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pressure:
SGX uses normal RAM allocated from special shmem files as backing storage
when it runs out of SGX memory (EPC). The code was overly aggressive when
freeing shmem pages and was inadvertently freeing perfectly good data.
This resulted in failures in the SGX instructions used to swap data back
into SGX memory.
This turned out to be really hard to trigger in mainline. It was
originally encountered testing the out-of-tree "SGX2" patches, but later
reproduced on mainline.
Fix the data loss by being more careful about truncating pages out of
the backing storage and more judiciously setting pages dirty.
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Merge tag 'x86_sgx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX updates from Dave Hansen:
"A set of patches to prevent crashes in SGX enclaves under heavy memory
pressure:
SGX uses normal RAM allocated from special shmem files as backing
storage when it runs out of SGX memory (EPC). The code was overly
aggressive when freeing shmem pages and was inadvertently freeing
perfectly good data. This resulted in failures in the SGX instructions
used to swap data back into SGX memory.
This turned out to be really hard to trigger in mainline. It was
originally encountered testing the out-of-tree "SGX2" patches, but
later reproduced on mainline.
Fix the data loss by being more careful about truncating pages out of
the backing storage and more judiciously setting pages dirty"
* tag 'x86_sgx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Ensure no data in PCMD page after truncate
x86/sgx: Fix race between reclaimer and page fault handler
x86/sgx: Obtain backing storage page with enclave mutex held
x86/sgx: Mark PCMD page as dirty when modifying contents
x86/sgx: Disconnect backing page references from dirty status
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Merge tag 'x86_vdso_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 vdso update from Borislav Petkov:
- Get rid of CONFIG_LEGACY_VSYSCALL_EMULATE as nothing should be using
it anymore
* tag 'x86_vdso_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE
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Merge tag 'x86_microcode_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loader update from Borislav Petkov:
- Make CPU vendor dependency explicit against random config build
failures
* tag 'x86_microcode_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode: Add explicit CPU vendor dependency
- Remove function export
- Correct asm constraint
- Fix __setup handlers retval
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Merge tag 'x86_misc_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Borislav Petkov:
"A variety of fixes which don't fit any other tip bucket:
- Remove unnecessary function export
- Correct asm constraint
- Fix __setup handlers retval"
* tag 'x86_misc_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
x86: Fix return value of __setup handlers
x86/delay: Fix the wrong asm constraint in delay_loop()
x86/amd_nb: Unexport amd_cache_northbridges()
- Make life miserable for apps using split locks by slowing them down
considerably while the rest of the system remains responsive. The hope
is it will hurt more and people will really fix their misaligned locks
apps. As a result, free a TIF bit.
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Merge tag 'x86_splitlock_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 splitlock updates from Borislav Petkov:
- Add Raptor Lake to the set of CPU models which support splitlock
- Make life miserable for apps using split locks by slowing them down
considerably while the rest of the system remains responsive. The
hope is it will hurt more and people will really fix their misaligned
locks apps. As a result, free a TIF bit.
* tag 'x86_splitlock_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/split_lock: Enable the split lock feature on Raptor Lake
x86/split-lock: Remove unused TIF_SLD bit
x86/split_lock: Make life miserable for split lockers
allocated and are present when later accessed ("nosmp" and x2APIC)
- Clarify the bit overlap between an old APIC and a modern, integrated one
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Merge tag 'x86_apic_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 APIC updates from Borislav Petkov:
- Always do default APIC routing setup so that cpumasks are properly
allocated and are present when later accessed ("nosmp" and x2APIC)
- Clarify the bit overlap between an old APIC and a modern, integrated
one
* tag 'x86_apic_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Do apic driver probe for "nosmp" use case
x86/apic: Clarify i82489DX bit overlap in APIC_LVT0
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Merge tag 'x86_kdump_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 kdump fixlet from Borislav Petkov:
- A single debug message fix
* tag 'x86_kdump_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/crash: Fix minor typo/bug in debug message
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Merge tag 'x86_platform_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Borislav Petkov:
- A couple of changes enabling SGI UV5 support
* tag 'x86_platform_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/uv: Log gap hole end size
x86/platform/uv: Update TSC sync state for UV5
x86/platform/uv: Update NMI Handler for UV5
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Merge tag 'x86_mm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm fixlet from Borislav Petkov:
- A sparse address space annotation fix
* tag 'x86_mm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fault: Cast an argument to the proper address space in prefetch()
thus allow for guests to use this compacted XSTATE variant when the
hypervisor exports that support
- A variable shadowing cleanup
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Merge tag 'x86_fpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fpu updates from Borislav Petkov:
- Add support for XSAVEC - the Compacted XSTATE saving variant - and
thus allow for guests to use this compacted XSTATE variant when the
hypervisor exports that support
- A variable shadowing cleanup
* tag 'x86_fpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Cleanup variable shadowing
x86/fpu/xsave: Support XSAVEC in the kernel
needed anymore
- Other misc improvements
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Merge tag 'x86_core_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core x86 updates from Borislav Petkov:
- Remove all the code around GS switching on 32-bit now that it is not
needed anymore
- Other misc improvements
* tag 'x86_core_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bug: Use normal relative pointers in 'struct bug_entry'
x86/nmi: Make register_nmi_handler() more robust
x86/asm: Merge load_gs_index()
x86/32: Remove lazy GS macros
ELF: Remove elf_core_copy_kernel_regs()
x86/32: Simplify ELF_CORE_COPY_REGS
frequency invariance code along with removing the need for unnecessary IPIs
- Finally remove a.out support
- The usual trivial cleanups and fixes all over x86
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Merge tag 'x86_cleanups_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- Serious sanitization and cleanup of the whole APERF/MPERF and
frequency invariance code along with removing the need for
unnecessary IPIs
- Finally remove a.out support
- The usual trivial cleanups and fixes all over x86
* tag 'x86_cleanups_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86: Remove empty files
x86/speculation: Add missing srbds=off to the mitigations= help text
x86/prctl: Remove pointless task argument
x86/aperfperf: Make it correct on 32bit and UP kernels
x86/aperfmperf: Integrate the fallback code from show_cpuinfo()
x86/aperfmperf: Replace arch_freq_get_on_cpu()
x86/aperfmperf: Replace aperfmperf_get_khz()
x86/aperfmperf: Store aperf/mperf data for cpu frequency reads
x86/aperfmperf: Make parts of the frequency invariance code unconditional
x86/aperfmperf: Restructure arch_scale_freq_tick()
x86/aperfmperf: Put frequency invariance aperf/mperf data into a struct
x86/aperfmperf: Untangle Intel and AMD frequency invariance init
x86/aperfmperf: Separate AP/BP frequency invariance init
x86/smp: Move APERF/MPERF code where it belongs
x86/aperfmperf: Dont wake idle CPUs in arch_freq_get_on_cpu()
x86/process: Fix kernel-doc warning due to a changed function name
x86: Remove a.out support
x86/mm: Replace nodes_weight() with nodes_empty() where appropriate
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
x86/pkeys: Remove __arch_set_user_pkey_access() declaration
...
config debug options when trying to debug an issue
- A gcc12 build warnings fix
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Merge tag 'x86_build_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Borislav Petkov:
- Add a "make x86_debug.config" target which enables a bunch of useful
config debug options when trying to debug an issue
- A gcc-12 build warnings fix
* tag 'x86_build_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Wrap literal addresses in absolute_pointer()
x86/configs: Add x86 debugging Kconfig fragment plus docs
conventions so that former can be converted to C eventually
- Simplify PUSH_AND_CLEAR_REGS so that it can be used at the system call
entry paths instead of having opencoded, slightly different variants of it
everywhere
- Misc other fixes
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Merge tag 'x86_asm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Borislav Petkov:
- A bunch of changes towards streamlining low level asm helpers'
calling conventions so that former can be converted to C eventually
- Simplify PUSH_AND_CLEAR_REGS so that it can be used at the system
call entry paths instead of having opencoded, slightly different
variants of it everywhere
- Misc other fixes
* tag 'x86_asm_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry: Fix register corruption in compat syscall
objtool: Fix STACK_FRAME_NON_STANDARD reloc type
linkage: Fix issue with missing symbol size
x86/entry: Remove skip_r11rcx
x86/entry: Use PUSH_AND_CLEAR_REGS for compat
x86/entry: Simplify entry_INT80_compat()
x86/mm: Simplify RESERVE_BRK()
x86/entry: Convert SWAPGS to swapgs and remove the definition of SWAPGS
x86/entry: Don't call error_entry() for XENPV
x86/entry: Move CLD to the start of the idtentry macro
x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
x86/entry: Switch the stack after error_entry() returns
x86/traps: Use pt_regs directly in fixup_bad_iret()
are not really needed anymore
- Misc fixes and cleanups
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Merge tag 'x86_cpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 CPU feature updates from Borislav Petkov:
- Remove a bunch of chicken bit options to turn off CPU features which
are not really needed anymore
- Misc fixes and cleanups
* tag 'x86_cpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Add missing prototype for unpriv_ebpf_notify()
x86/pm: Fix false positive kmemleak report in msr_build_context()
x86/speculation/srbds: Do not try to turn mitigation off when not supported
x86/cpu: Remove "noclflush"
x86/cpu: Remove "noexec"
x86/cpu: Remove "nosmep"
x86/cpu: Remove CONFIG_X86_SMAP and "nosmap"
x86/cpu: Remove "nosep"
x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid=
This is the Intel version of a confidential computing solution called
Trust Domain Extensions (TDX). This series adds support to run the
kernel as part of a TDX guest. It provides similar guest protections to
AMD's SEV-SNP like guest memory and register state encryption, memory
integrity protection and a lot more.
Design-wise, it differs from AMD's solution considerably: it uses
a software module which runs in a special CPU mode called (Secure
Arbitration Mode) SEAM. As the name suggests, this module serves as sort
of an arbiter which the confidential guest calls for services it needs
during its lifetime.
Just like AMD's SNP set, this series reworks and streamlines certain
parts of x86 arch code so that this feature can be properly accomodated.
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Merge tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel TDX support from Borislav Petkov:
"Intel Trust Domain Extensions (TDX) support.
This is the Intel version of a confidential computing solution called
Trust Domain Extensions (TDX). This series adds support to run the
kernel as part of a TDX guest. It provides similar guest protections
to AMD's SEV-SNP like guest memory and register state encryption,
memory integrity protection and a lot more.
Design-wise, it differs from AMD's solution considerably: it uses a
software module which runs in a special CPU mode called (Secure
Arbitration Mode) SEAM. As the name suggests, this module serves as
sort of an arbiter which the confidential guest calls for services it
needs during its lifetime.
Just like AMD's SNP set, this series reworks and streamlines certain
parts of x86 arch code so that this feature can be properly
accomodated"
* tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
x86/tdx: Fix RETs in TDX asm
x86/tdx: Annotate a noreturn function
x86/mm: Fix spacing within memory encryption features message
x86/kaslr: Fix build warning in KASLR code in boot stub
Documentation/x86: Document TDX kernel architecture
ACPICA: Avoid cache flush inside virtual machines
x86/tdx/ioapic: Add shared bit for IOAPIC base address
x86/mm: Make DMA memory shared for TD guest
x86/mm/cpa: Add support for TDX shared memory
x86/tdx: Make pages shared in ioremap()
x86/topology: Disable CPU online/offline control for TDX guests
x86/boot: Avoid #VE during boot for TDX platforms
x86/boot: Set CR0.NE early and keep it set during the boot
x86/acpi/x86/boot: Add multiprocessor wake-up support
x86/boot: Add a trampoline for booting APs via firmware handoff
x86/tdx: Wire up KVM hypercalls
x86/tdx: Port I/O: Add early boot support
x86/tdx: Port I/O: Add runtime hypercalls
x86/boot: Port I/O: Add decompression-time support for TDX
x86/boot: Port I/O: Allow to hook up alternative helpers
...
Add to confidential guests the necessary memory integrity protection
against malicious hypervisor-based attacks like data replay, memory
remapping and others, thus achieving a stronger isolation from the
hypervisor.
At the core of the functionality is a new structure called a reverse
map table (RMP) with which the guest has a say in which pages get
assigned to it and gets notified when a page which it owns, gets
accessed/modified under the covers so that the guest can take an
appropriate action.
In addition, add support for the whole machinery needed to launch a SNP
guest, details of which is properly explained in each patch.
And last but not least, the series refactors and improves parts of the
previous SEV support so that the new code is accomodated properly and
not just bolted on.
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Merge tag 'x86_sev_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull AMD SEV-SNP support from Borislav Petkov:
"The third AMD confidential computing feature called Secure Nested
Paging.
Add to confidential guests the necessary memory integrity protection
against malicious hypervisor-based attacks like data replay, memory
remapping and others, thus achieving a stronger isolation from the
hypervisor.
At the core of the functionality is a new structure called a reverse
map table (RMP) with which the guest has a say in which pages get
assigned to it and gets notified when a page which it owns, gets
accessed/modified under the covers so that the guest can take an
appropriate action.
In addition, add support for the whole machinery needed to launch a
SNP guest, details of which is properly explained in each patch.
And last but not least, the series refactors and improves parts of the
previous SEV support so that the new code is accomodated properly and
not just bolted on"
* tag 'x86_sev_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
x86/entry: Fixup objtool/ibt validation
x86/sev: Mark the code returning to user space as syscall gap
x86/sev: Annotate stack change in the #VC handler
x86/sev: Remove duplicated assignment to variable info
x86/sev: Fix address space sparse warning
x86/sev: Get the AP jump table address from secrets page
x86/sev: Add missing __init annotations to SEV init routines
virt: sevguest: Rename the sevguest dir and files to sev-guest
virt: sevguest: Change driver name to reflect generic SEV support
x86/boot: Put globals that are accessed early into the .data section
x86/boot: Add an efi.h header for the decompressor
virt: sevguest: Fix bool function returning negative value
virt: sevguest: Fix return value check in alloc_shared_pages()
x86/sev-es: Replace open-coded hlt-loop with sev_es_terminate()
virt: sevguest: Add documentation for SEV-SNP CPUID Enforcement
virt: sevguest: Add support to get extended report
virt: sevguest: Add support to derive key
virt: Add SEV-SNP guest driver
x86/sev: Register SEV-SNP guest request platform device
x86/sev: Provide support for SNP guest request NAEs
...
the code considerably this way
- Rip out the silly edac_align_ptr() contraption which was computing the
size of the private structures of each driver and thus allowing for a
one-shot memory allocation. This was clearly unnecessary and confusing
so switch to simple and boring kmalloc* calls.
- Last but not least, the usual garden variety of fixes, cleanups and
improvements all over EDAC land
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Merge tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Switch ghes_edac to use the CPER error reporting routines and
simplify the code considerably this way
- Rip out the silly edac_align_ptr() contraption which was computing
the size of the private structures of each driver and thus allowing
for a one-shot memory allocation. This was clearly unnecessary and
confusing so switch to simple and boring kmalloc* calls.
- Last but not least, the usual garden variety of fixes, cleanups and
improvements all over EDAC land
* tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC: Use kcalloc()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
- Cleanup and robustify the PCI interrupt routing table handling
including proper range checks
- Add support for Intel 82378ZB/82379AB, SiS85C497 PIRQ routers
- Fix the ALi M1487 router handling
- Handle the IRT routing table format in AMI BIOSes correctly
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Merge tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PCI irq routing updates from Thomas Gleixner:
- Cleanup and robustify the PCI interrupt routing table handling
including proper range checks
- Add support for Intel 82378ZB/82379AB, SiS85C497 PIRQ routers
- Fix the ALi M1487 router handling
- Handle the IRT routing table format in AMI BIOSes correctly
* tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/PCI: Fix coding style in PIRQ table verification
x86/PCI: Fix ALi M1487 (IBC) PIRQ router link value interpretation
x86/PCI: Add $IRT PIRQ routing table support
x86/PCI: Handle PIRQ routing tables with no router device given
x86/PCI: Add PIRQ routing table range checks
x86/PCI: Add support for the SiS85C497 PIRQ router
x86/PCI: Disambiguate SiS85C503 PIRQ router code entities
x86/PCI: Handle IRQ swizzling with PIRQ routers
x86/PCI: Also match function number in $PIR table
x86/PCI: Include function number in $PIR table dump
x86/PCI: Show the physical address of the $PIR table
- Expose CLOCK_TAI to instrumentation to aid with TSN debugging.
- Ensure that the clockevent is stopped when there is no timer armed to
avoid pointless wakeups.
- Make the sched clock frequency handling and rounding consistent.
- Provide a better debugobject hint for delayed works. The timer callback
is always the same, which makes it difficult to identify the underlying
work. Use the work function as a hint instead.
- Move the timer specific sysctl code into the timer subsystem.
- The usual set of improvements and cleanups
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Merge tag 'timers-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and timekeeping updates from Thomas Gleixner:
- Expose CLOCK_TAI to instrumentation to aid with TSN debugging.
- Ensure that the clockevent is stopped when there is no timer armed to
avoid pointless wakeups.
- Make the sched clock frequency handling and rounding consistent.
- Provide a better debugobject hint for delayed works. The timer
callback is always the same, which makes it difficult to identify the
underlying work. Use the work function as a hint instead.
- Move the timer specific sysctl code into the timer subsystem.
- The usual set of improvements and cleanups
* tag 'timers-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Provide a better debugobjects hint for delayed works
time/sched_clock: Fix formatting of frequency reporting code
time/sched_clock: Use Hz as the unit for clock rate reporting below 4kHz
time/sched_clock: Round the frequency reported to nearest rather than down
timekeeping: Consolidate fast timekeeper
timekeeping: Annotate ktime_get_boot_fast_ns() with data_race()
timers/nohz: Switch to ONESHOT_STOPPED in the low-res handler when the tick is stopped
timekeeping: Introduce fast accessor to clock tai
tracing/timer: Add missing argument documentation of trace points
clocksource: Replace cpumask_weight() with cpumask_empty()
timers: Move timer sysctl into the timer code
clockevents: Use dedicated list iterator variable
timers: Simplify calc_index()
timers: Initialize base::next_expiry_recalc in timers_prepare_cpu()
Core code:
- Make the managed interrupts more robust by shutting them down in the
core code when the assigned affinity mask does not contain online
CPUs.
- Make the irq simulator chip work on RT
- A small set of cpumask and power manageent cleanups
Drivers:
- A set of changes which mark GPIO interrupt chips immutable to prevent
the GPIO subsystem from modifying it under the hood. This provides
the necessary infrastructure and converts a set of GPIO and pinctrl
drivers over.
- A set of changes to make the pseudo-NMI handling for GICv3 more
robust: a missing barrier and consistent handling of the priority
mask.
- Another set of GICv3 improvements and fixes, but nothing outstanding
- The usual set of improvements and cleanups all over the place
- No new irqchip drivers and not even a new device tree binding!
100+ interrupt chips are truly enough.
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Merge tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt handling updates from Thomas Gleixner:
"Core code:
- Make the managed interrupts more robust by shutting them down in
the core code when the assigned affinity mask does not contain
online CPUs.
- Make the irq simulator chip work on RT
- A small set of cpumask and power manageent cleanups
Drivers:
- A set of changes which mark GPIO interrupt chips immutable to
prevent the GPIO subsystem from modifying it under the hood. This
provides the necessary infrastructure and converts a set of GPIO
and pinctrl drivers over.
- A set of changes to make the pseudo-NMI handling for GICv3 more
robust: a missing barrier and consistent handling of the priority
mask.
- Another set of GICv3 improvements and fixes, but nothing
outstanding
- The usual set of improvements and cleanups all over the place
- No new irqchip drivers and not even a new device tree binding!
100+ interrupt chips are truly enough"
* tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
irqchip: Add Kconfig symbols for sunxi drivers
irqchip/gic-v3: Fix priority mask handling
irqchip/gic-v3: Refactor ISB + EOIR at ack time
irqchip/gic-v3: Ensure pseudo-NMIs have an ISB between ack and handling
genirq/irq_sim: Make the irq_work always run in hard irq context
irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
irqchip/gic: Improved warning about incorrect type
irqchip/csky: Return true/false (not 1/0) from bool functions
irqchip/imx-irqsteer: Add runtime PM support
irqchip/imx-irqsteer: Constify irq_chip struct
irqchip/armada-370-xp: Enable MSI affinity configuration
irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value
irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value
irqchip/sun6i-r: Use NULL for chip_data
irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup
irqchip/exiu: Fix acknowledgment of edge triggered interrupts
irqchip/gic-v3: Claim iomem resources
dt-bindings: interrupt-controller: arm,gic-v3: Make the v2 compat requirements explicit
irqchip/gic-v3: Relax polling of GIC{R,D}_CTLR.RWP
irqchip/gic-v3: Detect LPI invalidation MMIO registers
...
- Initialize the per CPU structures during early boot so that the state
is consistent from the very beginning.
- Make the virtualization hotplug state handling more robust and let the
core bringup CPUs which timed out in an earlier attempt again.
- Make the x86/XEN CPU state tracking consistent on a failed online
attempt, so a consecutive bringup does not fall over the inconsistent
state.
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Merge tag 'smp-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
- Initialize the per-CPU structures during early boot so that the state
is consistent from the very beginning.
- Make the virtualization hotplug state handling more robust and let
the core bringup CPUs which timed out in an earlier attempt again.
- Make the x86/xen CPU state tracking consistent on a failed online
attempt, so a consecutive bringup does not fall over the inconsistent
state.
* tag 'smp-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Initialise all cpuhp_cpu_state structs earlier
cpu/hotplug: Allow the CPU in CPU_UP_PREPARE state to be brought up again.
x86/xen: Allow to retry if cpu_initialize_context() failed.
- Ensure that a raised soft interrupt is handled after pulling the
blk_cpu_iopoll backlog from a unplugged CPU. This prevents that the CPU
which runs that code reaches idle with soft interrupts pending.
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Merge tag 'core-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqpoll update from Thomas Gleixner:
"A single update for irqpoll:
Ensure that a raised soft interrupt is handled after pulling the
blk_cpu_iopoll backlog from a unplugged CPU. This prevents that the
CPU which runs that code reaches idle with soft interrupts pending"
* tag 'core-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead()
This set of patches improve zonefs open sequential file accounting and
adds accounting for active sequential files to allow the user to handle
the maximum number of active zones of an NVMe ZNS drive. sysfs
attributes for both open and active sequential files are also added to
facilitate access to this information from applications without
resorting to inspecting the block device limits.
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Merge tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs updates from Damien Le Moal:
"This improves zonefs open sequential file accounting and adds
accounting for active sequential files to allow the user to handle the
maximum number of active zones of an NVMe ZNS drive.
sysfs attributes for both open and active sequential files are also
added to facilitate access to this information from applications
without resorting to inspecting the block device limits"
* tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
documentation: zonefs: Document sysfs attributes
documentation: zonefs: Cleanup the mount options section
zonefs: Add active seq file accounting
zonefs: Export open zone resource information through sysfs
zonefs: Always do seq file write open accounting
zonefs: Rename super block information fields
zonefs: Fix management of open zones
zonefs: Clear inode information flags on inode creation
For this cycle, the libata.force kernel parameter changes stand out.
Beside that, some small cleanups in various drivers. In more details:
* Changes to the pata_mpc52xx driver in preparation for powerpc's
asm/prom.h cleanup, from Christophe.
* Improved ATA command allocation, from John.
* Various small cleanups to the pata_via, pata_sil680, pata_ftide010,
sata_gemini, ahci_brcm drivers and to libata-core, from Sergey, Diego,
Ruyi, Mighao and Jiabing.
* Add support for the RZ/G2H SoC to the rcar-sata driver, from Lad.
* AHCI RAID ID cleanup, from Dan.
* Improvement to the libata.force kernel parameter to allow most horkage
flags to be manually forced for debugging drive issues in the field
without needing recompiling a kernel, from me.
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Merge tag 'ata-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
"For this cycle, the libata.force kernel parameter changes stand out.
Beside that, some small cleanups in various drivers. In more detail:
- Changes to the pata_mpc52xx driver in preparation for powerpc's
asm/prom.h cleanup, from Christophe.
- Improved ATA command allocation, from John.
- Various small cleanups to the pata_via, pata_sil680, pata_ftide010,
sata_gemini, ahci_brcm drivers and to libata-core, from Sergey,
Diego, Ruyi, Mighao and Jiabing.
- Add support for the RZ/G2H SoC to the rcar-sata driver, from Lad.
- AHCI RAID ID cleanup, from Dan.
- Improvement to the libata.force kernel parameter to allow most
horkage flags to be manually forced for debugging drive issues in
the field without needing recompiling a kernel, from me"
* tag 'ata-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_ftide010: Remove unneeded ERROR check before clk_disable_unprepare
doc: admin-guide: Update libata kernel parameters
ata: libata-core: Allow forcing most horkage flags
ata: libata-core: Improve link flags forced settings
ata: libata-core: Refactor force_tbl definition
ata: libata-core: cleanup ata_device_blacklist
ata: simplify the return expression of brcm_ahci_remove
ata: Make use of the helper function devm_platform_ioremap_resource()
ata: libata-core: replace "its" with "it is"
ahci: Add a generic 'controller2' RAID id
dt-bindings: ata: renesas,rcar-sata: Add r8a774e1 support
ata: pata_via: fix sloppy typing in via_do_set_mode()
ata: pata_sil680: fix result type of sil680_sel{dev|reg}()
ata: libata-core: fix parameter type in ata_xfer_mode2shift()
libata: Improve ATA queued command allocation
ata: pata_mpc52xx: Prepare cleanup of powerpc's asm/prom.h
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Merge tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver updates queued up for 5.19. This contains:
- NVMe pull requests via Christoph:
- tighten the PCI presence check (Stefan Roese)
- fix a potential NULL pointer dereference in an error path (Kyle
Miller Smith)
- fix interpretation of the DMRSL field (Tom Yan)
- relax the data transfer alignment (Keith Busch)
- verbose error logging improvements (Max Gurtovoy, Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni, Christoph)
- set non-mdts limits in nvme_scan_work (Chaitanya Kulkarni)
- add support for TP4084 - Time-to-Ready Enhancements (Christoph)
- MD pull request via Song:
- Improve annotation in raid5 code, by Logan Gunthorpe
- Support MD_BROKEN flag in raid-1/5/10, by Mariusz Tkaczyk
- Other small fixes/cleanups
- null_blk series making the configfs side much saner (Damien)
- Various minor drbd cleanups and fixes (Haowen, Uladzislau, Jiapeng,
Arnd, Cai)
- Avoid using the system workqueue (and hence flushing it) in rnbd
(Jack)
- Avoid using the system workqueue (and hence flushing it) in aoe
(Tetsuo)
- Series fixing discard_alignment issues in drivers (Christoph)
- Small series fixing drivers poking at disk->part0 for openers
information (Christoph)
- Series fixing deadlocks in loop (Christoph, Tetsuo)
- Remove loop.h and add SPDX headers (Christoph)
- Various fixes and cleanups (Julia, Xie, Yu)"
* tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block: (72 commits)
mtip32xx: fix typo in comment
nvme: set non-mdts limits in nvme_scan_work
nvme: add support for TP4084 - Time-to-Ready Enhancements
nvme: split the enum used for various register constants
nbd: Fix hung on disconnect request if socket is closed before
nvme-fabrics: add a request timeout helper
nvme-pci: harden drive presence detect in nvme_dev_disable()
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
nvme: mark internal passthru request RQF_QUIET
nvme: remove unneeded include from constants file
nvme: add missing status values to verbose logging
nvme: set dma alignment to dword
nvme: fix interpretation of DMRSL
loop: remove most the top-of-file boilerplate comment from the UAPI header
loop: remove most the top-of-file boilerplate comment
loop: add a SPDX header
loop: remove loop.h
block: null_blk: Improve device creation with configfs
block: null_blk: Cleanup messages
block: null_blk: Cleanup device creation and deletion
...
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Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
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Merge tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block
Pull cdrom updates from Jens Axboe:
"Removal of unused code and documentation updates"
* tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block:
cdrom: remove obsolete TODO list
block: remove last remaining traces of IDE documentation
cdrom: mark CDROMGETSPINDOWN/CDROMSETSPINDOWN obsolete
cdrom: remove the unused driver specific disc change ioctl
cdrom: make EXPORT_SYMBOL follow exported function
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Merge tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block
Pull writeback fix from Jens Axboe:
"A single writeback fix that didn't belong in any other branch,
correcting the number of skipped pages"
* tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block:
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
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Merge tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring NVMe command passthrough from Jens Axboe:
"On top of everything else, this adds support for passthrough for
io_uring.
The initial feature for this is NVMe passthrough support, which allows
non-filesystem based IO commands and admin commands.
To support this, io_uring grows support for SQE and CQE members that
are twice as big, allowing to pass in a full NVMe command without
having to copy data around. And to complete with more than just a
single 32-bit value as the output"
* tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block: (22 commits)
io_uring: cleanup handling of the two task_work lists
nvme: enable uring-passthrough for admin commands
nvme: helper for uring-passthrough checks
blk-mq: fix passthrough plugging
nvme: add vectored-io support for uring-cmd
nvme: wire-up uring-cmd support for io-passthru on char-device.
nvme: refactor nvme_submit_user_cmd()
block: wire-up support for passthrough plugging
fs,io_uring: add infrastructure for uring-cmd
io_uring: support CQE32 for nop operation
io_uring: enable CQE32
io_uring: support CQE32 in /proc info
io_uring: add tracing for additional CQE32 fields
io_uring: overflow processing for CQE32
io_uring: flush completions for CQE32
io_uring: modify io_get_cqe for CQE32
io_uring: add CQE32 completion processing
io_uring: add CQE32 setup processing
io_uring: change ring size calculation for CQE32
io_uring: store add. return values for CQE32
...
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Merge tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring 'more data in socket' support from Jens Axboe:
"To be able to fully utilize the 'poll first' support in the core
io_uring branch, it's advantageous knowing if the socket was empty
after a receive. This adds support for that"
* tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: return hint on whether more data is available after receive
tcp: pass back data left in socket after receive
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Merge tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring socket() support from Jens Axboe:
"This adds support for socket(2) for io_uring. This is handy when using
direct / registered file descriptors with io_uring.
Outside of those two patches, a small series from Dylan on top that
improves the tracing by providing a text representation of the opcode
rather than needing to decode this by reading the header file every
time.
That sits in this branch as it was the last opcode added (until it
wasn't...)"
* tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: use the text representation of ops in trace
io_uring: rename op -> opcode
io_uring: add io_uring_get_opcode
io_uring: add type to op enum
io_uring: add socket(2) support
net: add __sys_socket_file()
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Merge tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring xattr support from Jens Axboe:
"Support for the xattr variants"
* tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: cleanup error-handling around io_req_complete
io_uring: fix trace for reduced sqe padding
io_uring: add fgetxattr and getxattr support
io_uring: add fsetxattr and setxattr support
fs: split off do_getxattr from getxattr
fs: split off setxattr_copy and do_setxattr function from setxattr
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Merge tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Here are the main io_uring changes for 5.19. This contains:
- Fixes for sparse type warnings (Christoph, Vasily)
- Support for multi-shot accept (Hao)
- Support for io_uring managed fixed files, rather than always
needing the applicationt o manage the indices (me)
- Fix for a spurious poll wakeup (Dylan)
- CQE overflow fixes (Dylan)
- Support more types of cancelations (me)
- Support for co-operative task_work signaling, rather than always
forcing an IPI (me)
- Support for doing poll first when appropriate, rather than always
attempting a transfer first (me)
- Provided buffer cleanups and support for mapped buffers (me)
- Improve how io_uring handles inflight SCM files (Pavel)
- Speedups for registered files (Pavel, me)
- Organize the completion data in a struct in io_kiocb rather than
keep it in separate spots (Pavel)
- task_work improvements (Pavel)
- Cleanup and optimize the submission path, in general and for
handling links (Pavel)
- Speedups for registered resource handling (Pavel)
- Support sparse buffers and file maps (Pavel, me)
- Various fixes and cleanups (Almog, Pavel, me)"
* tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block: (111 commits)
io_uring: fix incorrect __kernel_rwf_t cast
io_uring: disallow mixed provided buffer group registrations
io_uring: initialize io_buffer_list head when shared ring is unregistered
io_uring: add fully sparse buffer registration
io_uring: use rcu_dereference in io_close
io_uring: consistently use the EPOLL* defines
io_uring: make apoll_events a __poll_t
io_uring: drop a spurious inline on a forward declaration
io_uring: don't use ERR_PTR for user pointers
io_uring: use a rwf_t for io_rw.flags
io_uring: add support for ring mapped supplied buffers
io_uring: add io_pin_pages() helper
io_uring: add buffer selection support to IORING_OP_NOP
io_uring: fix locking state for empty buffer group
io_uring: implement multishot mode for accept
io_uring: let fast poll support multishot
io_uring: add REQ_F_APOLL_MULTISHOT for requests
io_uring: add IORING_ACCEPT_MULTISHOT for accept
io_uring: only wake when the correct events are set
io_uring: avoid io-wq -EAGAIN looping for !IOPOLL
...
This pull request contains the following branches:
docs.2022.04.20a: Documentation updates.
fixes.2022.04.20a: Miscellaneous fixes.
nocb.2022.04.11b: Callback-offloading updates, mainly simplifications.
rcu-tasks.2022.04.11b: RCU-tasks updates, including some -rt fixups,
handling of systems with sparse CPU numbering, and a fix for a
boot-time race-condition failure.
srcu.2022.05.03a: Put SRCU on a memory diet in order to reduce the size
of the srcu_struct structure.
torture.2022.04.11b: Torture-test updates fixing some bugs in tests and
closing some testing holes.
torture-tasks.2022.04.20a: Torture-test updates for the RCU tasks flavors,
most notably ensuring that building rcutorture and friends does
not change the RCU-tasks-related Kconfig options.
torturescript.2022.04.20a: Torture-test scripting updates.
exp.2022.05.11a: Expedited grace-period updates, most notably providing
milliseconds-scale (not all that) soft real-time response from
synchronize_rcu_expedited(). This is also the first time in
almost 30 years of RCU that someone other than me has pushed
for a reduction in the RCU CPU stall-warning timeout, in this
case by more than three orders of magnitude from 21 seconds to
20 milliseconds. This tighter timeout applies only to expedited
grace periods.
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Merge tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU update from Paul McKenney:
- Documentation updates
- Miscellaneous fixes
- Callback-offloading updates, mainly simplifications
- RCU-tasks updates, including some -rt fixups, handling of systems
with sparse CPU numbering, and a fix for a boot-time race-condition
failure
- Put SRCU on a memory diet in order to reduce the size of the
srcu_struct structure
- Torture-test updates fixing some bugs in tests and closing some
testing holes
- Torture-test updates for the RCU tasks flavors, most notably ensuring
that building rcutorture and friends does not change the
RCU-tasks-related Kconfig options
- Torture-test scripting updates
- Expedited grace-period updates, most notably providing
milliseconds-scale (not all that) soft real-time response from
synchronize_rcu_expedited().
This is also the first time in almost 30 years of RCU that someone
other than me has pushed for a reduction in the RCU CPU stall-warning
timeout, in this case by more than three orders of magnitude from 21
seconds to 20 milliseconds. This tighter timeout applies only to
expedited grace periods
* tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
rcu: Move expedited grace period (GP) work to RT kthread_worker
rcu: Introduce CONFIG_RCU_EXP_CPU_STALL_TIMEOUT
srcu: Drop needless initialization of sdp in srcu_gp_start()
srcu: Prevent expedited GPs and blocking readers from consuming CPU
srcu: Add contention check to call_srcu() srcu_data ->lock acquisition
srcu: Automatically determine size-transition strategy at boot
rcutorture: Make torture.sh allow for --kasan
rcutorture: Make torture.sh refscale and rcuscale specify Tasks Trace RCU
rcutorture: Make kvm.sh allow more memory for --kasan runs
torture: Save "make allmodconfig" .config file
scftorture: Remove extraneous "scf" from per_version_boot_params
rcutorture: Adjust scenarios' Kconfig options for CONFIG_PREEMPT_DYNAMIC
torture: Enable CSD-lock stall reports for scftorture
torture: Skip vmlinux check for kvm-again.sh runs
scftorture: Adjust for TASKS_RCU Kconfig option being selected
rcuscale: Allow rcuscale without RCU Tasks Rude/Trace
rcuscale: Allow rcuscale without RCU Tasks
refscale: Allow refscale without RCU Tasks Rude/Trace
refscale: Allow refscale without RCU Tasks
rcutorture: Allow specifying per-scenario stat_interval
...
This pull request updates the klitmus7 compatibility table to indicate
that herdtools7 7.56.1 or better is required for Linux kernel v5.17
or later.
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Merge tag 'lkmm.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull LKMM update from Paul McKenney:
"This updates the klitmus7 compatibility table to indicate that
herdtools7 7.56.1 or better is required for Linux kernel v5.17 or
later"
* tag 'lkmm.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools/memory-model/README: Update klitmus7 compat table
This pull request adds a number of library functions and splits this
library into multiple files.
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Merge tag 'nolibc.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc library updates from Paul McKenney:
"This adds a number of library functions and splits this library into
multiple files"
* tag 'nolibc.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (61 commits)
tools/nolibc/string: Implement `strdup()` and `strndup()`
tools/nolibc/string: Implement `strnlen()`
tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`
tools/nolibc/types: Implement `offsetof()` and `container_of()` macro
tools/nolibc/sys: Implement `mmap()` and `munmap()`
tools/nolibc: i386: Implement syscall with 6 arguments
tools/nolibc: Remove .global _start from the entry point code
tools/nolibc: Replace `asm` with `__asm__`
tools/nolibc: x86-64: Update System V ABI document link
tools/nolibc/stdlib: only reference the external environ when inlined
tools/nolibc/string: do not use __builtin_strlen() at -O0
tools/nolibc: add the nolibc subdir to the common Makefile
tools/nolibc: add a makefile to install headers
tools/nolibc/types: add poll() and waitpid() flag definitions
tools/nolibc/sys: add syscall definition for getppid()
tools/nolibc/string: add strcmp() and strncmp()
tools/nolibc/stdio: add support for '%p' to vfprintf()
tools/nolibc/stdlib: add a simple getenv() implementation
tools/nolibc/stdio: make printf(%s) accept NULL
tools/nolibc/stdlib: implement abort()
...
- Allow runtime services to be re-enabled at boot on RT kernels.
- Provide access to secrets injected into the boot image by CoCo
hypervisors (COnfidential COmputing)
- Use DXE services on x86 to make the boot image executable after
relocation, if needed.
- Prefer mirrored memory for randomized allocations.
- Only randomize the placement of the kernel image on arm64 if the
loader has not already done so.
- Add support for obtaining the boot hartid from EFI on RISC-V.
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Merge tag 'efi-next-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Allow runtime services to be re-enabled at boot on RT kernels.
- Provide access to secrets injected into the boot image by CoCo
hypervisors (COnfidential COmputing)
- Use DXE services on x86 to make the boot image executable after
relocation, if needed.
- Prefer mirrored memory for randomized allocations.
- Only randomize the placement of the kernel image on arm64 if the
loader has not already done so.
- Add support for obtaining the boot hartid from EFI on RISC-V.
* tag 'efi-next-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
riscv/efi_stub: Add support for RISCV_EFI_BOOT_PROTOCOL
efi: stub: prefer mirrored memory for randomized allocations
efi/arm64: libstub: run image in place if randomized by the loader
efi: libstub: pass image handle to handle_kernel_image()
efi: x86: Set the NX-compatibility flag in the PE header
efi: libstub: ensure allocated memory to be executable
efi: libstub: declare DXE services table
efi: Add missing prototype for efi_capsule_setup_info
docs: security: Add secrets/coco documentation
efi: Register efi_secret platform device if EFI secret area is declared
virt: Add efi_secret module to expose confidential computing secrets
efi: Save location of EFI confidential computing area
efi: Allow to enable EFI runtime services by default on RT
Combine all collected EDAC changes for submission into v5.19:
* edac-misc:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
* edac-alloc-cleanup:
EDAC: Use kcalloc()
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
Signed-off-by: Borislav Petkov <bp@suse.de>
If a callback break occurs (change notification), afs_getattr() needs to
issue an FS.FetchStatus RPC operation to update the status of the file
being examined by the stat-family of system calls.
Fix afs_getattr() to do this if AFS_VNODE_CB_PROMISED has been cleared
on a vnode by a callback break. Skip this if AT_STATX_DONT_SYNC is set.
This can be tested by appending to a file on one AFS client and then
using "stat -L" to examine its length on a machine running kafs. This
can also be watched through tracing on the kafs machine. The callback
break is seen:
kworker/1:1-46 [001] ..... 978.910812: afs_cb_call: c=0000005f YFSCB.CallBack
kworker/1:1-46 [001] ...1. 978.910829: afs_cb_break: 100058:23b4c:242d2c2 b=2 s=1 break-cb
kworker/1:1-46 [001] ..... 978.911062: afs_call_done: c=0000005f ret=0 ab=0 [0000000082994ead]
And then the stat command generated no traffic if unpatched, but with
this change a call to fetch the status can be observed:
stat-4471 [000] ..... 986.744122: afs_make_fs_call: c=000000ab 100058:023b4c:242d2c2 YFS.FetchStatus
stat-4471 [000] ..... 986.745578: afs_call_done: c=000000ab ret=0 ab=0 [0000000087fc8c84]
Fixes: 08e0e7c82eea ("[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.")
Reported-by: Markus Suvanto <markus.suvanto@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
Tested-by: kafs-testing+fedora34_64checkkafs-build-496@auristor.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216010
Link: https://lore.kernel.org/r/165308359800.162686.14122417881564420962.stgit@warthog.procyon.org.uk/ # v1
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes for 5.18. Nothing spectacular but worth
fixing"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging
i2c: mt7621: fix missing clk_disable_unprepare() on error in mtk_i2c_probe()
- Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events in 'perf stat'.
- Fix x86's arch__intr_reg_mask() for the hybrid platform.
- Address 'perf bench numa' compiler error on s390.
- Fix check for btf__load_from_kernel_by_id() in libbpf.
- Fix "all PMU test" 'perf test' to skip hv_24x7/hv_gpci tests on powerpc.
- Fix session topology test to skip the test in guest environment.
- Skip BPF 'perf test' if clang is not present.
- Avoid shell test description infinite loop in 'perf test'.
- Fix Intel LBR callstack entries and nr print message.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
in 'perf stat'.
- Fix x86's arch__intr_reg_mask() for the hybrid platform.
- Address 'perf bench numa' compiler error on s390.
- Fix check for btf__load_from_kernel_by_id() in libbpf.
- Fix "all PMU test" 'perf test' to skip hv_24x7/hv_gpci tests on
powerpc.
- Fix session topology test to skip the test in guest environment.
- Skip BPF 'perf test' if clang is not present.
- Avoid shell test description infinite loop in 'perf test'.
- Fix Intel LBR callstack entries and nr print message.
* tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf session: Fix Intel LBR callstack entries and nr print message
perf test bpf: Skip test if clang is not present
perf test session topology: Fix test to skip the test in guest environment
perf bench numa: Address compiler error on s390
perf test: Avoid shell test description infinite loop
perf regs x86: Fix arch__intr_reg_mask() for the hybrid platform
perf test: Fix "all PMU test" to skip hv_24x7/hv_gpci tests on powerpc
perf stat: Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
perf build: Fix check for btf__load_from_kernel_by_id() in libbpf
- fix reset timing of Ilitek touchscreens
- update maintainer entry of DT binding of Mediatek 6779 keypad
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Merge tag 'input-for-v5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A small fixup to ili210x touchscreen driver, and updated maintainer
entry for the device tree binding of Mediatek 6779 keypad:
- fix reset timing of Ilitek touchscreens
- update maintainer entry of DT binding of Mediatek 6779 keypad"
* tag 'input-for-v5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ili210x - use one common reset implementation
Input: ili210x - fix reset timing
dt-bindings: input: mediatek,mt6779-keypad: update maintainer
Two patches both in drivers. The iscsi one is fixing the cpumask
issue you commented on and the ufs one is a late arriving fix for
conditions that can occur in Host Performance Booster reads.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two patches, both in drivers.
The iscsi one is fixing the cpumask issue you commented on and the ufs
one is a late arriving fix for conditions that can occur in Host
Performance Booster reads"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Fix referencing invalid rsp field
scsi: target: Fix incorrect use of cpumask_t
Perf BPF filter test fails in environment where "clang" is not
installed.
Test failure logs:
<<>>
42: BPF filter :
42.1: Basic BPF filtering : Skip
42.2: BPF pinning : FAILED!
42.3: BPF prologue generation : FAILED!
<<>>
Enabling verbose option provided debug logs which says clang/llvm needs
to be installed. Snippet of verbose logs:
<<>>
42.2: BPF pinning :
--- start ---
test child forked, pid 61423
ERROR: unable to find clang.
Hint: Try to install latest clang/llvm to support BPF.
Check your $PATH
<<logs_here>>
Failed to compile test case: 'Basic BPF llvm compile'
Unable to get BPF object, fix kbuild first
test child finished with -1
---- end ----
BPF filter subtest 2: FAILED!
<<>>
Here subtests, "BPF pinning" and "BPF prologue generation" failed and
logs shows clang/llvm is needed. After installing clang, testcase
passes.
Reason on why subtest failure happens though logs has proper debug
information:
Main function __test__bpf calls test_llvm__fetch_bpf_obj by
passing 4th argument as true ( 4th arguments maps to parameter
"force" in test_llvm__fetch_bpf_obj ). But this will cause
test_llvm__fetch_bpf_obj to skip the check for clang/llvm.
Snippet of code part which checks for clang based on
parameter "force" in test_llvm__fetch_bpf_obj:
<<>>
if (!force && (!llvm_param.user_set_param &&
<<>>
Since force is set to "false", test won't get skipped and fails to
compile test case. The BPF code compilation needs clang, So pass the
fourth argument as "false" and also skip the test if reason for return
is "TEST_SKIP"
After the patch:
<<>>
42: BPF filter :
42.1: Basic BPF filtering : Skip
42.2: BPF pinning : Skip
42.3: BPF prologue generation : Skip
<<>>
Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lore.kernel.org/r/20220511115438.84032-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The session topology test fails in powerpc pSeries platform.
Test logs:
<<>>
Session topology : FAILED!
<<>>
This testcases tests cpu topology by checking the core_id and socket_id
stored in perf_env from perf session. The data from perf session is
compared with the cpu topology information from
"/sys/devices/system/cpu/cpuX/topology" like core_id,
physical_package_id.
In case of virtual environment, detail like physical_package_id is
restricted to be exposed. Hence physical_package_id is set to -1. The
testcase fails on such platforms since socket_id can't be fetched from
topology info.
Skip the testcase in powerpc if physical_package_id returns -1.
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>---
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220511114959.84002-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linus Torvalds
Borislav Petkov
David Howells
Chengdong Li
Athira Rajeev