The first thing that the ftrace function callback helper functions should do
is to check for recursion. Peter Zijlstra found that when
"rcu_is_watching()" had its notrace removed, it caused perf function tracing
to crash. This is because the call of rcu_is_watching() is tested before
function recursion is checked and and if it is traced, it will cause an
infinite recursion loop.
rcu_is_watching() should still stay notrace, but to prevent this should
never had crashed in the first place. The recursion prevention must be the
first thing done in callback functions.
Link: https://lore.kernel.org/r/20200929112541.GM2628@hirez.programming.kicks-ass.net
Cc: stable@vger.kernel.org
Cc: Paul McKenney <paulmck@kernel.org>
Fixes: c68c0fa293 ("ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too")
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reported-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The temp buffer size variable for trace_find_next_entry() was incorrectly
being updated when the size did not change. The temp buffer size should only
be updated when it is reallocated.
This is mostly an issue when used with ftrace_dump(). That's because
ftrace_dump() can not allocate a new buffer, and instead uses a temporary
buffer with a fix size. But the variable that keeps track of that size is
incorrectly updated with each call, and it could fall into the path that
would try to reallocate the buffer and produce a warning.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1601 at kernel/trace/trace.c:3548
trace_find_next_entry+0xd0/0xe0
Modules linked in [..]
CPU: 1 PID: 1601 Comm: bash Not tainted 5.9.0-rc5-test+ #521
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03
07/14/2016
RIP: 0010:trace_find_next_entry+0xd0/0xe0
Code: 40 21 00 00 4c 89 e1 31 d2 4c 89 ee 48 89 df e8 c6 9e ff ff 89 ab 54
21 00 00 5b 5d 41 5c 41 5d c3 48 63 d5 eb bf 31 c0 eb f0 <0f> 0b 48 63 d5 eb
b4 66 0f 1f 84 00 00 00 00 00 53 48 8d 8f 60 21
RSP: 0018:ffff95a4f2e8bd70 EFLAGS: 00010046
RAX: ffffffff96679fc0 RBX: ffffffff97910de0 RCX: ffffffff96679fc0
RDX: ffff95a4f2e8bd98 RSI: ffff95a4ee321098 RDI: ffffffff97913000
RBP: 0000000000000018 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000046 R12: ffff95a4f2e8bd98
R13: 0000000000000000 R14: ffff95a4ee321098 R15: 00000000009aa301
FS: 00007f8565484740(0000) GS:ffff95a55aa40000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055876bd43d90 CR3: 00000000b76e6003 CR4: 00000000001706e0
Call Trace:
trace_print_lat_context+0x58/0x2d0
? cpumask_next+0x16/0x20
print_trace_line+0x1a4/0x4f0
ftrace_dump.cold+0xad/0x12c
__handle_sysrq.cold+0x51/0x126
write_sysrq_trigger+0x3f/0x4a
proc_reg_write+0x53/0x80
vfs_write+0xca/0x210
ksys_write+0x70/0xf0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f8565579487
Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa
64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff
77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007ffd40707948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8565579487
RDX: 0000000000000002 RSI: 000055876bd74de0 RDI: 0000000000000001
RBP: 000055876bd74de0 R08: 000000000000000a R09: 0000000000000001
R10: 000055876bdec280 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f856564a500 R14: 0000000000000002 R15: 00007f856564a700
irq event stamp: 109958
---[ end trace 7aab5b7e51484b00 ]---
Not only fix the updating of the temp buffer, but also do not free the temp
buffer before a new buffer is allocated (there's no reason to not continue
to use the current temp buffer if an allocation fails).
Cc: stable@vger.kernel.org
Fixes: 8e99cf91b9 ("tracing: Do not allocate buffer in trace_find_next_entry() in atomic")
Reported-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fix to remove tailing spaces after value. If there is a space
after value, the bootconfig failed to remove it because it
applies strim() before replacing the delimiter with null.
For example,
foo = var # comment
was parsed as below.
foo="var "
but user will expect
foo="var"
This fixes it by applying strim() after removing the delimiter.
Link: https://lkml.kernel.org/r/160068149134.1088739.8868306567670058853.stgit@devnote2
Fixes: 76db5a27a8 ("bootconfig: Add Extra Boot Config support")
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fix a bug of breaking existing tree nodes by parsing the second
and subsequent braces. Since the bootconfig parser uses the
node.next field as a flag of current parent node, but this will
break the existing tree if the same key node is specified again
in the bootconfig.
For example, the following bootconfig should be foo.buz and bar.
foo
bar
foo { buz }
However, when parsing the brace "{", it breaks foo->bar link
by marking open-brace node. So the bootconfig unlinks bar
from the bootconfig internal tree.
This introduces a stack outside of the tree and record the
last open-brace on the stack instead of using node.next field.
Link: https://lkml.kernel.org/r/160068148267.1088739.8264704338030168660.stgit@devnote2
Fixes: 76db5a27a8 ("bootconfig: Add Extra Boot Config support")
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This eliminates the following sparse warning:
init/main.c:306:6: warning: symbol 'xbc_namebuf' was not declared.
Should it be static?
Link: https://lkml.kernel.org/r/20200915070324.2239473-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Since kprobe_event= cmdline option allows user to put kprobes on the
functions in initmem, kprobe has to make such probes gone after boot.
Currently the probes on the init functions in modules will be handled
by module callback, but the kernel init text isn't handled.
Without this, kprobes may access non-exist text area to disable or
remove it.
Link: https://lkml.kernel.org/r/159972810544.428528.1839307531600646955.stgit@devnote2
Fixes: 970988e19e ("tracing/kprobe: Add kprobe_event= boot parameter")
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
clang static analyzer reports this problem
trace_events_hist.c:3824:3: warning: Attempt to free
released memory
kfree(hist_data->attrs->var_defs.name[i]);
In parse_var_defs() if there is a problem allocating
var_defs.expr, the earlier var_defs.name is freed.
This free is duplicated by free_var_defs() which frees
the rest of the list.
Because free_var_defs() has to run anyway, remove the
second free fom parse_var_defs().
Link: https://lkml.kernel.org/r/20200907135845.15804-1-trix@redhat.com
Cc: stable@vger.kernel.org
Fixes: 30350d65ac ("tracing: Add variable support to hist triggers")
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Commit 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
changed ctl_table.proc_handler to take a kernel pointer. Adjust the
signature of ftrace_enable_sysctl to match ctl_table.proc_handler which
fixes the following sparse warning:
kernel/trace/ftrace.c:7544:43: warning: incorrect type in argument 3 (different address spaces)
kernel/trace/ftrace.c:7544:43: expected void *
kernel/trace/ftrace.c:7544:43: got void [noderef] __user *buffer
Link: https://lkml.kernel.org/r/20200907093207.13540-1-tklauser@distanz.ch
Fixes: 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
For 64bit CONFIG_BASE_SMALL=0 systems PID_MAX_LIMIT is set by default to
4194304. During boot the kernel sets a new value based on number of CPUs
but no lower than 32768. It is 1024 per CPU so with 128 CPUs the default
becomes 131072 which needs six digits.
This value can be increased during run time but must not exceed the
initial upper limit.
Systemd sometime after v241 sets it to the upper limit during boot. The
result is that when the pid exceeds five digits, the trace output is a
little hard to read because it is no longer properly padded (same like
on big iron with 98+ CPUs).
Increase the pid padding to seven digits.
Link: https://lkml.kernel.org/r/20200904082331.dcdkrr3bkn3e4qlg@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Add synchronize_rcu() after list_del_rcu() in
ftrace_remove_trampoline_from_kallsyms() to protect readers of
ftrace_ops_trampoline_list (in ftrace_get_trampoline_kallsym)
which is used when kallsyms is read.
Link: https://lkml.kernel.org/r/20200901091617.31837-1-adrian.hunter@intel.com
Fixes: fc0ea795f5 ("ftrace: Add symbols for ftrace trampolines")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Commit fc0ea795f5 ("ftrace: Add symbols for ftrace trampolines")
missed to remove ops from new ftrace_ops_trampoline_list in
ftrace_startup() if ftrace_hash_ipmodify_enable() fails there. It may
lead to BUG if such ops come from a module which may be removed.
Moreover, the trampoline itself is not freed in this case.
Fix it by calling ftrace_trampoline_free() during the rollback.
Link: https://lkml.kernel.org/r/20200831122631.28057-1-mbenes@suse.cz
Fixes: fc0ea795f5 ("ftrace: Add symbols for ftrace trampolines")
Fixes: f8b8be8a31 ("ftrace, kprobes: Support IPMODIFY flag to find IP modify conflict")
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
A collection of fixes I've been accruing over the last few weeks, none
of them have been severe enough to warrant flushing the queue but it's
been long enough now that it's a good idea to send them in.
A handful of them are fixups for QSPI DT/bindings/compatibles, some
smaller fixes for system DMA clock control and TMU interrupts on i.MX,
a handful of fixes for OMAP, including a fix for DSI (display) on omap5.
-----BEGIN PGP SIGNATURE-----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=ddMn
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A collection of fixes I've been accruing over the last few weeks, none
of them have been severe enough to warrant flushing the queue but it's
been long enough now that it's a good idea to send them in.
A handful of them are fixups for QSPI DT/bindings/compatibles, some
smaller fixes for system DMA clock control and TMU interrupts on i.MX,
a handful of fixes for OMAP, including a fix for DSI (display) on
omap5"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits)
arm64: dts: ns2: Fixed QSPI compatible string
ARM: dts: BCM5301X: Fixed QSPI compatible string
ARM: dts: NSP: Fixed QSPI compatible string
ARM: dts: bcm: HR2: Fixed QSPI compatible string
dt-bindings: spi: Fix spi-bcm-qspi compatible ordering
ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
arm64: dts: imx8mp: correct sdma1 clk setting
arm64: dts: imx8mq: Fix TMU interrupt property
ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy
ARM: dts: vfxxx: Add syscon compatible with OCOTP
ARM: dts: imx6q-logicpd: Fix broken PWM
arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build
ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name
ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells
ARM: dts: imx7ulp: Correct gpio ranges
ARM: dts: ls1021a: fix QuadSPI-memory reg range
arm64: defconfig: Enable ptn5150 extcon driver
arm64: defconfig: Enable USB gadget with configfs
ARM: configs: Update Integrator defconfig
ARM: dts: omap5: Fix DSI base address and clocks
...
Here are some small USB and Thunderbolt driver fixes for 5.9-rc5.
Nothing huge, just a number of bugfixes and new device ids for problems
reported:
- new USB serial driver ids
- bug fixes for syzbot reported problems
- typec driver fixes
- thunderbolt driver fixes
- revert of reported broken commit
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX13VNw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ylPEwCaA+IjSAIYP4Bm/zqrX1DaFETAY9oAn0m8v0rc
4rL321B83HSHlQ45X1J/
=GIDw
-----END PGP SIGNATURE-----
Merge tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for 5.9-rc5.
Nothing huge, just a number of bugfixes and new device ids for
problems reported:
- new USB serial driver ids
- bug fixes for syzbot reported problems
- typec driver fixes
- thunderbolt driver fixes
- revert of reported broken commit
All of these have been in linux-next with no reported issues"
* tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes
usb: typec: intel_pmc_mux: Do not configure Altmode HPD High
usb: core: fix slab-out-of-bounds Read in read_descriptors
Revert "usb: dwc3: meson-g12a: fix shared reset control use"
usb: typec: ucsi: acpi: Check the _DEP dependencies
usb: typec: intel_pmc_mux: Un-register the USB role switch
usb: Fix out of sync data toggle if a configured device is reconfigured
USB: serial: option: support dynamic Quectel USB compositions
USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules
thunderbolt: Use maximum USB3 link rate when reclaiming if link is not up
thunderbolt: Disable ports that are not implemented
USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter
Here are a number of Staging and IIO driver fixes for 5.9-rc5.
The majority of these are IIO driver fixes, to resolve a timestamp issue
that was recently found to affect a bunch of IIO drivers.
The other fixes in here are:
- small IIO driver fixes
- greybus driver fix
- counter driver fix (came in through the IIO fixes tree)
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX13YsQ8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yk/2ACgwHmZh89xVW6VujiPJXNiBtLmrQAAoNbDaO45
+zODfdFDsPWhXBeQIINO
=AxzP
-----END PGP SIGNATURE-----
Merge tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver fixes from Greg KH:
"Here are a number of staging and IIO driver fixes for 5.9-rc5.
The majority of these are IIO driver fixes, to resolve a timestamp
issue that was recently found to affect a bunch of IIO drivers.
The other fixes in here are:
- small IIO driver fixes
- greybus driver fix
- counter driver fix (came in through the IIO fixes tree)
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
iio: adc: mcp3422: fix locking on error path
iio: adc: mcp3422: fix locking scope
iio: adc: meson-saradc: Use the parent device to look up the calib data
iio:adc:max1118 Fix alignment of timestamp and data leak issues
iio:adc:ina2xx Fix timestamp alignment issue.
iio:adc:ti-adc084s021 Fix alignment and data leak issues.
iio:adc:ti-adc081c Fix alignment and data leak issues
iio:magnetometer:ak8975 Fix alignment and data leak issues.
iio:light:ltr501 Fix timestamp alignment issue.
iio:light:max44000 Fix timestamp alignment and prevent data leak.
iio:chemical:ccs811: Fix timestamp alignment and prevent data leak.
iio:proximity:mb1232: Fix timestamp alignment and prevent data leak.
iio:accel:mma7455: Fix timestamp alignment and prevent data leak.
iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak.
iio:accel:mma8452: Fix timestamp alignment and prevent data leak.
iio: accel: kxsd9: Fix alignment of local buffer.
iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER
iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set
counter: microchip-tcb-capture: check the correct variable
iio: cros_ec: Set Gyroscope default frequency to 25Hz
...
Here are some small driver core and debugfs fixes for 5.9-rc5
Included in here are:
- firmware loader memory leak fix
- firmware loader testing fixes for non-EFI systems
- device link locking fixes found by lockdep
- kobject_del() bugfix that has been affecting some callers
- debugfs minor fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX13Zhw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ylfNQCfX4Bx9J1aLGr0/MOBwlXXEycChE0AmwQ9rXa7
u5Przdz+fMr1mLyNBaY5
=4kmo
-----END PGP SIGNATURE-----
Merge tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core and debugfs fixes for 5.9-rc5
Included in here are:
- firmware loader memory leak fix
- firmware loader testing fixes for non-EFI systems
- device link locking fixes found by lockdep
- kobject_del() bugfix that has been affecting some callers
- debugfs minor fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
test_firmware: Test platform fw loading on non-EFI systems
PM: <linux/device.h>: fix @em_pd kernel-doc warning
kobject: Drop unneeded conditional in __kobject_del()
driver core: Fix device_pm_lock() locking for device links
MAINTAINERS: Add the security document to SECURITY CONTACT
driver code: print symbolic error code
debugfs: Fix module state check condition
kobject: Restore old behaviour of kobject_del(NULL)
firmware_loader: fix memory leak for paged buffer
5.9, please pull the following:
- Florian fixes the Broadcom QSPI controller binding such that the most
specific compatible string is the left most one, and all existing
in-tree users are updated as well.
-----BEGIN PGP SIGNATURE-----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=a2Q2
-----END PGP SIGNATURE-----
Merge tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.9, please pull the following:
- Florian fixes the Broadcom QSPI controller binding such that the most
specific compatible string is the left most one, and all existing
in-tree users are updated as well.
* tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux:
arm64: dts: ns2: Fixed QSPI compatible string
ARM: dts: BCM5301X: Fixed QSPI compatible string
ARM: dts: NSP: Fixed QSPI compatible string
ARM: dts: bcm: HR2: Fixed QSPI compatible string
dt-bindings: spi: Fix spi-bcm-qspi compatible ordering
Link: https://lore.kernel.org/r/20200909211857.4144718-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
- Fix the misspelling of 'interrupts' property in i.MX8MQ TMU DT node.
- Correct 'ahb' clock for i.MX8MP SDMA1 in device tree.
- Fix pad QSPI1B_SCLK mux mode for UART3 on i.MX6SX.
-----BEGIN PGP SIGNATURE-----
iQFIBAABCgAyFiEEFmJXigPl4LoGSz08UFdYWoewfM4FAl9Y6BsUHHNoYXduZ3Vv
QGtlcm5lbC5vcmcACgkQUFdYWoewfM6xVggApTBRKs67uPBYQFPRpsPEnXmRuyD+
zDxLjyf5WKh71gP3zDPzMj2TTdz1tE0H4sGwLe5VDAfkhCSQxOtMpfDY22Ateq/O
DDwiN9DGslutyPy/a4pkysvwaJWJRJD1e1PsdX5fIB1gO8VUHW5qB066ADpXFhRv
t/yUUkBQGTxaBHaNkzhdWLiCgVVGkJGueCEp/A2Yg7nK38ibCQ6WdD1tcu+VQpxZ
bc9zo7ue2ZNYtMDSkc9OZgp7o7rK+J3LmjZMBOuIQS6VA4nh+6uTh3kpLXGGkhy6
FA8ZxXYv4qt1t6F9tuSP0XV0em9jkEUOvFT8ms0uVBi4fk7K5HvDaPFWPg==
=CYG2
-----END PGP SIGNATURE-----
Merge tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.9, round 2:
- Fix the misspelling of 'interrupts' property in i.MX8MQ TMU DT node.
- Correct 'ahb' clock for i.MX8MP SDMA1 in device tree.
- Fix pad QSPI1B_SCLK mux mode for UART3 on i.MX6SX.
* tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
arm64: dts: imx8mp: correct sdma1 clk setting
arm64: dts: imx8mq: Fix TMU interrupt property
Link: https://lore.kernel.org/r/20200909143844.GA25109@dragon
Signed-off-by: Olof Johansson <olof@lixom.net>
Few fixes for omap based devices:
- Fix of_clk_get() error handling for omap-iommu
- Fix missing audio pinctrl entries for logicpd boards
- Fix video for logicpd-som-lv after switch to generic panels
- Fix omap5 DSI clocks base
-----BEGIN PGP SIGNATURE-----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=K8IT
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps for v5.9-rc cycle
Few fixes for omap based devices:
- Fix of_clk_get() error handling for omap-iommu
- Fix missing audio pinctrl entries for logicpd boards
- Fix video for logicpd-som-lv after switch to generic panels
- Fix omap5 DSI clocks base
* tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap5: Fix DSI base address and clocks
ARM: dts: logicpd-som-lv-baseboard: Fix missing video
ARM: dts: logicpd-som-lv-baseboard: Fix broken audio
ARM: dts: logicpd-torpedo-baseboard: Fix broken audio
ARM: OMAP2+: Fix an IS_ERR() vs NULL check in _get_pwrdm()
Link: https://lore.kernel.org/r/pull-1599132064-54898@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Here are a number of small driver fixes for 5.9-rc5
Included in here are:
- habanalabs driver fixes
- interconnect driver fixes
- soundwire driver fixes
- dyndbg fixes for reported issues, and then reverts to fix it
all up to a sane state.
- phy driver fixes
Full details of these are in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX13aLA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ymjJgCfZq1pnSupUtvLTimvaPwSaep/lJQAoIoGR0t/
co5MQO8ZGMBEavVtzE79
=vnmm
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver fixes from Greg KH:
"Here are a number of small driver fixes for 5.9-rc5
Included in here are:
- habanalabs driver fixes
- interconnect driver fixes
- soundwire driver fixes
- dyndbg fixes for reported issues, and then reverts to fix it all up
to a sane state.
- phy driver fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Revert "dyndbg: accept query terms like file=bar and module=foo"
Revert "dyndbg: fix problem parsing format="foo bar""
scripts/tags.sh: exclude tools directory from tags generation
video: fbdev: fix OOB read in vga_8planes_imageblit()
dyndbg: fix problem parsing format="foo bar"
dyndbg: refine export, rename to dynamic_debug_exec_queries()
dyndbg: give %3u width in pr-format, cosmetic only
interconnect: qcom: Fix small BW votes being truncated to zero
soundwire: fix double free of dangling pointer
interconnect: Show bandwidth for disabled paths as zero in debugfs
habanalabs: fix report of RAZWI initiator coordinates
habanalabs: prevent user buff overflow
phy: omap-usb2-phy: disable PHY charger detect
phy: qcom-qmp: Use correct values for ipq8074 PCIe Gen2 PHY init
soundwire: bus: fix typo in comment on INTSTAT registers
phy: qualcomm: fix return value check in qcom_ipq806x_usb_phy_probe()
phy: qualcomm: fix platform_no_drv_owner.cocci warnings
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values
x86:
- nSVM state restore fixes
- Async page fault fixes
- Lots of small fixes everywhere
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl9dM5kUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroM+Iwf+LbISO7ccpPMK1kKtOeug/jZv+xQA
sVaBGRzYo+k2e0XtV8E8IV4N30FBtYSwXsbBKkMAoy2FpmMebgDWDQ7xspb6RJMS
/y8t1iqPwdOaLIkUkgc7UihSTlZm05Es3f3q6uZ9+oaM4Fe+V7xWzTUX4Oy89JO7
KcQsTD7pMqS4bfZGADK781ITR/WPgCi0aYx5s6dcwcZAQXhb1K1UKEjB8OGKnjUh
jliReJtxRA16rjF+S5aJ7L07Ce/ksrfwkI4NXJ4GxW+lyOfVNdSBJUBaZt1m7G2M
1We5+i5EjKCjuxmgtUUUfVdazpj1yl+gBGT7KKkLte9T9WZdXyDnixAbvg==
=OFb3
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A bit on the bigger side, mostly due to me being on vacation, then
busy, then on parental leave, but there's nothing worrisome.
ARM:
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced (dirty
logging, for example)
- Fix tracing output of 64bit values
x86:
- nSVM state restore fixes
- Async page fault fixes
- Lots of small fixes everywhere"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits)
KVM: emulator: more strict rsm checks.
KVM: nSVM: more strict SMM checks when returning to nested guest
SVM: nSVM: setup nested msr permission bitmap on nested state load
SVM: nSVM: correctly restore GIF on vmexit from nesting after migration
x86/kvm: don't forget to ACK async PF IRQ
x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro
KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit
KVM: SVM: avoid emulation with stale next_rip
KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN
KVM: SVM: Periodically schedule when unregistering regions on destroy
KVM: MIPS: Change the definition of kvm type
kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed
KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control
KVM: fix memory leak in kvm_io_bus_unregister_dev()
KVM: Check the allocation of pv cpu mask
KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected
KVM: arm64: Update page shift if stage 2 block mapping not supported
KVM: arm64: Fix address truncation in traces
KVM: arm64: Do not try to map PUDs when they are folded into PMD
arm64/x86: KVM: Introduce steal-time cap
...
Fixes for compile issues pointed out by kbuild and one bug I found in
interd with the 5.9 patches.
-----BEGIN PGP SIGNATURE-----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=MJ0P
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://github.com/openrisc/linux
Pull OpenRISC fixes from Stafford Horne:
"Fixes for compile issues pointed out by kbuild and one bug I found in
initrd with the 5.9 patches"
* tag 'for-linus' of git://github.com/openrisc/linux:
openrisc: Fix issue with get_user for 64-bit values
openrisc: Fix cache API compile issue when not inlining
openrisc: Reserve memblock for initrd
- Fix memory resource leak of user_notif under TSYNC race (Tycho Andersen)
-----BEGIN PGP SIGNATURE-----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=I7rD
-----END PGP SIGNATURE-----
Merge tag 'seccomp-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"This fixes a rare race condition in seccomp when using TSYNC and
USER_NOTIF together where a memory allocation would not get freed
(found by syzkaller, fixed by Tycho).
Additionally updates Tycho's MAINTAINERS and .mailmap entries for his
new address"
* tag 'seccomp-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
seccomp: don't leave dangling ->notif if file allocation fails
mailmap, MAINTAINERS: move to tycho.pizza
seccomp: don't leak memory when filter install races
Fix decetion of dax support for block devices. Previous fixes in this
area, which only affected printing of debug messages, had an incorrect
condition for detection of dax. This fix should finally do the right thing.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQT9vPEBxh63bwxRYEEPzq5USduLdgUCX1vSFwAKCRAPzq5USduL
doZTAP95Qn321zeW0Oa40P7d4kS+Seau+SCycq8B69O4ZbDbOgEAubnKEm9S7Mjw
JYIikDMruQJwWGCGQT6dJNo+j18fUQw=
=k/dj
-----END PGP SIGNATURE-----
Merge tag 'libnvdimm-fix-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Vishal Verma:
"Fix detection of dax support for block devices.
Previous fixes in this area, which only affected printing of debug
messages, had an incorrect condition for detection of dax. This fix
should finally do the right thing"
* tag 'libnvdimm-fix-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: fix detection of dax support for non-persistent memory block devices
-----BEGIN PGP SIGNATURE-----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=JTfF
-----END PGP SIGNATURE-----
Merge tag 'for-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes:
- regression fix for a crash after failed snapshot creation
- one more lockep fix: use nofs allocation when allocating missing
device
- fix reloc tree leak on degraded mount
- make some extent buffer alignment checks less strict to mount
filesystems created by btrfs-convert"
* tag 'for-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix NULL pointer dereference after failure to create snapshot
btrfs: free data reloc tree on failed mount
btrfs: require only sector size alignment for parent eb bytenr
btrfs: fix lockdep splat in add_missing_dev
-----BEGIN PGP SIGNATURE-----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=JaQw
-----END PGP SIGNATURE-----
Merge tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fix from Steve French:
"A fix for lookup on DFS link when cifsacl or modefromsid is used"
* tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix DFS mount with cifsacl/modefromsid
Don't ignore return values in rsm_load_state_64/32 to avoid
loading invalid state from SMM state area if it was tampered with
by the guest.
This is primarly intended to avoid letting guest set bits in EFER
(like EFER.SVME when nesting is disabled) by manipulating SMM save area.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827171145.374620-8-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* check that guest is 64 bit guest, otherwise the SVM related fields
in the smm state area are not defined
* If the SMM area indicates that SMM interrupted a running guest,
check that EFER.SVME which is also saved in this area is set, otherwise
the guest might have tampered with SMM save area, and so indicate
emulation failure which should triple fault the guest.
* Check that that guest CPUID supports SVM (due to the same issue as above)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This code was missing and was forcing the L2 run with L1's msr
permission bitmap
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently code in svm_set_nested_state copies the current vmcb control
area to L1 control area (hsave->control), under assumption that
it mostly reflects the defaults that kvm choose, and later qemu
overrides these defaults with L2 state using standard KVM interfaces,
like KVM_SET_REGS.
However nested GIF (which is AMD specific thing) is by default is true,
and it is copied to hsave area as such.
This alone is not a big deal since on VMexit, GIF is always set to false,
regardless of what it was on VM entry. However in nested_svm_vmexit we
were first were setting GIF to false, but then we overwrite the control
fields with value from the hsave area. (including the nested GIF field
itself if GIF virtualization is enabled).
Now on normal vm entry this is not a problem, since GIF is usually false
prior to normal vm entry, and this is the value that copied to hsave,
and then restored, but this is not always the case when the nested state
is loaded as explained above.
To fix this issue, move svm_set_gif after we restore the L1 control
state in nested_svm_vmexit, so that even with wrong GIF in the
saved L1 control area, we still clear GIF as the spec says.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A build failure was raised by kbuild with the following error.
drivers/android/binder.c: Assembler messages:
drivers/android/binder.c:3861: Error: unrecognized keyword/register name `l.lwz ?ap,4(r24)'
drivers/android/binder.c:3866: Error: unrecognized keyword/register name `l.addi ?ap,r0,0'
The issue is with 64-bit get_user() calls on openrisc. I traced this to
a problem where in the internally in the get_user macros there is a cast
to long __gu_val this causes GCC to think the get_user call is 32-bit.
This binder code is really long and GCC allocates register r30, which
triggers the issue. The 64-bit get_user asm tries to get the 64-bit pair
register, which for r30 overflows the general register names and returns
the dummy register ?ap.
The fix here is to move the temporary variables into the asm macros. We
use a 32-bit __gu_tmp for 32-bit and smaller macro and a 64-bit tmp in
the 64-bit macro. The cast in the 64-bit macro has a trick of casting
through __typeof__((x)-(x)) which avoids the below warning. This was
barrowed from riscv.
arch/openrisc/include/asm/uaccess.h:240:8: warning: cast to pointer from integer of different size
I tested this in a small unit test to check reading between 64-bit and
32-bit pointers to 64-bit and 32-bit values in all combinations. Also I
ran make C=1 to confirm no new sparse warnings came up. It all looks
clean to me.
Link: https://lore.kernel.org/lkml/202008200453.ohnhqkjQ%25lkp@intel.com/
Signed-off-by: Stafford Horne <shorne@gmail.com>
Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Merge commit 26d05b368a ("Merge branch 'kvm-async-pf-int' into HEAD")
tried to adapt the new interrupt based async PF mechanism to the newly
introduced IDTENTRY magic but unfortunately it missed the fact that
DEFINE_IDTENTRY_SYSVEC() doesn't call ack_APIC_irq() on its own and
all DEFINE_IDTENTRY_SYSVEC() users have to call it manually.
As the result all multi-CPU KVM guest hang on boot when
KVM_FEATURE_ASYNC_PF_INT is present. The breakage went unnoticed because no
KVM userspace (e.g. QEMU) currently set it (and thus async PF mechanism
is currently disabled) but we're about to change that.
Fixes: 26d05b368a ("Merge branch 'kvm-async-pf-int' into HEAD")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200908135350.355053-3-vkuznets@redhat.com>
Tested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
According to SDM 27.2.4, Event delivery causes an APIC-access VM exit.
Don't report internal error and freeze guest when event delivery causes
an APIC-access exit, it is handleable and the event will be re-injected
during the next vmentry.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1597827327-25055-2-git-send-email-wanpengli@tencent.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
svm->next_rip is reset in svm_vcpu_run() only after calling
svm_exit_handlers_fastpath(), which will cause SVM's
skip_emulated_instruction() to write a stale RIP.
We can move svm_exit_handlers_fastpath towards the end of
svm_vcpu_run(). To align VMX with SVM, keep svm_complete_interrupts()
close as well.
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paul K. <kronenpj@kronenpj.dyndns.org>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
[Also move vmcb_mark_all_clean before any possible write to the VMCB.
- Paolo]
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl9bhgATHGlkcnlvbW92
QGdtYWlsLmNvbQAKCRBKf944AhHzi1mQB/9dvC/Bg1iHRZce0eIJT1USBqPL532t
qIDyh66LQZU+VvB3Fdbmc9DQnHFUe4iMmUaU4haxxMzgyw7KTogSRFDk/bZOiPiu
DfFqLHWL6fl9JBhhuwdF4o3QY6PkgjUBVo4lo+dVXZk4Spzcwub+4rCcsRE9hrk0
qL9fiV87OfL9x1neGrskKgWriTp53pQuCXNfOqBSl67VhJ6CaxG5zWNhiDq8pi3O
3u8t5JRdL7lQ98JS9rhTGC8ubM2Menn50jIIJIAI+Vy8uHY18lZIqYJ3Nay73VUT
YCFr6R7tEpK6nG3f8zN+9qWMq3WzhlS6wqyvsNH9/+XwVnwzrJPuz+VJ
=hdw2
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"Add missing capability checks in rbd, marked for stable"
* tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client:
rbd: require global CAP_SYS_ADMIN for mapping and unmapping
Pull i2c updates from Wolfram Sang:
"Usual driver bugfixes for the I2C subsystem"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: algo: pca: Reapply i2c bus settings after reset
i2c: npcm7xx: Fix timeout calculation
misc: eeprom: at24: register nvmem only after eeprom is ready to use
- Add CPU IDs of the TigerLake Desktop, RocketLake and AlderLake
chips to the Intel RAPL power capping driver (Zhang Rui).
- Add the missing energy model performance domain item to the
struct device kerneldoc comment (Randy Dunlap).
- Fix the struct powercap_control_type kerneldoc comment to match
the actual definition of that structure and add missing item to
the struct powercap_zone_ops kerneldoc comment (Amit Kucheria).
-----BEGIN PGP SIGNATURE-----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=8iut
-----END PGP SIGNATURE-----
Merge tag 'pm-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three pieces of documentation and add new CPU IDs to the
Intel RAPL power capping driver.
Specifics:
- Add CPU IDs of the TigerLake Desktop, RocketLake and AlderLake
chips to the Intel RAPL power capping driver (Zhang Rui).
- Add the missing energy model performance domain item to the struct
device kerneldoc comment (Randy Dunlap).
- Fix the struct powercap_control_type kerneldoc comment to match the
actual definition of that structure and add missing item to the
struct powercap_zone_ops kerneldoc comment (Amit Kucheria)"
* tag 'pm-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: make documentation reflect code
PM: <linux/device.h>: fix @em_pd kernel-doc warning
powercap/intel_rapl: add support for AlderLake
powercap/intel_rapl: add support for RocketLake
powercap/intel_rapl: add support for TigerLake Desktop
- NVMe pull request from Christoph:
- cancel async events before freeing them (David Milburn)
- revert a broken race fix (James Smart)
- fix command processing during resets (Sagi Grimberg)
- Fix a kyber crash with requeued flushes (Omar)
- Fix __bio_try_merge_page() same_page error for no merging (Ritesh)
-----BEGIN PGP SIGNATURE-----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=J16G
-----END PGP SIGNATURE-----
Merge tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Fix a regression in bdev partition locking (Christoph)
- NVMe pull request from Christoph:
- cancel async events before freeing them (David Milburn)
- revert a broken race fix (James Smart)
- fix command processing during resets (Sagi Grimberg)
- Fix a kyber crash with requeued flushes (Omar)
- Fix __bio_try_merge_page() same_page error for no merging (Ritesh)
* tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block:
block: Set same_page to false in __bio_try_merge_page if ret is false
nvme-fabrics: allow to queue requests for live queues
block: only call sched requeue_request() for scheduled requests
nvme-tcp: cancel async events before freeing event struct
nvme-rdma: cancel async events before freeing event struct
nvme-fc: cancel async events before freeing event struct
nvme: Revert: Fix controller creation races with teardown flow
block: restore a specific error code in bdev_del_partition
There's some driver specific fixes here plus one core fix for memory
leaks that could be triggered by a potential race condition when
cleaning up after we have split transfers to fit into what the
controller can support.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl9bavQTHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0JuiCACAZcBZFb6hshADoyt9YCCjQrD1+khD
AzkSuDOE6UP3SGOEBx/29QL1kE7j0V9ARC0XLVZutzZhUXbIvJ1ulgUqGgeQSnLz
ZvO/rIJiC+lsKIZQANgOBjOzWhfRzYXPOwfQwtsta5NfrP5ZafKJ5iG2C0xjnETr
Arybcx8D/EDZWKQ9PntM246J/jlmK+dsnK6wouqHlP2ulo3O4UQUxN0D5SjUC0RW
3xMH165RvIqwu0L5iCUWmzQhPuxuhk2QWpt48k3dPghmNx9XNGJuHDRI0THRxIp/
2mNRXiK0qKma4AwWO7+JJshyeXufR07HNMYfkL/d159K6QOsu1Uaq4z4
=d1ma
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"There's some driver specific fixes here plus one core fix for memory
leaks that could be triggered by a potential race condition when
cleaning up after we have split transfers to fit into what the
controller can support"
* tag 'spi-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: stm32: fix pm_runtime_get_sync() error checking
spi: Fix memory leak on splited transfers
spi: spi-cadence-quadspi: Fix mapping of buffers for DMA reads
spi: stm32: Rate-limit the 'Communication suspended' message
spi: spi-loopback-test: Fix out-of-bounds read
spi: spi-cadence-quadspi: Populate get_name() interface
MAINTAINERS: add myself as maintainer for spi-fsl-dspi driver
The biggest set of fixes here is those from Michał Mirosław fixing some
locking issues with coupled regulators that are triggered in cases where
a coupled regulator is used by a device involved in fs_reclaim like eMMC
storage. These are relatively serious for the affected systems, though
the circumstances where they trigger are very rare.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl9baDITHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0NAOCACGwc1Rxsr9cMDY5vQS7AHzfPVRdoQJ
Z9KIOQT9ER0hFHRNh1/t1n/p4DcK+3ke0MH/R/VndijvePJgHyL01Bsjq92iDiIy
b80nDJwRwLWWdvKAPG5JklVK8pL/6LxaC9eL8zK93Hm4fGkNJzBi7jF2++jep/tB
2jRM4Vrq8B0dkh/jPQMscl4Z66purIiyKLJjy1QFjXXq0/jkjZizURy+aofS3uJD
0vebim9OI7z0H4g6cflJrHUAuDraNmGCfGAyUMH7AESJlUGNRk7BzNYT51tLVYqG
ithNZDh/AbWhGzntuUUKNlM4D8p26FNJmU51crh33kBH3va737dvc/BT
=3fwP
-----END PGP SIGNATURE-----
Merge tag 'regulator-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"The biggest set of fixes here is those from Michał Mirosław fixing
some locking issues with coupled regulators that are triggered in
cases where a coupled regulator is used by a device involved in
fs_reclaim like eMMC storage.
These are relatively serious for the affected systems, though the
circumstances where they trigger are very rare"
* tag 'regulator-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: pwm: Fix machine constraints application
regulator: core: Fix slab-out-of-bounds in regulator_unlock_recursive()
regulator: remove superfluous lock in regulator_resolve_coupling()
regulator: cleanup regulator_ena_gpio_free()
regulator: plug of_node leak in regulator_register()'s error path
regulator: push allocation in set_consumer_device_supply() out of lock
regulator: push allocations in create_regulator() outside of lock
regulator: push allocation in regulator_ena_gpio_request() out of lock
regulator: push allocation in regulator_init_coupling() outside of lock
regulator: fix spelling mistake "Cant" -> "Can't"
regulator: cros-ec-regulator: Add NULL test for devm_kmemdup call
Even without in-kernel LAPIC we should allow writing '0' to
MSR_KVM_ASYNC_PF_EN as we're not enabling the mechanism. In
particular, QEMU with 'kernel-irqchip=off' fails to start
a guest with
qemu-system-x86_64: error: failed to set MSR 0x4b564d02 to 0x0
Fixes: 9d3c447c72 ("KVM: X86: Fix async pf caused null-ptr-deref")
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200911093147.484565-1-vkuznets@redhat.com>
[Actually commit the version proposed by Sean Christopherson. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There may be many encrypted regions that need to be unregistered when a
SEV VM is destroyed. This can lead to soft lockups. For example, on a
host running 4.15:
watchdog: BUG: soft lockup - CPU#206 stuck for 11s! [t_virtual_machi:194348]
CPU: 206 PID: 194348 Comm: t_virtual_machi
RIP: 0010:free_unref_page_list+0x105/0x170
...
Call Trace:
[<0>] release_pages+0x159/0x3d0
[<0>] sev_unpin_memory+0x2c/0x50 [kvm_amd]
[<0>] __unregister_enc_region_locked+0x2f/0x70 [kvm_amd]
[<0>] svm_vm_destroy+0xa9/0x200 [kvm_amd]
[<0>] kvm_arch_destroy_vm+0x47/0x200
[<0>] kvm_put_kvm+0x1a8/0x2f0
[<0>] kvm_vm_release+0x25/0x30
[<0>] do_exit+0x335/0xc10
[<0>] do_group_exit+0x3f/0xa0
[<0>] get_signal+0x1bc/0x670
[<0>] do_signal+0x31/0x130
Although the CLFLUSH is no longer issued on every encrypted region to be
unregistered, there are no other changes that can prevent soft lockups for
very large SEV VMs in the latest kernel.
Periodically schedule if necessary. This still holds kvm->lock across the
resched, but since this only happens when the VM is destroyed this is
assumed to be acceptable.
Signed-off-by: David Rientjes <rientjes@google.com>
Message-Id: <alpine.DEB.2.23.453.2008251255240.2987727@chino.kir.corp.google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
MIPS defines two kvm types:
#define KVM_VM_MIPS_TE 0
#define KVM_VM_MIPS_VZ 1
In Documentation/virt/kvm/api.rst it is said that "You probably want to
use 0 as machine type", which implies that type 0 be the "automatic" or
"default" type. And, in user-space libvirt use the null-machine (with
type 0) to detect the kvm capability, which returns "KVM not supported"
on a VZ platform.
I try to fix it in QEMU but it is ugly:
https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg05629.html
And Thomas Huth suggests me to change the definition of kvm type:
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg03281.html
So I define like this:
#define KVM_VM_MIPS_AUTO 0
#define KVM_VM_MIPS_VZ 1
#define KVM_VM_MIPS_TE 2
Since VZ and TE cannot co-exists, using type 0 on a TE platform will
still return success (so old user-space tools have no problems on new
kernels); the advantage is that using type 0 on a VZ platform will not
return failure. So, the only problem is "new user-space tools use type
2 on old kernels", but if we treat this as a kernel bug, we can backport
this patch to old stable kernels.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1599734031-28746-1-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- sdio: Restore ~20% performance drop for SDHCI drivers, by using
mmc_pre_req() and mmc_post_req() for SDIO requests.
MMC host:
- sdhci-of-esdhc: Fix support for erratum eSDHC7
- mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset
- sdhci-msm: Use retries to fix tuning
- sdhci-acpi: Fix resume for eMMC HS400 mode
-----BEGIN PGP SIGNATURE-----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=0J6S
-----END PGP SIGNATURE-----
Merge tag 'mmc-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- sdio: Restore ~20% performance drop for SDHCI drivers, by using
mmc_pre_req() and mmc_post_req() for SDIO requests.
MMC host:
- sdhci-of-esdhc: Fix support for erratum eSDHC7
- mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset
- sdhci-msm: Use retries to fix tuning
- sdhci-acpi: Fix resume for eMMC HS400 mode"
* tag 'mmc-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdio: Use mmc_pre_req() / mmc_post_req()
mmc: sdhci-of-esdhc: Don't walk device-tree on every interrupt
mmc: mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset
mmc: sdhci-msm: Add retries when all tuning phases are found valid
mmc: sdhci-acpi: Clear amd_sdhci_host on reset
When kvm_mmu_get_page() gets a page with unsynced children, the spt
pagetable is unsynchronized with the guest pagetable. But the
guest might not issue a "flush" operation on it when the pagetable
entry is changed from zero or other cases. The hypervisor has the
responsibility to synchronize the pagetables.
KVM behaved as above for many years, But commit 8c8560b833
("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
inadvertently included a line of code to change it without giving any
reason in the changelog. It is clear that the commit's intention was to
change KVM_REQ_TLB_FLUSH -> KVM_REQ_TLB_FLUSH_CURRENT, so we don't
needlessly flush other contexts; however, one of the hunks changed
a nearby KVM_REQ_MMU_SYNC instead. This patch changes it back.
Link: https://lore.kernel.org/lkml/20200320212833.3507-26-sean.j.christopherson@intel.com/
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20200902135421.31158-1-jiangshanlai@gmail.com>
fixes: 8c8560b833 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A minor fix for the update of VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL field
in exit_ctls_high.
Fixes: 03a8871add ("KVM: nVMX: Expose load IA32_PERF_GLOBAL_CTRL
VM-{Entry,Exit} control")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200828085622.8365-5-chenyi.qiang@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Steven Rostedt (VMware)
Masami Hiramatsu
Jason Yan
Tom Rix
Tobias Klauser
Sebastian Andrzej Siewior
Adrian Hunter
Miroslav Benes
Linus Torvalds
Olof Johansson
Maxim Levitsky
Stafford Horne
Vitaly Kuznetsov
Wanpeng Li
Wanpeng Li
David Rientjes
Huacai Chen
Lai Jiangshan
Chenyi Qiang