Make sclp's con_drop sysfs attribute also writable, and allow to
change its value during runtime. This way handling of sclp console
drop handling is consistent with the 3215 device driver.
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Use sysfs_emit() for all sclp sysfs show functions, which is the
current standard way to generate output strings.
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Use kstrobool() to parse sclp_con_drop parameter. This way handling of
valid values for the sclp_con_drop parameter is identical to the
con3215_drop parameter. In particular this allows to pass values like
"yes" and "true", which was not possible before.
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
If CONFIG_TN3270_CONSOLE is not enabled clang emits the following warning:
drivers/s390/char/raw3270.c:114:19:
error: unused function 'raw3270_state_final' [-Werror,-Wunused-function]
static inline int raw3270_state_final(struct raw3270 *rp)
Get rid of this warning by making raw3270_state_final() only
available if CONFIG_TN3270_CONSOLE is enabled.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
clang warns about an unused insn cache ops function:
arch/s390/kernel/kprobes.c:34:1:
error: unused function 'is_kprobe_s390_insn_slot' [-Werror,-Wunused-function]
DEFINE_INSN_CACHE_OPS(s390_insn);
^
./include/linux/kprobes.h:335:20: note: expanded from macro 'DEFINE_INSN_CACHE_OPS'
static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
^
<scratch space>:88:1: note: expanded from here
is_kprobe_s390_insn_slot
^
Move the definition to a private header file, which is also similar to
the generic insn cache ops.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
clang warns about an incompatible function type cast:
CC arch/s390/kernel/debug.o
arch/s390/kernel/debug.c:142:2: error: cast from 'int (*)(debug_info_t *, struct debug_view *, char *, debug_sprintf_entry_t *)' (aka 'int (*)(struct debug_info *, struct debug_view *, char *, debug_sprintf_entry_t *)') to 'debug_format_proc_t *' (aka 'int (*)(struct debug_info *, struct debug_view *, char *, const char *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
(debug_format_proc_t *)&debug_sprintf_format_fn,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Get rid of this warning by changing debug_sprintf_format_fn() so it matches
the debug_format_proc_t function type, and do the cast of the last
parameter within the function itself.
This is the standard way of handling such cases anyway.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
No point in doing another lookup of irq_data, it's already provided as
an argument.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/linux-s390/8735aoui07.ffs@tglx/
[agordeev@linux.ibm.com added Link tag]
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.
In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.
While at it, include the corresponding header file (<linux/kstrtox.h>)
Link: https://lore.kernel.org/all/cover.1667336095.git.christophe.jaillet@wanadoo.fr/
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
s390 allows to enable CONFIG_NUMA, mainly to enable a couple of system
calls which are only present if NUMA is enabled. The NUMA specific system
calls are required by a couple of applications, which wouldn't work if the
system calls wouldn't be present.
The NUMA implementation itself maps all CPUs and memory to node 0. A
special case is the generic percpu setup code, which doesn't expect an s390
like implementation and therefore emits a message/warning:
"percpu: cpu 0 has no node -1 or node-local memory".
In order to get rid of this message, and also to provide sane CPU to node
and CPU distance mappings implement a minimal setup_per_cpu_areas()
function, which is very close to the generic variant.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The generic vga.h contains a couple of defines, which do no harm on
s390. Therefore use the generic version and git rid of the s390
specific empty header file.
Suggested-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Use generic shmparam.h header file since the contents are identical.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Use the generic bugs.h header file. Except for an
excellent comment the header files are identical.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
There is no serial driver on s390, especially none that relies on a
bogus BASE_BAUD define. Therefore use the generic header file.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP for s390.
With this, vmemmap pages used to back struct pages for compound tail
pages of hugetlb pages are freed and remapped to compound head page
frame as RO, see also Documentation/vm/vmemmap_dedup.rst.
For 1M hugetlb pages, this results in freeing 3 of 4 vmemmap pages,
saving 12K of memory for each 1M hugetlb page (~1.2%).
/sys/kernel/debug/kernel_page_tables will show the impact:
---[ vmemmap Area Start ]---
[...]
0x0000037202d84000-0x0000037202d85000 4K PTE RW NX
0x0000037202d85000-0x0000037202d88000 12K PTE RO NX
For 2G hugetlb pages, this results in freeing 8191 of 8192 vmemmap
pages, saving 32764K of memory for each 2G hugetlb page (~1.6%)
/sys/kernel/debug/kernel_page_tables will show the impact:
---[ vmemmap Area Start ]---
[...]
0x000003720a000000-0x000003720a001000 4K PTE RW NX
0x000003720a001000-0x000003720c000000 32764K PTE RO NX
The memory savings come with some costs:
- vmemmap mapping for compound hugetlb pages is not a PMD mapping any
more, but split to 4K PTE mappings, and it will not be coalesced back
to PMD mapping after freeing hugetlb pages from the pool.
Apart from theoretical performance impact, this will also (slightly)
relativize the memory savings because of additional 2K PTE pagetable
allocations.
- Workload using "on the fly" hugetlb allocations via
"nr_overcommit_hugepages" instead of using the hugetlb pool via
"nr_hugepages" will suffer from considerably increased fault handling
time, see also description from commit 78f39084b4
("mm: hugetlb_vmemmap: add hugetlb_optimize_vmemmap sysctl").
- Freeing hugetlb pages from the pool will require re-allocation of the
freed struct pages, and therefore needs some memory available to the
kernel. This might fail in memory constrained scenarios.
- For the same reason, memory offline might fail even for ZONE_MOVABLE
when hugetlb pages are present (but not for s390, since we do not
support ARCH_ENABLE_HUGEPAGE_MIGRATION, and therefore cannot have
hugetlb pages in ZONE_MOVABLE).
- General increased complexity and overhead in kernel handling of
compound (head) pages.
Therefore, this feature is disabled by default, and has to be enabled
explicitly either by adding "hugetlb_free_vmemmap=on" kernel parameter,
or during run-time via "/proc/sys/vm/hugetlb_optimize_vmemmap" sysctl.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Rename structure member users to active_events to make it consistent
with PMU pai_ext. Also use the same prefix syntax for increment and
decrement operators in both PMUs.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Rework the mapped buffer reference count in PMU pai_crypto
to match the same technique as in PMU pai_ext.
This simplifies the logic.
Do not count the individual number of counter and sampling
processes. Remember the type of access and the total number of
references to the buffer.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Move enum definition to header file. This is done in preparation
for a follow on patch where this enum will be used in another source
file.
Also change the enum name from paiext_mode to paievt_mode
to indicate this enum is now used for several events.
Make naming consistent and rename PAI_MODE_COUNTER to PAI_MODE_COUNTING.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Adjust white space according to coding guidelines.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Using z/VM the 3270 terminal emulator also emulates an IBM 3215 console
which outputs line by line. When the screen is full, the console enters
the MORE... state and waits for the operator to confirm the data
on the screen by pressing a clear key. If this does not happen in the
default time frame (currently 50 seconds) the console enters the HOLDING
state.
It then waits another time frame (currently 10 seconds) before the output
continues on the next screen. When the operator presses the clear key
during these wait times, the output continues immediately.
This may lead to a very long boot time when the console
has to print many messages, also the system may hang because of the
console's limited buffer space and the system waits for the console
output to drain and finally to finish. This problem can only occur
when a terminal emulator is actually connected to the 3215 console
driver. If not z/VM simply drops console output.
Remedy this rare situation and add a kernel boot command line parameter
con3215_drop. It can be set to 0 (do not drop) or 1 (do drop) which is
the default. This instructs the kernel drop console data when the
console buffer is full. This speeds up the boot time considerable and
also does not hang the system anymore.
Add a sysfs attribute file for console IBM 3215 named con_drop.
This allows for changing the behavior after the boot, for example when
during interactive debugging a panic/crash is expected.
Here is a test of the new behavior using the following test program:
#/bin/bash
declare -i cnt=4
mode=$(cat /sys/bus/ccw/drivers/3215/con_drop)
[ $mode = yes ] && cnt=25
echo "cons_drop $(cat /sys/bus/ccw/drivers/3215/con_drop)"
echo "vmcp term more 5 2"
vmcp term more 5 2
echo "Run $cnt iterations of "'echo t > /proc/sysrq-trigger'
for i in $(seq $cnt)
do
echo "$i. command 'echo t > /proc/sysrq-trigger' at $(date +%F,%T)"
echo t > /proc/sysrq-trigger
sleep 1
done
echo "droptest done" > /dev/kmsg
#
Output with sysfs attribute con_drop set to 1:
# ./droptest.sh
cons_drop yes
vmcp term more 5 2
Run 25 iterations of echo t > /proc/sysrq-trigger
1. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:09
2. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:10
3. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:11
4. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:12
5. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:13
6. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:14
7. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:15
8. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:16
9. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:17
10. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:18
11. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:19
12. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:20
13. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:21
14. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:22
15. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:23
16. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:24
17. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:25
18. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:26
19. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:27
20. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:28
21. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:29
22. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:30
23. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:31
24. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:32
25. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:15:33
#
There are no hangs anymore.
Output with sysfs attribute con_drop set to 0 and identical
setting for z/VM console 'term more 5 2'. Sometimes hitting the
clear key at the x3270 console to progress output.
# ./droptest.sh
cons_drop no
vmcp term more 5 2
Run 4 iterations of echo t > /proc/sysrq-trigger
1. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:20:58
2. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:24:32
3. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:28:04
4. command 'echo t > /proc/sysrq-trigger' at 2022-09-02,10:31:37
#
Details:
Enable function raw3215_write() to handle tab expansion and newlines
and feed it with input not larger than the console buffer of 65536
bytes. Function raw3125_putchar() just forwards its character for
output to raw3215_write().
This moves tab to blank conversion to one function raw3215_write()
which also does call raw3215_make_room() to wait for enough free
buffer space.
Function handle_write() loops over all its input and segments input
into chunks of console buffer size (should the input be larger).
Rework tab expansion handling logic to avoid code duplication.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
The functions con3215_write() and tty3215_write() have nearly
identical function bodies and a slightly different function prototype.
Create function handle_write() to handle the common function
body and maintain the function prototypes.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc
ARM:
- Fix a bug preventing restoring an ITS containing mappings
for very large and very sparse device topology
- Work around a relocation handling error when compiling
the nVHE object with profile optimisation
- Fix for stage-2 invalidation holding the VM MMU lock
for too long by limiting the walk to the largest
block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
x86:
- add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
selftests:
- synchronize includes between include/uapi and tools/include/uapi
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"RISC-V:
- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc
ARM:
- Fix a bug preventing restoring an ITS containing mappings for very
large and very sparse device topology
- Work around a relocation handling error when compiling the nVHE
object with profile optimisation
- Fix for stage-2 invalidation holding the VM MMU lock for too long
by limiting the walk to the largest block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
x86:
- add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
selftests:
- synchronize includes between include/uapi and tools/include/uapi"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
tools: include: sync include/api/linux/kvm.h
KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
kvm: Add support for arch compat vm ioctls
RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
RISC-V: Fix compilation without RISCV_ISA_ZICBOM
KVM: arm64: vgic: Fix exit condition in scan_its_table()
KVM: arm64: nvhe: Fix build with profile optimization
KVM: selftests: Fix number of pages for memory slot in memslot_modification_stress_test
KVM: arm64: selftests: Fix multiple versions of GIC creation
KVM: arm64: Enable stack protection and branch profiling for VHE
KVM: arm64: Limit stage2_apply_range() batch size to largest block
KVM: arm64: Work out supported block level at compile time
This reverts commit 72a9585972.
It broke reboots on big-endian MIPS and MIPS64 malta QEMU instances,
which use the syscon driver. Little-endian is not effected, which means
likely it's important to handle regmap_get_val_endian() in this function
after all.
Fixes: 72a9585972 ("mfd: syscon: Remove repetition of the regmap_get_val_endian()")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Lee Jones <lee@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Rework how SIGTRAPs get delivered to events to address a bunch of
problems with it. Add a selftest for that too
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Merge tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Fix raw data handling when perf events are used in bpf
- Rework how SIGTRAPs get delivered to events to address a bunch of
problems with it. Add a selftest for that too
* tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bpf: Fix sample_flags for bpf_perf_event_output
selftests/perf_events: Add a SIGTRAP stress test with disables
perf: Fix missing SIGTRAPs
Intel perf LBR
- A CFI fix to ftrace along with a simplification
- Adjust handling of zero capacity bit mask for resctrl cache allocation
on AMD
- A fix to the AMD microcode loader to attempt patch application on
every logical thread
- A couple of topology fixes to handle CPUID leaf 0x1f enumeration info
properly
- Drop a -mabi=ms compiler option check as both compilers support it now
anyway
- A couple of fixes to how the initial, statically allocated FPU buffer
state is setup and its interaction with dynamic states at runtime
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Merge tag 'x86_urgent_for_v6.0_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"As usually the case, right after a major release, the tip urgent
branches accumulate a couple more fixes than normal. And here is the
x86, a bit bigger, urgent pile.
- Use the correct CPU capability clearing function on the error path
in Intel perf LBR
- A CFI fix to ftrace along with a simplification
- Adjust handling of zero capacity bit mask for resctrl cache
allocation on AMD
- A fix to the AMD microcode loader to attempt patch application on
every logical thread
- A couple of topology fixes to handle CPUID leaf 0x1f enumeration
info properly
- Drop a -mabi=ms compiler option check as both compilers support it
now anyway
- A couple of fixes to how the initial, statically allocated FPU
buffer state is setup and its interaction with dynamic states at
runtime"
* tag 'x86_urgent_for_v6.0_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly
perf/x86/intel/lbr: Use setup_clear_cpu_cap() instead of clear_cpu_cap()
ftrace,kcfi: Separate ftrace_stub() and ftrace_stub_graph()
x86/ftrace: Remove ftrace_epilogue()
x86/resctrl: Fix min_cbm_bits for AMD
x86/microcode/AMD: Apply the patch early on every logical thread
x86/topology: Fix duplicated core ID within a package
x86/topology: Fix multiple packages shown on a single-package system
hwmon/coretemp: Handle large core ID value
x86/Kconfig: Drop check for -mabi=ms for CONFIG_EFI_STUB
x86/fpu: Exclude dynamic states from init_fpstate
x86/fpu: Fix the init_fpstate size check with the actual size
x86/fpu: Configure init_fpstate attributes orderly
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Merge tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux
Pull io_uring follow-up from Jens Axboe:
"Currently the zero-copy has automatic fallback to normal transmit, and
it was decided that it'd be cleaner to return an error instead if the
socket type doesn't support it.
Zero-copy does work with UDP and TCP, it's more of a future proofing
kind of thing (eg for samba)"
* tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux:
io_uring/net: fail zc sendmsg when unsupported by socket
io_uring/net: fail zc send when unsupported by socket
net: flag sockets supporting msghdr originated zerocopy
- corsair-psu: Fix typo in USB id description, and add USB ID for new PSU
- pwm-fan: Fix fan power handling when disabling fan control
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Merge tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- corsair-psu: Fix typo in USB id description, and add USB ID for new
PSU
- pwm-fan: Fix fan power handling when disabling fan control
* tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (corsair-psu) Add USB id of the new HX1500i psu
hwmon: (pwm-fan) Explicitly switch off fan power when setting pwm1_enable to 0
hwmon: (corsair-psu) fix typo in USB id description
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Merge tag 'pci-v6.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fixes from Bjorn Helgaas:
- Revert a simplification that broke pci-tegra due to a masking error
- Update MAINTAINERS for Kishon's email address change and TI
DRA7XX/J721E maintainer change
* tag 'pci-v6.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
MAINTAINERS: Update Kishon's email address in PCI endpoint subsystem
MAINTAINERS: Add Vignesh Raghavendra as maintainer of TI DRA7XX/J721E PCI driver
Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"
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Merge tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull missed media updates from Mauro Carvalho Chehab:
"It seems I screwed-up my previous pull request: it ends up that only
half of the media patches that were in linux-next got merged in -rc1.
The script which creates the signed tags silently failed due to
5.19->6.0 so it ended generating a tag with incomplete stuff.
So here are the missing parts:
- a DVB core security fix
- lots of fixes and cleanups for atomisp staging driver
- old drivers that are VB1 are being moved to staging to be
deprecated
- several driver updates - mostly for embedded systems, but there are
also some things addressing issues with some PC webcams, in the UVC
video driver"
* tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (163 commits)
media: sun6i-csi: Move csi buffer definition to main header file
media: sun6i-csi: Introduce and use video helper functions
media: sun6i-csi: Add media ops with link notify callback
media: sun6i-csi: Remove controls handler from the driver
media: sun6i-csi: Register the media device after creation
media: sun6i-csi: Pass and store csi device directly in video code
media: sun6i-csi: Tidy up video code
media: sun6i-csi: Tidy up v4l2 code
media: sun6i-csi: Tidy up Kconfig
media: sun6i-csi: Use runtime pm for clocks and reset
media: sun6i-csi: Define and use variant to get module clock rate
media: sun6i-csi: Always set exclusive module clock rate
media: sun6i-csi: Tidy up platform code
media: sun6i-csi: Refactor main driver data structures
media: sun6i-csi: Define and use driver name and (reworked) description
media: cedrus: Add a Kconfig dependency on RESET_CONTROLLER
media: sun8i-rotate: Add a Kconfig dependency on RESET_CONTROLLER
media: sun8i-di: Add a Kconfig dependency on RESET_CONTROLLER
media: sun4i-csi: Add a Kconfig dependency on RESET_CONTROLLER
media: sun6i-csi: Add a Kconfig dependency on RESET_CONTROLLER
...
If a protocol doesn't support zerocopy it will silently fall back to
copying. This type of behaviour has always been a source of troubles
so it's better to fail such requests instead.
Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2db3c7f16bb6efab4b04569cd16e6242b40c5cb3.1666346426.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We need an efficient way in io_uring to check whether a socket supports
zerocopy with msghdr provided ubuf_info. Add a new flag into the struct
socket flags fields.
Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/3dafafab822b1c66308bb58a0ac738b1e3f53f74.1666346426.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Provide a definition of KVM_CAP_DIRTY_LOG_RING_ACQ_REL.
Fixes: 17601bfed9 ("KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option")
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The KVM_X86_SET_MSR_FILTER ioctls contains a pointer in the passed in
struct which means it has a different struct size depending on whether
it gets called from 32bit or 64bit code.
This patch introduces compat code that converts from the 32bit struct to
its 64bit counterpart which then gets used going forward internally.
With this applied, 32bit QEMU can successfully set MSR bitmaps when
running on 64bit kernels.
Reported-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Fixes: 1a155254ff ("KVM: x86: Introduce MSR filtering")
Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-4-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In the next patch we want to introduce a second caller to
set_msr_filter() which constructs its own filter list on the stack.
Refactor the original function so it takes it as argument instead of
reading it through copy_from_user().
Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-3-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We will introduce the first architecture specific compat vm ioctl in the
next patch. Add all necessary boilerplate to allow architectures to
override compat vm ioctls when necessary.
Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-2-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Fix a bug preventing restoring an ITS containing mappings
for very large and very sparse device topology
- Work around a relocation handling error when compiling
the nVHE object with profile optimisation
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Merge tag 'kvmarm-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.1, take #2
- Fix a bug preventing restoring an ITS containing mappings
for very large and very sparse device topology
- Work around a relocation handling error when compiling
the nVHE object with profile optimisation
- Fix for stage-2 invalidation holding the VM MMU lock
for too long by limiting the walk to the largest
block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
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Merge tag 'kvmarm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.1, take #1
- Fix for stage-2 invalidation holding the VM MMU lock
for too long by limiting the walk to the largest
block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
Fix the control CPU selection in the intel_powerclamp thermal driver.
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Merge tag 'thermal-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fix from Rafael Wysocki:
"This fixes the control CPU selection in the intel_powerclamp thermal
driver"
* tag 'thermal-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel_powerclamp: Use first online CPU as control_cpu
- Fix module loading in the Tegra124 cpufreq driver (Jon Hunter).
- Fix memory leak and update to read-only region in the qcom
cpufreq driver (Fabien Parent).
- Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
Yang Yingliang).
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Merge tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix some issues and clean up code in ARM cpufreq drivers.
Specifics:
- Fix module loading in the Tegra124 cpufreq driver (Jon Hunter)
- Fix memory leak and update to read-only region in the qcom cpufreq
driver (Fabien Parent)
- Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
Yang Yingliang)"
* tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: sun50i: Switch to use dev_err_probe() helper
cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper
cpufreq: imx6q: Switch to use dev_err_probe() helper
cpufreq: dt: Switch to use dev_err_probe() helper
cpufreq: qcom: remove unused parameter in function definition
cpufreq: qcom: fix writes in read-only memory region
cpufreq: qcom: fix memory leak in error path
cpufreq: tegra194: Fix module loading
- Add missing device reference counting to acpi_get_pci_dev() after
changing it recently (Rafael Wysocki).
- Fix resource list walk in acpi_dma_get_range() (Robin Murphy).
- Add IRQ override quirk for LENOVO IdeaPad and extend the IRQ
override warning message (Jiri Slaby).
- Fix integer overflow in ghes_estatus_pool_init() (Ashish Kalra).
- Fix multiple error records handling in one of the ACPI extlog driver
code paths (Tony Luck).
- Prune DSDT override documentation from index after dropping it (Bagas
Sanjaya).
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Merge tag 'acpi-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix issues introduced during this merge window (ACPI/PCI, device
enumeration and documentation) and some other ones found recently.
Specifics:
- Add missing device reference counting to acpi_get_pci_dev() after
changing it recently (Rafael Wysocki)
- Fix resource list walk in acpi_dma_get_range() (Robin Murphy)
- Add IRQ override quirk for LENOVO IdeaPad and extend the IRQ
override warning message (Jiri Slaby)
- Fix integer overflow in ghes_estatus_pool_init() (Ashish Kalra)
- Fix multiple error records handling in one of the ACPI extlog
driver code paths (Tony Luck)
- Prune DSDT override documentation from index after dropping it
(Bagas Sanjaya)"
* tag 'acpi-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: scan: Fix DMA range assignment
ACPI: PCI: Fix device reference counting in acpi_get_pci_dev()
ACPI: resource: note more about IRQ override
ACPI: resource: do IRQ override on LENOVO IdeaPad
ACPI: extlog: Handle multiple records
ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()
Documentation: ACPI: Prune DSDT override documentation from index
- A pair of fixes for the EFI variable store refactor that landed in
v6.0
- A couple of fixes for issue that were introduced during the merge
window
- Back out some changes related to EFI zboot signing - we'll add a
better solution for this during the next cycle
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Merge tag 'efi-fixes-for-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
- fixes for the EFI variable store refactor that landed in v6.0
- fixes for issues that were introduced during the merge window
- back out some changes related to EFI zboot signing - we'll add a
better solution for this during the next cycle
* tag 'efi-fixes-for-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: runtime: Don't assume virtual mappings are missing if VA == PA == 0
efi: libstub: Fix incorrect payload size in zboot header
efi: libstub: Give efi_main() asmlinkage qualification
efi: efivars: Fix variable writes without query_variable_store()
efi: ssdt: Don't free memory if ACPI table was loaded successfully
efi: libstub: Remove zboot signing from build options
