mirror of
https://github.com/torvalds/linux.git
synced 2024-11-21 19:41:42 +00:00
LoongArch KVM changes for v6.11
1. Add ParaVirt steal time support. 2. Add some VM migration enhancement. 3. Add perf kvm-stat support for loongarch. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmaOS6UWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImehejD/9pACGe3h3krXLcFVWXOFIu5Hpc 5kQLP0lSPJ/o5Xs8t/oPLrnDX70z90wXI1LOmltc7h32MSwFa2l8COQh+sN5eJBQ PNyt7u7bMipp0yJS4Gl3LQQ5vklcGOSpQc/gbeXnVx8J/tz+Mo9YGGLIXVRXRM6W Ri8D2VVFiwzQQYeTpPo1u1Ob8C6mA4KOppwvhscMTM3vj4NMbsinBzRnR0lG0Tdw meFhxDPly1Ksxsbnj9UGO6UnEY0A2SLONs6MiO4y4DtoqoDlw/lbqFJuYo4vvbx1 pxtjyirD/PX/wjslQFWUOuU0hMfAodera+JupZ5BZWfcG8FltA4DQfDsm/U9RjK/ 7gGNnr8Xk2/tp6+4AVV+HU2iTgRvq+mXCL72zSy2Y4r7ElBAANDfk4n+Zn/PWisn U9wwV8Ue7tVB15BRpRsg77NzBidiCFEe/6flWYiX2y24ke71gwDJBGUy8hMdKt6t 4Cq8atsU0MvDAzfYMsK9JjskJp4UFq6wb1tXbbuADM4TDhnzlK6s6h3vM+pFlh/f my7fDH8/2qsCWhBDM4pmsJskVp+I1GOk/80RjTQISwx7iHktJWvxNYTaisK2fvD5 Qs1IUWfNFbDX0Lr0QpN6j6X4rZkghR4R6XoFkd4nkicwi+UHVn3oK9GSqv24QJn9 7+Ev3dfRTUYLd6mC4Q== =DpIK -----END PGP SIGNATURE----- Merge tag 'loongarch-kvm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD LoongArch KVM changes for v6.11 1. Add ParaVirt steal time support. 2. Add some VM migration enhancement. 3. Add perf kvm-stat support for loongarch.
This commit is contained in:
Paolo Bonzini
commit
c8b8b8190a
@ -5,7 +5,6 @@ root = true
|
||||
[{*.{awk,c,dts,dtsi,dtso,h,mk,s,S},Kconfig,Makefile,Makefile.*}]
|
||||
charset = utf-8
|
||||
end_of_line = lf
|
||||
trim_trailing_whitespace = true
|
||||
insert_final_newline = true
|
||||
indent_style = tab
|
||||
indent_size = 8
|
||||
@ -13,7 +12,6 @@ indent_size = 8
|
||||
[*.{json,py,rs}]
|
||||
charset = utf-8
|
||||
end_of_line = lf
|
||||
trim_trailing_whitespace = true
|
||||
insert_final_newline = true
|
||||
indent_style = space
|
||||
indent_size = 4
|
||||
@ -26,7 +24,6 @@ indent_size = 8
|
||||
[*.yaml]
|
||||
charset = utf-8
|
||||
end_of_line = lf
|
||||
trim_trailing_whitespace = unset
|
||||
insert_final_newline = true
|
||||
indent_style = space
|
||||
indent_size = 2
|
||||
|
||||
4
.mailmap
4
.mailmap
@ -72,6 +72,8 @@ Andrey Ryabinin <ryabinin.a.a@gmail.com> <aryabinin@virtuozzo.com>
|
||||
Andrzej Hajda <andrzej.hajda@intel.com> <a.hajda@samsung.com>
|
||||
André Almeida <andrealmeid@igalia.com> <andrealmeid@collabora.com>
|
||||
Andy Adamson <andros@citi.umich.edu>
|
||||
Andy Shevchenko <andy@kernel.org> <andy@smile.org.ua>
|
||||
Andy Shevchenko <andy@kernel.org> <ext-andriy.shevchenko@nokia.com>
|
||||
Anilkumar Kolli <quic_akolli@quicinc.com> <akolli@codeaurora.org>
|
||||
Anirudh Ghayal <quic_aghayal@quicinc.com> <aghayal@codeaurora.org>
|
||||
Antoine Tenart <atenart@kernel.org> <antoine.tenart@bootlin.com>
|
||||
@ -217,6 +219,7 @@ Geliang Tang <geliang@kernel.org> <geliang.tang@suse.com>
|
||||
Geliang Tang <geliang@kernel.org> <geliangtang@xiaomi.com>
|
||||
Geliang Tang <geliang@kernel.org> <geliangtang@gmail.com>
|
||||
Geliang Tang <geliang@kernel.org> <geliangtang@163.com>
|
||||
Geliang Tang <geliang@kernel.org> <tanggeliang@kylinos.cn>
|
||||
Georgi Djakov <djakov@kernel.org> <georgi.djakov@linaro.org>
|
||||
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
|
||||
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>
|
||||
@ -605,6 +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>
|
||||
|
||||
8
CREDITS
8
CREDITS
@ -1214,6 +1214,10 @@ D: UDF filesystem
|
||||
S: (ask for current address)
|
||||
S: USA
|
||||
|
||||
N: Larry Finger
|
||||
E: Larry.Finger@lwfinger.net
|
||||
D: Maintainer of wireless drivers, too many to list here
|
||||
|
||||
N: Jürgen Fischer
|
||||
E: fischer@norbit.de
|
||||
D: Author of Adaptec AHA-152x SCSI driver
|
||||
@ -3146,9 +3150,11 @@ S: Triftstra=DFe 55
|
||||
S: 13353 Berlin
|
||||
S: Germany
|
||||
|
||||
N: Gustavo Pimental
|
||||
N: Gustavo Pimentel
|
||||
E: gustavo.pimentel@synopsys.com
|
||||
D: PCI driver for Synopsys DesignWare
|
||||
D: Synopsys DesignWare eDMA driver
|
||||
D: Synopsys DesignWare xData traffic generator
|
||||
|
||||
N: Emanuel Pirker
|
||||
E: epirker@edu.uni-klu.ac.at
|
||||
|
||||
@ -9,8 +9,8 @@ TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
|
||||
|
||||
LiveCD-based tutorials are available at
|
||||
|
||||
http://tomoyo.sourceforge.jp/1.8/ubuntu12.04-live.html
|
||||
http://tomoyo.sourceforge.jp/1.8/centos6-live.html
|
||||
https://tomoyo.sourceforge.net/1.8/ubuntu12.04-live.html
|
||||
https://tomoyo.sourceforge.net/1.8/centos6-live.html
|
||||
|
||||
Though these tutorials use non-LSM version of TOMOYO, they are useful for you
|
||||
to know what TOMOYO is.
|
||||
@ -21,45 +21,32 @@ How to enable TOMOYO?
|
||||
Build the kernel with ``CONFIG_SECURITY_TOMOYO=y`` and pass ``security=tomoyo`` on
|
||||
kernel's command line.
|
||||
|
||||
Please see http://tomoyo.osdn.jp/2.5/ for details.
|
||||
Please see https://tomoyo.sourceforge.net/2.6/ for details.
|
||||
|
||||
Where is documentation?
|
||||
=======================
|
||||
|
||||
User <-> Kernel interface documentation is available at
|
||||
https://tomoyo.osdn.jp/2.5/policy-specification/index.html .
|
||||
https://tomoyo.sourceforge.net/2.6/policy-specification/index.html .
|
||||
|
||||
Materials we prepared for seminars and symposiums are available at
|
||||
https://osdn.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/ .
|
||||
Below lists are chosen from three aspects.
|
||||
|
||||
What is TOMOYO?
|
||||
TOMOYO Linux Overview
|
||||
https://osdn.jp/projects/tomoyo/docs/lca2009-takeda.pdf
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/lca2009-takeda.pdf
|
||||
TOMOYO Linux: pragmatic and manageable security for Linux
|
||||
https://osdn.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/freedomhectaipei-tomoyo.pdf
|
||||
TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
|
||||
https://osdn.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/PacSec2007-en-no-demo.pdf
|
||||
|
||||
What can TOMOYO do?
|
||||
Deep inside TOMOYO Linux
|
||||
https://osdn.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/lca2009-kumaneko.pdf
|
||||
The role of "pathname based access control" in security.
|
||||
https://osdn.jp/projects/tomoyo/docs/lfj2008-bof.pdf
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/lfj2008-bof.pdf
|
||||
|
||||
History of TOMOYO?
|
||||
Realities of Mainlining
|
||||
https://osdn.jp/projects/tomoyo/docs/lfj2008.pdf
|
||||
|
||||
What is future plan?
|
||||
====================
|
||||
|
||||
We believe that inode based security and name based security are complementary
|
||||
and both should be used together. But unfortunately, so far, we cannot enable
|
||||
multiple LSM modules at the same time. We feel sorry that you have to give up
|
||||
SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
|
||||
|
||||
We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
|
||||
version of TOMOYO, available at http://tomoyo.osdn.jp/1.8/ .
|
||||
LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
|
||||
to port non-LSM version's functionalities to LSM versions.
|
||||
https://sourceforge.net/projects/tomoyo/files/docs/lfj2008.pdf
|
||||
|
||||
@ -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
|
||||
@ -4098,9 +4073,9 @@
|
||||
prediction) vulnerability. System may allow data
|
||||
leaks with this option.
|
||||
|
||||
no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES,RISCV,EARLY] Disable
|
||||
paravirtualized steal time accounting. steal time is
|
||||
computed, but won't influence scheduler behaviour
|
||||
no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES,RISCV,LOONGARCH,EARLY]
|
||||
Disable paravirtualized steal time accounting. steal time
|
||||
is computed, but won't influence scheduler behaviour
|
||||
|
||||
nosync [HW,M68K] Disables sync negotiation for all devices.
|
||||
|
||||
|
||||
@ -467,11 +467,11 @@ anon_fault_fallback_charge
|
||||
instead falls back to using huge pages with lower orders or
|
||||
small pages even though the allocation was successful.
|
||||
|
||||
anon_swpout
|
||||
swpout
|
||||
is incremented every time a huge page is swapped out in one
|
||||
piece without splitting.
|
||||
|
||||
anon_swpout_fallback
|
||||
swpout_fallback
|
||||
is incremented if a huge page has to be split before swapout.
|
||||
Usually because failed to allocate some continuous swap space
|
||||
for the huge page.
|
||||
|
||||
@ -62,10 +62,10 @@ cmodx.c::
|
||||
printf("Value before cmodx: %d\n", value);
|
||||
|
||||
// Call prctl before first fence.i is called inside modify_instruction
|
||||
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX_ON, PR_RISCV_CTX_SW_FENCEI, PR_RISCV_SCOPE_PER_PROCESS);
|
||||
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_ON, PR_RISCV_SCOPE_PER_PROCESS);
|
||||
modify_instruction();
|
||||
// Call prctl after final fence.i is called in process
|
||||
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX_OFF, PR_RISCV_CTX_SW_FENCEI, PR_RISCV_SCOPE_PER_PROCESS);
|
||||
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_OFF, PR_RISCV_SCOPE_PER_PROCESS);
|
||||
|
||||
value = get_value();
|
||||
printf("Value after cmodx: %d\n", value);
|
||||
|
||||
@ -217,7 +217,7 @@ current *struct* is::
|
||||
int (*media_changed)(struct cdrom_device_info *, int);
|
||||
int (*tray_move)(struct cdrom_device_info *, int);
|
||||
int (*lock_door)(struct cdrom_device_info *, int);
|
||||
int (*select_speed)(struct cdrom_device_info *, int);
|
||||
int (*select_speed)(struct cdrom_device_info *, unsigned long);
|
||||
int (*get_last_session) (struct cdrom_device_info *,
|
||||
struct cdrom_multisession *);
|
||||
int (*get_mcn)(struct cdrom_device_info *, struct cdrom_mcn *);
|
||||
@ -396,7 +396,7 @@ action need be taken, and the return value should be 0.
|
||||
|
||||
::
|
||||
|
||||
int select_speed(struct cdrom_device_info *cdi, int speed)
|
||||
int select_speed(struct cdrom_device_info *cdi, unsigned long speed)
|
||||
|
||||
Some CD-ROM drives are capable of changing their head-speed. There
|
||||
are several reasons for changing the speed of a CD-ROM drive. Badly
|
||||
|
||||
@ -54,11 +54,10 @@ unevaluatedProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
mlahb: ahb@38000000 {
|
||||
ahb {
|
||||
compatible = "st,mlahb", "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = <0x10000000 0x40000>;
|
||||
ranges;
|
||||
dma-ranges = <0x00000000 0x38000000 0x10000>,
|
||||
<0x10000000 0x10000000 0x60000>,
|
||||
|
||||
@ -57,17 +57,17 @@ properties:
|
||||
- const: allwinner,sun8i-v3s
|
||||
|
||||
- description: Anbernic RG35XX (2024)
|
||||
- items:
|
||||
items:
|
||||
- const: anbernic,rg35xx-2024
|
||||
- const: allwinner,sun50i-h700
|
||||
|
||||
- description: Anbernic RG35XX Plus
|
||||
- items:
|
||||
items:
|
||||
- const: anbernic,rg35xx-plus
|
||||
- const: allwinner,sun50i-h700
|
||||
|
||||
- description: Anbernic RG35XX H
|
||||
- items:
|
||||
items:
|
||||
- const: anbernic,rg35xx-h
|
||||
- const: allwinner,sun50i-h700
|
||||
|
||||
|
||||
@ -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:
|
||||
|
||||
@ -139,7 +139,7 @@ allOf:
|
||||
Voltage output range of the channel as <minimum, maximum>
|
||||
Required connections:
|
||||
Rfb1x for: 0 to 2.5 V; 0 to 3V; 0 to 5 V;
|
||||
Rfb2x for: 0 to 10 V; 2.5 to 7.5V; -5 to 5 V;
|
||||
Rfb2x for: 0 to 10 V; -2.5 to 7.5V; -5 to 5 V;
|
||||
oneOf:
|
||||
- items:
|
||||
- const: 0
|
||||
|
||||
@ -18,9 +18,12 @@ allOf:
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
enum:
|
||||
- elan,ekth6915
|
||||
- ilitek,ili2901
|
||||
oneOf:
|
||||
- items:
|
||||
- enum:
|
||||
- elan,ekth5015m
|
||||
- const: elan,ekth6915
|
||||
- const: elan,ekth6915
|
||||
|
||||
reg:
|
||||
const: 0x10
|
||||
@ -33,6 +36,12 @@ properties:
|
||||
reset-gpios:
|
||||
description: Reset GPIO; not all touchscreens using eKTH6915 hook this up.
|
||||
|
||||
no-reset-on-power-off:
|
||||
type: boolean
|
||||
description:
|
||||
Reset line is wired so that it can (and should) be left deasserted when
|
||||
the power supply is off.
|
||||
|
||||
vcc33-supply:
|
||||
description: The 3.3V supply to the touchscreen.
|
||||
|
||||
@ -58,8 +67,8 @@ examples:
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
ap_ts: touchscreen@10 {
|
||||
compatible = "elan,ekth6915";
|
||||
touchscreen@10 {
|
||||
compatible = "elan,ekth5015m", "elan,ekth6915";
|
||||
reg = <0x10>;
|
||||
|
||||
interrupt-parent = <&tlmm>;
|
||||
|
||||
66
Documentation/devicetree/bindings/input/ilitek,ili2901.yaml
Normal file
66
Documentation/devicetree/bindings/input/ilitek,ili2901.yaml
Normal file
@ -0,0 +1,66 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/input/ilitek,ili2901.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Ilitek ILI2901 touchscreen controller
|
||||
|
||||
maintainers:
|
||||
- Jiri Kosina <jkosina@suse.com>
|
||||
|
||||
description:
|
||||
Supports the Ilitek ILI2901 touchscreen controller.
|
||||
This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
|
||||
|
||||
allOf:
|
||||
- $ref: /schemas/input/touchscreen/touchscreen.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
enum:
|
||||
- ilitek,ili2901
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
||||
interrupts:
|
||||
maxItems: 1
|
||||
|
||||
panel: true
|
||||
|
||||
reset-gpios:
|
||||
maxItems: 1
|
||||
|
||||
vcc33-supply: true
|
||||
|
||||
vccio-supply: true
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- interrupts
|
||||
- vcc33-supply
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
#include <dt-bindings/interrupt-controller/irq.h>
|
||||
|
||||
i2c {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
touchscreen@41 {
|
||||
compatible = "ilitek,ili2901";
|
||||
reg = <0x41>;
|
||||
|
||||
interrupt-parent = <&tlmm>;
|
||||
interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
|
||||
|
||||
reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
|
||||
vcc33-supply = <&pp3300_ts>;
|
||||
};
|
||||
};
|
||||
@ -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
|
||||
|
||||
@ -65,6 +65,7 @@ patternProperties:
|
||||
description: The hard wired USB devices
|
||||
type: object
|
||||
$ref: /schemas/usb/usb-device.yaml
|
||||
additionalProperties: true
|
||||
|
||||
required:
|
||||
- peer-hub
|
||||
|
||||
@ -328,6 +328,12 @@ CXL Memory Device
|
||||
.. kernel-doc:: drivers/cxl/mem.c
|
||||
:doc: cxl mem
|
||||
|
||||
.. kernel-doc:: drivers/cxl/cxlmem.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: drivers/cxl/core/memdev.c
|
||||
:identifiers:
|
||||
|
||||
CXL Port
|
||||
--------
|
||||
.. kernel-doc:: drivers/cxl/port.c
|
||||
@ -341,6 +347,15 @@ CXL Core
|
||||
.. kernel-doc:: drivers/cxl/cxl.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: drivers/cxl/core/hdm.c
|
||||
:doc: cxl core hdm
|
||||
|
||||
.. kernel-doc:: drivers/cxl/core/hdm.c
|
||||
:identifiers:
|
||||
|
||||
.. kernel-doc:: drivers/cxl/core/cdat.c
|
||||
:identifiers:
|
||||
|
||||
.. kernel-doc:: drivers/cxl/core/port.c
|
||||
:doc: cxl core
|
||||
|
||||
|
||||
@ -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 |
@ -3,19 +3,17 @@ 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,
|
||||
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
|
||||
@ -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.
|
||||
|
||||
@ -150,6 +150,12 @@ applicable everywhere (see syntax).
|
||||
That will limit the usefulness but on the other hand avoid
|
||||
the illegal configurations all over.
|
||||
|
||||
If "select" <symbol> is followed by "if" <expr>, <symbol> will be
|
||||
selected by the logical AND of the value of the current menu symbol
|
||||
and <expr>. This means, the lower limit can be downgraded due to the
|
||||
presence of "if" <expr>. This behavior may seem weird, but we rely on
|
||||
it. (The future of this behavior is undecided.)
|
||||
|
||||
- weak reverse dependencies: "imply" <symbol> ["if" <expr>]
|
||||
|
||||
This is similar to "select" as it enforces a lower limit on another
|
||||
@ -184,7 +190,7 @@ applicable everywhere (see syntax).
|
||||
ability to hook into a secondary subsystem while allowing the user to
|
||||
configure that subsystem out without also having to unset these drivers.
|
||||
|
||||
Note: If the combination of FOO=y and BAR=m causes a link error,
|
||||
Note: If the combination of FOO=y and BAZ=m causes a link error,
|
||||
you can guard the function call with IS_REACHABLE()::
|
||||
|
||||
foo_init()
|
||||
@ -202,6 +208,10 @@ applicable everywhere (see syntax).
|
||||
imply BAR
|
||||
imply BAZ
|
||||
|
||||
Note: If "imply" <symbol> is followed by "if" <expr>, the default of <symbol>
|
||||
will be the logical AND of the value of the current menu symbol and <expr>.
|
||||
(The future of this behavior is undecided.)
|
||||
|
||||
- limiting menu display: "visible if" <expr>
|
||||
|
||||
This attribute is only applicable to menu blocks, if the condition is
|
||||
|
||||
@ -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
|
||||
|
||||
@ -329,24 +329,23 @@ XDP_SHARED_UMEM option and provide the initial socket's fd in the
|
||||
sxdp_shared_umem_fd field as you registered the UMEM on that
|
||||
socket. These two sockets will now share one and the same UMEM.
|
||||
|
||||
In this case, it is possible to use the NIC's packet steering
|
||||
capabilities to steer the packets to the right queue. This is not
|
||||
possible in the previous example as there is only one queue shared
|
||||
among sockets, so the NIC cannot do this steering as it can only steer
|
||||
between queues.
|
||||
There is no need to supply an XDP program like the one in the previous
|
||||
case where sockets were bound to the same queue id and
|
||||
device. Instead, use the NIC's packet steering capabilities to steer
|
||||
the packets to the right queue. In the previous example, there is only
|
||||
one queue shared among sockets, so the NIC cannot do this steering. It
|
||||
can only steer between queues.
|
||||
|
||||
In libxdp (or libbpf prior to version 1.0), you need to use the
|
||||
xsk_socket__create_shared() API as it takes a reference to a FILL ring
|
||||
and a COMPLETION ring that will be created for you and bound to the
|
||||
shared UMEM. You can use this function for all the sockets you create,
|
||||
or you can use it for the second and following ones and use
|
||||
xsk_socket__create() for the first one. Both methods yield the same
|
||||
result.
|
||||
In libbpf, you need to use the xsk_socket__create_shared() API as it
|
||||
takes a reference to a FILL ring and a COMPLETION ring that will be
|
||||
created for you and bound to the shared UMEM. You can use this
|
||||
function for all the sockets you create, or you can use it for the
|
||||
second and following ones and use xsk_socket__create() for the first
|
||||
one. Both methods yield the same result.
|
||||
|
||||
Note that a UMEM can be shared between sockets on the same queue id
|
||||
and device, as well as between queues on the same device and between
|
||||
devices at the same time. It is also possible to redirect to any
|
||||
socket as long as it is bound to the same umem with XDP_SHARED_UMEM.
|
||||
devices at the same time.
|
||||
|
||||
XDP_USE_NEED_WAKEUP bind flag
|
||||
-----------------------------
|
||||
@ -823,10 +822,6 @@ A: The short answer is no, that is not supported at the moment. The
|
||||
switch, or other distribution mechanism, in your NIC to direct
|
||||
traffic to the correct queue id and socket.
|
||||
|
||||
Note that if you are using the XDP_SHARED_UMEM option, it is
|
||||
possible to switch traffic between any socket bound to the same
|
||||
umem.
|
||||
|
||||
Q: My packets are sometimes corrupted. What is wrong?
|
||||
|
||||
A: Care has to be taken not to feed the same buffer in the UMEM into
|
||||
|
||||
@ -32,6 +32,7 @@ Security-related interfaces
|
||||
seccomp_filter
|
||||
landlock
|
||||
lsm
|
||||
mfd_noexec
|
||||
spec_ctrl
|
||||
tee
|
||||
|
||||
|
||||
@ -186,6 +186,7 @@ Code Seq# Include File Comments
|
||||
'Q' all linux/soundcard.h
|
||||
'R' 00-1F linux/random.h conflict!
|
||||
'R' 01 linux/rfkill.h conflict!
|
||||
'R' 20-2F linux/trace_mmap.h
|
||||
'R' C0-DF net/bluetooth/rfcomm.h
|
||||
'R' E0 uapi/linux/fsl_mc.h
|
||||
'S' all linux/cdrom.h conflict!
|
||||
|
||||
@ -582,7 +582,7 @@ depending on the hardware. In all cases, however, only routes that have the
|
||||
Devices generating the streams may allow enabling and disabling some of the
|
||||
routes or have a fixed routing configuration. If the routes can be disabled, not
|
||||
declaring the routes (or declaring them without
|
||||
``VIDIOC_SUBDEV_STREAM_FL_ACTIVE`` flag set) in ``VIDIOC_SUBDEV_S_ROUTING`` will
|
||||
``V4L2_SUBDEV_STREAM_FL_ACTIVE`` flag set) in ``VIDIOC_SUBDEV_S_ROUTING`` will
|
||||
disable the routes. ``VIDIOC_SUBDEV_S_ROUTING`` will still return such routes
|
||||
back to the user in the routes array, with the ``V4L2_SUBDEV_STREAM_FL_ACTIVE``
|
||||
flag unset.
|
||||
|
||||
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.
|
||||
|
||||
|
||||
72
MAINTAINERS
72
MAINTAINERS
@ -1044,7 +1044,7 @@ 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
|
||||
|
||||
@ -1107,7 +1107,6 @@ L: linux-pm@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/admin-guide/pm/amd-pstate.rst
|
||||
F: drivers/cpufreq/amd-pstate*
|
||||
F: include/linux/amd-pstate.h
|
||||
F: tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
|
||||
|
||||
AMD PTDMA DRIVER
|
||||
@ -3602,10 +3601,9 @@ W: https://wireless.wiki.kernel.org/en/users/Drivers/b43
|
||||
F: drivers/net/wireless/broadcom/b43/
|
||||
|
||||
B43LEGACY WIRELESS DRIVER
|
||||
M: Larry Finger <Larry.Finger@lwfinger.net>
|
||||
L: linux-wireless@vger.kernel.org
|
||||
L: b43-dev@lists.infradead.org
|
||||
S: Maintained
|
||||
S: Orphan
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/b43
|
||||
F: drivers/net/wireless/broadcom/b43legacy/
|
||||
|
||||
@ -3981,7 +3979,7 @@ 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
|
||||
@ -4084,12 +4082,13 @@ 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)
|
||||
@ -5296,7 +5295,7 @@ 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
|
||||
@ -6239,9 +6238,8 @@ S: Maintained
|
||||
F: drivers/usb/dwc3/
|
||||
|
||||
DESIGNWARE XDATA IP DRIVER
|
||||
M: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
|
||||
L: linux-pci@vger.kernel.org
|
||||
S: Maintained
|
||||
S: Orphan
|
||||
F: Documentation/misc-devices/dw-xdata-pcie.rst
|
||||
F: drivers/misc/dw-xdata-pcie.c
|
||||
|
||||
@ -8212,7 +8210,7 @@ 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
|
||||
@ -8613,7 +8611,7 @@ 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
|
||||
@ -9103,7 +9101,7 @@ 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
|
||||
@ -9237,7 +9235,7 @@ 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
|
||||
@ -11035,8 +11033,8 @@ F: include/uapi/drm/i915_drm.h
|
||||
|
||||
INTEL DRM XE DRIVER (Lunar Lake and newer)
|
||||
M: Lucas De Marchi <lucas.demarchi@intel.com>
|
||||
M: Oded Gabbay <ogabbay@kernel.org>
|
||||
M: Thomas Hellström <thomas.hellstrom@linux.intel.com>
|
||||
M: Rodrigo Vivi <rodrigo.vivi@intel.com>
|
||||
L: intel-xe@lists.freedesktop.org
|
||||
S: Supported
|
||||
W: https://drm.pages.freedesktop.org/intel-docs/
|
||||
@ -11157,7 +11155,7 @@ 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
|
||||
@ -11530,7 +11528,7 @@ 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
|
||||
@ -11542,7 +11540,7 @@ 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/
|
||||
@ -11951,7 +11949,7 @@ 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
|
||||
@ -12478,7 +12476,7 @@ 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
|
||||
@ -12774,7 +12772,7 @@ 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/*
|
||||
@ -12904,7 +12902,7 @@ 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
|
||||
@ -15237,7 +15235,6 @@ F: drivers/staging/most/
|
||||
F: include/linux/most.h
|
||||
|
||||
MOTORCOMM PHY DRIVER
|
||||
M: Peter Geis <pgwipeout@gmail.com>
|
||||
M: Frank <Frank.Sae@motor-comm.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
@ -15826,7 +15823,7 @@ F: drivers/nfc/virtual_ncidev.c
|
||||
F: tools/testing/selftests/nci/
|
||||
|
||||
NFS, SUNRPC, AND LOCKD CLIENTS
|
||||
M: Trond Myklebust <trond.myklebust@hammerspace.com>
|
||||
M: Trond Myklebust <trondmy@kernel.org>
|
||||
M: Anna Schumaker <anna@kernel.org>
|
||||
L: linux-nfs@vger.kernel.org
|
||||
S: Maintained
|
||||
@ -17533,7 +17530,6 @@ 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
|
||||
@ -17997,7 +17993,7 @@ 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
|
||||
@ -18053,7 +18049,7 @@ 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
|
||||
@ -18211,6 +18207,7 @@ 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,*
|
||||
@ -18375,7 +18372,7 @@ M: Jeff Johnson <jjohnson@kernel.org>
|
||||
L: ath12k@lists.infradead.org
|
||||
S: Supported
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath12k
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
|
||||
F: drivers/net/wireless/ath/ath12k/
|
||||
N: ath12k
|
||||
|
||||
@ -18385,7 +18382,7 @@ M: Jeff Johnson <jjohnson@kernel.org>
|
||||
L: ath10k@lists.infradead.org
|
||||
S: Supported
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath10k
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
|
||||
F: drivers/net/wireless/ath/ath10k/
|
||||
N: ath10k
|
||||
|
||||
@ -18396,7 +18393,7 @@ L: ath11k@lists.infradead.org
|
||||
S: Supported
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath11k
|
||||
B: https://wireless.wiki.kernel.org/en/users/Drivers/ath11k/bugreport
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
|
||||
F: drivers/net/wireless/ath/ath11k/
|
||||
N: ath11k
|
||||
|
||||
@ -18405,7 +18402,7 @@ M: Toke Høiland-Jørgensen <toke@toke.dk>
|
||||
L: linux-wireless@vger.kernel.org
|
||||
S: Maintained
|
||||
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath9k
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
|
||||
F: Documentation/devicetree/bindings/net/wireless/qca,ath9k.yaml
|
||||
F: drivers/net/wireless/ath/ath9k/
|
||||
|
||||
@ -19316,7 +19313,7 @@ F: drivers/perf/riscv_pmu_legacy.c
|
||||
F: drivers/perf/riscv_pmu_sbi.c
|
||||
|
||||
RISC-V THEAD SoC SUPPORT
|
||||
M: Jisheng Zhang <jszhang@kernel.org>
|
||||
M: Drew Fustini <drew@pdp7.com>
|
||||
M: Guo Ren <guoren@kernel.org>
|
||||
M: Fu Wei <wefu@redhat.com>
|
||||
L: linux-riscv@lists.infradead.org
|
||||
@ -19510,7 +19507,6 @@ F: drivers/net/wireless/realtek/rtl818x/rtl8180/
|
||||
|
||||
RTL8187 WIRELESS DRIVER
|
||||
M: Hin-Tak Leung <hintak.leung@gmail.com>
|
||||
M: Larry Finger <Larry.Finger@lwfinger.net>
|
||||
L: linux-wireless@vger.kernel.org
|
||||
S: Maintained
|
||||
T: git https://github.com/pkshih/rtw.git
|
||||
@ -20059,7 +20055,7 @@ 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
|
||||
@ -21248,7 +21244,6 @@ W: http://wiki.laptop.org/go/DCON
|
||||
F: drivers/staging/olpc_dcon/
|
||||
|
||||
STAGING - REALTEK RTL8712U DRIVERS
|
||||
M: Larry Finger <Larry.Finger@lwfinger.net>
|
||||
M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>.
|
||||
S: Odd Fixes
|
||||
F: drivers/staging/rtl8712/
|
||||
@ -22678,7 +22673,7 @@ L: tomoyo-users-en@lists.osdn.me (subscribers-only, for users in English)
|
||||
L: tomoyo-dev@lists.osdn.me (subscribers-only, for developers in Japanese)
|
||||
L: tomoyo-users@lists.osdn.me (subscribers-only, for users in Japanese)
|
||||
S: Maintained
|
||||
W: https://tomoyo.osdn.jp/
|
||||
W: https://tomoyo.sourceforge.net/
|
||||
F: security/tomoyo/
|
||||
|
||||
TOPSTAR LAPTOP EXTRAS DRIVER
|
||||
@ -22747,7 +22742,7 @@ 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/
|
||||
@ -22973,7 +22968,7 @@ 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>
|
||||
@ -23975,7 +23970,6 @@ 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
|
||||
@ -24811,7 +24805,7 @@ 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 = -rc2
|
||||
EXTRAVERSION = -rc7
|
||||
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";
|
||||
};
|
||||
|
||||
@ -128,6 +128,7 @@
|
||||
pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
|
||||
power-domains = <&power RK3066_PD_VIO>;
|
||||
rockchip,grf = <&grf>;
|
||||
#sound-dai-cells = <0>;
|
||||
status = "disabled";
|
||||
|
||||
ports {
|
||||
|
||||
@ -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)
|
||||
|
||||
@ -232,11 +232,24 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
|
||||
unsigned long old;
|
||||
|
||||
if (unlikely(atomic_read(¤t->tracing_graph_pause)))
|
||||
err_out:
|
||||
return;
|
||||
|
||||
if (IS_ENABLED(CONFIG_UNWINDER_FRAME_POINTER)) {
|
||||
/* FP points one word below parent's top of stack */
|
||||
frame_pointer += 4;
|
||||
/*
|
||||
* Usually, the stack frames are contiguous in memory but cases
|
||||
* have been observed where the next stack frame does not live
|
||||
* at 'frame_pointer + 4' as this code used to assume.
|
||||
*
|
||||
* Instead, dereference the field in the stack frame that
|
||||
* stores the SP of the calling frame: to avoid unbounded
|
||||
* recursion, this cannot involve any ftrace instrumented
|
||||
* functions, so use the __get_kernel_nofault() primitive
|
||||
* directly.
|
||||
*/
|
||||
__get_kernel_nofault(&frame_pointer,
|
||||
(unsigned long *)(frame_pointer - 8),
|
||||
unsigned long, err_out);
|
||||
} else {
|
||||
struct stackframe frame = {
|
||||
.fp = frame_pointer,
|
||||
|
||||
@ -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;
|
||||
};
|
||||
|
||||
|
||||
@ -5,6 +5,8 @@
|
||||
*/
|
||||
|
||||
/dts-v1/;
|
||||
|
||||
#include <dt-bindings/leds/common.h>
|
||||
#include "rk3308.dtsi"
|
||||
|
||||
/ {
|
||||
@ -24,17 +26,21 @@
|
||||
leds {
|
||||
compatible = "gpio-leds";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&green_led_gio>, <&heartbeat_led_gpio>;
|
||||
pinctrl-0 = <&green_led>, <&heartbeat_led>;
|
||||
|
||||
green-led {
|
||||
color = <LED_COLOR_ID_GREEN>;
|
||||
default-state = "on";
|
||||
function = LED_FUNCTION_POWER;
|
||||
gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_HIGH>;
|
||||
label = "rockpis:green:power";
|
||||
linux,default-trigger = "default-on";
|
||||
};
|
||||
|
||||
blue-led {
|
||||
color = <LED_COLOR_ID_BLUE>;
|
||||
default-state = "on";
|
||||
function = LED_FUNCTION_HEARTBEAT;
|
||||
gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_HIGH>;
|
||||
label = "rockpis:blue:user";
|
||||
linux,default-trigger = "heartbeat";
|
||||
@ -126,10 +132,12 @@
|
||||
};
|
||||
|
||||
&emmc {
|
||||
bus-width = <4>;
|
||||
cap-mmc-highspeed;
|
||||
mmc-hs200-1_8v;
|
||||
cap-sd-highspeed;
|
||||
no-sdio;
|
||||
non-removable;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&emmc_bus8 &emmc_clk &emmc_cmd>;
|
||||
vmmc-supply = <&vcc_io>;
|
||||
status = "okay";
|
||||
};
|
||||
@ -214,11 +222,11 @@
|
||||
pinctrl-0 = <&rtc_32k>;
|
||||
|
||||
leds {
|
||||
green_led_gio: green-led-gpio {
|
||||
green_led: green-led {
|
||||
rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
|
||||
};
|
||||
|
||||
heartbeat_led_gpio: heartbeat-led-gpio {
|
||||
heartbeat_led: heartbeat-led {
|
||||
rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
|
||||
};
|
||||
};
|
||||
|
||||
@ -811,7 +811,7 @@
|
||||
clocks = <&cru SCLK_I2S2_8CH_TX_OUT>,
|
||||
<&cru SCLK_I2S2_8CH_RX_OUT>,
|
||||
<&cru PCLK_ACODEC>;
|
||||
reset-names = "codec-reset";
|
||||
reset-names = "codec";
|
||||
resets = <&cru SRST_ACODEC_P>;
|
||||
#sound-dai-cells = <0>;
|
||||
status = "disabled";
|
||||
|
||||
@ -241,8 +241,8 @@
|
||||
rk805: pmic@18 {
|
||||
compatible = "rockchip,rk805";
|
||||
reg = <0x18>;
|
||||
interrupt-parent = <&gpio2>;
|
||||
interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
|
||||
interrupt-parent = <&gpio0>;
|
||||
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
|
||||
#clock-cells = <1>;
|
||||
clock-output-names = "xin32k", "rk805-clkout2";
|
||||
gpio-controller;
|
||||
|
||||
@ -793,6 +793,7 @@
|
||||
dma-names = "tx";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&spdif_tx>;
|
||||
#sound-dai-cells = <0>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
@ -804,6 +805,7 @@
|
||||
clocks = <&cru SCLK_I2S_2CH>, <&cru HCLK_I2S_2CH>;
|
||||
dmas = <&dmac_bus 6>, <&dmac_bus 7>;
|
||||
dma-names = "tx", "rx";
|
||||
#sound-dai-cells = <0>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
@ -817,6 +819,7 @@
|
||||
dma-names = "tx", "rx";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2s_8ch_bus>;
|
||||
#sound-dai-cells = <0>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
||||
@ -450,7 +450,7 @@ ap_i2c_audio: &i2c8 {
|
||||
dlg,btn-cfg = <50>;
|
||||
dlg,mic-det-thr = <500>;
|
||||
dlg,jack-ins-deb = <20>;
|
||||
dlg,jack-det-rate = "32ms_64ms";
|
||||
dlg,jack-det-rate = "32_64";
|
||||
dlg,jack-rem-deb = <1>;
|
||||
|
||||
dlg,a-d-btn-thr = <0xa>;
|
||||
|
||||
@ -289,7 +289,7 @@
|
||||
regulator-name = "vdd_gpu";
|
||||
regulator-always-on;
|
||||
regulator-boot-on;
|
||||
regulator-min-microvolt = <900000>;
|
||||
regulator-min-microvolt = <500000>;
|
||||
regulator-max-microvolt = <1350000>;
|
||||
regulator-ramp-delay = <6001>;
|
||||
|
||||
|
||||
@ -444,6 +444,7 @@
|
||||
&sdmmc {
|
||||
bus-width = <4>;
|
||||
cap-sd-highspeed;
|
||||
cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
|
||||
disable-wp;
|
||||
max-frequency = <150000000>;
|
||||
no-sdio;
|
||||
|
||||
@ -435,6 +435,7 @@
|
||||
&sdmmc {
|
||||
bus-width = <4>;
|
||||
cap-sd-highspeed;
|
||||
cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
|
||||
disable-wp;
|
||||
max-frequency = <150000000>;
|
||||
no-sdio;
|
||||
|
||||
@ -383,6 +383,7 @@
|
||||
bus-width = <4>;
|
||||
cap-mmc-highspeed;
|
||||
cap-sd-highspeed;
|
||||
cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
|
||||
disable-wp;
|
||||
sd-uhs-sdr104;
|
||||
vmmc-supply = <&vcc_3v3_s3>;
|
||||
|
||||
@ -344,6 +344,11 @@
|
||||
};
|
||||
};
|
||||
|
||||
&pwm0 {
|
||||
pinctrl-0 = <&pwm0m1_pins>;
|
||||
pinctrl-names = "default";
|
||||
};
|
||||
|
||||
&saradc {
|
||||
vref-supply = <&vcc_1v8_s0>;
|
||||
status = "okay";
|
||||
|
||||
@ -288,9 +288,9 @@
|
||||
pinctrl-0 = <&i2c7m0_xfer>;
|
||||
status = "okay";
|
||||
|
||||
es8316: audio-codec@11 {
|
||||
es8316: audio-codec@10 {
|
||||
compatible = "everest,es8316";
|
||||
reg = <0x11>;
|
||||
reg = <0x10>;
|
||||
assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
|
||||
assigned-clock-rates = <12288000>;
|
||||
clocks = <&cru I2S0_8CH_MCLKOUT>;
|
||||
|
||||
@ -366,6 +366,7 @@
|
||||
bus-width = <4>;
|
||||
cap-mmc-highspeed;
|
||||
cap-sd-highspeed;
|
||||
cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
|
||||
disable-wp;
|
||||
max-frequency = <150000000>;
|
||||
no-sdio;
|
||||
@ -393,6 +394,7 @@
|
||||
pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
|
||||
<&rk806_dvs2_null>, <&rk806_dvs3_null>;
|
||||
spi-max-frequency = <1000000>;
|
||||
system-power-controller;
|
||||
|
||||
vcc1-supply = <&vcc5v0_sys>;
|
||||
vcc2-supply = <&vcc5v0_sys>;
|
||||
|
||||
@ -153,8 +153,9 @@ extern void __memset_io(volatile void __iomem *, int, size_t);
|
||||
* emit the large TLP from the CPU.
|
||||
*/
|
||||
|
||||
static inline void __const_memcpy_toio_aligned32(volatile u32 __iomem *to,
|
||||
const u32 *from, size_t count)
|
||||
static __always_inline void
|
||||
__const_memcpy_toio_aligned32(volatile u32 __iomem *to, const u32 *from,
|
||||
size_t count)
|
||||
{
|
||||
switch (count) {
|
||||
case 8:
|
||||
@ -196,24 +197,22 @@ static inline void __const_memcpy_toio_aligned32(volatile u32 __iomem *to,
|
||||
|
||||
void __iowrite32_copy_full(void __iomem *to, const void *from, size_t count);
|
||||
|
||||
static inline void __const_iowrite32_copy(void __iomem *to, const void *from,
|
||||
size_t count)
|
||||
static __always_inline void
|
||||
__iowrite32_copy(void __iomem *to, const void *from, size_t count)
|
||||
{
|
||||
if (count == 8 || count == 4 || count == 2 || count == 1) {
|
||||
if (__builtin_constant_p(count) &&
|
||||
(count == 8 || count == 4 || count == 2 || count == 1)) {
|
||||
__const_memcpy_toio_aligned32(to, from, count);
|
||||
dgh();
|
||||
} else {
|
||||
__iowrite32_copy_full(to, from, count);
|
||||
}
|
||||
}
|
||||
#define __iowrite32_copy __iowrite32_copy
|
||||
|
||||
#define __iowrite32_copy(to, from, count) \
|
||||
(__builtin_constant_p(count) ? \
|
||||
__const_iowrite32_copy(to, from, count) : \
|
||||
__iowrite32_copy_full(to, from, count))
|
||||
|
||||
static inline void __const_memcpy_toio_aligned64(volatile u64 __iomem *to,
|
||||
const u64 *from, size_t count)
|
||||
static __always_inline void
|
||||
__const_memcpy_toio_aligned64(volatile u64 __iomem *to, const u64 *from,
|
||||
size_t count)
|
||||
{
|
||||
switch (count) {
|
||||
case 8:
|
||||
@ -255,21 +254,18 @@ static inline void __const_memcpy_toio_aligned64(volatile u64 __iomem *to,
|
||||
|
||||
void __iowrite64_copy_full(void __iomem *to, const void *from, size_t count);
|
||||
|
||||
static inline void __const_iowrite64_copy(void __iomem *to, const void *from,
|
||||
size_t count)
|
||||
static __always_inline void
|
||||
__iowrite64_copy(void __iomem *to, const void *from, size_t count)
|
||||
{
|
||||
if (count == 8 || count == 4 || count == 2 || count == 1) {
|
||||
if (__builtin_constant_p(count) &&
|
||||
(count == 8 || count == 4 || count == 2 || count == 1)) {
|
||||
__const_memcpy_toio_aligned64(to, from, count);
|
||||
dgh();
|
||||
} else {
|
||||
__iowrite64_copy_full(to, from, count);
|
||||
}
|
||||
}
|
||||
|
||||
#define __iowrite64_copy(to, from, count) \
|
||||
(__builtin_constant_p(count) ? \
|
||||
__const_iowrite64_copy(to, from, count) : \
|
||||
__iowrite64_copy_full(to, from, count))
|
||||
#define __iowrite64_copy __iowrite64_copy
|
||||
|
||||
/*
|
||||
* I/O memory mapping functions.
|
||||
|
||||
@ -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
|
||||
|
||||
@ -462,6 +462,9 @@ static int run_all_insn_set_hw_mode(unsigned int cpu)
|
||||
for (int i = 0; i < ARRAY_SIZE(insn_emulations); i++) {
|
||||
struct insn_emulation *insn = insn_emulations[i];
|
||||
bool enable = READ_ONCE(insn->current_mode) == INSN_HW;
|
||||
if (insn->status == INSN_UNAVAILABLE)
|
||||
continue;
|
||||
|
||||
if (insn->set_hw_mode && insn->set_hw_mode(enable)) {
|
||||
pr_warn("CPU[%u] cannot support the emulation of %s",
|
||||
cpu, insn->name);
|
||||
|
||||
@ -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);
|
||||
|
||||
|
||||
@ -376,7 +376,7 @@ void contpte_clear_young_dirty_ptes(struct vm_area_struct *vma,
|
||||
* clearing access/dirty for the whole block.
|
||||
*/
|
||||
unsigned long start = addr;
|
||||
unsigned long end = start + nr;
|
||||
unsigned long end = start + nr * PAGE_SIZE;
|
||||
|
||||
if (pte_cont(__ptep_get(ptep + nr - 1)))
|
||||
end = ALIGN(end, CONT_PTE_SIZE);
|
||||
@ -386,7 +386,7 @@ void contpte_clear_young_dirty_ptes(struct vm_area_struct *vma,
|
||||
ptep = contpte_align_down(ptep);
|
||||
}
|
||||
|
||||
__clear_young_dirty_ptes(vma, start, ptep, end - start, flags);
|
||||
__clear_young_dirty_ptes(vma, start, ptep, (end - start) / PAGE_SIZE, flags);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(contpte_clear_young_dirty_ptes);
|
||||
|
||||
|
||||
@ -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)
|
||||
|
||||
@ -646,6 +649,17 @@ config PARAVIRT
|
||||
over full virtualization. However, when run without a hypervisor
|
||||
the kernel is theoretically slower and slightly larger.
|
||||
|
||||
config PARAVIRT_TIME_ACCOUNTING
|
||||
bool "Paravirtual steal time accounting"
|
||||
depends on PARAVIRT
|
||||
help
|
||||
Select this option to enable fine granularity task steal time
|
||||
accounting. Time spent executing other tasks in parallel with
|
||||
the current vCPU is discounted from the vCPU power. To account for
|
||||
that, there can be a small performance impact.
|
||||
|
||||
If in doubt, say N here.
|
||||
|
||||
endmenu
|
||||
|
||||
config ARCH_SELECT_MEMORY_MODEL
|
||||
|
||||
@ -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
|
||||
|
||||
@ -44,14 +44,14 @@
|
||||
&gmac0 {
|
||||
status = "okay";
|
||||
|
||||
phy-mode = "rgmii";
|
||||
phy-mode = "rgmii-id";
|
||||
bus_id = <0x0>;
|
||||
};
|
||||
|
||||
&gmac1 {
|
||||
status = "okay";
|
||||
|
||||
phy-mode = "rgmii";
|
||||
phy-mode = "rgmii-id";
|
||||
bus_id = <0x1>;
|
||||
};
|
||||
|
||||
|
||||
@ -43,7 +43,7 @@
|
||||
&gmac0 {
|
||||
status = "okay";
|
||||
|
||||
phy-mode = "rgmii";
|
||||
phy-mode = "rgmii-id";
|
||||
phy-handle = <&phy0>;
|
||||
mdio {
|
||||
compatible = "snps,dwmac-mdio";
|
||||
@ -58,7 +58,7 @@
|
||||
&gmac1 {
|
||||
status = "okay";
|
||||
|
||||
phy-mode = "rgmii";
|
||||
phy-mode = "rgmii-id";
|
||||
phy-handle = <&phy1>;
|
||||
mdio {
|
||||
compatible = "snps,dwmac-mdio";
|
||||
|
||||
@ -92,7 +92,7 @@
|
||||
&gmac2 {
|
||||
status = "okay";
|
||||
|
||||
phy-mode = "rgmii";
|
||||
phy-mode = "rgmii-id";
|
||||
phy-handle = <&phy2>;
|
||||
mdio {
|
||||
compatible = "snps,dwmac-mdio";
|
||||
|
||||
@ -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,
|
||||
|
||||
@ -30,12 +30,17 @@
|
||||
#define KVM_PRIVATE_MEM_SLOTS 0
|
||||
|
||||
#define KVM_HALT_POLL_NS_DEFAULT 500000
|
||||
#define KVM_REQ_TLB_FLUSH_GPA KVM_ARCH_REQ(0)
|
||||
#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(1)
|
||||
|
||||
#define KVM_GUESTDBG_SW_BP_MASK \
|
||||
(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP)
|
||||
#define KVM_GUESTDBG_VALID_MASK \
|
||||
(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP | KVM_GUESTDBG_SINGLESTEP)
|
||||
|
||||
#define KVM_DIRTY_LOG_MANUAL_CAPS \
|
||||
(KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | KVM_DIRTY_LOG_INITIALLY_SET)
|
||||
|
||||
struct kvm_vm_stat {
|
||||
struct kvm_vm_stat_generic generic;
|
||||
u64 pages;
|
||||
@ -190,6 +195,7 @@ struct kvm_vcpu_arch {
|
||||
|
||||
/* vcpu's vpid */
|
||||
u64 vpid;
|
||||
gpa_t flush_gpa;
|
||||
|
||||
/* Frequency of stable timer in Hz */
|
||||
u64 timer_mhz;
|
||||
@ -201,6 +207,13 @@ struct kvm_vcpu_arch {
|
||||
struct kvm_mp_state mp_state;
|
||||
/* cpucfg */
|
||||
u32 cpucfg[KVM_MAX_CPUCFG_REGS];
|
||||
|
||||
/* paravirt steal time */
|
||||
struct {
|
||||
u64 guest_addr;
|
||||
u64 last_steal;
|
||||
struct gfn_to_hva_cache cache;
|
||||
} st;
|
||||
};
|
||||
|
||||
static inline unsigned long readl_sw_gcsr(struct loongarch_csrs *csr, int reg)
|
||||
|
||||
@ -14,6 +14,7 @@
|
||||
|
||||
#define KVM_HCALL_SERVICE HYPERCALL_ENCODE(HYPERVISOR_KVM, KVM_HCALL_CODE_SERVICE)
|
||||
#define KVM_HCALL_FUNC_IPI 1
|
||||
#define KVM_HCALL_FUNC_NOTIFY 2
|
||||
|
||||
#define KVM_HCALL_SWDBG HYPERCALL_ENCODE(HYPERVISOR_KVM, KVM_HCALL_CODE_SWDBG)
|
||||
|
||||
@ -24,6 +25,16 @@
|
||||
#define KVM_HCALL_INVALID_CODE -1UL
|
||||
#define KVM_HCALL_INVALID_PARAMETER -2UL
|
||||
|
||||
#define KVM_STEAL_PHYS_VALID BIT_ULL(0)
|
||||
#define KVM_STEAL_PHYS_MASK GENMASK_ULL(63, 6)
|
||||
|
||||
struct kvm_steal_time {
|
||||
__u64 steal;
|
||||
__u32 version;
|
||||
__u32 flags;
|
||||
__u32 pad[12];
|
||||
};
|
||||
|
||||
/*
|
||||
* Hypercall interface for KVM hypervisor
|
||||
*
|
||||
|
||||
@ -120,4 +120,9 @@ static inline void kvm_write_reg(struct kvm_vcpu *vcpu, int num, unsigned long v
|
||||
vcpu->arch.gprs[num] = val;
|
||||
}
|
||||
|
||||
static inline bool kvm_pvtime_supported(void)
|
||||
{
|
||||
return !!sched_info_on();
|
||||
}
|
||||
|
||||
#endif /* __ASM_LOONGARCH_KVM_VCPU_H__ */
|
||||
|
||||
@ -169,6 +169,7 @@
|
||||
#define KVM_SIGNATURE "KVM\0"
|
||||
#define CPUCFG_KVM_FEATURE (CPUCFG_KVM_BASE + 4)
|
||||
#define KVM_FEATURE_IPI BIT(1)
|
||||
#define KVM_FEATURE_STEAL_TIME BIT(2)
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
|
||||
@ -56,6 +56,7 @@ extern int early_cpu_to_node(int cpu);
|
||||
static inline void early_numa_add_cpu(int cpuid, s16 node) { }
|
||||
static inline void numa_add_cpu(unsigned int cpu) { }
|
||||
static inline void numa_remove_cpu(unsigned int cpu) { }
|
||||
static inline void set_cpuid_to_node(int cpuid, s16 node) { }
|
||||
|
||||
static inline int early_cpu_to_node(int cpu)
|
||||
{
|
||||
|
||||
@ -18,6 +18,7 @@ static inline u64 paravirt_steal_clock(int cpu)
|
||||
}
|
||||
|
||||
int __init pv_ipi_init(void);
|
||||
int __init pv_time_init(void);
|
||||
|
||||
#else
|
||||
|
||||
@ -26,5 +27,9 @@ static inline int pv_ipi_init(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int pv_time_init(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif // CONFIG_PARAVIRT
|
||||
#endif
|
||||
|
||||
@ -42,7 +42,7 @@
|
||||
.macro JUMP_VIRT_ADDR temp1 temp2
|
||||
li.d \temp1, CACHE_BASE
|
||||
pcaddi \temp2, 0
|
||||
or \temp1, \temp1, \temp2
|
||||
bstrins.d \temp1, \temp2, (DMW_PABITS - 1), 0
|
||||
jirl zero, \temp1, 0xc
|
||||
.endm
|
||||
|
||||
|
||||
@ -81,7 +81,11 @@ struct kvm_fpu {
|
||||
#define LOONGARCH_REG_64(TYPE, REG) (TYPE | KVM_REG_SIZE_U64 | (REG << LOONGARCH_REG_SHIFT))
|
||||
#define KVM_IOC_CSRID(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CSR, REG)
|
||||
#define KVM_IOC_CPUCFG(REG) LOONGARCH_REG_64(KVM_REG_LOONGARCH_CPUCFG, REG)
|
||||
|
||||
/* Device Control API on vcpu fd */
|
||||
#define KVM_LOONGARCH_VCPU_CPUCFG 0
|
||||
#define KVM_LOONGARCH_VCPU_PVTIME_CTRL 1
|
||||
#define KVM_LOONGARCH_VCPU_PVTIME_GPA 0
|
||||
|
||||
struct kvm_debug_exit_arch {
|
||||
};
|
||||
|
||||
@ -22,7 +22,7 @@
|
||||
_head:
|
||||
.word MZ_MAGIC /* "MZ", MS-DOS header */
|
||||
.org 0x8
|
||||
.dword kernel_entry /* Kernel entry point */
|
||||
.dword _kernel_entry /* Kernel entry point (physical address) */
|
||||
.dword _kernel_asize /* Kernel image effective size */
|
||||
.quad PHYS_LINK_KADDR /* Kernel image load offset from start of RAM */
|
||||
.org 0x38 /* 0x20 ~ 0x37 reserved */
|
||||
|
||||
@ -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. */
|
||||
if (info->ctrl.type == LOONGARCH_BREAKPOINT_EXECUTE) {
|
||||
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);
|
||||
} 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;
|
||||
}
|
||||
|
||||
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) {
|
||||
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);
|
||||
}
|
||||
}
|
||||
}
|
||||
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) {
|
||||
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);
|
||||
}
|
||||
}
|
||||
}
|
||||
NOKPROBE_SYMBOL(watchpoint_handler);
|
||||
|
||||
|
||||
@ -4,11 +4,14 @@
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/jump_label.h>
|
||||
#include <linux/kvm_para.h>
|
||||
#include <linux/reboot.h>
|
||||
#include <linux/static_call.h>
|
||||
#include <asm/paravirt.h>
|
||||
|
||||
static int has_steal_clock;
|
||||
struct static_key paravirt_steal_enabled;
|
||||
struct static_key paravirt_steal_rq_enabled;
|
||||
static DEFINE_PER_CPU(struct kvm_steal_time, steal_time) __aligned(64);
|
||||
|
||||
static u64 native_steal_clock(int cpu)
|
||||
{
|
||||
@ -17,6 +20,34 @@ static u64 native_steal_clock(int cpu)
|
||||
|
||||
DEFINE_STATIC_CALL(pv_steal_clock, native_steal_clock);
|
||||
|
||||
static bool steal_acc = true;
|
||||
|
||||
static int __init parse_no_stealacc(char *arg)
|
||||
{
|
||||
steal_acc = false;
|
||||
return 0;
|
||||
}
|
||||
early_param("no-steal-acc", parse_no_stealacc);
|
||||
|
||||
static u64 paravt_steal_clock(int cpu)
|
||||
{
|
||||
int version;
|
||||
u64 steal;
|
||||
struct kvm_steal_time *src;
|
||||
|
||||
src = &per_cpu(steal_time, cpu);
|
||||
do {
|
||||
|
||||
version = src->version;
|
||||
virt_rmb(); /* Make sure that the version is read before the steal */
|
||||
steal = src->steal;
|
||||
virt_rmb(); /* Make sure that the steal is read before the next version */
|
||||
|
||||
} while ((version & 1) || (version != src->version));
|
||||
|
||||
return steal;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
static void pv_send_ipi_single(int cpu, unsigned int action)
|
||||
{
|
||||
@ -149,3 +180,117 @@ int __init pv_ipi_init(void)
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pv_enable_steal_time(void)
|
||||
{
|
||||
int cpu = smp_processor_id();
|
||||
unsigned long addr;
|
||||
struct kvm_steal_time *st;
|
||||
|
||||
if (!has_steal_clock)
|
||||
return -EPERM;
|
||||
|
||||
st = &per_cpu(steal_time, cpu);
|
||||
addr = per_cpu_ptr_to_phys(st);
|
||||
|
||||
/* The whole structure kvm_steal_time should be in one page */
|
||||
if (PFN_DOWN(addr) != PFN_DOWN(addr + sizeof(*st))) {
|
||||
pr_warn("Illegal PV steal time addr %lx\n", addr);
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
addr |= KVM_STEAL_PHYS_VALID;
|
||||
kvm_hypercall2(KVM_HCALL_FUNC_NOTIFY, KVM_FEATURE_STEAL_TIME, addr);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pv_disable_steal_time(void)
|
||||
{
|
||||
if (has_steal_clock)
|
||||
kvm_hypercall2(KVM_HCALL_FUNC_NOTIFY, KVM_FEATURE_STEAL_TIME, 0);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
static int pv_time_cpu_online(unsigned int cpu)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
pv_enable_steal_time();
|
||||
local_irq_restore(flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pv_time_cpu_down_prepare(unsigned int cpu)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
pv_disable_steal_time();
|
||||
local_irq_restore(flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void pv_cpu_reboot(void *unused)
|
||||
{
|
||||
pv_disable_steal_time();
|
||||
}
|
||||
|
||||
static int pv_reboot_notify(struct notifier_block *nb, unsigned long code, void *unused)
|
||||
{
|
||||
on_each_cpu(pv_cpu_reboot, NULL, 1);
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static struct notifier_block pv_reboot_nb = {
|
||||
.notifier_call = pv_reboot_notify,
|
||||
};
|
||||
|
||||
int __init pv_time_init(void)
|
||||
{
|
||||
int r, feature;
|
||||
|
||||
if (!cpu_has_hypervisor)
|
||||
return 0;
|
||||
if (!kvm_para_available())
|
||||
return 0;
|
||||
|
||||
feature = read_cpucfg(CPUCFG_KVM_FEATURE);
|
||||
if (!(feature & KVM_FEATURE_STEAL_TIME))
|
||||
return 0;
|
||||
|
||||
has_steal_clock = 1;
|
||||
r = pv_enable_steal_time();
|
||||
if (r < 0) {
|
||||
has_steal_clock = 0;
|
||||
return 0;
|
||||
}
|
||||
register_reboot_notifier(&pv_reboot_nb);
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
r = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
|
||||
"loongarch/pv_time:online",
|
||||
pv_time_cpu_online, pv_time_cpu_down_prepare);
|
||||
if (r < 0) {
|
||||
has_steal_clock = 0;
|
||||
pr_err("Failed to install cpu hotplug callbacks\n");
|
||||
return r;
|
||||
}
|
||||
#endif
|
||||
|
||||
static_call_update(pv_steal_clock, paravt_steal_clock);
|
||||
|
||||
static_key_slow_inc(¶virt_steal_enabled);
|
||||
#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
|
||||
if (steal_acc)
|
||||
static_key_slow_inc(¶virt_steal_rq_enabled);
|
||||
#endif
|
||||
|
||||
pr_info("Using paravirt steal-time\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -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;
|
||||
|
||||
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);
|
||||
|
||||
@ -282,7 +282,7 @@ static void __init fdt_setup(void)
|
||||
return;
|
||||
|
||||
/* Prefer to use built-in dtb, checking its legality first. */
|
||||
if (!fdt_check_header(__dtb_start))
|
||||
if (IS_ENABLED(CONFIG_BUILTIN_DTB) && !fdt_check_header(__dtb_start))
|
||||
fdt_pointer = __dtb_start;
|
||||
else
|
||||
fdt_pointer = efi_fdt_pointer(); /* Fallback to firmware dtb */
|
||||
@ -351,10 +351,8 @@ void __init platform_init(void)
|
||||
arch_reserve_vmcore();
|
||||
arch_reserve_crashkernel();
|
||||
|
||||
#ifdef CONFIG_ACPI_TABLE_UPGRADE
|
||||
acpi_table_upgrade();
|
||||
#endif
|
||||
#ifdef CONFIG_ACPI
|
||||
acpi_table_upgrade();
|
||||
acpi_gbl_use_default_register_widths = false;
|
||||
acpi_boot_table_init();
|
||||
#endif
|
||||
|
||||
@ -273,7 +273,6 @@ static void __init fdt_smp_setup(void)
|
||||
|
||||
if (cpuid == loongson_sysconf.boot_cpu_id) {
|
||||
cpu = 0;
|
||||
numa_add_cpu(cpu);
|
||||
} else {
|
||||
cpu = cpumask_next_zero(-1, cpu_present_mask);
|
||||
}
|
||||
@ -283,6 +282,9 @@ static void __init fdt_smp_setup(void)
|
||||
set_cpu_present(cpu, true);
|
||||
__cpu_number_map[cpuid] = cpu;
|
||||
__cpu_logical_map[cpu] = cpuid;
|
||||
|
||||
early_numa_add_cpu(cpu, 0);
|
||||
set_cpuid_to_node(cpuid, 0);
|
||||
}
|
||||
|
||||
loongson_sysconf.nr_cpus = num_processors;
|
||||
@ -468,6 +470,7 @@ void smp_prepare_boot_cpu(void)
|
||||
set_cpu_possible(0, true);
|
||||
set_cpu_online(0, true);
|
||||
set_my_cpu_offset(per_cpu_offset(0));
|
||||
numa_add_cpu(0);
|
||||
|
||||
rr_node = first_node(node_online_map);
|
||||
for_each_possible_cpu(cpu) {
|
||||
|
||||
@ -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;
|
||||
|
||||
@ -15,6 +15,7 @@
|
||||
|
||||
#include <asm/cpu-features.h>
|
||||
#include <asm/loongarch.h>
|
||||
#include <asm/paravirt.h>
|
||||
#include <asm/time.h>
|
||||
|
||||
u64 cpu_clock_freq;
|
||||
@ -214,4 +215,5 @@ void __init time_init(void)
|
||||
|
||||
constant_clockevent_init();
|
||||
constant_clocksource_init();
|
||||
pv_time_init();
|
||||
}
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
|
||||
#define PAGE_SIZE _PAGE_SIZE
|
||||
#define RO_EXCEPTION_TABLE_ALIGN 4
|
||||
#define PHYSADDR_MASK 0xffffffffffff /* 48-bit */
|
||||
|
||||
/*
|
||||
* Put .bss..swapper_pg_dir as the first thing in .bss. This will
|
||||
@ -142,10 +143,11 @@ SECTIONS
|
||||
|
||||
#ifdef CONFIG_EFI_STUB
|
||||
/* header symbols */
|
||||
_kernel_asize = _end - _text;
|
||||
_kernel_fsize = _edata - _text;
|
||||
_kernel_vsize = _end - __initdata_begin;
|
||||
_kernel_rsize = _edata - __initdata_begin;
|
||||
_kernel_entry = ABSOLUTE(kernel_entry & PHYSADDR_MASK);
|
||||
_kernel_asize = ABSOLUTE(_end - _text);
|
||||
_kernel_fsize = ABSOLUTE(_edata - _text);
|
||||
_kernel_vsize = ABSOLUTE(_end - __initdata_begin);
|
||||
_kernel_rsize = ABSOLUTE(_edata - __initdata_begin);
|
||||
#endif
|
||||
|
||||
.gptab.sdata : {
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user