123,8 +123,6 @@ operations:
|
||||
doc: dump pending nfsd rpc
|
||||
attribute-set: rpc-status
|
||||
dump:
|
||||
pre: nfsd-nl-rpc-status-get-start
|
||||
post: nfsd-nl-rpc-status-get-done
|
||||
reply:
|
||||
attributes:
|
||||
- xid
|
||||
|
||||
@ -32,6 +32,7 @@ Security-related interfaces
|
||||
seccomp_filter
|
||||
landlock
|
||||
lsm
|
||||
mfd_noexec
|
||||
spec_ctrl
|
||||
tee
|
||||
|
||||
|
||||
86
Documentation/userspace-api/mfd_noexec.rst
Normal file
86
Documentation/userspace-api/mfd_noexec.rst
Normal file
@ -0,0 +1,86 @@
|
||||
.. SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
==================================
|
||||
Introduction of non-executable mfd
|
||||
==================================
|
||||
:Author:
|
||||
Daniel Verkamp <dverkamp@chromium.org>
|
||||
Jeff Xu <jeffxu@chromium.org>
|
||||
|
||||
:Contributor:
|
||||
Aleksa Sarai <cyphar@cyphar.com>
|
||||
|
||||
Since Linux introduced the memfd feature, memfds have always had their
|
||||
execute bit set, and the memfd_create() syscall doesn't allow setting
|
||||
it differently.
|
||||
|
||||
However, in a secure-by-default system, such as ChromeOS, (where all
|
||||
executables should come from the rootfs, which is protected by verified
|
||||
boot), this executable nature of memfd opens a door for NoExec bypass
|
||||
and enables “confused deputy attack”. E.g, in VRP bug [1]: cros_vm
|
||||
process created a memfd to share the content with an external process,
|
||||
however the memfd is overwritten and used for executing arbitrary code
|
||||
and root escalation. [2] lists more VRP of this kind.
|
||||
|
||||
On the other hand, executable memfd has its legit use: runc uses memfd’s
|
||||
seal and executable feature to copy the contents of the binary then
|
||||
execute them. For such a system, we need a solution to differentiate runc's
|
||||
use of executable memfds and an attacker's [3].
|
||||
|
||||
To address those above:
|
||||
- Let memfd_create() set X bit at creation time.
|
||||
- Let memfd be sealed for modifying X bit when NX is set.
|
||||
- Add a new pid namespace sysctl: vm.memfd_noexec to help applications in
|
||||
migrating and enforcing non-executable MFD.
|
||||
|
||||
User API
|
||||
========
|
||||
``int memfd_create(const char *name, unsigned int flags)``
|
||||
|
||||
``MFD_NOEXEC_SEAL``
|
||||
When MFD_NOEXEC_SEAL bit is set in the ``flags``, memfd is created
|
||||
with NX. F_SEAL_EXEC is set and the memfd can't be modified to
|
||||
add X later. MFD_ALLOW_SEALING is also implied.
|
||||
This is the most common case for the application to use memfd.
|
||||
|
||||
``MFD_EXEC``
|
||||
When MFD_EXEC bit is set in the ``flags``, memfd is created with X.
|
||||
|
||||
Note:
|
||||
``MFD_NOEXEC_SEAL`` implies ``MFD_ALLOW_SEALING``. In case that
|
||||
an app doesn't want sealing, it can add F_SEAL_SEAL after creation.
|
||||
|
||||
|
||||
Sysctl:
|
||||
========
|
||||
``pid namespaced sysctl vm.memfd_noexec``
|
||||
|
||||
The new pid namespaced sysctl vm.memfd_noexec has 3 values:
|
||||
|
||||
- 0: MEMFD_NOEXEC_SCOPE_EXEC
|
||||
memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL acts like
|
||||
MFD_EXEC was set.
|
||||
|
||||
- 1: MEMFD_NOEXEC_SCOPE_NOEXEC_SEAL
|
||||
memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL acts like
|
||||
MFD_NOEXEC_SEAL was set.
|
||||
|
||||
- 2: MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED
|
||||
memfd_create() without MFD_NOEXEC_SEAL will be rejected.
|
||||
|
||||
The sysctl allows finer control of memfd_create for old software that
|
||||
doesn't set the executable bit; for example, a container with
|
||||
vm.memfd_noexec=1 means the old software will create non-executable memfd
|
||||
by default while new software can create executable memfd by setting
|
||||
MFD_EXEC.
|
||||
|
||||
The value of vm.memfd_noexec is passed to child namespace at creation
|
||||
time. In addition, the setting is hierarchical, i.e. during memfd_create,
|
||||
we will search from current ns to root ns and use the most restrictive
|
||||
setting.
|
||||
|
||||
[1] https://crbug.com/1305267
|
||||
|
||||
[2] https://bugs.chromium.org/p/chromium/issues/list?q=type%3Dbug-security%20memfd%20escalation&can=1
|
||||
|
||||
[3] https://lwn.net/Articles/781013/
|
||||
@ -62,12 +62,21 @@ shared page with scale and offset values into user space. User
|
||||
space code performs the same algorithm of reading the TSC and
|
||||
applying the scale and offset to get the constant 10 MHz clock.
|
||||
|
||||
Linux clockevents are based on Hyper-V synthetic timer 0. While
|
||||
Hyper-V offers 4 synthetic timers for each CPU, Linux only uses
|
||||
timer 0. Interrupts from stimer0 are recorded on the "HVS" line in
|
||||
/proc/interrupts. Clockevents based on the virtualized PIT and
|
||||
local APIC timer also work, but the Hyper-V synthetic timer is
|
||||
preferred.
|
||||
Linux clockevents are based on Hyper-V synthetic timer 0 (stimer0).
|
||||
While Hyper-V offers 4 synthetic timers for each CPU, Linux only uses
|
||||
timer 0. In older versions of Hyper-V, an interrupt from stimer0
|
||||
results in a VMBus control message that is demultiplexed by
|
||||
vmbus_isr() as described in the Documentation/virt/hyperv/vmbus.rst
|
||||
documentation. In newer versions of Hyper-V, stimer0 interrupts can
|
||||
be mapped to an architectural interrupt, which is referred to as
|
||||
"Direct Mode". Linux prefers to use Direct Mode when available. Since
|
||||
x86/x64 doesn't support per-CPU interrupts, Direct Mode statically
|
||||
allocates an x86 interrupt vector (HYPERV_STIMER0_VECTOR) across all CPUs
|
||||
and explicitly codes it to call the stimer0 interrupt handler. Hence
|
||||
interrupts from stimer0 are recorded on the "HVS" line in /proc/interrupts
|
||||
rather than being associated with a Linux IRQ. Clockevents based on the
|
||||
virtualized PIT and local APIC timer also work, but Hyper-V stimer0
|
||||
is preferred.
|
||||
|
||||
The driver for the Hyper-V synthetic system clock and timers is
|
||||
drivers/clocksource/hyperv_timer.c.
|
||||
|
||||
@ -40,7 +40,7 @@ Linux guests communicate with Hyper-V in four different ways:
|
||||
arm64, these synthetic registers must be accessed using explicit
|
||||
hypercalls.
|
||||
|
||||
* VMbus: VMbus is a higher-level software construct that is built on
|
||||
* VMBus: VMBus is a higher-level software construct that is built on
|
||||
the other 3 mechanisms. It is a message passing interface between
|
||||
the Hyper-V host and the Linux guest. It uses memory that is shared
|
||||
between Hyper-V and the guest, along with various signaling
|
||||
@ -54,8 +54,8 @@ x86/x64 architecture only.
|
||||
|
||||
.. _Hyper-V Top Level Functional Spec (TLFS): https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/tlfs/tlfs
|
||||
|
||||
VMbus is not documented. This documentation provides a high-level
|
||||
overview of VMbus and how it works, but the details can be discerned
|
||||
VMBus is not documented. This documentation provides a high-level
|
||||
overview of VMBus and how it works, but the details can be discerned
|
||||
only from the code.
|
||||
|
||||
Sharing Memory
|
||||
@ -74,7 +74,7 @@ follows:
|
||||
physical address space. How Hyper-V is told about the GPA or list
|
||||
of GPAs varies. In some cases, a single GPA is written to a
|
||||
synthetic register. In other cases, a GPA or list of GPAs is sent
|
||||
in a VMbus message.
|
||||
in a VMBus message.
|
||||
|
||||
* Hyper-V translates the GPAs into "real" physical memory addresses,
|
||||
and creates a virtual mapping that it can use to access the memory.
|
||||
@ -133,9 +133,9 @@ only the CPUs actually present in the VM, so Linux does not report
|
||||
any hot-add CPUs.
|
||||
|
||||
A Linux guest CPU may be taken offline using the normal Linux
|
||||
mechanisms, provided no VMbus channel interrupts are assigned to
|
||||
the CPU. See the section on VMbus Interrupts for more details
|
||||
on how VMbus channel interrupts can be re-assigned to permit
|
||||
mechanisms, provided no VMBus channel interrupts are assigned to
|
||||
the CPU. See the section on VMBus Interrupts for more details
|
||||
on how VMBus channel interrupts can be re-assigned to permit
|
||||
taking a CPU offline.
|
||||
|
||||
32-bit and 64-bit
|
||||
@ -169,14 +169,14 @@ and functionality. Hyper-V indicates feature/function availability
|
||||
via flags in synthetic MSRs that Hyper-V provides to the guest,
|
||||
and the guest code tests these flags.
|
||||
|
||||
VMbus has its own protocol version that is negotiated during the
|
||||
initial VMbus connection from the guest to Hyper-V. This version
|
||||
VMBus has its own protocol version that is negotiated during the
|
||||
initial VMBus connection from the guest to Hyper-V. This version
|
||||
number is also output to dmesg during boot. This version number
|
||||
is checked in a few places in the code to determine if specific
|
||||
functionality is present.
|
||||
|
||||
Furthermore, each synthetic device on VMbus also has a protocol
|
||||
version that is separate from the VMbus protocol version. Device
|
||||
Furthermore, each synthetic device on VMBus also has a protocol
|
||||
version that is separate from the VMBus protocol version. Device
|
||||
drivers for these synthetic devices typically negotiate the device
|
||||
protocol version, and may test that protocol version to determine
|
||||
if specific device functionality is present.
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
.. SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
VMbus
|
||||
VMBus
|
||||
=====
|
||||
VMbus is a software construct provided by Hyper-V to guest VMs. It
|
||||
VMBus is a software construct provided by Hyper-V to guest VMs. It
|
||||
consists of a control path and common facilities used by synthetic
|
||||
devices that Hyper-V presents to guest VMs. The control path is
|
||||
used to offer synthetic devices to the guest VM and, in some cases,
|
||||
@ -12,9 +12,9 @@ and the synthetic device implementation that is part of Hyper-V, and
|
||||
signaling primitives to allow Hyper-V and the guest to interrupt
|
||||
each other.
|
||||
|
||||
VMbus is modeled in Linux as a bus, with the expected /sys/bus/vmbus
|
||||
entry in a running Linux guest. The VMbus driver (drivers/hv/vmbus_drv.c)
|
||||
establishes the VMbus control path with the Hyper-V host, then
|
||||
VMBus is modeled in Linux as a bus, with the expected /sys/bus/vmbus
|
||||
entry in a running Linux guest. The VMBus driver (drivers/hv/vmbus_drv.c)
|
||||
establishes the VMBus control path with the Hyper-V host, then
|
||||
registers itself as a Linux bus driver. It implements the standard
|
||||
bus functions for adding and removing devices to/from the bus.
|
||||
|
||||
@ -49,9 +49,9 @@ synthetic NIC is referred to as "netvsc" and the Linux driver for
|
||||
the synthetic SCSI controller is "storvsc". These drivers contain
|
||||
functions with names like "storvsc_connect_to_vsp".
|
||||
|
||||
VMbus channels
|
||||
VMBus channels
|
||||
--------------
|
||||
An instance of a synthetic device uses VMbus channels to communicate
|
||||
An instance of a synthetic device uses VMBus channels to communicate
|
||||
between the VSP and the VSC. Channels are bi-directional and used
|
||||
for passing messages. Most synthetic devices use a single channel,
|
||||
but the synthetic SCSI controller and synthetic NIC may use multiple
|
||||
@ -73,7 +73,7 @@ write indices and some control flags, followed by the memory for the
|
||||
actual ring. The size of the ring is determined by the VSC in the
|
||||
guest and is specific to each synthetic device. The list of GPAs
|
||||
making up the ring is communicated to the Hyper-V host over the
|
||||
VMbus control path as a GPA Descriptor List (GPADL). See function
|
||||
VMBus control path as a GPA Descriptor List (GPADL). See function
|
||||
vmbus_establish_gpadl().
|
||||
|
||||
Each ring buffer is mapped into contiguous Linux kernel virtual
|
||||
@ -102,10 +102,10 @@ resources. For Windows Server 2019 and later, this limit is
|
||||
approximately 1280 Mbytes. For versions prior to Windows Server
|
||||
2019, the limit is approximately 384 Mbytes.
|
||||
|
||||
VMbus messages
|
||||
--------------
|
||||
All VMbus messages have a standard header that includes the message
|
||||
length, the offset of the message payload, some flags, and a
|
||||
VMBus channel messages
|
||||
----------------------
|
||||
All messages sent in a VMBus channel have a standard header that includes
|
||||
the message length, the offset of the message payload, some flags, and a
|
||||
transactionID. The portion of the message after the header is
|
||||
unique to each VSP/VSC pair.
|
||||
|
||||
@ -137,7 +137,7 @@ control message contains a list of GPAs that describe the data
|
||||
buffer. For example, the storvsc driver uses this approach to
|
||||
specify the data buffers to/from which disk I/O is done.
|
||||
|
||||
Three functions exist to send VMbus messages:
|
||||
Three functions exist to send VMBus channel messages:
|
||||
|
||||
1. vmbus_sendpacket(): Control-only messages and messages with
|
||||
embedded data -- no GPAs
|
||||
@ -154,20 +154,51 @@ Historically, Linux guests have trusted Hyper-V to send well-formed
|
||||
and valid messages, and Linux drivers for synthetic devices did not
|
||||
fully validate messages. With the introduction of processor
|
||||
technologies that fully encrypt guest memory and that allow the
|
||||
guest to not trust the hypervisor (AMD SNP-SEV, Intel TDX), trusting
|
||||
guest to not trust the hypervisor (AMD SEV-SNP, Intel TDX), trusting
|
||||
the Hyper-V host is no longer a valid assumption. The drivers for
|
||||
VMbus synthetic devices are being updated to fully validate any
|
||||
VMBus synthetic devices are being updated to fully validate any
|
||||
values read from memory that is shared with Hyper-V, which includes
|
||||
messages from VMbus devices. To facilitate such validation,
|
||||
messages from VMBus devices. To facilitate such validation,
|
||||
messages read by the guest from the "in" ring buffer are copied to a
|
||||
temporary buffer that is not shared with Hyper-V. Validation is
|
||||
performed in this temporary buffer without the risk of Hyper-V
|
||||
maliciously modifying the message after it is validated but before
|
||||
it is used.
|
||||
|
||||
VMbus interrupts
|
||||
Synthetic Interrupt Controller (synic)
|
||||
--------------------------------------
|
||||
Hyper-V provides each guest CPU with a synthetic interrupt controller
|
||||
that is used by VMBus for host-guest communication. While each synic
|
||||
defines 16 synthetic interrupts (SINT), Linux uses only one of the 16
|
||||
(VMBUS_MESSAGE_SINT). All interrupts related to communication between
|
||||
the Hyper-V host and a guest CPU use that SINT.
|
||||
|
||||
The SINT is mapped to a single per-CPU architectural interrupt (i.e,
|
||||
an 8-bit x86/x64 interrupt vector, or an arm64 PPI INTID). Because
|
||||
each CPU in the guest has a synic and may receive VMBus interrupts,
|
||||
they are best modeled in Linux as per-CPU interrupts. This model works
|
||||
well on arm64 where a single per-CPU Linux IRQ is allocated for
|
||||
VMBUS_MESSAGE_SINT. This IRQ appears in /proc/interrupts as an IRQ labelled
|
||||
"Hyper-V VMbus". Since x86/x64 lacks support for per-CPU IRQs, an x86
|
||||
interrupt vector is statically allocated (HYPERVISOR_CALLBACK_VECTOR)
|
||||
across all CPUs and explicitly coded to call vmbus_isr(). In this case,
|
||||
there's no Linux IRQ, and the interrupts are visible in aggregate in
|
||||
/proc/interrupts on the "HYP" line.
|
||||
|
||||
The synic provides the means to demultiplex the architectural interrupt into
|
||||
one or more logical interrupts and route the logical interrupt to the proper
|
||||
VMBus handler in Linux. This demultiplexing is done by vmbus_isr() and
|
||||
related functions that access synic data structures.
|
||||
|
||||
The synic is not modeled in Linux as an irq chip or irq domain,
|
||||
and the demultiplexed logical interrupts are not Linux IRQs. As such,
|
||||
they don't appear in /proc/interrupts or /proc/irq. The CPU
|
||||
affinity for one of these logical interrupts is controlled via an
|
||||
entry under /sys/bus/vmbus as described below.
|
||||
|
||||
VMBus interrupts
|
||||
----------------
|
||||
VMbus provides a mechanism for the guest to interrupt the host when
|
||||
VMBus provides a mechanism for the guest to interrupt the host when
|
||||
the guest has queued new messages in a ring buffer. The host
|
||||
expects that the guest will send an interrupt only when an "out"
|
||||
ring buffer transitions from empty to non-empty. If the guest sends
|
||||
@ -176,63 +207,55 @@ unnecessary. If a guest sends an excessive number of unnecessary
|
||||
interrupts, the host may throttle that guest by suspending its
|
||||
execution for a few seconds to prevent a denial-of-service attack.
|
||||
|
||||
Similarly, the host will interrupt the guest when it sends a new
|
||||
message on the VMbus control path, or when a VMbus channel "in" ring
|
||||
buffer transitions from empty to non-empty. Each CPU in the guest
|
||||
may receive VMbus interrupts, so they are best modeled as per-CPU
|
||||
interrupts in Linux. This model works well on arm64 where a single
|
||||
per-CPU IRQ is allocated for VMbus. Since x86/x64 lacks support for
|
||||
per-CPU IRQs, an x86 interrupt vector is statically allocated (see
|
||||
HYPERVISOR_CALLBACK_VECTOR) across all CPUs and explicitly coded to
|
||||
call the VMbus interrupt service routine. These interrupts are
|
||||
visible in /proc/interrupts on the "HYP" line.
|
||||
Similarly, the host will interrupt the guest via the synic when
|
||||
it sends a new message on the VMBus control path, or when a VMBus
|
||||
channel "in" ring buffer transitions from empty to non-empty due to
|
||||
the host inserting a new VMBus channel message. The control message stream
|
||||
and each VMBus channel "in" ring buffer are separate logical interrupts
|
||||
that are demultiplexed by vmbus_isr(). It demultiplexes by first checking
|
||||
for channel interrupts by calling vmbus_chan_sched(), which looks at a synic
|
||||
bitmap to determine which channels have pending interrupts on this CPU.
|
||||
If multiple channels have pending interrupts for this CPU, they are
|
||||
processed sequentially. When all channel interrupts have been processed,
|
||||
vmbus_isr() checks for and processes any messages received on the VMBus
|
||||
control path.
|
||||
|
||||
The guest CPU that a VMbus channel will interrupt is selected by the
|
||||
The guest CPU that a VMBus channel will interrupt is selected by the
|
||||
guest when the channel is created, and the host is informed of that
|
||||
selection. VMbus devices are broadly grouped into two categories:
|
||||
selection. VMBus devices are broadly grouped into two categories:
|
||||
|
||||
1. "Slow" devices that need only one VMbus channel. The devices
|
||||
1. "Slow" devices that need only one VMBus channel. The devices
|
||||
(such as keyboard, mouse, heartbeat, and timesync) generate
|
||||
relatively few interrupts. Their VMbus channels are all
|
||||
relatively few interrupts. Their VMBus channels are all
|
||||
assigned to interrupt the VMBUS_CONNECT_CPU, which is always
|
||||
CPU 0.
|
||||
|
||||
2. "High speed" devices that may use multiple VMbus channels for
|
||||
2. "High speed" devices that may use multiple VMBus channels for
|
||||
higher parallelism and performance. These devices include the
|
||||
synthetic SCSI controller and synthetic NIC. Their VMbus
|
||||
synthetic SCSI controller and synthetic NIC. Their VMBus
|
||||
channels interrupts are assigned to CPUs that are spread out
|
||||
among the available CPUs in the VM so that interrupts on
|
||||
multiple channels can be processed in parallel.
|
||||
|
||||
The assignment of VMbus channel interrupts to CPUs is done in the
|
||||
The assignment of VMBus channel interrupts to CPUs is done in the
|
||||
function init_vp_index(). This assignment is done outside of the
|
||||
normal Linux interrupt affinity mechanism, so the interrupts are
|
||||
neither "unmanaged" nor "managed" interrupts.
|
||||
|
||||
The CPU that a VMbus channel will interrupt can be seen in
|
||||
The CPU that a VMBus channel will interrupt can be seen in
|
||||
/sys/bus/vmbus/devices/<deviceGUID>/ channels/<channelRelID>/cpu.
|
||||
When running on later versions of Hyper-V, the CPU can be changed
|
||||
by writing a new value to this sysfs entry. Because the interrupt
|
||||
assignment is done outside of the normal Linux affinity mechanism,
|
||||
there are no entries in /proc/irq corresponding to individual
|
||||
VMbus channel interrupts.
|
||||
by writing a new value to this sysfs entry. Because VMBus channel
|
||||
interrupts are not Linux IRQs, there are no entries in /proc/interrupts
|
||||
or /proc/irq corresponding to individual VMBus channel interrupts.
|
||||
|
||||
An online CPU in a Linux guest may not be taken offline if it has
|
||||
VMbus channel interrupts assigned to it. Any such channel
|
||||
VMBus channel interrupts assigned to it. Any such channel
|
||||
interrupts must first be manually reassigned to another CPU as
|
||||
described above. When no channel interrupts are assigned to the
|
||||
CPU, it can be taken offline.
|
||||
|
||||
When a guest CPU receives a VMbus interrupt from the host, the
|
||||
function vmbus_isr() handles the interrupt. It first checks for
|
||||
channel interrupts by calling vmbus_chan_sched(), which looks at a
|
||||
bitmap setup by the host to determine which channels have pending
|
||||
interrupts on this CPU. If multiple channels have pending
|
||||
interrupts for this CPU, they are processed sequentially. When all
|
||||
channel interrupts have been processed, vmbus_isr() checks for and
|
||||
processes any message received on the VMbus control path.
|
||||
|
||||
The VMbus channel interrupt handling code is designed to work
|
||||
The VMBus channel interrupt handling code is designed to work
|
||||
correctly even if an interrupt is received on a CPU other than the
|
||||
CPU assigned to the channel. Specifically, the code does not use
|
||||
CPU-based exclusion for correctness. In normal operation, Hyper-V
|
||||
@ -242,23 +265,23 @@ when Hyper-V will make the transition. The code must work correctly
|
||||
even if there is a time lag before Hyper-V starts interrupting the
|
||||
new CPU. See comments in target_cpu_store().
|
||||
|
||||
VMbus device creation/deletion
|
||||
VMBus device creation/deletion
|
||||
------------------------------
|
||||
Hyper-V and the Linux guest have a separate message-passing path
|
||||
that is used for synthetic device creation and deletion. This
|
||||
path does not use a VMbus channel. See vmbus_post_msg() and
|
||||
path does not use a VMBus channel. See vmbus_post_msg() and
|
||||
vmbus_on_msg_dpc().
|
||||
|
||||
The first step is for the guest to connect to the generic
|
||||
Hyper-V VMbus mechanism. As part of establishing this connection,
|
||||
the guest and Hyper-V agree on a VMbus protocol version they will
|
||||
Hyper-V VMBus mechanism. As part of establishing this connection,
|
||||
the guest and Hyper-V agree on a VMBus protocol version they will
|
||||
use. This negotiation allows newer Linux kernels to run on older
|
||||
Hyper-V versions, and vice versa.
|
||||
|
||||
The guest then tells Hyper-V to "send offers". Hyper-V sends an
|
||||
offer message to the guest for each synthetic device that the VM
|
||||
is configured to have. Each VMbus device type has a fixed GUID
|
||||
known as the "class ID", and each VMbus device instance is also
|
||||
is configured to have. Each VMBus device type has a fixed GUID
|
||||
known as the "class ID", and each VMBus device instance is also
|
||||
identified by a GUID. The offer message from Hyper-V contains
|
||||
both GUIDs to uniquely (within the VM) identify the device.
|
||||
There is one offer message for each device instance, so a VM with
|
||||
@ -275,7 +298,7 @@ type based on the class ID, and invokes the correct driver to set up
|
||||
the device. Driver/device matching is performed using the standard
|
||||
Linux mechanism.
|
||||
|
||||
The device driver probe function opens the primary VMbus channel to
|
||||
The device driver probe function opens the primary VMBus channel to
|
||||
the corresponding VSP. It allocates guest memory for the channel
|
||||
ring buffers and shares the ring buffer with the Hyper-V host by
|
||||
giving the host a list of GPAs for the ring buffer memory. See
|
||||
@ -285,7 +308,7 @@ Once the ring buffer is set up, the device driver and VSP exchange
|
||||
setup messages via the primary channel. These messages may include
|
||||
negotiating the device protocol version to be used between the Linux
|
||||
VSC and the VSP on the Hyper-V host. The setup messages may also
|
||||
include creating additional VMbus channels, which are somewhat
|
||||
include creating additional VMBus channels, which are somewhat
|
||||
mis-named as "sub-channels" since they are functionally
|
||||
equivalent to the primary channel once they are created.
|
||||
|
||||
|
||||
47
MAINTAINERS
47
MAINTAINERS
@ -1054,7 +1054,7 @@ M: Joerg Roedel <joro@8bytes.org>
|
||||
R: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
|
||||
L: iommu@lists.linux.dev
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
|
||||
F: drivers/iommu/amd/
|
||||
F: include/linux/amd-iommu.h
|
||||
|
||||
@ -3990,7 +3990,7 @@ R: Song Liu <song@kernel.org>
|
||||
R: Yonghong Song <yonghong.song@linux.dev>
|
||||
R: John Fastabend <john.fastabend@gmail.com>
|
||||
R: KP Singh <kpsingh@kernel.org>
|
||||
R: Stanislav Fomichev <sdf@google.com>
|
||||
R: Stanislav Fomichev <sdf@fomichev.me>
|
||||
R: Hao Luo <haoluo@google.com>
|
||||
R: Jiri Olsa <jolsa@kernel.org>
|
||||
L: bpf@vger.kernel.org
|
||||
@ -4093,12 +4093,13 @@ F: kernel/bpf/ringbuf.c
|
||||
|
||||
BPF [SECURITY & LSM] (Security Audit and Enforcement using BPF)
|
||||
M: KP Singh <kpsingh@kernel.org>
|
||||
R: Matt Bobrowski <mattbobrowski@google.com>
|
||||
M: Matt Bobrowski <mattbobrowski@google.com>
|
||||
L: bpf@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/bpf/prog_lsm.rst
|
||||
F: include/linux/bpf_lsm.h
|
||||
F: kernel/bpf/bpf_lsm.c
|
||||
F: kernel/trace/bpf_trace.c
|
||||
F: security/bpf/
|
||||
|
||||
BPF [SELFTESTS] (Test Runners & Infrastructure)
|
||||
@ -5305,7 +5306,7 @@ F: drivers/infiniband/hw/usnic/
|
||||
|
||||
CLANG CONTROL FLOW INTEGRITY SUPPORT
|
||||
M: Sami Tolvanen <samitolvanen@google.com>
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Nathan Chancellor <nathan@kernel.org>
|
||||
L: llvm@lists.linux.dev
|
||||
S: Supported
|
||||
@ -8221,7 +8222,7 @@ F: rust/kernel/net/phy.rs
|
||||
|
||||
EXEC & BINFMT API, ELF
|
||||
R: Eric Biederman <ebiederm@xmission.com>
|
||||
R: Kees Cook <keescook@chromium.org>
|
||||
R: Kees Cook <kees@kernel.org>
|
||||
L: linux-mm@kvack.org
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/execve
|
||||
@ -8622,7 +8623,7 @@ S: Maintained
|
||||
F: drivers/net/ethernet/nvidia/*
|
||||
|
||||
FORTIFY_SOURCE
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
|
||||
@ -9112,7 +9113,7 @@ F: include/linux/mfd/gsc.h
|
||||
F: include/linux/platform_data/gsc_hwmon.h
|
||||
|
||||
GCC PLUGINS
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
|
||||
@ -9246,7 +9247,7 @@ S: Maintained
|
||||
F: drivers/input/touchscreen/resistive-adc-touch.c
|
||||
|
||||
GENERIC STRING LIBRARY
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Andy Shevchenko <andy@kernel.org>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
S: Supported
|
||||
@ -11166,7 +11167,7 @@ M: David Woodhouse <dwmw2@infradead.org>
|
||||
M: Lu Baolu <baolu.lu@linux.intel.com>
|
||||
L: iommu@lists.linux.dev
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
|
||||
F: drivers/iommu/intel/
|
||||
|
||||
INTEL IPU3 CSI-2 CIO2 DRIVER
|
||||
@ -11540,7 +11541,7 @@ IOMMU DMA-API LAYER
|
||||
M: Robin Murphy <robin.murphy@arm.com>
|
||||
L: iommu@lists.linux.dev
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
|
||||
F: drivers/iommu/dma-iommu.c
|
||||
F: drivers/iommu/dma-iommu.h
|
||||
F: drivers/iommu/iova.c
|
||||
@ -11552,7 +11553,7 @@ M: Will Deacon <will@kernel.org>
|
||||
R: Robin Murphy <robin.murphy@arm.com>
|
||||
L: iommu@lists.linux.dev
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
|
||||
F: Documentation/devicetree/bindings/iommu/
|
||||
F: Documentation/userspace-api/iommu.rst
|
||||
F: drivers/iommu/
|
||||
@ -11961,7 +11962,7 @@ F: scripts/package/
|
||||
F: usr/
|
||||
|
||||
KERNEL HARDENING (not covered by other areas)
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Gustavo A. R. Silva <gustavoars@kernel.org>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
S: Supported
|
||||
@ -12393,7 +12394,6 @@ F: drivers/video/backlight/ktz8866.c
|
||||
|
||||
KVM PARAVIRT (KVM/paravirt)
|
||||
M: Paolo Bonzini <pbonzini@redhat.com>
|
||||
R: Wanpeng Li <wanpengli@tencent.com>
|
||||
R: Vitaly Kuznetsov <vkuznets@redhat.com>
|
||||
L: kvm@vger.kernel.org
|
||||
S: Supported
|
||||
@ -12489,7 +12489,7 @@ F: drivers/scsi/53c700*
|
||||
|
||||
LEAKING_ADDRESSES
|
||||
M: Tycho Andersen <tycho@tycho.pizza>
|
||||
R: Kees Cook <keescook@chromium.org>
|
||||
R: Kees Cook <kees@kernel.org>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
|
||||
@ -12785,7 +12785,7 @@ F: arch/powerpc/platforms/8xx/
|
||||
F: arch/powerpc/platforms/83xx/
|
||||
|
||||
LINUX KERNEL DUMP TEST MODULE (LKDTM)
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
S: Maintained
|
||||
F: drivers/misc/lkdtm/*
|
||||
F: tools/testing/selftests/lkdtm/*
|
||||
@ -12915,7 +12915,7 @@ Q: http://patchwork.linuxtv.org/project/linux-media/list/
|
||||
F: drivers/media/usb/dvb-usb-v2/lmedm04*
|
||||
|
||||
LOADPIN SECURITY MODULE
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
|
||||
F: Documentation/admin-guide/LSM/LoadPin.rst
|
||||
@ -17543,7 +17543,6 @@ F: include/linux/peci.h
|
||||
PENSANDO ETHERNET DRIVERS
|
||||
M: Shannon Nelson <shannon.nelson@amd.com>
|
||||
M: Brett Creeley <brett.creeley@amd.com>
|
||||
M: drivers@pensando.io
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/networking/device_drivers/ethernet/pensando/ionic.rst
|
||||
@ -18007,7 +18006,7 @@ F: tools/testing/selftests/proc/
|
||||
|
||||
PROC SYSCTL
|
||||
M: Luis Chamberlain <mcgrof@kernel.org>
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
M: Joel Granados <j.granados@samsung.com>
|
||||
L: linux-kernel@vger.kernel.org
|
||||
L: linux-fsdevel@vger.kernel.org
|
||||
@ -18063,7 +18062,7 @@ F: Documentation/devicetree/bindings/net/pse-pd/
|
||||
F: drivers/net/pse-pd/
|
||||
|
||||
PSTORE FILESYSTEM
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Tony Luck <tony.luck@intel.com>
|
||||
R: Guilherme G. Piccoli <gpiccoli@igalia.com>
|
||||
L: linux-hardening@vger.kernel.org
|
||||
@ -18221,6 +18220,7 @@ QCOM AUDIO (ASoC) DRIVERS
|
||||
M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
M: Banajit Goswami <bgoswami@quicinc.com>
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
L: linux-arm-msm@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/devicetree/bindings/soc/qcom/qcom,apr*
|
||||
F: Documentation/devicetree/bindings/sound/qcom,*
|
||||
@ -20077,7 +20077,7 @@ F: drivers/media/cec/platform/seco/seco-cec.c
|
||||
F: drivers/media/cec/platform/seco/seco-cec.h
|
||||
|
||||
SECURE COMPUTING
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Andy Lutomirski <luto@amacapital.net>
|
||||
R: Will Drewry <wad@chromium.org>
|
||||
S: Supported
|
||||
@ -22765,7 +22765,7 @@ M: Jarkko Sakkinen <jarkko@kernel.org>
|
||||
R: Jason Gunthorpe <jgg@ziepe.ca>
|
||||
L: linux-integrity@vger.kernel.org
|
||||
S: Maintained
|
||||
W: https://gitlab.com/jarkkojs/linux-tpmdd-test
|
||||
W: https://codeberg.org/jarkko/linux-tpmdd-test
|
||||
Q: https://patchwork.kernel.org/project/linux-integrity/list/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
|
||||
F: Documentation/devicetree/bindings/tpm/
|
||||
@ -22991,7 +22991,7 @@ F: drivers/block/ublk_drv.c
|
||||
F: include/uapi/linux/ublk_cmd.h
|
||||
|
||||
UBSAN
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
R: Marco Elver <elver@google.com>
|
||||
R: Andrey Konovalov <andreyknvl@gmail.com>
|
||||
R: Andrey Ryabinin <ryabinin.a.a@gmail.com>
|
||||
@ -23993,7 +23993,6 @@ VMALLOC
|
||||
M: Andrew Morton <akpm@linux-foundation.org>
|
||||
R: Uladzislau Rezki <urezki@gmail.com>
|
||||
R: Christoph Hellwig <hch@infradead.org>
|
||||
R: Lorenzo Stoakes <lstoakes@gmail.com>
|
||||
L: linux-mm@kvack.org
|
||||
S: Maintained
|
||||
W: http://www.linux-mm.org
|
||||
@ -24829,7 +24828,7 @@ F: drivers/net/hamradio/yam*
|
||||
F: include/linux/yam.h
|
||||
|
||||
YAMA SECURITY MODULE
|
||||
M: Kees Cook <keescook@chromium.org>
|
||||
M: Kees Cook <kees@kernel.org>
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
|
||||
F: Documentation/admin-guide/LSM/Yama.rst
|
||||
|
||||
2
Makefile
2
Makefile
@ -2,7 +2,7 @@
|
||||
VERSION = 6
|
||||
PATCHLEVEL = 10
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc4
|
||||
EXTRAVERSION = -rc6
|
||||
NAME = Baby Opossum Posse
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
||||
@ -85,7 +85,7 @@
|
||||
};
|
||||
};
|
||||
|
||||
panel {
|
||||
panel_dpi: panel {
|
||||
compatible = "sii,43wvf1g";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_display_power>;
|
||||
|
||||
@ -10,8 +10,6 @@
|
||||
/plugin/;
|
||||
|
||||
&{/} {
|
||||
/delete-node/ panel;
|
||||
|
||||
hdmi: connector-hdmi {
|
||||
compatible = "hdmi-connector";
|
||||
label = "hdmi";
|
||||
@ -82,6 +80,10 @@
|
||||
};
|
||||
};
|
||||
|
||||
&panel_dpi {
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
&tve {
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
@ -14,6 +14,7 @@
|
||||
#include <asm/mach/map.h>
|
||||
#include <asm/mmu_context.h>
|
||||
#include <asm/ptrace.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
#ifdef CONFIG_EFI
|
||||
void efi_init(void);
|
||||
@ -25,6 +26,18 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md, boo
|
||||
#define arch_efi_call_virt_setup() efi_virtmap_load()
|
||||
#define arch_efi_call_virt_teardown() efi_virtmap_unload()
|
||||
|
||||
#ifdef CONFIG_CPU_TTBR0_PAN
|
||||
#undef arch_efi_call_virt
|
||||
#define arch_efi_call_virt(p, f, args...) ({ \
|
||||
unsigned int flags = uaccess_save_and_enable(); \
|
||||
efi_status_t res = _Generic((p)->f(args), \
|
||||
efi_status_t: (p)->f(args), \
|
||||
default: ((p)->f(args), EFI_ABORTED)); \
|
||||
uaccess_restore(flags); \
|
||||
res; \
|
||||
})
|
||||
#endif
|
||||
|
||||
#define ARCH_EFI_IRQ_FLAGS_MASK \
|
||||
(PSR_J_BIT | PSR_E_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT | \
|
||||
PSR_T_BIT | MODE_MASK)
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
#include <dt-bindings/phy/phy-imx8-pcie.h>
|
||||
#include <dt-bindings/pwm/pwm.h>
|
||||
#include "imx8mm.dtsi"
|
||||
#include "imx8mm-overdrive.dtsi"
|
||||
|
||||
/ {
|
||||
chosen {
|
||||
@ -935,7 +936,7 @@
|
||||
/* Verdin GPIO_9_DSI (pulled-up as active-low) */
|
||||
pinctrl_gpio_9_dsi: gpio9dsigrp {
|
||||
fsl,pins =
|
||||
<MX8MM_IOMUXC_NAND_RE_B_GPIO3_IO15 0x146>; /* SODIMM 17 */
|
||||
<MX8MM_IOMUXC_NAND_RE_B_GPIO3_IO15 0x1c6>; /* SODIMM 17 */
|
||||
};
|
||||
|
||||
/* Verdin GPIO_10_DSI (pulled-up as active-low) */
|
||||
|
||||
@ -254,7 +254,7 @@
|
||||
<&clk IMX8MP_CLK_CLKOUT2>,
|
||||
<&clk IMX8MP_AUDIO_PLL2_OUT>;
|
||||
assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
|
||||
assigned-clock-rates = <13000000>, <13000000>, <156000000>;
|
||||
assigned-clock-rates = <13000000>, <13000000>, <208000000>;
|
||||
reset-gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
|
||||
status = "disabled";
|
||||
|
||||
|
||||
@ -219,7 +219,7 @@
|
||||
|
||||
bluetooth {
|
||||
compatible = "brcm,bcm4330-bt";
|
||||
shutdown-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
|
||||
shutdown-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
@ -36,7 +36,7 @@
|
||||
regulator-name = "SD1_SPWR";
|
||||
regulator-min-microvolt = <3000000>;
|
||||
regulator-max-microvolt = <3000000>;
|
||||
gpio = <&lsio_gpio4 19 GPIO_ACTIVE_HIGH>;
|
||||
gpio = <&lsio_gpio4 7 GPIO_ACTIVE_HIGH>;
|
||||
enable-active-high;
|
||||
};
|
||||
|
||||
|
||||
@ -296,7 +296,6 @@
|
||||
vmmc-supply = <®_usdhc2_vmmc>;
|
||||
bus-width = <4>;
|
||||
status = "okay";
|
||||
no-sdio;
|
||||
no-mmc;
|
||||
};
|
||||
|
||||
|
||||
@ -170,6 +170,7 @@
|
||||
#define PTE_CONT (_AT(pteval_t, 1) << 52) /* Contiguous range */
|
||||
#define PTE_PXN (_AT(pteval_t, 1) << 53) /* Privileged XN */
|
||||
#define PTE_UXN (_AT(pteval_t, 1) << 54) /* User XN */
|
||||
#define PTE_SWBITS_MASK _AT(pteval_t, (BIT(63) | GENMASK(58, 55)))
|
||||
|
||||
#define PTE_ADDR_LOW (((_AT(pteval_t, 1) << (50 - PAGE_SHIFT)) - 1) << PAGE_SHIFT)
|
||||
#ifdef CONFIG_ARM64_PA_BITS_52
|
||||
|
||||
@ -840,7 +840,7 @@ __SYSCALL(__NR_pselect6_time64, compat_sys_pselect6_time64)
|
||||
#define __NR_ppoll_time64 414
|
||||
__SYSCALL(__NR_ppoll_time64, compat_sys_ppoll_time64)
|
||||
#define __NR_io_pgetevents_time64 416
|
||||
__SYSCALL(__NR_io_pgetevents_time64, sys_io_pgetevents)
|
||||
__SYSCALL(__NR_io_pgetevents_time64, compat_sys_io_pgetevents_time64)
|
||||
#define __NR_recvmmsg_time64 417
|
||||
__SYSCALL(__NR_recvmmsg_time64, compat_sys_recvmmsg_time64)
|
||||
#define __NR_mq_timedsend_time64 418
|
||||
|
||||
@ -9,6 +9,7 @@
|
||||
|
||||
#include <linux/efi.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kmemleak.h>
|
||||
#include <linux/screen_info.h>
|
||||
#include <linux/vmalloc.h>
|
||||
|
||||
@ -213,6 +214,7 @@ l: if (!p) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
kmemleak_not_leak(p);
|
||||
efi_rt_stack_top = p + THREAD_SIZE;
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -173,7 +173,7 @@ static void __init remap_idmap_for_lpa2(void)
|
||||
* Don't bother with the FDT, we no longer need it after this.
|
||||
*/
|
||||
memset(init_idmap_pg_dir, 0,
|
||||
(u64)init_idmap_pg_dir - (u64)init_idmap_pg_end);
|
||||
(u64)init_idmap_pg_end - (u64)init_idmap_pg_dir);
|
||||
|
||||
create_init_idmap(init_idmap_pg_dir, mask);
|
||||
dsb(ishst);
|
||||
|
||||
@ -53,17 +53,15 @@ static void invoke_syscall(struct pt_regs *regs, unsigned int scno,
|
||||
syscall_set_return_value(current, regs, 0, ret);
|
||||
|
||||
/*
|
||||
* Ultimately, this value will get limited by KSTACK_OFFSET_MAX(),
|
||||
* but not enough for arm64 stack utilization comfort. To keep
|
||||
* reasonable stack head room, reduce the maximum offset to 9 bits.
|
||||
* This value will get limited by KSTACK_OFFSET_MAX(), which is 10
|
||||
* bits. The actual entropy will be further reduced by the compiler
|
||||
* when applying stack alignment constraints: the AAPCS mandates a
|
||||
* 16-byte aligned SP at function boundaries, which will remove the
|
||||
* 4 low bits from any entropy chosen here.
|
||||
*
|
||||
* The actual entropy will be further reduced by the compiler when
|
||||
* applying stack alignment constraints: the AAPCS mandates a
|
||||
* 16-byte (i.e. 4-bit) aligned SP at function boundaries.
|
||||
*
|
||||
* The resulting 5 bits of entropy is seen in SP[8:4].
|
||||
* The resulting 6 bits of entropy is seen in SP[9:4].
|
||||
*/
|
||||
choose_random_kstack_offset(get_random_u16() & 0x1FF);
|
||||
choose_random_kstack_offset(get_random_u16());
|
||||
}
|
||||
|
||||
static inline bool has_syscall_work(unsigned long flags)
|
||||
|
||||
@ -177,6 +177,14 @@ static void ffa_retrieve_req(struct arm_smccc_res *res, u32 len)
|
||||
res);
|
||||
}
|
||||
|
||||
static void ffa_rx_release(struct arm_smccc_res *res)
|
||||
{
|
||||
arm_smccc_1_1_smc(FFA_RX_RELEASE,
|
||||
0, 0,
|
||||
0, 0, 0, 0, 0,
|
||||
res);
|
||||
}
|
||||
|
||||
static void do_ffa_rxtx_map(struct arm_smccc_res *res,
|
||||
struct kvm_cpu_context *ctxt)
|
||||
{
|
||||
@ -543,16 +551,19 @@ static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
|
||||
if (WARN_ON(offset > len ||
|
||||
fraglen > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE)) {
|
||||
ret = FFA_RET_ABORTED;
|
||||
ffa_rx_release(res);
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
if (len > ffa_desc_buf.len) {
|
||||
ret = FFA_RET_NO_MEMORY;
|
||||
ffa_rx_release(res);
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
buf = ffa_desc_buf.buf;
|
||||
memcpy(buf, hyp_buffers.rx, fraglen);
|
||||
ffa_rx_release(res);
|
||||
|
||||
for (fragoff = fraglen; fragoff < len; fragoff += fraglen) {
|
||||
ffa_mem_frag_rx(res, handle_lo, handle_hi, fragoff);
|
||||
@ -563,6 +574,7 @@ static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
|
||||
|
||||
fraglen = res->a3;
|
||||
memcpy((void *)buf + fragoff, hyp_buffers.rx, fraglen);
|
||||
ffa_rx_release(res);
|
||||
}
|
||||
|
||||
ffa_mem_reclaim(res, handle_lo, handle_hi, flags);
|
||||
|
||||
@ -391,7 +391,7 @@ static void kvm_vgic_dist_destroy(struct kvm *kvm)
|
||||
|
||||
if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
|
||||
list_for_each_entry_safe(rdreg, next, &dist->rd_regions, list)
|
||||
vgic_v3_free_redist_region(rdreg);
|
||||
vgic_v3_free_redist_region(kvm, rdreg);
|
||||
INIT_LIST_HEAD(&dist->rd_regions);
|
||||
} else {
|
||||
dist->vgic_cpu_base = VGIC_ADDR_UNDEF;
|
||||
|
||||
@ -919,8 +919,19 @@ free:
|
||||
return ret;
|
||||
}
|
||||
|
||||
void vgic_v3_free_redist_region(struct vgic_redist_region *rdreg)
|
||||
void vgic_v3_free_redist_region(struct kvm *kvm, struct vgic_redist_region *rdreg)
|
||||
{
|
||||
struct kvm_vcpu *vcpu;
|
||||
unsigned long c;
|
||||
|
||||
lockdep_assert_held(&kvm->arch.config_lock);
|
||||
|
||||
/* Garbage collect the region */
|
||||
kvm_for_each_vcpu(c, vcpu, kvm) {
|
||||
if (vcpu->arch.vgic_cpu.rdreg == rdreg)
|
||||
vcpu->arch.vgic_cpu.rdreg = NULL;
|
||||
}
|
||||
|
||||
list_del(&rdreg->list);
|
||||
kfree(rdreg);
|
||||
}
|
||||
@ -945,7 +956,7 @@ int vgic_v3_set_redist_base(struct kvm *kvm, u32 index, u64 addr, u32 count)
|
||||
|
||||
mutex_lock(&kvm->arch.config_lock);
|
||||
rdreg = vgic_v3_rdist_region_from_index(kvm, index);
|
||||
vgic_v3_free_redist_region(rdreg);
|
||||
vgic_v3_free_redist_region(kvm, rdreg);
|
||||
mutex_unlock(&kvm->arch.config_lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -316,7 +316,7 @@ vgic_v3_rd_region_size(struct kvm *kvm, struct vgic_redist_region *rdreg)
|
||||
|
||||
struct vgic_redist_region *vgic_v3_rdist_region_from_index(struct kvm *kvm,
|
||||
u32 index);
|
||||
void vgic_v3_free_redist_region(struct vgic_redist_region *rdreg);
|
||||
void vgic_v3_free_redist_region(struct kvm *kvm, struct vgic_redist_region *rdreg);
|
||||
|
||||
bool vgic_v3_rdist_overlap(struct kvm *kvm, gpa_t base, size_t size);
|
||||
|
||||
|
||||
@ -124,7 +124,8 @@ bool pgattr_change_is_safe(u64 old, u64 new)
|
||||
* The following mapping attributes may be updated in live
|
||||
* kernel mappings without the need for break-before-make.
|
||||
*/
|
||||
pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE | PTE_NG;
|
||||
pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE | PTE_NG |
|
||||
PTE_SWBITS_MASK;
|
||||
|
||||
/* creating or taking down mappings is always safe */
|
||||
if (!pte_valid(__pte(old)) || !pte_valid(__pte(new)))
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
#define __ARCH_WANT_SYS_CLONE3
|
||||
#define __ARCH_WANT_SET_GET_RLIMIT
|
||||
#define __ARCH_WANT_TIME32_SYSCALLS
|
||||
#define __ARCH_WANT_SYNC_FILE_RANGE2
|
||||
#include <asm-generic/unistd.h>
|
||||
|
||||
#define __NR_set_thread_area (__NR_arch_specific_syscall + 0)
|
||||
|
||||
@ -20,7 +20,7 @@ SYSCALL_DEFINE6(mmap2,
|
||||
unsigned long, prot,
|
||||
unsigned long, flags,
|
||||
unsigned long, fd,
|
||||
off_t, offset)
|
||||
unsigned long, offset)
|
||||
{
|
||||
if (unlikely(offset & (~PAGE_MASK >> 12)))
|
||||
return -EINVAL;
|
||||
|
||||
6
arch/hexagon/include/asm/syscalls.h
Normal file
6
arch/hexagon/include/asm/syscalls.h
Normal file
@ -0,0 +1,6 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
|
||||
#include <asm-generic/syscalls.h>
|
||||
|
||||
asmlinkage long sys_hexagon_fadvise64_64(int fd, int advice,
|
||||
u32 a2, u32 a3, u32 a4, u32 a5);
|
||||
@ -36,5 +36,6 @@
|
||||
#define __ARCH_WANT_SYS_VFORK
|
||||
#define __ARCH_WANT_SYS_FORK
|
||||
#define __ARCH_WANT_TIME32_SYSCALLS
|
||||
#define __ARCH_WANT_SYNC_FILE_RANGE2
|
||||
|
||||
#include <asm-generic/unistd.h>
|
||||
|
||||
@ -14,6 +14,13 @@
|
||||
#undef __SYSCALL
|
||||
#define __SYSCALL(nr, call) [nr] = (call),
|
||||
|
||||
SYSCALL_DEFINE6(hexagon_fadvise64_64, int, fd, int, advice,
|
||||
SC_ARG64(offset), SC_ARG64(len))
|
||||
{
|
||||
return ksys_fadvise64_64(fd, SC_VAL64(loff_t, offset), SC_VAL64(loff_t, len), advice);
|
||||
}
|
||||
#define sys_fadvise64_64 sys_hexagon_fadvise64_64
|
||||
|
||||
void *sys_call_table[__NR_syscalls] = {
|
||||
#include <asm/unistd.h>
|
||||
};
|
||||
|
||||
@ -143,7 +143,7 @@ config LOONGARCH
|
||||
select HAVE_LIVEPATCH
|
||||
select HAVE_MOD_ARCH_SPECIFIC
|
||||
select HAVE_NMI
|
||||
select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS
|
||||
select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS && AS_HAS_THIN_ADD_SUB && !CC_IS_CLANG
|
||||
select HAVE_PCI
|
||||
select HAVE_PERF_EVENTS
|
||||
select HAVE_PERF_REGS
|
||||
@ -261,6 +261,9 @@ config AS_HAS_EXPLICIT_RELOCS
|
||||
config AS_HAS_FCSR_CLASS
|
||||
def_bool $(as-instr,movfcsr2gr \$t0$(comma)\$fcsr0)
|
||||
|
||||
config AS_HAS_THIN_ADD_SUB
|
||||
def_bool $(cc-option,-Wa$(comma)-mthin-add-sub)
|
||||
|
||||
config AS_HAS_LSX_EXTENSION
|
||||
def_bool $(as-instr,vld \$vr0$(comma)\$a0$(comma)0)
|
||||
|
||||
|
||||
@ -28,6 +28,7 @@ config UNWINDER_PROLOGUE
|
||||
|
||||
config UNWINDER_ORC
|
||||
bool "ORC unwinder"
|
||||
depends on HAVE_OBJTOOL
|
||||
select OBJTOOL
|
||||
help
|
||||
This option enables the ORC (Oops Rewind Capability) unwinder for
|
||||
|
||||
@ -75,6 +75,8 @@ do { \
|
||||
#define CSR_MWPC_NUM 0x3f
|
||||
|
||||
#define CTRL_PLV_ENABLE 0x1e
|
||||
#define CTRL_PLV0_ENABLE 0x02
|
||||
#define CTRL_PLV3_ENABLE 0x10
|
||||
|
||||
#define MWPnCFG3_LoadEn 8
|
||||
#define MWPnCFG3_StoreEn 9
|
||||
@ -101,7 +103,7 @@ struct perf_event;
|
||||
struct perf_event_attr;
|
||||
|
||||
extern int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
|
||||
int *gen_len, int *gen_type, int *offset);
|
||||
int *gen_len, int *gen_type);
|
||||
extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
|
||||
extern int hw_breakpoint_arch_parse(struct perf_event *bp,
|
||||
const struct perf_event_attr *attr,
|
||||
|
||||
@ -174,11 +174,21 @@ void flush_ptrace_hw_breakpoint(struct task_struct *tsk)
|
||||
static int hw_breakpoint_control(struct perf_event *bp,
|
||||
enum hw_breakpoint_ops ops)
|
||||
{
|
||||
u32 ctrl;
|
||||
u32 ctrl, privilege;
|
||||
int i, max_slots, enable;
|
||||
struct pt_regs *regs;
|
||||
struct perf_event **slots;
|
||||
struct arch_hw_breakpoint *info = counter_arch_bp(bp);
|
||||
|
||||
if (arch_check_bp_in_kernelspace(info))
|
||||
privilege = CTRL_PLV0_ENABLE;
|
||||
else
|
||||
privilege = CTRL_PLV3_ENABLE;
|
||||
|
||||
/* Whether bp belongs to a task. */
|
||||
if (bp->hw.target)
|
||||
regs = task_pt_regs(bp->hw.target);
|
||||
|
||||
if (info->ctrl.type == LOONGARCH_BREAKPOINT_EXECUTE) {
|
||||
/* Breakpoint */
|
||||
slots = this_cpu_ptr(bp_on_reg);
|
||||
@ -197,31 +207,38 @@ static int hw_breakpoint_control(struct perf_event *bp,
|
||||
switch (ops) {
|
||||
case HW_BREAKPOINT_INSTALL:
|
||||
/* Set the FWPnCFG/MWPnCFG 1~4 register. */
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 0, info->address);
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 1, info->address);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 0, info->mask);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 1, info->mask);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 1, 0);
|
||||
if (info->ctrl.type == LOONGARCH_BREAKPOINT_EXECUTE) {
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 0, CTRL_PLV_ENABLE);
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 0, info->address);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 0, info->mask);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 0, privilege);
|
||||
} else {
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 1, info->address);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 1, info->mask);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 1, 0);
|
||||
ctrl = encode_ctrl_reg(info->ctrl);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 1, ctrl | CTRL_PLV_ENABLE);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 1, ctrl | privilege);
|
||||
}
|
||||
enable = csr_read64(LOONGARCH_CSR_CRMD);
|
||||
csr_write64(CSR_CRMD_WE | enable, LOONGARCH_CSR_CRMD);
|
||||
if (bp->hw.target)
|
||||
regs->csr_prmd |= CSR_PRMD_PWE;
|
||||
break;
|
||||
case HW_BREAKPOINT_UNINSTALL:
|
||||
/* Reset the FWPnCFG/MWPnCFG 1~4 register. */
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 1, 0);
|
||||
if (info->ctrl.type == LOONGARCH_BREAKPOINT_EXECUTE) {
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 0, 0);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 0, 0);
|
||||
} else {
|
||||
write_wb_reg(CSR_CFG_ADDR, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_MASK, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_CTRL, i, 1, 0);
|
||||
write_wb_reg(CSR_CFG_ASID, i, 1, 0);
|
||||
}
|
||||
if (bp->hw.target)
|
||||
regs->csr_prmd &= ~CSR_PRMD_PWE;
|
||||
break;
|
||||
}
|
||||
|
||||
@ -283,7 +300,7 @@ int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw)
|
||||
* to generic breakpoint descriptions.
|
||||
*/
|
||||
int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
|
||||
int *gen_len, int *gen_type, int *offset)
|
||||
int *gen_len, int *gen_type)
|
||||
{
|
||||
/* Type */
|
||||
switch (ctrl.type) {
|
||||
@ -303,11 +320,6 @@ int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!ctrl.len)
|
||||
return -EINVAL;
|
||||
|
||||
*offset = __ffs(ctrl.len);
|
||||
|
||||
/* Len */
|
||||
switch (ctrl.len) {
|
||||
case LOONGARCH_BREAKPOINT_LEN_1:
|
||||
@ -386,21 +398,17 @@ int hw_breakpoint_arch_parse(struct perf_event *bp,
|
||||
struct arch_hw_breakpoint *hw)
|
||||
{
|
||||
int ret;
|
||||
u64 alignment_mask, offset;
|
||||
u64 alignment_mask;
|
||||
|
||||
/* Build the arch_hw_breakpoint. */
|
||||
ret = arch_build_bp_info(bp, attr, hw);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (hw->ctrl.type != LOONGARCH_BREAKPOINT_EXECUTE)
|
||||
alignment_mask = 0x7;
|
||||
else
|
||||
if (hw->ctrl.type == LOONGARCH_BREAKPOINT_EXECUTE) {
|
||||
alignment_mask = 0x3;
|
||||
offset = hw->address & alignment_mask;
|
||||
|
||||
hw->address &= ~alignment_mask;
|
||||
hw->ctrl.len <<= offset;
|
||||
hw->address &= ~alignment_mask;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -471,12 +479,15 @@ void breakpoint_handler(struct pt_regs *regs)
|
||||
slots = this_cpu_ptr(bp_on_reg);
|
||||
|
||||
for (i = 0; i < boot_cpu_data.watch_ireg_count; ++i) {
|
||||
bp = slots[i];
|
||||
if (bp == NULL)
|
||||
continue;
|
||||
perf_bp_event(bp, regs);
|
||||
if ((csr_read32(LOONGARCH_CSR_FWPS) & (0x1 << i))) {
|
||||
bp = slots[i];
|
||||
if (bp == NULL)
|
||||
continue;
|
||||
perf_bp_event(bp, regs);
|
||||
csr_write32(0x1 << i, LOONGARCH_CSR_FWPS);
|
||||
update_bp_registers(regs, 0, 0);
|
||||
}
|
||||
}
|
||||
update_bp_registers(regs, 0, 0);
|
||||
}
|
||||
NOKPROBE_SYMBOL(breakpoint_handler);
|
||||
|
||||
@ -488,12 +499,15 @@ void watchpoint_handler(struct pt_regs *regs)
|
||||
slots = this_cpu_ptr(wp_on_reg);
|
||||
|
||||
for (i = 0; i < boot_cpu_data.watch_dreg_count; ++i) {
|
||||
wp = slots[i];
|
||||
if (wp == NULL)
|
||||
continue;
|
||||
perf_bp_event(wp, regs);
|
||||
if ((csr_read32(LOONGARCH_CSR_MWPS) & (0x1 << i))) {
|
||||
wp = slots[i];
|
||||
if (wp == NULL)
|
||||
continue;
|
||||
perf_bp_event(wp, regs);
|
||||
csr_write32(0x1 << i, LOONGARCH_CSR_MWPS);
|
||||
update_bp_registers(regs, 0, 1);
|
||||
}
|
||||
}
|
||||
update_bp_registers(regs, 0, 1);
|
||||
}
|
||||
NOKPROBE_SYMBOL(watchpoint_handler);
|
||||
|
||||
|
||||
@ -494,28 +494,14 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
|
||||
struct arch_hw_breakpoint_ctrl ctrl,
|
||||
struct perf_event_attr *attr)
|
||||
{
|
||||
int err, len, type, offset;
|
||||
int err, len, type;
|
||||
|
||||
err = arch_bp_generic_fields(ctrl, &len, &type, &offset);
|
||||
err = arch_bp_generic_fields(ctrl, &len, &type);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
switch (note_type) {
|
||||
case NT_LOONGARCH_HW_BREAK:
|
||||
if ((type & HW_BREAKPOINT_X) != type)
|
||||
return -EINVAL;
|
||||
break;
|
||||
case NT_LOONGARCH_HW_WATCH:
|
||||
if ((type & HW_BREAKPOINT_RW) != type)
|
||||
return -EINVAL;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
attr->bp_len = len;
|
||||
attr->bp_type = type;
|
||||
attr->bp_addr += offset;
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -609,10 +595,27 @@ static int ptrace_hbp_set_ctrl(unsigned int note_type,
|
||||
return PTR_ERR(bp);
|
||||
|
||||
attr = bp->attr;
|
||||
decode_ctrl_reg(uctrl, &ctrl);
|
||||
err = ptrace_hbp_fill_attr_ctrl(note_type, ctrl, &attr);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
switch (note_type) {
|
||||
case NT_LOONGARCH_HW_BREAK:
|
||||
ctrl.type = LOONGARCH_BREAKPOINT_EXECUTE;
|
||||
ctrl.len = LOONGARCH_BREAKPOINT_LEN_4;
|
||||
break;
|
||||
case NT_LOONGARCH_HW_WATCH:
|
||||
decode_ctrl_reg(uctrl, &ctrl);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (uctrl & CTRL_PLV_ENABLE) {
|
||||
err = ptrace_hbp_fill_attr_ctrl(note_type, ctrl, &attr);
|
||||
if (err)
|
||||
return err;
|
||||
attr.disabled = 0;
|
||||
} else {
|
||||
attr.disabled = 1;
|
||||
}
|
||||
|
||||
return modify_user_hw_breakpoint(bp, &attr);
|
||||
}
|
||||
@ -643,6 +646,10 @@ static int ptrace_hbp_set_addr(unsigned int note_type,
|
||||
struct perf_event *bp;
|
||||
struct perf_event_attr attr;
|
||||
|
||||
/* Kernel-space address cannot be monitored by user-space */
|
||||
if ((unsigned long)addr >= XKPRANGE)
|
||||
return -EINVAL;
|
||||
|
||||
bp = ptrace_hbp_get_initialised_bp(note_type, tsk, idx);
|
||||
if (IS_ERR(bp))
|
||||
return PTR_ERR(bp);
|
||||
|
||||
@ -22,7 +22,7 @@
|
||||
#define __SYSCALL(nr, call) [nr] = (call),
|
||||
|
||||
SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, unsigned long,
|
||||
prot, unsigned long, flags, unsigned long, fd, off_t, offset)
|
||||
prot, unsigned long, flags, unsigned long, fd, unsigned long, offset)
|
||||
{
|
||||
if (offset & ~PAGE_MASK)
|
||||
return -EINVAL;
|
||||
|
||||
@ -761,7 +761,7 @@ static void kvm_handle_service(struct kvm_vcpu *vcpu)
|
||||
default:
|
||||
ret = KVM_HCALL_INVALID_CODE;
|
||||
break;
|
||||
};
|
||||
}
|
||||
|
||||
kvm_write_reg(vcpu, LOONGARCH_GPR_A0, ret);
|
||||
}
|
||||
|
||||
@ -35,7 +35,7 @@
|
||||
|
||||
SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
|
||||
unsigned long, prot, unsigned long, flags, unsigned long, fd,
|
||||
off_t, pgoff)
|
||||
unsigned long, pgoff)
|
||||
{
|
||||
if (pgoff & ~PAGE_MASK)
|
||||
return -EINVAL;
|
||||
|
||||
@ -110,7 +110,8 @@ static void bcm6358_quirks(void)
|
||||
* RAC flush causes kernel panics on BCM6358 when booting from TP1
|
||||
* because the bootloader is not initializing it properly.
|
||||
*/
|
||||
bmips_rac_flush_disable = !!(read_c0_brcm_cmt_local() & (1 << 31));
|
||||
bmips_rac_flush_disable = !!(read_c0_brcm_cmt_local() & (1 << 31)) ||
|
||||
!!BMIPS_GET_CBR();
|
||||
}
|
||||
|
||||
static void bcm6368_quirks(void)
|
||||
|
||||
@ -322,7 +322,7 @@ static inline void ehb(void)
|
||||
" .set push \n" \
|
||||
" .set "MIPS_ISA_LEVEL" \n" \
|
||||
_ASM_SET_MFTC0 \
|
||||
" mftc0 $1, " #rt ", " #sel " \n" \
|
||||
" mftc0 %0, " #rt ", " #sel " \n" \
|
||||
_ASM_UNSET_MFTC0 \
|
||||
" .set pop \n" \
|
||||
: "=r" (__res)); \
|
||||
|
||||
@ -354,7 +354,7 @@
|
||||
412 n32 utimensat_time64 sys_utimensat
|
||||
413 n32 pselect6_time64 compat_sys_pselect6_time64
|
||||
414 n32 ppoll_time64 compat_sys_ppoll_time64
|
||||
416 n32 io_pgetevents_time64 sys_io_pgetevents
|
||||
416 n32 io_pgetevents_time64 compat_sys_io_pgetevents_time64
|
||||
417 n32 recvmmsg_time64 compat_sys_recvmmsg_time64
|
||||
418 n32 mq_timedsend_time64 sys_mq_timedsend
|
||||
419 n32 mq_timedreceive_time64 sys_mq_timedreceive
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
17 o32 break sys_ni_syscall
|
||||
# 18 was sys_stat
|
||||
18 o32 unused18 sys_ni_syscall
|
||||
19 o32 lseek sys_lseek
|
||||
19 o32 lseek sys_lseek compat_sys_lseek
|
||||
20 o32 getpid sys_getpid
|
||||
21 o32 mount sys_mount
|
||||
22 o32 umount sys_oldumount
|
||||
@ -403,7 +403,7 @@
|
||||
412 o32 utimensat_time64 sys_utimensat sys_utimensat
|
||||
413 o32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
|
||||
414 o32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
|
||||
416 o32 io_pgetevents_time64 sys_io_pgetevents sys_io_pgetevents
|
||||
416 o32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
|
||||
417 o32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
|
||||
418 o32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
|
||||
419 o32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
|
||||
|
||||
@ -112,8 +112,8 @@ retry:
|
||||
* gives them time to settle
|
||||
*/
|
||||
if (where == PCI_VENDOR_ID) {
|
||||
if (ret == 0xffffffff || ret == 0x00000000 ||
|
||||
ret == 0x0000ffff || ret == 0xffff0000) {
|
||||
if (*val == 0xffffffff || *val == 0x00000000 ||
|
||||
*val == 0x0000ffff || *val == 0xffff0000) {
|
||||
if (delay > 4)
|
||||
return 0;
|
||||
delay *= 2;
|
||||
|
||||
@ -16,6 +16,7 @@ config PARISC
|
||||
select ARCH_HAS_UBSAN
|
||||
select ARCH_HAS_PTE_SPECIAL
|
||||
select ARCH_NO_SG_CHAIN
|
||||
select ARCH_SPLIT_ARG64 if !64BIT
|
||||
select ARCH_SUPPORTS_HUGETLBFS if PA20
|
||||
select ARCH_SUPPORTS_MEMORY_FAILURE
|
||||
select ARCH_STACKWALK
|
||||
|
||||
@ -23,12 +23,3 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
|
||||
current->comm, current->pid, r20);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
asmlinkage long sys32_fanotify_mark(compat_int_t fanotify_fd, compat_uint_t flags,
|
||||
compat_uint_t mask0, compat_uint_t mask1, compat_int_t dfd,
|
||||
const char __user * pathname)
|
||||
{
|
||||
return sys_fanotify_mark(fanotify_fd, flags,
|
||||
((__u64)mask1 << 32) | mask0,
|
||||
dfd, pathname);
|
||||
}
|
||||
|
||||
@ -108,7 +108,7 @@
|
||||
95 common fchown sys_fchown
|
||||
96 common getpriority sys_getpriority
|
||||
97 common setpriority sys_setpriority
|
||||
98 common recv sys_recv
|
||||
98 common recv sys_recv compat_sys_recv
|
||||
99 common statfs sys_statfs compat_sys_statfs
|
||||
100 common fstatfs sys_fstatfs compat_sys_fstatfs
|
||||
101 common stat64 sys_stat64
|
||||
@ -135,7 +135,7 @@
|
||||
120 common clone sys_clone_wrapper
|
||||
121 common setdomainname sys_setdomainname
|
||||
122 common sendfile sys_sendfile compat_sys_sendfile
|
||||
123 common recvfrom sys_recvfrom
|
||||
123 common recvfrom sys_recvfrom compat_sys_recvfrom
|
||||
124 32 adjtimex sys_adjtimex_time32
|
||||
124 64 adjtimex sys_adjtimex
|
||||
125 common mprotect sys_mprotect
|
||||
@ -364,7 +364,7 @@
|
||||
320 common accept4 sys_accept4
|
||||
321 common prlimit64 sys_prlimit64
|
||||
322 common fanotify_init sys_fanotify_init
|
||||
323 common fanotify_mark sys_fanotify_mark sys32_fanotify_mark
|
||||
323 common fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark
|
||||
324 32 clock_adjtime sys_clock_adjtime32
|
||||
324 64 clock_adjtime sys_clock_adjtime
|
||||
325 common name_to_handle_at sys_name_to_handle_at
|
||||
|
||||
2
arch/powerpc/crypto/.gitignore
vendored
2
arch/powerpc/crypto/.gitignore
vendored
@ -1,3 +1,5 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
aesp10-ppc.S
|
||||
aesp8-ppc.S
|
||||
ghashp10-ppc.S
|
||||
ghashp8-ppc.S
|
||||
|
||||
@ -230,8 +230,10 @@
|
||||
178 nospu rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
|
||||
179 32 pread64 sys_ppc_pread64 compat_sys_ppc_pread64
|
||||
179 64 pread64 sys_pread64
|
||||
179 spu pread64 sys_pread64
|
||||
180 32 pwrite64 sys_ppc_pwrite64 compat_sys_ppc_pwrite64
|
||||
180 64 pwrite64 sys_pwrite64
|
||||
180 spu pwrite64 sys_pwrite64
|
||||
181 common chown sys_chown
|
||||
182 common getcwd sys_getcwd
|
||||
183 common capget sys_capget
|
||||
@ -246,6 +248,7 @@
|
||||
190 common ugetrlimit sys_getrlimit compat_sys_getrlimit
|
||||
191 32 readahead sys_ppc_readahead compat_sys_ppc_readahead
|
||||
191 64 readahead sys_readahead
|
||||
191 spu readahead sys_readahead
|
||||
192 32 mmap2 sys_mmap2 compat_sys_mmap2
|
||||
193 32 truncate64 sys_ppc_truncate64 compat_sys_ppc_truncate64
|
||||
194 32 ftruncate64 sys_ppc_ftruncate64 compat_sys_ppc_ftruncate64
|
||||
@ -293,6 +296,7 @@
|
||||
232 nospu set_tid_address sys_set_tid_address
|
||||
233 32 fadvise64 sys_ppc32_fadvise64 compat_sys_ppc32_fadvise64
|
||||
233 64 fadvise64 sys_fadvise64
|
||||
233 spu fadvise64 sys_fadvise64
|
||||
234 nospu exit_group sys_exit_group
|
||||
235 nospu lookup_dcookie sys_ni_syscall
|
||||
236 common epoll_create sys_epoll_create
|
||||
@ -502,7 +506,7 @@
|
||||
412 32 utimensat_time64 sys_utimensat sys_utimensat
|
||||
413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
|
||||
414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
|
||||
416 32 io_pgetevents_time64 sys_io_pgetevents sys_io_pgetevents
|
||||
416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
|
||||
417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
|
||||
418 32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
|
||||
419 32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
|
||||
|
||||
@ -130,14 +130,16 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
}
|
||||
rcu_read_unlock();
|
||||
|
||||
fdput(f);
|
||||
|
||||
if (!found)
|
||||
if (!found) {
|
||||
fdput(f);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
table_group = iommu_group_get_iommudata(grp);
|
||||
if (WARN_ON(!table_group))
|
||||
if (WARN_ON(!table_group)) {
|
||||
fdput(f);
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
|
||||
struct iommu_table *tbltmp = table_group->tables[i];
|
||||
@ -158,8 +160,10 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!tbl)
|
||||
if (!tbl) {
|
||||
fdput(f);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(stit, &stt->iommu_tables, next) {
|
||||
@ -170,6 +174,7 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
/* stit is being destroyed */
|
||||
iommu_tce_table_put(tbl);
|
||||
rcu_read_unlock();
|
||||
fdput(f);
|
||||
return -ENOTTY;
|
||||
}
|
||||
/*
|
||||
@ -177,6 +182,7 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
* its KVM reference counter and can return.
|
||||
*/
|
||||
rcu_read_unlock();
|
||||
fdput(f);
|
||||
return 0;
|
||||
}
|
||||
rcu_read_unlock();
|
||||
@ -184,6 +190,7 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
stit = kzalloc(sizeof(*stit), GFP_KERNEL);
|
||||
if (!stit) {
|
||||
iommu_tce_table_put(tbl);
|
||||
fdput(f);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
@ -192,6 +199,7 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
|
||||
|
||||
list_add_rcu(&stit->next, &stt->iommu_tables);
|
||||
|
||||
fdput(f);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -45,6 +45,7 @@
|
||||
no-1-8-v;
|
||||
no-mmc;
|
||||
no-sdio;
|
||||
disable-wp;
|
||||
};
|
||||
|
||||
&uart0 {
|
||||
|
||||
@ -145,7 +145,7 @@
|
||||
|
||||
/* parts of opcode for RVF, RVD and RVQ */
|
||||
#define RVFDQ_FL_FS_WIDTH_OFF 12
|
||||
#define RVFDQ_FL_FS_WIDTH_MASK GENMASK(3, 0)
|
||||
#define RVFDQ_FL_FS_WIDTH_MASK GENMASK(2, 0)
|
||||
#define RVFDQ_FL_FS_WIDTH_W 2
|
||||
#define RVFDQ_FL_FS_WIDTH_D 3
|
||||
#define RVFDQ_LS_FS_WIDTH_Q 4
|
||||
|
||||
@ -120,9 +120,6 @@ int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec)
|
||||
out = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
|
||||
mutex_unlock(&text_mutex);
|
||||
|
||||
if (!mod)
|
||||
local_flush_icache_range(rec->ip, rec->ip + MCOUNT_INSN_SIZE);
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
@ -156,9 +153,9 @@ static int __ftrace_modify_code(void *data)
|
||||
} else {
|
||||
while (atomic_read(¶m->cpu_count) <= num_online_cpus())
|
||||
cpu_relax();
|
||||
}
|
||||
|
||||
local_flush_icache_all();
|
||||
local_flush_icache_all();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -89,6 +89,14 @@ static int __patch_insn_set(void *addr, u8 c, size_t len)
|
||||
|
||||
memset(waddr, c, len);
|
||||
|
||||
/*
|
||||
* We could have just patched a function that is about to be
|
||||
* called so make sure we don't execute partially patched
|
||||
* instructions by flushing the icache as soon as possible.
|
||||
*/
|
||||
local_flush_icache_range((unsigned long)waddr,
|
||||
(unsigned long)waddr + len);
|
||||
|
||||
patch_unmap(FIX_TEXT_POKE0);
|
||||
|
||||
if (across_pages)
|
||||
@ -135,6 +143,14 @@ static int __patch_insn_write(void *addr, const void *insn, size_t len)
|
||||
|
||||
ret = copy_to_kernel_nofault(waddr, insn, len);
|
||||
|
||||
/*
|
||||
* We could have just patched a function that is about to be
|
||||
* called so make sure we don't execute partially patched
|
||||
* instructions by flushing the icache as soon as possible.
|
||||
*/
|
||||
local_flush_icache_range((unsigned long)waddr,
|
||||
(unsigned long)waddr + len);
|
||||
|
||||
patch_unmap(FIX_TEXT_POKE0);
|
||||
|
||||
if (across_pages)
|
||||
@ -189,9 +205,6 @@ int patch_text_set_nosync(void *addr, u8 c, size_t len)
|
||||
|
||||
ret = patch_insn_set(tp, c, len);
|
||||
|
||||
if (!ret)
|
||||
flush_icache_range((uintptr_t)tp, (uintptr_t)tp + len);
|
||||
|
||||
return ret;
|
||||
}
|
||||
NOKPROBE_SYMBOL(patch_text_set_nosync);
|
||||
@ -224,9 +237,6 @@ int patch_text_nosync(void *addr, const void *insns, size_t len)
|
||||
|
||||
ret = patch_insn_write(tp, insns, len);
|
||||
|
||||
if (!ret)
|
||||
flush_icache_range((uintptr_t) tp, (uintptr_t) tp + len);
|
||||
|
||||
return ret;
|
||||
}
|
||||
NOKPROBE_SYMBOL(patch_text_nosync);
|
||||
@ -253,9 +263,9 @@ static int patch_text_cb(void *data)
|
||||
} else {
|
||||
while (atomic_read(&patch->cpu_count) <= num_online_cpus())
|
||||
cpu_relax();
|
||||
}
|
||||
|
||||
local_flush_icache_all();
|
||||
local_flush_icache_all();
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -156,7 +156,7 @@ unsigned long __get_wchan(struct task_struct *task)
|
||||
return pc;
|
||||
}
|
||||
|
||||
noinline void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
|
||||
noinline noinstr void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
|
||||
struct task_struct *task, struct pt_regs *regs)
|
||||
{
|
||||
walk_stackframe(task, regs, consume_entry, cookie);
|
||||
|
||||
@ -23,7 +23,7 @@ static long riscv_sys_mmap(unsigned long addr, unsigned long len,
|
||||
#ifdef CONFIG_64BIT
|
||||
SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
|
||||
unsigned long, prot, unsigned long, flags,
|
||||
unsigned long, fd, off_t, offset)
|
||||
unsigned long, fd, unsigned long, offset)
|
||||
{
|
||||
return riscv_sys_mmap(addr, len, prot, flags, fd, offset, 0);
|
||||
}
|
||||
@ -32,7 +32,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
|
||||
#if defined(CONFIG_32BIT) || defined(CONFIG_COMPAT)
|
||||
SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
|
||||
unsigned long, prot, unsigned long, flags,
|
||||
unsigned long, fd, off_t, offset)
|
||||
unsigned long, fd, unsigned long, offset)
|
||||
{
|
||||
/*
|
||||
* Note that the shift for mmap2 is constant (12),
|
||||
|
||||
@ -170,11 +170,14 @@ static void kaslr_adjust_got(unsigned long offset)
|
||||
u64 *entry;
|
||||
|
||||
/*
|
||||
* Even without -fPIE, Clang still uses a global offset table for some
|
||||
* reason. Adjust the GOT entries.
|
||||
* Adjust GOT entries, except for ones for undefined weak symbols
|
||||
* that resolved to zero. This also skips the first three reserved
|
||||
* entries on s390x that are zero.
|
||||
*/
|
||||
for (entry = (u64 *)vmlinux.got_start; entry < (u64 *)vmlinux.got_end; entry++)
|
||||
*entry += offset - __START_KERNEL;
|
||||
for (entry = (u64 *)vmlinux.got_start; entry < (u64 *)vmlinux.got_end; entry++) {
|
||||
if (*entry)
|
||||
*entry += offset - __START_KERNEL;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -54,7 +54,7 @@ static __always_inline void arch_exit_to_user_mode(void)
|
||||
static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
|
||||
unsigned long ti_work)
|
||||
{
|
||||
choose_random_kstack_offset(get_tod_clock_fast() & 0xff);
|
||||
choose_random_kstack_offset(get_tod_clock_fast());
|
||||
}
|
||||
|
||||
#define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
|
||||
|
||||
@ -38,33 +38,6 @@
|
||||
|
||||
#include "entry.h"
|
||||
|
||||
/*
|
||||
* Perform the mmap() system call. Linux for S/390 isn't able to handle more
|
||||
* than 5 system call parameters, so this system call uses a memory block
|
||||
* for parameter passing.
|
||||
*/
|
||||
|
||||
struct s390_mmap_arg_struct {
|
||||
unsigned long addr;
|
||||
unsigned long len;
|
||||
unsigned long prot;
|
||||
unsigned long flags;
|
||||
unsigned long fd;
|
||||
unsigned long offset;
|
||||
};
|
||||
|
||||
SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg)
|
||||
{
|
||||
struct s390_mmap_arg_struct a;
|
||||
int error = -EFAULT;
|
||||
|
||||
if (copy_from_user(&a, arg, sizeof(a)))
|
||||
goto out;
|
||||
error = ksys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
|
||||
out:
|
||||
return error;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SYSVIPC
|
||||
/*
|
||||
* sys_ipc() is the de-multiplexer for the SysV IPC calls.
|
||||
|
||||
@ -418,7 +418,7 @@
|
||||
412 32 utimensat_time64 - sys_utimensat
|
||||
413 32 pselect6_time64 - compat_sys_pselect6_time64
|
||||
414 32 ppoll_time64 - compat_sys_ppoll_time64
|
||||
416 32 io_pgetevents_time64 - sys_io_pgetevents
|
||||
416 32 io_pgetevents_time64 - compat_sys_io_pgetevents_time64
|
||||
417 32 recvmmsg_time64 - compat_sys_recvmmsg_time64
|
||||
418 32 mq_timedsend_time64 - sys_mq_timedsend
|
||||
419 32 mq_timedreceive_time64 - sys_mq_timedreceive
|
||||
|
||||
@ -410,7 +410,7 @@ static void __init cpu_enable_directed_irq(void *unused)
|
||||
union zpci_sic_iib iib = {{0}};
|
||||
union zpci_sic_iib ziib = {{0}};
|
||||
|
||||
iib.cdiib.dibv_addr = (u64) zpci_ibv[smp_processor_id()]->vector;
|
||||
iib.cdiib.dibv_addr = virt_to_phys(zpci_ibv[smp_processor_id()]->vector);
|
||||
|
||||
zpci_set_irq_ctrl(SIC_IRQ_MODE_SET_CPU, 0, &iib);
|
||||
zpci_set_irq_ctrl(SIC_IRQ_MODE_D_SINGLE, PCI_ISC, &ziib);
|
||||
|
||||
@ -59,3 +59,14 @@ asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
|
||||
(u64)len0 << 32 | len1, advice);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* swap the arguments the way that libc wants them instead of
|
||||
* moving flags ahead of the 64-bit nbytes argument
|
||||
*/
|
||||
SYSCALL_DEFINE6(sh_sync_file_range6, int, fd, SC_ARG64(offset),
|
||||
SC_ARG64(nbytes), unsigned int, flags)
|
||||
{
|
||||
return ksys_sync_file_range(fd, SC_VAL64(loff_t, offset),
|
||||
SC_VAL64(loff_t, nbytes), flags);
|
||||
}
|
||||
|
||||
@ -321,7 +321,7 @@
|
||||
311 common set_robust_list sys_set_robust_list
|
||||
312 common get_robust_list sys_get_robust_list
|
||||
313 common splice sys_splice
|
||||
314 common sync_file_range sys_sync_file_range
|
||||
314 common sync_file_range sys_sh_sync_file_range6
|
||||
315 common tee sys_tee
|
||||
316 common vmsplice sys_vmsplice
|
||||
317 common move_pages sys_move_pages
|
||||
@ -395,6 +395,7 @@
|
||||
385 common pkey_alloc sys_pkey_alloc
|
||||
386 common pkey_free sys_pkey_free
|
||||
387 common rseq sys_rseq
|
||||
388 common sync_file_range2 sys_sync_file_range2
|
||||
# room for arch specific syscalls
|
||||
393 common semget sys_semget
|
||||
394 common semctl sys_semctl
|
||||
|
||||
@ -18,224 +18,3 @@ sys32_mmap2:
|
||||
sethi %hi(sys_mmap), %g1
|
||||
jmpl %g1 + %lo(sys_mmap), %g0
|
||||
sllx %o5, 12, %o5
|
||||
|
||||
.align 32
|
||||
.globl sys32_socketcall
|
||||
sys32_socketcall: /* %o0=call, %o1=args */
|
||||
cmp %o0, 1
|
||||
bl,pn %xcc, do_einval
|
||||
cmp %o0, 18
|
||||
bg,pn %xcc, do_einval
|
||||
sub %o0, 1, %o0
|
||||
sllx %o0, 5, %o0
|
||||
sethi %hi(__socketcall_table_begin), %g2
|
||||
or %g2, %lo(__socketcall_table_begin), %g2
|
||||
jmpl %g2 + %o0, %g0
|
||||
nop
|
||||
do_einval:
|
||||
retl
|
||||
mov -EINVAL, %o0
|
||||
|
||||
.align 32
|
||||
__socketcall_table_begin:
|
||||
|
||||
/* Each entry is exactly 32 bytes. */
|
||||
do_sys_socket: /* sys_socket(int, int, int) */
|
||||
1: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_socket), %g1
|
||||
2: ldswa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_socket), %g0
|
||||
3: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
|
||||
4: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_bind), %g1
|
||||
5: ldswa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_bind), %g0
|
||||
6: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
|
||||
7: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_connect), %g1
|
||||
8: ldswa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_connect), %g0
|
||||
9: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_listen: /* sys_listen(int, int) */
|
||||
10: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_listen), %g1
|
||||
jmpl %g1 + %lo(sys_listen), %g0
|
||||
11: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
|
||||
12: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_accept), %g1
|
||||
13: lduwa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_accept), %g0
|
||||
14: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
|
||||
15: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_getsockname), %g1
|
||||
16: lduwa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_getsockname), %g0
|
||||
17: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
|
||||
18: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_getpeername), %g1
|
||||
19: lduwa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(sys_getpeername), %g0
|
||||
20: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
|
||||
21: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_socketpair), %g1
|
||||
22: ldswa [%o1 + 0x8] %asi, %o2
|
||||
23: lduwa [%o1 + 0xc] %asi, %o3
|
||||
jmpl %g1 + %lo(sys_socketpair), %g0
|
||||
24: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
|
||||
25: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_send), %g1
|
||||
26: lduwa [%o1 + 0x8] %asi, %o2
|
||||
27: lduwa [%o1 + 0xc] %asi, %o3
|
||||
jmpl %g1 + %lo(sys_send), %g0
|
||||
28: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
|
||||
29: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_recv), %g1
|
||||
30: lduwa [%o1 + 0x8] %asi, %o2
|
||||
31: lduwa [%o1 + 0xc] %asi, %o3
|
||||
jmpl %g1 + %lo(sys_recv), %g0
|
||||
32: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
|
||||
33: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_sendto), %g1
|
||||
34: lduwa [%o1 + 0x8] %asi, %o2
|
||||
35: lduwa [%o1 + 0xc] %asi, %o3
|
||||
36: lduwa [%o1 + 0x10] %asi, %o4
|
||||
37: ldswa [%o1 + 0x14] %asi, %o5
|
||||
jmpl %g1 + %lo(sys_sendto), %g0
|
||||
38: lduwa [%o1 + 0x4] %asi, %o1
|
||||
do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
|
||||
39: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_recvfrom), %g1
|
||||
40: lduwa [%o1 + 0x8] %asi, %o2
|
||||
41: lduwa [%o1 + 0xc] %asi, %o3
|
||||
42: lduwa [%o1 + 0x10] %asi, %o4
|
||||
43: lduwa [%o1 + 0x14] %asi, %o5
|
||||
jmpl %g1 + %lo(sys_recvfrom), %g0
|
||||
44: lduwa [%o1 + 0x4] %asi, %o1
|
||||
do_sys_shutdown: /* sys_shutdown(int, int) */
|
||||
45: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_shutdown), %g1
|
||||
jmpl %g1 + %lo(sys_shutdown), %g0
|
||||
46: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_setsockopt: /* sys_setsockopt(int, int, int, char *, int) */
|
||||
47: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_setsockopt), %g1
|
||||
48: ldswa [%o1 + 0x8] %asi, %o2
|
||||
49: lduwa [%o1 + 0xc] %asi, %o3
|
||||
50: ldswa [%o1 + 0x10] %asi, %o4
|
||||
jmpl %g1 + %lo(sys_setsockopt), %g0
|
||||
51: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
do_sys_getsockopt: /* sys_getsockopt(int, int, int, u32, u32) */
|
||||
52: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_getsockopt), %g1
|
||||
53: ldswa [%o1 + 0x8] %asi, %o2
|
||||
54: lduwa [%o1 + 0xc] %asi, %o3
|
||||
55: lduwa [%o1 + 0x10] %asi, %o4
|
||||
jmpl %g1 + %lo(sys_getsockopt), %g0
|
||||
56: ldswa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
|
||||
57: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(compat_sys_sendmsg), %g1
|
||||
58: lduwa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(compat_sys_sendmsg), %g0
|
||||
59: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
|
||||
60: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(compat_sys_recvmsg), %g1
|
||||
61: lduwa [%o1 + 0x8] %asi, %o2
|
||||
jmpl %g1 + %lo(compat_sys_recvmsg), %g0
|
||||
62: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
|
||||
63: ldswa [%o1 + 0x0] %asi, %o0
|
||||
sethi %hi(sys_accept4), %g1
|
||||
64: lduwa [%o1 + 0x8] %asi, %o2
|
||||
65: ldswa [%o1 + 0xc] %asi, %o3
|
||||
jmpl %g1 + %lo(sys_accept4), %g0
|
||||
66: lduwa [%o1 + 0x4] %asi, %o1
|
||||
nop
|
||||
nop
|
||||
|
||||
.section __ex_table,"a"
|
||||
.align 4
|
||||
.word 1b, __retl_efault, 2b, __retl_efault
|
||||
.word 3b, __retl_efault, 4b, __retl_efault
|
||||
.word 5b, __retl_efault, 6b, __retl_efault
|
||||
.word 7b, __retl_efault, 8b, __retl_efault
|
||||
.word 9b, __retl_efault, 10b, __retl_efault
|
||||
.word 11b, __retl_efault, 12b, __retl_efault
|
||||
.word 13b, __retl_efault, 14b, __retl_efault
|
||||
.word 15b, __retl_efault, 16b, __retl_efault
|
||||
.word 17b, __retl_efault, 18b, __retl_efault
|
||||
.word 19b, __retl_efault, 20b, __retl_efault
|
||||
.word 21b, __retl_efault, 22b, __retl_efault
|
||||
.word 23b, __retl_efault, 24b, __retl_efault
|
||||
.word 25b, __retl_efault, 26b, __retl_efault
|
||||
.word 27b, __retl_efault, 28b, __retl_efault
|
||||
.word 29b, __retl_efault, 30b, __retl_efault
|
||||
.word 31b, __retl_efault, 32b, __retl_efault
|
||||
.word 33b, __retl_efault, 34b, __retl_efault
|
||||
.word 35b, __retl_efault, 36b, __retl_efault
|
||||
.word 37b, __retl_efault, 38b, __retl_efault
|
||||
.word 39b, __retl_efault, 40b, __retl_efault
|
||||
.word 41b, __retl_efault, 42b, __retl_efault
|
||||
.word 43b, __retl_efault, 44b, __retl_efault
|
||||
.word 45b, __retl_efault, 46b, __retl_efault
|
||||
.word 47b, __retl_efault, 48b, __retl_efault
|
||||
.word 49b, __retl_efault, 50b, __retl_efault
|
||||
.word 51b, __retl_efault, 52b, __retl_efault
|
||||
.word 53b, __retl_efault, 54b, __retl_efault
|
||||
.word 55b, __retl_efault, 56b, __retl_efault
|
||||
.word 57b, __retl_efault, 58b, __retl_efault
|
||||
.word 59b, __retl_efault, 60b, __retl_efault
|
||||
.word 61b, __retl_efault, 62b, __retl_efault
|
||||
.word 63b, __retl_efault, 64b, __retl_efault
|
||||
.word 65b, __retl_efault, 66b, __retl_efault
|
||||
.previous
|
||||
|
||||
@ -117,7 +117,7 @@
|
||||
90 common dup2 sys_dup2
|
||||
91 32 setfsuid32 sys_setfsuid
|
||||
92 common fcntl sys_fcntl compat_sys_fcntl
|
||||
93 common select sys_select
|
||||
93 common select sys_select compat_sys_select
|
||||
94 32 setfsgid32 sys_setfsgid
|
||||
95 common fsync sys_fsync
|
||||
96 common setpriority sys_setpriority
|
||||
@ -155,7 +155,7 @@
|
||||
123 32 fchown sys_fchown16
|
||||
123 64 fchown sys_fchown
|
||||
124 common fchmod sys_fchmod
|
||||
125 common recvfrom sys_recvfrom
|
||||
125 common recvfrom sys_recvfrom compat_sys_recvfrom
|
||||
126 32 setreuid sys_setreuid16
|
||||
126 64 setreuid sys_setreuid
|
||||
127 32 setregid sys_setregid16
|
||||
@ -247,7 +247,7 @@
|
||||
204 32 readdir sys_old_readdir compat_sys_old_readdir
|
||||
204 64 readdir sys_nis_syscall
|
||||
205 common readahead sys_readahead compat_sys_readahead
|
||||
206 common socketcall sys_socketcall sys32_socketcall
|
||||
206 common socketcall sys_socketcall compat_sys_socketcall
|
||||
207 common syslog sys_syslog
|
||||
208 common lookup_dcookie sys_ni_syscall
|
||||
209 common fadvise64 sys_fadvise64 compat_sys_fadvise64
|
||||
@ -461,7 +461,7 @@
|
||||
412 32 utimensat_time64 sys_utimensat sys_utimensat
|
||||
413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
|
||||
414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
|
||||
416 32 io_pgetevents_time64 sys_io_pgetevents sys_io_pgetevents
|
||||
416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
|
||||
417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
|
||||
418 32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
|
||||
419 32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
|
||||
|
||||
@ -420,7 +420,7 @@
|
||||
412 i386 utimensat_time64 sys_utimensat
|
||||
413 i386 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
|
||||
414 i386 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
|
||||
416 i386 io_pgetevents_time64 sys_io_pgetevents
|
||||
416 i386 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
|
||||
417 i386 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
|
||||
418 i386 mq_timedsend_time64 sys_mq_timedsend
|
||||
419 i386 mq_timedreceive_time64 sys_mq_timedreceive
|
||||
|
||||
@ -93,10 +93,9 @@ static __always_inline bool __try_cmpxchg64_local(volatile u64 *ptr, u64 *oldp,
|
||||
\
|
||||
asm volatile(ALTERNATIVE(_lock_loc \
|
||||
"call cmpxchg8b_emu", \
|
||||
_lock "cmpxchg8b %[ptr]", X86_FEATURE_CX8) \
|
||||
: [ptr] "+m" (*(_ptr)), \
|
||||
"+a" (o.low), "+d" (o.high) \
|
||||
: "b" (n.low), "c" (n.high), "S" (_ptr) \
|
||||
_lock "cmpxchg8b %a[ptr]", X86_FEATURE_CX8) \
|
||||
: "+a" (o.low), "+d" (o.high) \
|
||||
: "b" (n.low), "c" (n.high), [ptr] "S" (_ptr) \
|
||||
: "memory"); \
|
||||
\
|
||||
o.full; \
|
||||
@ -122,12 +121,11 @@ static __always_inline u64 arch_cmpxchg64_local(volatile u64 *ptr, u64 old, u64
|
||||
\
|
||||
asm volatile(ALTERNATIVE(_lock_loc \
|
||||
"call cmpxchg8b_emu", \
|
||||
_lock "cmpxchg8b %[ptr]", X86_FEATURE_CX8) \
|
||||
_lock "cmpxchg8b %a[ptr]", X86_FEATURE_CX8) \
|
||||
CC_SET(e) \
|
||||
: CC_OUT(e) (ret), \
|
||||
[ptr] "+m" (*(_ptr)), \
|
||||
"+a" (o.low), "+d" (o.high) \
|
||||
: "b" (n.low), "c" (n.high), "S" (_ptr) \
|
||||
: "b" (n.low), "c" (n.high), [ptr] "S" (_ptr) \
|
||||
: "memory"); \
|
||||
\
|
||||
if (unlikely(!ret)) \
|
||||
|
||||
@ -401,7 +401,6 @@ extern int __init efi_memmap_alloc(unsigned int num_entries,
|
||||
struct efi_memory_map_data *data);
|
||||
extern void __efi_memmap_free(u64 phys, unsigned long size,
|
||||
unsigned long flags);
|
||||
#define __efi_memmap_free __efi_memmap_free
|
||||
|
||||
extern int __init efi_memmap_install(struct efi_memory_map_data *data);
|
||||
extern int __init efi_memmap_split_count(efi_memory_desc_t *md,
|
||||
|
||||
@ -73,19 +73,16 @@ static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Ultimately, this value will get limited by KSTACK_OFFSET_MAX(),
|
||||
* but not enough for x86 stack utilization comfort. To keep
|
||||
* reasonable stack head room, reduce the maximum offset to 8 bits.
|
||||
*
|
||||
* The actual entropy will be further reduced by the compiler when
|
||||
* applying stack alignment constraints (see cc_stack_align4/8 in
|
||||
* This value will get limited by KSTACK_OFFSET_MAX(), which is 10
|
||||
* bits. The actual entropy will be further reduced by the compiler
|
||||
* when applying stack alignment constraints (see cc_stack_align4/8 in
|
||||
* arch/x86/Makefile), which will remove the 3 (x86_64) or 2 (ia32)
|
||||
* low bits from any entropy chosen here.
|
||||
*
|
||||
* Therefore, final stack offset entropy will be 5 (x86_64) or
|
||||
* 6 (ia32) bits.
|
||||
* Therefore, final stack offset entropy will be 7 (x86_64) or
|
||||
* 8 (ia32) bits.
|
||||
*/
|
||||
choose_random_kstack_offset(rdtsc() & 0xFF);
|
||||
choose_random_kstack_offset(rdtsc());
|
||||
}
|
||||
#define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
|
||||
|
||||
|
||||
@ -519,7 +519,8 @@ void free_rmid(u32 closid, u32 rmid)
|
||||
* allows architectures that ignore the closid parameter to avoid an
|
||||
* unnecessary check.
|
||||
*/
|
||||
if (idx == resctrl_arch_rmid_idx_encode(RESCTRL_RESERVED_CLOSID,
|
||||
if (!resctrl_arch_mon_capable() ||
|
||||
idx == resctrl_arch_rmid_idx_encode(RESCTRL_RESERVED_CLOSID,
|
||||
RESCTRL_RESERVED_RMID))
|
||||
return;
|
||||
|
||||
|
||||
@ -27,25 +27,7 @@
|
||||
|
||||
unsigned long profile_pc(struct pt_regs *regs)
|
||||
{
|
||||
unsigned long pc = instruction_pointer(regs);
|
||||
|
||||
if (!user_mode(regs) && in_lock_functions(pc)) {
|
||||
#ifdef CONFIG_FRAME_POINTER
|
||||
return *(unsigned long *)(regs->bp + sizeof(long));
|
||||
#else
|
||||
unsigned long *sp = (unsigned long *)regs->sp;
|
||||
/*
|
||||
* Return address is either directly at stack pointer
|
||||
* or above a saved flags. Eflags has bits 22-31 zero,
|
||||
* kernel addresses don't.
|
||||
*/
|
||||
if (sp[0] >> 22)
|
||||
return sp[0];
|
||||
if (sp[1] >> 22)
|
||||
return sp[1];
|
||||
#endif
|
||||
}
|
||||
return pc;
|
||||
return instruction_pointer(regs);
|
||||
}
|
||||
EXPORT_SYMBOL(profile_pc);
|
||||
|
||||
|
||||
@ -2843,7 +2843,7 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
|
||||
|
||||
if (sev_es_prevent_msr_access(vcpu, msr_info)) {
|
||||
msr_info->data = 0;
|
||||
return -EINVAL;
|
||||
return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0;
|
||||
}
|
||||
|
||||
switch (msr_info->index) {
|
||||
@ -2998,7 +2998,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
|
||||
u64 data = msr->data;
|
||||
|
||||
if (sev_es_prevent_msr_access(vcpu, msr))
|
||||
return -EINVAL;
|
||||
return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0;
|
||||
|
||||
switch (ecx) {
|
||||
case MSR_AMD64_TSC_RATIO:
|
||||
|
||||
@ -10718,13 +10718,12 @@ static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
|
||||
|
||||
bitmap_zero(vcpu->arch.ioapic_handled_vectors, 256);
|
||||
|
||||
static_call_cond(kvm_x86_sync_pir_to_irr)(vcpu);
|
||||
|
||||
if (irqchip_split(vcpu->kvm))
|
||||
kvm_scan_ioapic_routes(vcpu, vcpu->arch.ioapic_handled_vectors);
|
||||
else {
|
||||
static_call_cond(kvm_x86_sync_pir_to_irr)(vcpu);
|
||||
if (ioapic_in_kernel(vcpu->kvm))
|
||||
kvm_ioapic_scan_entry(vcpu, vcpu->arch.ioapic_handled_vectors);
|
||||
}
|
||||
else if (ioapic_in_kernel(vcpu->kvm))
|
||||
kvm_ioapic_scan_entry(vcpu, vcpu->arch.ioapic_handled_vectors);
|
||||
|
||||
if (is_guest_mode(vcpu))
|
||||
vcpu->arch.load_eoi_exitmap_pending = true;
|
||||
|
||||
@ -92,12 +92,22 @@ int __init efi_memmap_alloc(unsigned int num_entries,
|
||||
*/
|
||||
int __init efi_memmap_install(struct efi_memory_map_data *data)
|
||||
{
|
||||
unsigned long size = efi.memmap.desc_size * efi.memmap.nr_map;
|
||||
unsigned long flags = efi.memmap.flags;
|
||||
u64 phys = efi.memmap.phys_map;
|
||||
int ret;
|
||||
|
||||
efi_memmap_unmap();
|
||||
|
||||
if (efi_enabled(EFI_PARAVIRT))
|
||||
return 0;
|
||||
|
||||
return __efi_memmap_init(data);
|
||||
ret = __efi_memmap_init(data);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
__efi_memmap_free(phys, size, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -44,7 +44,6 @@ acpi_ex_system_memory_space_handler(u32 function,
|
||||
struct acpi_mem_mapping *mm = mem_info->cur_mm;
|
||||
u32 length;
|
||||
acpi_size map_length;
|
||||
acpi_size page_boundary_map_length;
|
||||
#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
|
||||
u32 remainder;
|
||||
#endif
|
||||
@ -138,26 +137,8 @@ acpi_ex_system_memory_space_handler(u32 function,
|
||||
map_length = (acpi_size)
|
||||
((mem_info->address + mem_info->length) - address);
|
||||
|
||||
/*
|
||||
* If mapping the entire remaining portion of the region will cross
|
||||
* a page boundary, just map up to the page boundary, do not cross.
|
||||
* On some systems, crossing a page boundary while mapping regions
|
||||
* can cause warnings if the pages have different attributes
|
||||
* due to resource management.
|
||||
*
|
||||
* This has the added benefit of constraining a single mapping to
|
||||
* one page, which is similar to the original code that used a 4k
|
||||
* maximum window.
|
||||
*/
|
||||
page_boundary_map_length = (acpi_size)
|
||||
(ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address);
|
||||
if (page_boundary_map_length == 0) {
|
||||
page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
|
||||
}
|
||||
|
||||
if (map_length > page_boundary_map_length) {
|
||||
map_length = page_boundary_map_length;
|
||||
}
|
||||
if (map_length > ACPI_DEFAULT_PAGE_SIZE)
|
||||
map_length = ACPI_DEFAULT_PAGE_SIZE;
|
||||
|
||||
/* Create a new mapping starting at the address given */
|
||||
|
||||
|
||||
@ -302,6 +302,10 @@ void acpi_mipi_check_crs_csi2(acpi_handle handle);
|
||||
void acpi_mipi_scan_crs_csi2(void);
|
||||
void acpi_mipi_init_crs_csi2_swnodes(void);
|
||||
void acpi_mipi_crs_csi2_cleanup(void);
|
||||
#ifdef CONFIG_X86
|
||||
bool acpi_graph_ignore_port(acpi_handle handle);
|
||||
#else
|
||||
static inline bool acpi_graph_ignore_port(acpi_handle handle) { return false; }
|
||||
#endif
|
||||
|
||||
#endif /* _ACPI_INTERNAL_H_ */
|
||||
|
||||
@ -725,14 +725,20 @@ void acpi_mipi_crs_csi2_cleanup(void)
|
||||
acpi_mipi_del_crs_csi2(csi2);
|
||||
}
|
||||
|
||||
static const struct dmi_system_id dmi_ignore_port_nodes[] = {
|
||||
{
|
||||
.matches = {
|
||||
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
||||
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "XPS 9315"),
|
||||
},
|
||||
},
|
||||
{ }
|
||||
#ifdef CONFIG_X86
|
||||
#include <asm/cpu_device_id.h>
|
||||
#include <asm/intel-family.h>
|
||||
|
||||
/* CPU matches for Dell generations with broken ACPI MIPI DISCO info */
|
||||
static const struct x86_cpu_id dell_broken_mipi_disco_cpu_gens[] = {
|
||||
X86_MATCH_VFM(INTEL_TIGERLAKE, NULL),
|
||||
X86_MATCH_VFM(INTEL_TIGERLAKE_L, NULL),
|
||||
X86_MATCH_VFM(INTEL_ALDERLAKE, NULL),
|
||||
X86_MATCH_VFM(INTEL_ALDERLAKE_L, NULL),
|
||||
X86_MATCH_VFM(INTEL_RAPTORLAKE, NULL),
|
||||
X86_MATCH_VFM(INTEL_RAPTORLAKE_P, NULL),
|
||||
X86_MATCH_VFM(INTEL_RAPTORLAKE_S, NULL),
|
||||
{}
|
||||
};
|
||||
|
||||
static const char *strnext(const char *s1, const char *s2)
|
||||
@ -761,7 +767,10 @@ bool acpi_graph_ignore_port(acpi_handle handle)
|
||||
static bool dmi_tested, ignore_port;
|
||||
|
||||
if (!dmi_tested) {
|
||||
ignore_port = dmi_first_match(dmi_ignore_port_nodes);
|
||||
if (dmi_name_in_vendors("Dell Inc.") &&
|
||||
x86_match_cpu(dell_broken_mipi_disco_cpu_gens))
|
||||
ignore_port = true;
|
||||
|
||||
dmi_tested = true;
|
||||
}
|
||||
|
||||
@ -794,3 +803,4 @@ out_free:
|
||||
kfree(orig_path);
|
||||
return false;
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -1735,6 +1735,14 @@ static void ahci_update_initial_lpm_policy(struct ata_port *ap)
|
||||
if (ap->pflags & ATA_PFLAG_EXTERNAL)
|
||||
return;
|
||||
|
||||
/* If no LPM states are supported by the HBA, do not bother with LPM */
|
||||
if ((ap->host->flags & ATA_HOST_NO_PART) &&
|
||||
(ap->host->flags & ATA_HOST_NO_SSC) &&
|
||||
(ap->host->flags & ATA_HOST_NO_DEVSLP)) {
|
||||
ata_port_dbg(ap, "no LPM states supported, not enabling LPM\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* user modified policy via module param */
|
||||
if (mobile_lpm_policy != -1) {
|
||||
policy = mobile_lpm_policy;
|
||||
@ -1967,8 +1975,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
|
||||
|
||||
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
|
||||
if (!host)
|
||||
return -ENOMEM;
|
||||
if (!host) {
|
||||
rc = -ENOMEM;
|
||||
goto err_rm_sysfs_file;
|
||||
}
|
||||
host->private_data = hpriv;
|
||||
|
||||
if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
|
||||
@ -2023,11 +2033,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
/* initialize adapter */
|
||||
rc = ahci_configure_dma_masks(pdev, hpriv);
|
||||
if (rc)
|
||||
return rc;
|
||||
goto err_rm_sysfs_file;
|
||||
|
||||
rc = ahci_pci_reset_controller(host);
|
||||
if (rc)
|
||||
return rc;
|
||||
goto err_rm_sysfs_file;
|
||||
|
||||
ahci_pci_init_controller(host);
|
||||
ahci_pci_print_info(host);
|
||||
@ -2036,10 +2046,15 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
|
||||
rc = ahci_host_activate(host, &ahci_sht);
|
||||
if (rc)
|
||||
return rc;
|
||||
goto err_rm_sysfs_file;
|
||||
|
||||
pm_runtime_put_noidle(&pdev->dev);
|
||||
return 0;
|
||||
|
||||
err_rm_sysfs_file:
|
||||
sysfs_remove_file_from_group(&pdev->dev.kobj,
|
||||
&dev_attr_remapped_nvme.attr, NULL);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void ahci_shutdown_one(struct pci_dev *pdev)
|
||||
|
||||
@ -4137,8 +4137,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
|
||||
{ "PIONEER BD-RW BDR-205", NULL, ATA_HORKAGE_NOLPM },
|
||||
|
||||
/* Crucial devices with broken LPM support */
|
||||
{ "CT500BX100SSD1", NULL, ATA_HORKAGE_NOLPM },
|
||||
{ "CT240BX500SSD1", NULL, ATA_HORKAGE_NOLPM },
|
||||
{ "CT*0BX*00SSD1", NULL, ATA_HORKAGE_NOLPM },
|
||||
|
||||
/* 512GB MX100 with MU01 firmware has both queued TRIM and LPM issues */
|
||||
{ "Crucial_CT512MX100*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM |
|
||||
@ -5490,6 +5489,18 @@ struct ata_port *ata_port_alloc(struct ata_host *host)
|
||||
return ap;
|
||||
}
|
||||
|
||||
void ata_port_free(struct ata_port *ap)
|
||||
{
|
||||
if (!ap)
|
||||
return;
|
||||
|
||||
kfree(ap->pmp_link);
|
||||
kfree(ap->slave_link);
|
||||
kfree(ap->ncq_sense_buf);
|
||||
kfree(ap);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(ata_port_free);
|
||||
|
||||
static void ata_devres_release(struct device *gendev, void *res)
|
||||
{
|
||||
struct ata_host *host = dev_get_drvdata(gendev);
|
||||
@ -5516,12 +5527,7 @@ static void ata_host_release(struct kref *kref)
|
||||
int i;
|
||||
|
||||
for (i = 0; i < host->n_ports; i++) {
|
||||
struct ata_port *ap = host->ports[i];
|
||||
|
||||
kfree(ap->pmp_link);
|
||||
kfree(ap->slave_link);
|
||||
kfree(ap->ncq_sense_buf);
|
||||
kfree(ap);
|
||||
ata_port_free(host->ports[i]);
|
||||
host->ports[i] = NULL;
|
||||
}
|
||||
kfree(host);
|
||||
@ -5571,8 +5577,10 @@ struct ata_host *ata_host_alloc(struct device *dev, int max_ports)
|
||||
if (!host)
|
||||
return NULL;
|
||||
|
||||
if (!devres_open_group(dev, NULL, GFP_KERNEL))
|
||||
goto err_free;
|
||||
if (!devres_open_group(dev, NULL, GFP_KERNEL)) {
|
||||
kfree(host);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
dr = devres_alloc(ata_devres_release, 0, GFP_KERNEL);
|
||||
if (!dr)
|
||||
@ -5604,8 +5612,6 @@ struct ata_host *ata_host_alloc(struct device *dev, int max_ports)
|
||||
|
||||
err_out:
|
||||
devres_release_group(dev, NULL);
|
||||
err_free:
|
||||
kfree(host);
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(ata_host_alloc);
|
||||
@ -5904,7 +5910,7 @@ int ata_host_register(struct ata_host *host, const struct scsi_host_template *sh
|
||||
* allocation time.
|
||||
*/
|
||||
for (i = host->n_ports; host->ports[i]; i++)
|
||||
kfree(host->ports[i]);
|
||||
ata_port_free(host->ports[i]);
|
||||
|
||||
/* give ports names and add SCSI hosts */
|
||||
for (i = 0; i < host->n_ports; i++) {
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
*/
|
||||
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/counter.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mod_devicetable.h>
|
||||
@ -376,6 +377,7 @@ static int ti_eqep_probe(struct platform_device *pdev)
|
||||
struct counter_device *counter;
|
||||
struct ti_eqep_cnt *priv;
|
||||
void __iomem *base;
|
||||
struct clk *clk;
|
||||
int err;
|
||||
|
||||
counter = devm_counter_alloc(dev, sizeof(*priv));
|
||||
@ -415,6 +417,10 @@ static int ti_eqep_probe(struct platform_device *pdev)
|
||||
pm_runtime_enable(dev);
|
||||
pm_runtime_get_sync(dev);
|
||||
|
||||
clk = devm_clk_get_enabled(dev, NULL);
|
||||
if (IS_ERR(clk))
|
||||
return dev_err_probe(dev, PTR_ERR(clk), "failed to enable clock\n");
|
||||
|
||||
err = counter_add(counter);
|
||||
if (err < 0) {
|
||||
pm_runtime_put_sync(dev);
|
||||
|
||||
@ -355,15 +355,14 @@ static void intel_pstate_set_itmt_prio(int cpu)
|
||||
int ret;
|
||||
|
||||
ret = cppc_get_perf_caps(cpu, &cppc_perf);
|
||||
if (ret)
|
||||
return;
|
||||
|
||||
/*
|
||||
* On some systems with overclocking enabled, CPPC.highest_perf is hardcoded to 0xff.
|
||||
* In this case we can't use CPPC.highest_perf to enable ITMT.
|
||||
* In this case we can look at MSR_HWP_CAPABILITIES bits [8:0] to decide.
|
||||
* If CPPC is not available, fall back to MSR_HWP_CAPABILITIES bits [8:0].
|
||||
*
|
||||
* Also, on some systems with overclocking enabled, CPPC.highest_perf is
|
||||
* hardcoded to 0xff, so CPPC.highest_perf cannot be used to enable ITMT.
|
||||
* Fall back to MSR_HWP_CAPABILITIES then too.
|
||||
*/
|
||||
if (cppc_perf.highest_perf == CPPC_MAX_PERF)
|
||||
if (ret || cppc_perf.highest_perf == CPPC_MAX_PERF)
|
||||
cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached));
|
||||
|
||||
/*
|
||||
|
||||
@ -39,7 +39,8 @@ intel_qat-objs := adf_cfg.o \
|
||||
adf_sysfs_rl.o \
|
||||
qat_uclo.o \
|
||||
qat_hal.o \
|
||||
qat_bl.o
|
||||
qat_bl.o \
|
||||
qat_mig_dev.o
|
||||
|
||||
intel_qat-$(CONFIG_DEBUG_FS) += adf_transport_debug.o \
|
||||
adf_fw_counters.o \
|
||||
@ -56,6 +57,6 @@ intel_qat-$(CONFIG_DEBUG_FS) += adf_transport_debug.o \
|
||||
intel_qat-$(CONFIG_PCI_IOV) += adf_sriov.o adf_vf_isr.o adf_pfvf_utils.o \
|
||||
adf_pfvf_pf_msg.o adf_pfvf_pf_proto.o \
|
||||
adf_pfvf_vf_msg.o adf_pfvf_vf_proto.o \
|
||||
adf_gen2_pfvf.o adf_gen4_pfvf.o qat_mig_dev.o
|
||||
adf_gen2_pfvf.o adf_gen4_pfvf.o
|
||||
|
||||
intel_qat-$(CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION) += adf_heartbeat_inject.o
|
||||
|
||||
@ -394,7 +394,7 @@ config LS2X_APB_DMA
|
||||
|
||||
config MCF_EDMA
|
||||
tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs"
|
||||
depends on M5441x || COMPILE_TEST
|
||||
depends on M5441x || (COMPILE_TEST && FSL_EDMA=n)
|
||||
select DMA_ENGINE
|
||||
select DMA_VIRTUAL_CHANNELS
|
||||
help
|
||||
|
||||
@ -611,11 +611,13 @@ static void irq_process_work_list(struct idxd_irq_entry *irq_entry)
|
||||
|
||||
spin_unlock(&irq_entry->list_lock);
|
||||
|
||||
list_for_each_entry(desc, &flist, list) {
|
||||
list_for_each_entry_safe(desc, n, &flist, list) {
|
||||
/*
|
||||
* Check against the original status as ABORT is software defined
|
||||
* and 0xff, which DSA_COMP_STATUS_MASK can mask out.
|
||||
*/
|
||||
list_del(&desc->list);
|
||||
|
||||
if (unlikely(desc->completion->status == IDXD_COMP_DESC_ABORT)) {
|
||||
idxd_desc_complete(desc, IDXD_COMPLETE_ABORT, true);
|
||||
continue;
|
||||
|
||||
@ -534,18 +534,6 @@ err_out:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int ioat_register(struct ioatdma_device *ioat_dma)
|
||||
{
|
||||
int err = dma_async_device_register(&ioat_dma->dma_dev);
|
||||
|
||||
if (err) {
|
||||
ioat_disable_interrupts(ioat_dma);
|
||||
dma_pool_destroy(ioat_dma->completion_pool);
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static void ioat_dma_remove(struct ioatdma_device *ioat_dma)
|
||||
{
|
||||
struct dma_device *dma = &ioat_dma->dma_dev;
|
||||
@ -1181,9 +1169,9 @@ static int ioat3_dma_probe(struct ioatdma_device *ioat_dma, int dca)
|
||||
ioat_chan->reg_base + IOAT_DCACTRL_OFFSET);
|
||||
}
|
||||
|
||||
err = ioat_register(ioat_dma);
|
||||
err = dma_async_device_register(&ioat_dma->dma_dev);
|
||||
if (err)
|
||||
return err;
|
||||
goto err_disable_interrupts;
|
||||
|
||||
ioat_kobject_add(ioat_dma, &ioat_ktype);
|
||||
|
||||
@ -1192,20 +1180,29 @@ static int ioat3_dma_probe(struct ioatdma_device *ioat_dma, int dca)
|
||||
|
||||
/* disable relaxed ordering */
|
||||
err = pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &val16);
|
||||
if (err)
|
||||
return pcibios_err_to_errno(err);
|
||||
if (err) {
|
||||
err = pcibios_err_to_errno(err);
|
||||
goto err_disable_interrupts;
|
||||
}
|
||||
|
||||
/* clear relaxed ordering enable */
|
||||
val16 &= ~PCI_EXP_DEVCTL_RELAX_EN;
|
||||
err = pcie_capability_write_word(pdev, PCI_EXP_DEVCTL, val16);
|
||||
if (err)
|
||||
return pcibios_err_to_errno(err);
|
||||
if (err) {
|
||||
err = pcibios_err_to_errno(err);
|
||||
goto err_disable_interrupts;
|
||||
}
|
||||
|
||||
if (ioat_dma->cap & IOAT_CAP_DPS)
|
||||
writeb(ioat_pending_level + 1,
|
||||
ioat_dma->reg_base + IOAT_PREFETCH_LIMIT_OFFSET);
|
||||
|
||||
return 0;
|
||||
|
||||
err_disable_interrupts:
|
||||
ioat_disable_interrupts(ioat_dma);
|
||||
dma_pool_destroy(ioat_dma->completion_pool);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void ioat_shutdown(struct pci_dev *pdev)
|
||||
@ -1350,6 +1347,8 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
void __iomem * const *iomap;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct ioatdma_device *device;
|
||||
unsigned int i;
|
||||
u8 version;
|
||||
int err;
|
||||
|
||||
err = pcim_enable_device(pdev);
|
||||
@ -1363,6 +1362,10 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
if (!iomap)
|
||||
return -ENOMEM;
|
||||
|
||||
version = readb(iomap[IOAT_MMIO_BAR] + IOAT_VER_OFFSET);
|
||||
if (version < IOAT_VER_3_0)
|
||||
return -ENODEV;
|
||||
|
||||
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
|
||||
if (err)
|
||||
return err;
|
||||
@ -1373,17 +1376,18 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
pci_set_master(pdev);
|
||||
pci_set_drvdata(pdev, device);
|
||||
|
||||
device->version = readb(device->reg_base + IOAT_VER_OFFSET);
|
||||
device->version = version;
|
||||
if (device->version >= IOAT_VER_3_4)
|
||||
ioat_dca_enabled = 0;
|
||||
if (device->version >= IOAT_VER_3_0) {
|
||||
if (is_skx_ioat(pdev))
|
||||
device->version = IOAT_VER_3_2;
|
||||
err = ioat3_dma_probe(device, ioat_dca_enabled);
|
||||
} else
|
||||
return -ENODEV;
|
||||
|
||||
if (is_skx_ioat(pdev))
|
||||
device->version = IOAT_VER_3_2;
|
||||
|
||||
err = ioat3_dma_probe(device, ioat_dca_enabled);
|
||||
if (err) {
|
||||
for (i = 0; i < IOAT_MAX_CHANS; i++)
|
||||
kfree(device->idx[i]);
|
||||
kfree(device);
|
||||
dev_err(dev, "Intel(R) I/OAT DMA Engine init failed\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
@ -1445,6 +1449,7 @@ module_init(ioat_init_module);
|
||||
static void __exit ioat_exit_module(void)
|
||||
{
|
||||
pci_unregister_driver(&ioat_pci_driver);
|
||||
kmem_cache_destroy(ioat_sed_cache);
|
||||
kmem_cache_destroy(ioat_cache);
|
||||
}
|
||||
module_exit(ioat_exit_module);
|
||||
|
||||
@ -200,12 +200,9 @@ of_k3_udma_glue_parse_chn_by_id(struct device_node *udmax_np, struct k3_udma_glu
|
||||
|
||||
ret = of_k3_udma_glue_parse(udmax_np, common);
|
||||
if (ret)
|
||||
goto out_put_spec;
|
||||
return ret;
|
||||
|
||||
ret = of_k3_udma_glue_parse_chn_common(common, thread_id, tx_chn);
|
||||
|
||||
out_put_spec:
|
||||
of_node_put(udmax_np);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
@ -885,11 +885,11 @@ static irqreturn_t xdma_channel_isr(int irq, void *dev_id)
|
||||
u32 st;
|
||||
bool repeat_tx;
|
||||
|
||||
spin_lock(&xchan->vchan.lock);
|
||||
|
||||
if (xchan->stop_requested)
|
||||
complete(&xchan->last_interrupt);
|
||||
|
||||
spin_lock(&xchan->vchan.lock);
|
||||
|
||||
/* get submitted request */
|
||||
vd = vchan_next_desc(&xchan->vchan);
|
||||
if (!vd)
|
||||
|
||||
@ -15,10 +15,6 @@
|
||||
#include <asm/early_ioremap.h>
|
||||
#include <asm/efi.h>
|
||||
|
||||
#ifndef __efi_memmap_free
|
||||
#define __efi_memmap_free(phys, size, flags) do { } while (0)
|
||||
#endif
|
||||
|
||||
/**
|
||||
* __efi_memmap_init - Common code for mapping the EFI memory map
|
||||
* @data: EFI memory map data
|
||||
@ -51,11 +47,6 @@ int __init __efi_memmap_init(struct efi_memory_map_data *data)
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (efi.memmap.flags & (EFI_MEMMAP_MEMBLOCK | EFI_MEMMAP_SLAB))
|
||||
__efi_memmap_free(efi.memmap.phys_map,
|
||||
efi.memmap.desc_size * efi.memmap.nr_map,
|
||||
efi.memmap.flags);
|
||||
|
||||
map.phys_map = data->phys_map;
|
||||
map.nr_map = data->size / data->desc_size;
|
||||
map.map_end = map.map + data->size;
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user