forked from Minki/linux
be78aa8a38
19436 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Paolo Bonzini
|
ece32a75f0 |
KVM/arm64 fixes for 5.17, take #4
- Correctly synchronise PMR and co on PSCI CPU_SUSPEND - Skip tests that depend on GICv3 when the HW isn't available -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmIY1HMPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpD4LEP/R2R5nvZwaiJIcVopzJd4ayN16bBL6qCxXWm XsuMqdE8g/Rju3sxR/qtomDgB3GJoYpCyY28rrmVli0WBZRt9icFE1cnqUMbv5g0 Iyd+RS79LcKU6OMakAyjYX0NNwhGHr1mdD+gP8NSMny+2XWQSVcUtTVZOjSprI9L zFNtJxPs1wfCp3WOWF668dgrBi8TsPHte2y0110+BcrY1rzJF0HXZm8YimlLakOG Pk98dbpGMV1aKog5p9YgE3tP0oMjUcf7h+EZxuQmKF7WeFCfVg1M1xlovxRq/oEg 6KDUwUnNcDOtjUQ0pmCIPwm+rHJjlkEd+1MjZPf9L6fU0lPXmFN/DEawTh3iAsB+ xAaijEb5ImtgQgyhnDYwr5g307iXmrgSwGZKue0WOA2CTtryIXqdE02TqwZZHprm MmAaUBUKbLGVMxd0sImsnrHUM1nNOHnD0IDEUwRLbAHOjm0u8rRK6ewV/A2O66Zz A+AVpBZ3wd4jKkrN509d4TqomegXZQDL7hDHSgWPJDWQvOe0dFdWPJtjtamOg9Bq +DVdXfwhQR7pHQIQbufIL+80Pgv7oBdEVSbtOJL+O+xkiSiDwHwkPdJwkB/01QMm /f6oytJ/Kkhs+G+W6rn/bo/W1thgCBSnXntUz4qs+Cfpl4QDOIFvqMmwDdOHOzcN 9WrR6DZg =Nyln -----END PGP SIGNATURE----- Merge tag 'kvmarm-fixes-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.17, take #4 - Correctly synchronise PMR and co on PSCI CPU_SUSPEND - Skip tests that depend on GICv3 when the HW isn't available |
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Oliver Upton
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a867e9d0cc |
KVM: arm64: Don't miss pending interrupts for suspended vCPU
In order to properly emulate the WFI instruction, KVM reads back
ICH_VMCR_EL2 and enables doorbells for GICv4. These preparations are
necessary in order to recognize pending interrupts in
kvm_arch_vcpu_runnable() and return to the guest. Until recently, this
work was done by kvm_arch_vcpu_{blocking,unblocking}(). Since commit
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Paolo Bonzini
|
ed343aa857 |
KVM/arm64 fixes for 5.17, take #3
- Fix pending state read of a HW interrupt -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmIGQwAPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDlWEQAKooUzCqqOOaqB/Ul4NAIco5AgqbApbH2fAy edPIkPAgiIjr52Ldmbga2LeDCRuWiEAGB/GSYemsewGMPmOiIEntggdDr7SraAyC 95fyz5Il4QTkEJGvuw20Fp1NPRKysWNijRg9A3exmVnba5qzDPgVVwxnW5Bn0/my xpOvtvt/XP5kggYPLT6Z6p+1IKooeAUWE6aSzS9WAl2H9F3L1NzsLWumhl0yhWa7 FS6BLN1nZ/Rk/2Eh6aSH2LtVzI/CO2MM7+rkJV5d8B6Zy/gEhakHi3x7qrL3Jr6k JqjHbi5IxHBIBJrlXUKE9K9M39PAF6Zk+P09wVb7EBknwziPCBaqzyzEn4Rx8Ryn GKZKqX8FTkztH7kjGXgc8g85JrDGZeQ7JvgAgiYM8ezyhd5L51pQPMogWCfaP6lt 9jLu+ojEp/8Pa74lKdjpnzAtTEbEzNbpjsNord4ttPBKuKHaWoeXhwFezNAAXQLC g+qJHrnoLuRChLlBaTbbfxQqLpfWXcMD19qUXA2fJyF7y4oX2zn7HbEGvHWLQ2Vc GFYssnnVfIPK1cRNYqqO9eBximiFmbztpm/86oRfPevitecUDzqpcO38T7WMvAVp sm3hYtGnUdUryMTNOuiN9+trJrX6WwtXiiMk9VFaoOWoBhVFlJTNstGeo+549V2O BCiovWQ9 =UV/Z -----END PGP SIGNATURE----- Merge tag 'kvmarm-fixes-5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.17, take #3 - Fix pending state read of a HW interrupt |
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Marc Zyngier
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5bfa685e62 |
KVM: arm64: vgic: Read HW interrupt pending state from the HW
It appears that a read access to GIC[DR]_I[CS]PENDRn doesn't always result in the pending interrupts being accurately reported if they are mapped to a HW interrupt. This is particularily visible when acking the timer interrupt and reading the GICR_ISPENDR1 register immediately after, for example (the interrupt appears as not-pending while it really is...). This is because a HW interrupt has its 'active and pending state' kept in the *physical* distributor, and not in the virtual one, as mandated by the spec (this is what allows the direct deactivation). The virtual distributor only caries the pending and active *states* (note the plural, as these are two independent and non-overlapping states). Fix it by reading the HW state back, either from the timer itself or from the distributor if necessary. Reported-by: Ricardo Koller <ricarkol@google.com> Tested-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220208123726.3604198-1-maz@kernel.org |
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Paolo Bonzini
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7e6a6b400d |
KVM/arm64 fixes for 5.17, take #2
- A couple of fixes when handling an exception while a SError has been delivered - Workaround for Cortex-A510's single-step[ erratum -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmH9LlcPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDLTcP/3Ry8CzvPubZquMyNdRUFvEg2EcfTa6vtIGW Fw7ap2hwPUaXUgJKDihMFIWj3Wf/wPmXw4t2Sr8R/yq8v9kWe+IG1isnT0yQhY3W kLXEqc8Mu4Rf8+jvlFHsp5mLENHIswpWAv/EY49ChgZkNmtkKpnPm1qnD89d8bNv tUwooDWidQ/7nXdM3z6zygSROJS24+OGTYTWzOQ1KgV3FGaXbqYiCleoPOpRR/Tc DQQWF/tVl8bZCqgkGKZCv3aXT0ZUPrQggARJGai78vP0l2sE/Kyaydgq5I7npZja 2L2U4kDNoPYIVa8A1jvV3Ef3AqNFs6B7+jXWfYIgAcXjCYzDK3cZcxavf/Inq9F1 3udVGJGSzH1KkGaihW3BVhsqGORRHKCdksJzWRgqf6vGyJhJw0u0D2u1rTWcT+jw Nm4KxShp0CX59HSLnVF5sR0Mct3jNNZ7UCCgH7q10wuBqYRfJT32hCo2ZrT7g9oD IQ+pa2dVYa3SaKZ4O6T/lSlbLOuuxtvmcEIfxYpPD6m10S5RrxOdsW3MCtiYM5HQ 24oo2mk6NIu/va0XxhcW+NBMcYtLQD9JUGbkUkpcRy2mgilTi9b4YPp+muYM7plQ /S1gj2kGY8vjMg0H+wysjMJyl2huEwSRsZ/UfxCAgW+MYhHLDxhxAnDWc8EcwGgE tUzomowB =Mbx/ -----END PGP SIGNATURE----- Merge tag 'kvmarm-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.17, take #2 - A couple of fixes when handling an exception while a SError has been delivered - Workaround for Cortex-A510's single-step[ erratum |
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James Morse
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1dd498e5e2 |
KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata
Cortex-A510's erratum #2077057 causes SPSR_EL2 to be corrupted when
single-stepping authenticated ERET instructions. A single step is
expected, but a pointer authentication trap is taken instead. The
erratum causes SPSR_EL1 to be copied to SPSR_EL2, which could allow
EL1 to cause a return to EL2 with a guest controlled ELR_EL2.
Because the conditions require an ERET into active-not-pending state,
this is only a problem for the EL2 when EL2 is stepping EL1. In this case
the previous SPSR_EL2 value is preserved in struct kvm_vcpu, and can be
restored.
Cc: stable@vger.kernel.org #
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James Morse
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1229630af8 |
KVM: arm64: Stop handle_exit() from handling HVC twice when an SError occurs
Prior to commit |
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James Morse
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1c71dbc8a1 |
KVM: arm64: Avoid consuming a stale esr value when SError occur
When any exception other than an IRQ occurs, the CPU updates the ESR_EL2
register with the exception syndrome. An SError may also become pending,
and will be synchronised by KVM. KVM notes the exception type, and whether
an SError was synchronised in exit_code.
When an exception other than an IRQ occurs, fixup_guest_exit() updates
vcpu->arch.fault.esr_el2 from the hardware register. When an SError was
synchronised, the vcpu esr value is used to determine if the exception
was due to an HVC. If so, ELR_EL2 is moved back one instruction. This
is so that KVM can process the SError first, and re-execute the HVC if
the guest survives the SError.
But if an IRQ synchronises an SError, the vcpu's esr value is stale.
If the previous non-IRQ exception was an HVC, KVM will corrupt ELR_EL2,
causing an unrelated guest instruction to be executed twice.
Check ARM_EXCEPTION_CODE() before messing with ELR_EL2, IRQs don't
update this register so don't need to check.
Fixes:
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Mark Rutland
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8cfe148a71 |
kvm/arm64: rework guest entry logic
In kvm_arch_vcpu_ioctl_run() we enter an RCU extended quiescent state
(EQS) by calling guest_enter_irqoff(), and unmasked IRQs prior to
exiting the EQS by calling guest_exit(). As the IRQ entry code will not
wake RCU in this case, we may run the core IRQ code and IRQ handler
without RCU watching, leading to various potential problems.
Additionally, we do not inform lockdep or tracing that interrupts will
be enabled during guest execution, which caan lead to misleading traces
and warnings that interrupts have been enabled for overly-long periods.
This patch fixes these issues by using the new timing and context
entry/exit helpers to ensure that interrupts are handled during guest
vtime but with RCU watching, with a sequence:
guest_timing_enter_irqoff();
guest_state_enter_irqoff();
< run the vcpu >
guest_state_exit_irqoff();
< take any pending IRQs >
guest_timing_exit_irqoff();
Since instrumentation may make use of RCU, we must also ensure that no
instrumented code is run during the EQS. I've split out the critical
section into a new kvm_arm_enter_exit_vcpu() helper which is marked
noinstr.
Fixes:
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Linus Torvalds
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216e2aede2 |
arm64 fixes:
- Errata workarounds for Cortex-A510: broken hardware dirty bit management, detection code for the TRBE (tracing) bugs with the actual fixes going in via the CoreSight tree. - Cortex-X2 errata handling for TRBE (inheriting the workarounds from Cortex-A710). - Fix ex_handler_load_unaligned_zeropad() to use the correct struct members. - A couple of kselftest fixes for FPSIMD. - Silence the vdso "no previous prototype" warning. - Mark start_backtrace() notrace and NOKPROBE_SYMBOL. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAmH0PzkACgkQa9axLQDI XvHzjg//SNFO0czvwEgV2vwazoCNoxMLQ/FnbjqhuSrGlbChXafaAxt0/FmHIUHn NYF576mpSyu5Rr+/WD2VnbMUrsWVO62B1iAJVOolZZW8FeT2l9rcObkxROzGFzyC WqBobdRii9vhMr6Z4rtgXqJYVIDh+SIXp6K+sgWYrfuph/y352F0/fs+kFea/ZjW OeDBI6EOEcZQFt0breZnNzQRt8wipJ++sB/DjwgCOylVRSAeU215Sc6Kr2Zj4ZuN EGE4AZQNe1/FIeSYKUSQh86Mo6grQSnDc65j8xPQmvWTxftyjiJNH2HflhXsRKMy XMWlDdNtSv3fl02CZyQcgWERRlO8MgK33YG6QLrTErAGXGEYWorSPtDsd5vdVbuK BCycx04wgrMKT02GL40XJOtBlWA5UjEJDciOMLKSTbMjXFT8wCOSr5MeuoD5dBg3 Ux3AIe/ZJBXaQmu86rBErrzQtdXs+h1ozk185GtVbaYdeDdH8wi8Ru+2OIHcly7O 3tmHWT7cqf6vP5PHUq2gTdXWam3wzhVO7kszgh50h/QyW89h3VFoeFdBktd4Fgk1 vKz1gzbGaZqaTWxBUJJEyKyhlnQvKPDMEdqMsOQXAWDthbfMFQHmaJjSJPb89vVF jS3hSHE8XB+l9HFrXDVARCbeOt2rK9oWQC1voUBZHl4JE3J9zhY= =D11O -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Errata workarounds for Cortex-A510: broken hardware dirty bit management, detection code for the TRBE (tracing) bugs with the actual fixes going in via the CoreSight tree. - Cortex-X2 errata handling for TRBE (inheriting the workarounds from Cortex-A710). - Fix ex_handler_load_unaligned_zeropad() to use the correct struct members. - A couple of kselftest fixes for FPSIMD. - Silence the vdso "no previous prototype" warning. - Mark start_backtrace() notrace and NOKPROBE_SYMBOL. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: cpufeature: List early Cortex-A510 parts as having broken dbm kselftest/arm64: Correct logging of FPSIMD register read via ptrace kselftest/arm64: Skip VL_INHERIT tests for unsupported vector types arm64: errata: Add detection for TRBE trace data corruption arm64: errata: Add detection for TRBE invalid prohibited states arm64: errata: Add detection for TRBE ignored system register writes arm64: Add Cortex-A510 CPU part definition arm64: extable: fix load_unaligned_zeropad() reg indices arm64: Mark start_backtrace() notrace and NOKPROBE_SYMBOL arm64: errata: Update ARM64_ERRATUM_[2119858|2224489] with Cortex-X2 ranges arm64: Add Cortex-X2 CPU part definition arm64: vdso: Fix "no previous prototype" warning |
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Linus Torvalds
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3cd7cd8a62 |
Two larger x86 series:
* Redo incorrect fix for SEV/SMAP erratum
* Windows 11 Hyper-V workaround
Other x86 changes:
* Various x86 cleanups
* Re-enable access_tracking_perf_test
* Fix for #GP handling on SVM
* Fix for CPUID leaf 0Dh in KVM_GET_SUPPORTED_CPUID
* Fix for ICEBP in interrupt shadow
* Avoid false-positive RCU splat
* Enable Enlightened MSR-Bitmap support for real
ARM:
* Correctly update the shadow register on exception injection when
running in nVHE mode
* Correctly use the mm_ops indirection when performing cache invalidation
from the page-table walker
* Restrict the vgic-v3 workaround for SEIS to the two known broken
implementations
Generic code changes:
* Dead code cleanup
There will be another pull request for ARM fixes next week, but
those patches need a bit more soak time.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Two larger x86 series:
- Redo incorrect fix for SEV/SMAP erratum
- Windows 11 Hyper-V workaround
Other x86 changes:
- Various x86 cleanups
- Re-enable access_tracking_perf_test
- Fix for #GP handling on SVM
- Fix for CPUID leaf 0Dh in KVM_GET_SUPPORTED_CPUID
- Fix for ICEBP in interrupt shadow
- Avoid false-positive RCU splat
- Enable Enlightened MSR-Bitmap support for real
ARM:
- Correctly update the shadow register on exception injection when
running in nVHE mode
- Correctly use the mm_ops indirection when performing cache
invalidation from the page-table walker
- Restrict the vgic-v3 workaround for SEIS to the two known broken
implementations
Generic code changes:
- Dead code cleanup"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (43 commits)
KVM: eventfd: Fix false positive RCU usage warning
KVM: nVMX: Allow VMREAD when Enlightened VMCS is in use
KVM: nVMX: Implement evmcs_field_offset() suitable for handle_vmread()
KVM: nVMX: Rename vmcs_to_field_offset{,_table}
KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER
KVM: nVMX: Also filter MSR_IA32_VMX_TRUE_PINBASED_CTLS when eVMCS
selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPP
KVM: x86: add system attribute to retrieve full set of supported xsave states
KVM: x86: Add a helper to retrieve userspace address from kvm_device_attr
selftests: kvm: move vm_xsave_req_perm call to amx_test
KVM: x86: Sync the states size with the XCR0/IA32_XSS at, any time
KVM: x86: Update vCPU's runtime CPUID on write to MSR_IA32_XSS
KVM: x86: Keep MSR_IA32_XSS unchanged for INIT
KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2}
KVM: nVMX: WARN on any attempt to allocate shadow VMCS for vmcs02
KVM: selftests: Don't skip L2's VMCALL in SMM test for SVM guest
KVM: x86: Check .flags in kvm_cpuid_check_equal() too
KVM: x86: Forcibly leave nested virt when SMM state is toggled
KVM: SVM: drop unnecessary code in svm_hv_vmcb_dirty_nested_enlightenments()
KVM: SVM: hyper-v: Enable Enlightened MSR-Bitmap support for real
...
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James Morse
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297ae1eb23 |
arm64: cpufeature: List early Cortex-A510 parts as having broken dbm
Versions of Cortex-A510 before r0p3 are affected by a hardware erratum where the hardware update of the dirty bit is not correctly ordered. Add these cpus to the cpu_has_broken_dbm list. Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20220125154040.549272-3-james.morse@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Catalin Marinas
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df20597044 |
coresight: trbe: Workaround Cortex-A510 erratas
This pull request is providing arm64 definitions to support TRBE Cortex-A510 erratas. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEeTrpXvBwUkra1RYWo5FxFnwrV6EFAmHy7RkbHG1hdGhpZXUu cG9pcmllckBsaW5hcm8ub3JnAAoJEKORcRZ8K1ehmvEH/2O01bctGwhEtg7wRxdu b/pksZSJZkrTq7cUU/xRUzGEj38owoYb/QFle1+e1qMW8Lt5nI11xLLCuBxTTZFT zazoYnHHciKK5kiQSCK1cN4hTjGfL0dn/cEUkwGMA9PX6B8jG+WvMEHYXZkebt5b BV88QUNB5+S5PPZzF+UczLVQoZ1UmlwkoVyTpRQN97qunqOZ6C1esDgOeghAXTg4 EKni3tl7IkkuDDsWvg4ez4hvnYbCbPaMaFqVI81n1NGHl2fhsKAa3GXKzj+wiG8H gQEXw0q8G8rxJ4Ik/K4/VApWGrqFFSCFCeho8GFqxputUkzGoCRZ1U6JPQIbFWrN lJM= =HLQt -----END PGP SIGNATURE----- Merge tag 'trbe-cortex-a510-errata' of gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux into for-next/fixes coresight: trbe: Workaround Cortex-A510 erratas This pull request is providing arm64 definitions to support TRBE Cortex-A510 erratas. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> * tag 'trbe-cortex-a510-errata' of gitolite.kernel.org:pub/scm/linux/kernel/git/coresight/linux: arm64: errata: Add detection for TRBE trace data corruption arm64: errata: Add detection for TRBE invalid prohibited states arm64: errata: Add detection for TRBE ignored system register writes arm64: Add Cortex-A510 CPU part definition |
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Paolo Bonzini
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17179d0068 |
KVM/arm64 fixes for 5.17, take #1
- Correctly update the shadow register on exception injection when running in nVHE mode - Correctly use the mm_ops indirection when performing cache invalidation from the page-table walker - Restrict the vgic-v3 workaround for SEIS to the two known broken implementations -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmHzv5EPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpD0DcQAMF0hcKYxwuXi+UwQ8u5SsrpQQZ1BWC6euvB FFQiUPANXq/u0xM2kV+5FhjEfHqqjnh7nYLVKpBcetcvGSfWUnZlVI4DKI+5pdte PTa/minS5sq9BDZ/clRnnomNw0UwtH2OLeolg7+UAqBMihicddVBBU6IqvY1Nx+z F2qovZa3Qqb1EB+9+hPS+qGcjlguaBOEzrJ9uIaw532G1JD1K9hhMlabdhJhiJA3 gWuUJO+cuYEdctli+OJb9g92zIDt0hVP+/1tndlbib5BUw6e2vkdyKF0+/7u77xr SDKNmUosvZt/fABZpv6ycgRszoKRjBCIC5takQCZI/l2QzZFbiP/414E8L0J/zLV PI8e1bs/H9pBF3c7WG+if/3jYs+D+/nYhkE+PeW3k5lxzsHo7XE5ei6mzoxzBusC l4c0QQ7lpwep4dOWm4oRxzE0/9IONgVKKlIKGBkpSbtznDkAToTWobAIFVeZj+nm BVxf+A6ddcnQSzXYa/FUsfV3ZEsJVPSs/DL6mBBJuG8lxNzZnabkt+ODfXuhyrXe 6kGkF9+4HE9XyItieZVDUgRcZ9x57c+3q7A9b7Kl+Ds1Z+hsu0tVqghf5YVQAj3a 4IkOBdPEtaGCSrJWxupX+oimCXqdNfbnOqf4VsO8l1O0O8WBRvYaqYL2RKR32kX2 n3nzO/vE =BKqv -----END PGP SIGNATURE----- Merge tag 'kvmarm-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.17, take #1 - Correctly update the shadow register on exception injection when running in nVHE mode - Correctly use the mm_ops indirection when performing cache invalidation from the page-table walker - Restrict the vgic-v3 workaround for SEIS to the two known broken implementations |
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Anshuman Khandual
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708e8af492 |
arm64: errata: Add detection for TRBE trace data corruption
TRBE implementations affected by Arm erratum #1902691 might corrupt trace data or deadlock, when it's being written into the memory. So effectively TRBE is broken and hence cannot be used to capture trace data. This adds a new errata ARM64_ERRATUM_1902691 in arm64 errata framework. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1643120437-14352-5-git-send-email-anshuman.khandual@arm.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> |
||
|
Anshuman Khandual
|
3bd94a8759 |
arm64: errata: Add detection for TRBE invalid prohibited states
TRBE implementations affected by Arm erratum #2038923 might get TRBE into an inconsistent view on whether trace is prohibited within the CPU. As a result, the trace buffer or trace buffer state might be corrupted. This happens after TRBE buffer has been enabled by setting TRBLIMITR_EL1.E, followed by just a single context synchronization event before execution changes from a context, in which trace is prohibited to one where it isn't, or vice versa. In these mentioned conditions, the view of whether trace is prohibited is inconsistent between parts of the CPU, and the trace buffer or the trace buffer state might be corrupted. This adds a new errata ARM64_ERRATUM_2038923 in arm64 errata framework. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1643120437-14352-4-git-send-email-anshuman.khandual@arm.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> |
||
|
Anshuman Khandual
|
607a9afaae |
arm64: errata: Add detection for TRBE ignored system register writes
TRBE implementations affected by Arm erratum #2064142 might fail to write into certain system registers after the TRBE has been disabled. Under some conditions after TRBE has been disabled, writes into certain TRBE registers TRBLIMITR_EL1, TRBPTR_EL1, TRBBASER_EL1, TRBSR_EL1 and TRBTRG_EL1 will be ignored and not be effected. This adds a new errata ARM64_ERRATUM_2064142 in arm64 errata framework. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1643120437-14352-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> |
||
|
Anshuman Khandual
|
53960faf2b |
arm64: Add Cortex-A510 CPU part definition
Add the CPU Partnumbers for the new Arm designs. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1643120437-14352-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> |
||
Evgenii Stepanov
|
3758a6c74e |
arm64: extable: fix load_unaligned_zeropad() reg indices
In ex_handler_load_unaligned_zeropad() we erroneously extract the data and
addr register indices from ex->type rather than ex->data. As ex->type will
contain EX_TYPE_LOAD_UNALIGNED_ZEROPAD (i.e. 4):
* We'll always treat X0 as the address register, since EX_DATA_REG_ADDR is
extracted from bits [9:5]. Thus, we may attempt to dereference an
arbitrary address as X0 may hold an arbitrary value.
* We'll always treat X4 as the data register, since EX_DATA_REG_DATA is
extracted from bits [4:0]. Thus we will corrupt X4 and cause arbitrary
behaviour within load_unaligned_zeropad() and its caller.
Fix this by extracting both values from ex->data as originally intended.
On an MTE-enabled QEMU image we are hitting the following crash:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Call trace:
fixup_exception+0xc4/0x108
__do_kernel_fault+0x3c/0x268
do_tag_check_fault+0x3c/0x104
do_mem_abort+0x44/0xf4
el1_abort+0x40/0x64
el1h_64_sync_handler+0x60/0xa0
el1h_64_sync+0x7c/0x80
link_path_walk+0x150/0x344
path_openat+0xa0/0x7dc
do_filp_open+0xb8/0x168
do_sys_openat2+0x88/0x17c
__arm64_sys_openat+0x74/0xa0
invoke_syscall+0x48/0x148
el0_svc_common+0xb8/0xf8
do_el0_svc+0x28/0x88
el0_svc+0x24/0x84
el0t_64_sync_handler+0x88/0xec
el0t_64_sync+0x1b4/0x1b8
Code: f8695a69 71007d1f 540000e0 927df12a (f940014a)
Fixes:
|
||
Masami Hiramatsu
|
1e0924bd09 |
arm64: Mark start_backtrace() notrace and NOKPROBE_SYMBOL
Mark the start_backtrace() as notrace and NOKPROBE_SYMBOL
because this function is called from ftrace and lockdep to
get the caller address via return_address(). The lockdep
is used in kprobes, it should also be NOKPROBE_SYMBOL.
Fixes:
|
||
|
Anshuman Khandual
|
eb30d838a4 |
arm64: errata: Update ARM64_ERRATUM_[2119858|2224489] with Cortex-X2 ranges
Errata ARM64_ERRATUM_[2119858|2224489] also affect some Cortex-X2 ranges as well. Lets update these errata definition and detection to accommodate all new Cortex-X2 based cpu MIDR ranges. Cc: Will Deacon <will@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/1642994138-25887-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
|
Anshuman Khandual
|
72bb9dcb6c |
arm64: Add Cortex-X2 CPU part definition
Add the CPU Partnumbers for the new Arm designs. Cc: Will Deacon <will@kernel.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/1642994138-25887-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
Vincenzo Frascino
|
58cd4a088e |
arm64: vdso: Fix "no previous prototype" warning
If compiling the arm64 kernel with W=1 the following warning is produced: | arch/arm64/kernel/vdso/vgettimeofday.c:9:5: error: no previous prototype for ‘__kernel_clock_gettime’ [-Werror=missing-prototypes] | 9 | int __kernel_clock_gettime(clockid_t clock, | | ^~~~~~~~~~~~~~~~~~~~~~ | arch/arm64/kernel/vdso/vgettimeofday.c:15:5: error: no previous prototype for ‘__kernel_gettimeofday’ [-Werror=missing-prototypes] | 15 | int __kernel_gettimeofday(struct __kernel_old_timeval *tv, | | ^~~~~~~~~~~~~~~~~~~~~ | arch/arm64/kernel/vdso/vgettimeofday.c:21:5: error: no previous prototype for ‘__kernel_clock_getres’ [-Werror=missing-prototypes] | 21 | int __kernel_clock_getres(clockid_t clock_id, | | ^~~~~~~~~~~~~~~~~~~~~ This patch removes "-Wmissing-prototypes" and "-Wmissing-declarations" compilers flags from the compilation of vgettimeofday.c to make possible to build the kernel with CONFIG_WERROR enabled. Cc: Will Deacon <will@kernel.org> Reported-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Tested-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/r/20220121121234.47273-1-vincenzo.frascino@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
|
Marc Zyngier
|
278583055a |
KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHE
Injecting an exception into a guest with non-VHE is risky business.
Instead of writing in the shadow register for the switch code to
restore it, we override the CPU register instead. Which gets
overriden a few instructions later by said restore code.
The result is that although the guest correctly gets the exception,
it will return to the original context in some random state,
depending on what was there the first place... Boo.
Fix the issue by writing to the shadow register. The original code
is absolutely fine on VHE, as the state is already loaded, and writing
to the shadow register in that case would actually be a bug.
Fixes:
|
||
|
Linus Torvalds
|
3689f9f8b0 |
bitmap patches for 5.17-rc1
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CAZAgVELp+0YQXdybrfzTQ8BT3TinjS/aZtCrYijRendI1GwUXcyl69vdOKqAHuk
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Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linux
Pull bitmap updates from Yury Norov:
- introduce for_each_set_bitrange()
- use find_first_*_bit() instead of find_next_*_bit() where possible
- unify for_each_bit() macros
* tag 'bitmap-5.17-rc1' of git://github.com/norov/linux:
vsprintf: rework bitmap_list_string
lib: bitmap: add performance test for bitmap_print_to_pagebuf
bitmap: unify find_bit operations
mm/percpu: micro-optimize pcpu_is_populated()
Replace for_each_*_bit_from() with for_each_*_bit() where appropriate
find: micro-optimize for_each_{set,clear}_bit()
include/linux: move for_each_bit() macros from bitops.h to find.h
cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
tools: sync tools/bitmap with mother linux
all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate
cpumask: use find_first_and_bit()
lib: add find_first_and_bit()
arch: remove GENERIC_FIND_FIRST_BIT entirely
include: move find.h from asm_generic to linux
bitops: move find_bit_*_le functions from le.h to find.h
bitops: protect find_first_{,zero}_bit properly
|
||
|
Marc Zyngier
|
d11a327ed9 |
KVM: arm64: vgic-v3: Restrict SEIS workaround to known broken systems
Contrary to what |
||
|
Linus Torvalds
|
b21bae9af1 |
arm64 fixes/cleanups:
- Add brackets to the io_stop_wc macro. - Avoid -Warray-bounds warning with the LSE atomics inline asm. - Apply __ro_after_init to memory_limit. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAmHq44IACgkQa9axLQDI XvFbHBAAqVG6jcW7LfNYbGED28iIj08c2o0Y4+p87caXR0xNDobrPYtUl3zy76l9 lJ+OTrUdBCBrd5exHghyJPvnC+dB1yjSu595DrsN4eSJ0/jfkfyv+vGHTASoyoeK HHL6L9rj3jBlpgDMuRiJFggdUddTSocWMpLDjUbZCNDpQOkf8TakFYrAOosooixS g0Psq5fJ6aP+yymQMQuIJyGiRzskSilTdjFSbMSqFvrCPfzQMZWLnMtF5OAs9Gbi Wcxb1AKAJLZFfy+XslgK709jIeTZ6CExTbWoY/yP9sxqgz+ALbj/dQBY4ryyUMVp C/Vu/bMLEnPW5jgppGXftsnsjivmVj1frb2/5+IY8SHI6Niq+8dna774jOLy6Mad PjYWSg5QxQSw4loZJpGzYduf6G3keKjSSkgeNns3n4f1ZqzAgHCuFF7TglIOeQvp /8AmR3u5fHjp0sMl6DE6zJ+cMTXwAxdXZYPHY9PWexLEsKiS1vkMbN2LYcb4tIjt xjymVGUUZ5/qKQSeZoKCyhjdgc06G6A5W+A/TmgVDGqkBa/U33/PvwoAxYwmaIf8 z02/MEjliP3IRvG0KzX+Cw7SHLtJ+nIgaZQgSK4QZBmKrJQs6CI1M5V1g4gVhpmM sqwtAiIHpUspmu+dP/fF4vcGzvgnZam2kQDv5mv1vFy3Dh1yn0k= =LonE -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes/cleanups from Catalin Marinas: "Some fixes that turned up during the merge window: - Add brackets to the io_stop_wc macro - Avoid -Warray-bounds warning with the LSE atomics inline asm - Apply __ro_after_init to memory_limit" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: apply __ro_after_init to memory_limit arm64: atomics: lse: Dereference matching size asm-generic: Add missing brackets for io_stop_wc macro |
||
Peng Fan
|
bb425a7598 |
arm64: mm: apply __ro_after_init to memory_limit
This variable is only set during initialization, so mark with __ro_after_init. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20211215064559.2843555-1-peng.fan@oss.nxp.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
Kees Cook
|
3364c6ce23 |
arm64: atomics: lse: Dereference matching size
When building with -Warray-bounds, the following warning is generated:
In file included from ./arch/arm64/include/asm/lse.h:16,
from ./arch/arm64/include/asm/cmpxchg.h:14,
from ./arch/arm64/include/asm/atomic.h:16,
from ./include/linux/atomic.h:7,
from ./include/asm-generic/bitops/atomic.h:5,
from ./arch/arm64/include/asm/bitops.h:25,
from ./include/linux/bitops.h:33,
from ./include/linux/kernel.h:22,
from kernel/printk/printk.c:22:
./arch/arm64/include/asm/atomic_lse.h:247:9: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'atomic_t[1]' [-Warray-bounds]
247 | asm volatile( \
| ^~~
./arch/arm64/include/asm/atomic_lse.h:266:1: note: in expansion of macro '__CMPXCHG_CASE'
266 | __CMPXCHG_CASE(w, , acq_, 32, a, "memory")
| ^~~~~~~~~~~~~~
kernel/printk/printk.c:3606:17: note: while referencing 'printk_cpulock_owner'
3606 | static atomic_t printk_cpulock_owner = ATOMIC_INIT(-1);
| ^~~~~~~~~~~~~~~~~~~~
This is due to the compiler seeing an unsigned long * cast against
something (atomic_t) that is int sized. Replace the cast with the
matching size cast. This results in no change in binary output.
Note that __ll_sc__cmpxchg_case_##name##sz already uses the same
constraint:
[v] "+Q" (*(u##sz *)ptr
Which is why only the LSE form needs updating and not the
LL/SC form, so this change is unlikely to be problematic.
Cc: Will Deacon <will@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220112202259.3950286-1-keescook@chromium.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
|
||
|
Linus Torvalds
|
f4484d138b |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "55 patches. Subsystems affected by this patch series: percpu, procfs, sysctl, misc, core-kernel, get_maintainer, lib, checkpatch, binfmt, nilfs2, hfs, fat, adfs, panic, delayacct, kconfig, kcov, and ubsan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (55 commits) lib: remove redundant assignment to variable ret ubsan: remove CONFIG_UBSAN_OBJECT_SIZE kcov: fix generic Kconfig dependencies if ARCH_WANTS_NO_INSTR lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB btrfs: use generic Kconfig option for 256kB page size limit arch/Kconfig: split PAGE_SIZE_LESS_THAN_256KB from PAGE_SIZE_LESS_THAN_64KB configs: introduce debug.config for CI-like setup delayacct: track delays from memory compact Documentation/accounting/delay-accounting.rst: add thrashing page cache and direct compact delayacct: cleanup flags in struct task_delay_info and functions use it delayacct: fix incomplete disable operation when switch enable to disable delayacct: support swapin delay accounting for swapping without blkio panic: remove oops_id panic: use error_report_end tracepoint on warnings fs/adfs: remove unneeded variable make code cleaner FAT: use io_schedule_timeout() instead of congestion_wait() hfsplus: use struct_group_attr() for memcpy() region nilfs2: remove redundant pointer sbufs fs/binfmt_elf: use PT_LOAD p_align values for static PIE const_structs.checkpatch: add frequently used ops structs ... |
||
Kefeng Wang
|
7ecd19cfdf |
mm: percpu: generalize percpu related config
Patch series "mm: percpu: Cleanup percpu first chunk function".
When supporting page mapping percpu first chunk allocator on arm64, we
found there are lots of duplicated codes in percpu embed/page first chunk
allocator. This patchset is aimed to cleanup them and should no function
change.
The currently supported status about 'embed' and 'page' in Archs shows
below,
embed: NEED_PER_CPU_PAGE_FIRST_CHUNK
page: NEED_PER_CPU_EMBED_FIRST_CHUNK
embed page
------------------------
arm64 Y Y
mips Y N
powerpc Y Y
riscv Y N
sparc Y Y
x86 Y Y
------------------------
There are two interfaces about percpu first chunk allocator,
extern int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
size_t atom_size,
pcpu_fc_cpu_distance_fn_t cpu_distance_fn,
- pcpu_fc_alloc_fn_t alloc_fn,
- pcpu_fc_free_fn_t free_fn);
+ pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn);
extern int __init pcpu_page_first_chunk(size_t reserved_size,
- pcpu_fc_alloc_fn_t alloc_fn,
- pcpu_fc_free_fn_t free_fn,
- pcpu_fc_populate_pte_fn_t populate_pte_fn);
+ pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn);
The pcpu_fc_alloc_fn_t/pcpu_fc_free_fn_t is killed, we provide generic
pcpu_fc_alloc() and pcpu_fc_free() function, which are called in the
pcpu_embed/page_first_chunk().
1) For pcpu_embed_first_chunk(), pcpu_fc_cpu_to_node_fn_t is needed to be
provided when archs supported NUMA.
2) For pcpu_page_first_chunk(), the pcpu_fc_populate_pte_fn_t is killed too,
a generic pcpu_populate_pte() which marked '__weak' is provided, if you
need a different function to populate pte on the arch(like x86), please
provide its own implementation.
[1] https://github.com/kevin78/linux.git percpu-cleanup
This patch (of 4):
The HAVE_SETUP_PER_CPU_AREA/NEED_PER_CPU_EMBED_FIRST_CHUNK/
NEED_PER_CPU_PAGE_FIRST_CHUNK/USE_PERCPU_NUMA_NODE_ID configs, which have
duplicate definitions on platforms that subscribe it.
Move them into mm, drop these redundant definitions and instead just
select it on applicable platforms.
Link: https://lkml.kernel.org/r/20211216112359.103822-1-wangkefeng.wang@huawei.com
Link: https://lkml.kernel.org/r/20211216112359.103822-2-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Paolo Bonzini
|
4f5a884fc2 |
Merge branch 'kvm-pi-raw-spinlock' into HEAD
Bring in fix for VT-d posted interrupts before further changing the code in 5.17. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Linus Torvalds
|
35ce8ae9ae |
Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull signal/exit/ptrace updates from Eric Biederman:
"This set of changes deletes some dead code, makes a lot of cleanups
which hopefully make the code easier to follow, and fixes bugs found
along the way.
The end-game which I have not yet reached yet is for fatal signals
that generate coredumps to be short-circuit deliverable from
complete_signal, for force_siginfo_to_task not to require changing
userspace configured signal delivery state, and for the ptrace stops
to always happen in locations where we can guarantee on all
architectures that the all of the registers are saved and available on
the stack.
Removal of profile_task_ext, profile_munmap, and profile_handoff_task
are the big successes for dead code removal this round.
A bunch of small bug fixes are included, as most of the issues
reported were small enough that they would not affect bisection so I
simply added the fixes and did not fold the fixes into the changes
they were fixing.
There was a bug that broke coredumps piped to systemd-coredump. I
dropped the change that caused that bug and replaced it entirely with
something much more restrained. Unfortunately that required some
rebasing.
Some successes after this set of changes: There are few enough calls
to do_exit to audit in a reasonable amount of time. The lifetime of
struct kthread now matches the lifetime of struct task, and the
pointer to struct kthread is no longer stored in set_child_tid. The
flag SIGNAL_GROUP_COREDUMP is removed. The field group_exit_task is
removed. Issues where task->exit_code was examined with
signal->group_exit_code should been examined were fixed.
There are several loosely related changes included because I am
cleaning up and if I don't include them they will probably get lost.
The original postings of these changes can be found at:
https://lkml.kernel.org/r/87a6ha4zsd.fsf@email.froward.int.ebiederm.org
https://lkml.kernel.org/r/87bl1kunjj.fsf@email.froward.int.ebiederm.org
https://lkml.kernel.org/r/87r19opkx1.fsf_-_@email.froward.int.ebiederm.org
I trimmed back the last set of changes to only the obviously correct
once. Simply because there was less time for review than I had hoped"
* 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (44 commits)
ptrace/m68k: Stop open coding ptrace_report_syscall
ptrace: Remove unused regs argument from ptrace_report_syscall
ptrace: Remove second setting of PT_SEIZED in ptrace_attach
taskstats: Cleanup the use of task->exit_code
exit: Use the correct exit_code in /proc/<pid>/stat
exit: Fix the exit_code for wait_task_zombie
exit: Coredumps reach do_group_exit
exit: Remove profile_handoff_task
exit: Remove profile_task_exit & profile_munmap
signal: clean up kernel-doc comments
signal: Remove the helper signal_group_exit
signal: Rename group_exit_task group_exec_task
coredump: Stop setting signal->group_exit_task
signal: Remove SIGNAL_GROUP_COREDUMP
signal: During coredumps set SIGNAL_GROUP_EXIT in zap_process
signal: Make coredump handling explicit in complete_signal
signal: Have prepare_signal detect coredumps using signal->core_state
signal: Have the oom killer detect coredumps using signal->core_state
exit: Move force_uaccess back into do_exit
exit: Guarantee make_task_dead leaks the tsk when calling do_task_exit
...
|
||
|
Linus Torvalds
|
79e06c4c49 |
RISCV:
- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
ARM:
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
s390:
- fix sigp sense/start/stop/inconsistency
- cleanups
x86:
- Clean up some function prototypes more
- improved gfn_to_pfn_cache with proper invalidation, used by Xen emulation
- add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery
- completely remove potential TOC/TOU races in nested SVM consistency checks
- update some PMCs on emulated instructions
- Intel AMX support (joint work between Thomas and Intel)
- large MMU cleanups
- module parameter to disable PMU virtualization
- cleanup register cache
- first part of halt handling cleanups
- Hyper-V enlightened MSR bitmap support for nested hypervisors
Generic:
- clean up Makefiles
- introduce CONFIG_HAVE_KVM_DIRTY_RING
- optimize memslot lookup using a tree
- optimize vCPU array usage by converting to xarray
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"RISCV:
- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
ARM:
- Simplification of the 'vcpu first run' by integrating it into KVM's
'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to a
simpler state and less shared data between EL1 and EL2 in the nVHE
case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be unmapped
from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once the vcpu
xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
s390:
- fix sigp sense/start/stop/inconsistency
- cleanups
x86:
- Clean up some function prototypes more
- improved gfn_to_pfn_cache with proper invalidation, used by Xen
emulation
- add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery
- completely remove potential TOC/TOU races in nested SVM consistency
checks
- update some PMCs on emulated instructions
- Intel AMX support (joint work between Thomas and Intel)
- large MMU cleanups
- module parameter to disable PMU virtualization
- cleanup register cache
- first part of halt handling cleanups
- Hyper-V enlightened MSR bitmap support for nested hypervisors
Generic:
- clean up Makefiles
- introduce CONFIG_HAVE_KVM_DIRTY_RING
- optimize memslot lookup using a tree
- optimize vCPU array usage by converting to xarray"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (268 commits)
x86/fpu: Fix inline prefix warnings
selftest: kvm: Add amx selftest
selftest: kvm: Move struct kvm_x86_state to header
selftest: kvm: Reorder vcpu_load_state steps for AMX
kvm: x86: Disable interception for IA32_XFD on demand
x86/fpu: Provide fpu_sync_guest_vmexit_xfd_state()
kvm: selftests: Add support for KVM_CAP_XSAVE2
kvm: x86: Add support for getting/setting expanded xstate buffer
x86/fpu: Add uabi_size to guest_fpu
kvm: x86: Add CPUID support for Intel AMX
kvm: x86: Add XCR0 support for Intel AMX
kvm: x86: Disable RDMSR interception of IA32_XFD_ERR
kvm: x86: Emulate IA32_XFD_ERR for guest
kvm: x86: Intercept #NM for saving IA32_XFD_ERR
x86/fpu: Prepare xfd_err in struct fpu_guest
kvm: x86: Add emulation for IA32_XFD
x86/fpu: Provide fpu_update_guest_xfd() for IA32_XFD emulation
kvm: x86: Enable dynamic xfeatures at KVM_SET_CPUID2
x86/fpu: Provide fpu_enable_guest_xfd_features() for KVM
x86/fpu: Add guest support to xfd_enable_feature()
...
|
||
|
Linus Torvalds
|
d0a231f01e |
pci-v5.17-changes
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Merge tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Use pci_find_vsec_capability() instead of open-coding it (Andy
Shevchenko)
- Convert pci_dev_present() stub from macro to static inline to avoid
'unused variable' errors (Hans de Goede)
- Convert sysfs slot attributes from default_attrs to default_groups
(Greg Kroah-Hartman)
- Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum
(Rajat Jain)
- Remove unnecessary initialization of static variables (Longji Guo)
Resource management:
- Always write Intel I210 ROM BAR on update to work around device
defect (Bjorn Helgaas)
PCIe native device hotplug:
- Fix pciehp lockdep errors on Thunderbolt undock (Hans de Goede)
- Fix infinite loop in pciehp IRQ handler on power fault (Lukas
Wunner)
Power management:
- Convert amd64-agp, sis-agp, via-agp from legacy PCI power
management to generic power management (Vaibhav Gupta)
IOMMU:
- Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
so it can work with an IOMMU (Yifeng Li)
Error handling:
- Add PCI_ERROR_RESPONSE and related definitions for signaling and
checking for transaction errors on PCI (Naveen Naidu)
- Fabricate PCI_ERROR_RESPONSE data (~0) in config read wrappers,
instead of in host controller drivers, when transactions fail on
PCI (Naveen Naidu)
- Use PCI_POSSIBLE_ERROR() to check for possible failure of config
reads (Naveen Naidu)
Peer-to-peer DMA:
- Add Logan Gunthorpe as P2PDMA maintainer (Bjorn Helgaas)
ASPM:
- Calculate link L0s and L1 exit latencies when needed instead of
caching them (Saheed O. Bolarinwa)
- Calculate device L0s and L1 acceptable exit latencies when needed
instead of caching them (Saheed O. Bolarinwa)
- Remove struct aspm_latency since it's no longer needed (Saheed O.
Bolarinwa)
APM X-Gene PCIe controller driver:
- Fix IB window setup, which was broken by the fact that IB resources
are now sorted in address order instead of DT dma-ranges order (Rob
Herring)
Apple PCIe controller driver:
- Enable clock gating to save power (Hector Martin)
- Fix REFCLK1 enable/poll logic (Hector Martin)
Broadcom STB PCIe controller driver:
- Declare bitmap correctly for use by bitmap interfaces (Christophe
JAILLET)
- Clean up computation of legacy and non-legacy MSI bitmasks (Florian
Fainelli)
- Update suspend/resume/remove error handling to warn about errors
and not fail the operation (Jim Quinlan)
- Correct the "pcie" and "msi" interrupt descriptions in DT binding
(Jim Quinlan)
- Add DT bindings for endpoint voltage regulators (Jim Quinlan)
- Split brcm_pcie_setup() into two functions (Jim Quinlan)
- Add mechanism for turning on voltage regulators for connected
devices (Jim Quinlan)
- Turn voltage regulators for connected devices on/off when bus is
added or removed (Jim Quinlan)
- When suspending, don't turn off voltage regulators for wakeup
devices (Jim Quinlan)
Freescale i.MX6 PCIe controller driver:
- Add i.MX8MM support (Richard Zhu)
Freescale Layerscape PCIe controller driver:
- Use DWC common ops instead of layerscape-specific link-up functions
(Hou Zhiqiang)
Intel VMD host bridge driver:
- Honor platform ACPI _OSC feature negotiation for Root Ports below
VMD (Kai-Heng Feng)
- Add support for Raptor Lake SKUs (Karthik L Gopalakrishnan)
- Reset everything below VMD before enumerating to work around
failure to enumerate NVMe devices when guest OS reboots (Nirmal
Patel)
Bridge emulation (used by Marvell Aardvark and MVEBU):
- Make emulated ROM BAR read-only by default (Pali Rohár)
- Make some emulated legacy PCI bits read-only for PCIe devices (Pali
Rohár)
- Update reserved bits in emulated PCIe Capability (Pali Rohár)
- Allow drivers to emulate different PCIe Capability versions (Pali
Rohár)
- Set emulated Capabilities List bit for all PCIe devices, since they
must have at least a PCIe Capability (Pali Rohár)
Marvell Aardvark PCIe controller driver:
- Add bridge emulation definitions for PCIe DEVCAP2, DEVCTL2,
DEVSTA2, LNKCAP2, LNKCTL2, LNKSTA2, SLTCAP2, SLTCTL2, SLTSTA2 (Pali
Rohár)
- Add aardvark support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2
registers (Pali Rohár)
- Clear all MSIs at setup to avoid spurious interrupts (Pali Rohár)
- Disable bus mastering when unbinding host controller driver (Pali
Rohár)
- Mask all interrupts when unbinding host controller driver (Pali
Rohár)
- Fix memory leak in host controller unbind (Pali Rohár)
- Assert PERST# when unbinding host controller driver (Pali Rohár)
- Disable link training when unbinding host controller driver (Pali
Rohár)
- Disable common PHY when unbinding host controller driver (Pali
Rohár)
- Fix resource type checking to check only IORESOURCE_MEM, not
IORESOURCE_MEM_64, which is a flavor of IORESOURCE_MEM (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Implement pci_remap_iospace() for ARM so mvebu can use
devm_pci_remap_iospace() instead of the previous ARM-specific
pci_ioremap_io() interface (Pali Rohár)
- Use the standard pci_host_probe() instead of the device-specific
mvebu_pci_host_probe() (Pali Rohár)
- Replace all uses of ARM-specific pci_ioremap_io() with the ARM
implementation of the standard pci_remap_iospace() interface and
remove pci_ioremap_io() (Pali Rohár)
- Skip initializing invalid Root Ports (Pali Rohár)
- Check for errors from pci_bridge_emul_init() (Pali Rohár)
- Ignore any bridges at non-zero function numbers (Pali Rohár)
- Return ~0 data for invalid config read size (Pali Rohár)
- Disallow mapping interrupts on emulated bridges (Pali Rohár)
- Clear Root Port Memory & I/O Space Enable and Bus Master Enable at
initialization (Pali Rohár)
- Make type bits in Root Port I/O Base register read-only (Pali
Rohár)
- Disable Root Port windows when base/limit set to invalid values
(Pali Rohár)
- Set controller to Root Complex mode (Pali Rohár)
- Set Root Port Class Code to PCI Bridge (Pali Rohár)
- Update emulated Root Port secondary bus numbers to better reflect
the actual topology (Pali Rohár)
- Add PCI_BRIDGE_CTL_BUS_RESET support to emulated Root Ports so
pci_reset_secondary_bus() can reset connected devices (Pali Rohár)
- Add PCI_EXP_DEVCTL Error Reporting Enable support to emulated Root
Ports (Pali Rohár)
- Add PCI_EXP_RTSTA PME Status bit support to emulated Root Ports
(Pali Rohár)
- Add DEVCAP2, DEVCTL2 and LNKCTL2 support to emulated Root Ports on
Armada XP and newer devices (Pali Rohár)
- Export mvebu-mbus.c symbols to allow pci-mvebu.c to be a module
(Pali Rohár)
- Add support for compiling as a module (Pali Rohár)
MediaTek PCIe controller driver:
- Assert PERST# for 100ms to allow power and clock to stabilize
(qizhong cheng)
MediaTek PCIe Gen3 controller driver:
- Disable Mediatek DVFSRC voltage request since lack of DVFSRC to
respond to the request causes failure to exit L1 PM Substate
(Jianjun Wang)
MediaTek MT7621 PCIe controller driver:
- Declare mt7621_pci_ops static (Sergio Paracuellos)
- Give pcibios_root_bridge_prepare() access to host bridge windows
(Sergio Paracuellos)
- Move MIPS I/O coherency unit setup from driver to
pcibios_root_bridge_prepare() (Sergio Paracuellos)
- Add missing MODULE_LICENSE() (Sergio Paracuellos)
- Allow COMPILE_TEST for all arches (Sergio Paracuellos)
Microsoft Hyper-V host bridge driver:
- Add hv-internal interfaces to encapsulate arch IRQ dependencies
(Sunil Muthuswamy)
- Add arm64 Hyper-V vPCI support (Sunil Muthuswamy)
Qualcomm PCIe controller driver:
- Undo PM setup in qcom_pcie_probe() error handling path (Christophe
JAILLET)
- Use __be16 type to store return value from cpu_to_be16()
(Manivannan Sadhasivam)
- Constify static dw_pcie_ep_ops (Rikard Falkeborn)
Renesas R-Car PCIe controller driver:
- Fix aarch32 abort handler so it doesn't check the wrong bus clock
before accessing the host controller (Marek Vasut)
TI Keystone PCIe controller driver:
- Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode
DT properties (Kishon Vijay Abraham I)
MicroSemi Switchtec management driver:
- Add Gen4 automotive device IDs (Kelvin Cao)
- Declare state_names[] as static so it's not allocated and
initialized for every call (Kelvin Cao)
Host controller driver cleanups:
- Use of_device_get_match_data(), not of_match_device(), when we only
need the device data in altera, artpec6, cadence, designware-plat,
dra7xx, keystone, kirin (Fan Fei)
- Drop pointless of_device_get_match_data() cast in j721e (Bjorn
Helgaas)
- Drop redundant struct device * from j721e since struct cdns_pcie
already has one (Bjorn Helgaas)
- Rename driver structs to *_pcie in intel-gw, iproc, ls-gen4,
mediatek-gen3, microchip, mt7621, rcar-gen2, tegra194, uniphier,
xgene, xilinx, xilinx-cpm for consistency across drivers (Fan Fei)
- Fix invalid address space conversions in hisi, spear13xx (Bjorn
Helgaas)
Miscellaneous:
- Sort Intel Device IDs by value (Andy Shevchenko)
- Change Capability offsets to hex to match spec (Baruch Siach)
- Correct misspellings (Krzysztof Wilczyński)
- Terminate statement with semicolon in pci_endpoint_test.c (Ming
Wang)"
* tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (151 commits)
PCI: mt7621: Allow COMPILE_TEST for all arches
PCI: mt7621: Add missing MODULE_LICENSE()
PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare()
PCI: Let pcibios_root_bridge_prepare() access bridge->windows
PCI: mt7621: Declare mt7621_pci_ops static
PCI: brcmstb: Do not turn off WOL regulators on suspend
PCI: brcmstb: Add control of subdevice voltage regulators
PCI: brcmstb: Add mechanism to turn on subdev regulators
PCI: brcmstb: Split brcm_pcie_setup() into two funcs
dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map.
PCI: brcmstb: Fix function return value handling
PCI: brcmstb: Do not use __GENMASK
PCI: brcmstb: Declare 'used' as bitmap, not unsigned long
PCI: hv: Add arm64 Hyper-V vPCI support
PCI: hv: Make the code arch neutral by adding arch specific interfaces
PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors
x86/PCI: Remove initialization of static variables to false
PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum
misc: pci_endpoint_test: Terminate statement with semicolon
...
|
||
|
Linus Torvalds
|
f56caedaf9 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "146 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, vfs, and mm (slab-generic, slab, kmemleak, dax, kasan, debug, pagecache, gup, shmem, frontswap, memremap, memcg, selftests, pagemap, dma, vmalloc, memory-failure, hugetlb, userfaultfd, vmscan, mempolicy, oom-kill, hugetlbfs, migration, thp, ksm, page-poison, percpu, rmap, zswap, zram, cleanups, hmm, and damon)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (146 commits) mm/damon: hide kernel pointer from tracepoint event mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging mm/damon/dbgfs: remove an unnecessary variable mm/damon: move the implementation of damon_insert_region to damon.h mm/damon: add access checking for hugetlb pages Docs/admin-guide/mm/damon/usage: update for schemes statistics mm/damon/dbgfs: support all DAMOS stats Docs/admin-guide/mm/damon/reclaim: document statistics parameters mm/damon/reclaim: provide reclamation statistics mm/damon/schemes: account how many times quota limit has exceeded mm/damon/schemes: account scheme actions that successfully applied mm/damon: remove a mistakenly added comment for a future feature Docs/admin-guide/mm/damon/usage: update for kdamond_pid and (mk|rm)_contexts Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning Docs/admin-guide/mm/damon/usage: remove redundant information Docs/admin-guide/mm/damon/usage: update for scheme quotas and watermarks mm/damon: convert macro functions to static inline functions mm/damon: modify damon_rand() macro to static inline function mm/damon: move damon_rand() definition into damon.h ... |
||
Yury Norov
|
c126a53c27 |
arch: remove GENERIC_FIND_FIRST_BIT entirely
In 5.12 cycle we enabled GENERIC_FIND_FIRST_BIT config option for ARM64 and MIPS. It increased performance and shrunk .text size; and so far I didn't receive any negative feedback on the change. https://lore.kernel.org/linux-arch/20210225135700.1381396-1-yury.norov@gmail.com/ Now I think it's a good time to switch all architectures to use find_{first,last}_bit() unconditionally, and so remove corresponding config option. The patch does't introduce functioal changes for arc, arm, arm64, mips, m68k, s390 and x86, for other architectures I expect improvement both in performance and .text size. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Alexander Lobakin <alobakin@pm.me> (mips) Reviewed-by: Alexander Lobakin <alobakin@pm.me> (mips) Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Will Deacon <will@kernel.org> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> |
||
|
Yury Norov
|
47d8c15615 |
include: move find.h from asm_generic to linux
find_bit API and bitmap API are closely related, but inclusion paths are different - include/asm-generic and include/linux, correspondingly. In the past it made a lot of troubles due to circular dependencies and/or undefined symbols. Fix this by moving find.h under include/linux. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> |
||
Aneesh Kumar K.V
|
21b084fdf2 |
mm/mempolicy: wire up syscall set_mempolicy_home_node
Link: https://lkml.kernel.org/r/20211202123810.267175-4-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Ben Widawsky <ben.widawsky@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: <linux-api@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Qi Zheng
|
36ef159f44 |
mm: remove redundant check about FAULT_FLAG_ALLOW_RETRY bit
Since commit
|
||
|
Kefeng Wang
|
60115fa54a |
mm: defer kmemleak object creation of module_alloc()
Yongqiang reports a kmemleak panic when module insmod/rmmod with KASAN
enabled(without KASAN_VMALLOC) on x86[1].
When the module area allocates memory, it's kmemleak_object is created
successfully, but the KASAN shadow memory of module allocation is not
ready, so when kmemleak scan the module's pointer, it will panic due to
no shadow memory with KASAN check.
module_alloc
__vmalloc_node_range
kmemleak_vmalloc
kmemleak_scan
update_checksum
kasan_module_alloc
kmemleak_ignore
Note, there is no problem if KASAN_VMALLOC enabled, the modules area
entire shadow memory is preallocated. Thus, the bug only exits on ARCH
which supports dynamic allocation of module area per module load, for
now, only x86/arm64/s390 are involved.
Add a VM_DEFER_KMEMLEAK flags, defer vmalloc'ed object register of
kmemleak in module_alloc() to fix this issue.
[1] https://lore.kernel.org/all/6d41e2b9-4692-5ec4-b1cd-cbe29ae89739@huawei.com/
[wangkefeng.wang@huawei.com: fix build]
Link: https://lkml.kernel.org/r/20211125080307.27225-1-wangkefeng.wang@huawei.com
[akpm@linux-foundation.org: simplify ifdefs, per Andrey]
Link: https://lkml.kernel.org/r/CA+fCnZcnwJHUQq34VuRxpdoY6_XbJCDJ-jopksS5Eia4PijPzw@mail.gmail.com
Link: https://lkml.kernel.org/r/20211124142034.192078-1-wangkefeng.wang@huawei.com
Fixes:
|
||
|
Marc Zyngier
|
094d00f8ca |
KVM: arm64: pkvm: Use the mm_ops indirection for cache maintenance
CMOs issued from EL2 cannot directly use the kernel helpers,
as EL2 doesn't have a mapping of the guest pages. Oops.
Instead, use the mm_ops indirection to use helpers that will
perform a mapping at EL2 and allow the CMO to be effective.
Fixes:
|
||
|
Linus Torvalds
|
3ceff4ea07 |
sound updates for 5.17-rc1
It's a relatively calm development cycle, but still lots of updates in
the driver side like Intel SOF. Below are some highlights:
* ALSA / ASoC core:
- A new kselftest for ALSA control API
- PCM NO_REWINDS support
- Potential race fixes around control removals
- Unify x86 SG-buffer memory allocation code
- Cleanups and race fixes for ASoC DPCM locking
* ASoC:
- Refinements and cleanups around the delay() APIs
- Wider use of dev_err_probe().
- Continuing cleanups and improvements to the SOF code
- Support for pin switches in simple-card derived cards
- Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel
systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20
S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments
TLV320ADC3xxx
* HD-audio / USB-audio:
- Fix deadlock at HD-audio codec unbinding
- Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec
- Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device
* Misc:
- Fix virmidi drain behavior
Note that the merge of CS35L41 codec support is still half-baked, and
at least one ACPI change is missing. Although this won't hinder the
kernel build itself, we're going to catch up before RC1.
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Merge tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's a relatively calm development cycle, but still lots of updates in
the driver side like Intel SOF. Below are some highlights:
ALSA / ASoC core:
- A new kselftest for ALSA control API
- PCM NO_REWINDS support
- Potential race fixes around control removals
- Unify x86 SG-buffer memory allocation code
- Cleanups and race fixes for ASoC DPCM locking
ASoC:
- Refinements and cleanups around the delay() APIs
- Wider use of dev_err_probe().
- Continuing cleanups and improvements to the SOF code
- Support for pin switches in simple-card derived cards
- Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel
systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20
S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments
TLV320ADC3xxx
HD-audio / USB-audio:
- Fix deadlock at HD-audio codec unbinding
- Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec
- Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device
Misc:
- Fix virmidi drain behavior
Note that the merge of CS35L41 codec support is still half-baked, and
at least one ACPI change is missing. Although this won't hinder the
kernel build itself, we're going to catch up before RC1"
* tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits)
ALSA: hda: intel-dsp-config: reorder the config table
ALSA: hda: intel-dsp-config: add JasperLake support
ALSA: hda: cs35l41: fix double free on error in probe()
ALSA: hda: Fix dependencies of CS35L41 on SPI/I2C buses
ALSA: hda: Fix dependency on ASoC cs35l41 codec
ASoC: cs35l41: Add support for hibernate memory retention mode
ASoC: cs35l41: Update handling of test key registers
ALSA: intel_hdmi: Check for error num after setting mask
ASoC: wcd9335: Keep a RX port value for each SLIM RX mux
ASoC: amd: acp: acp-mach: Change default RT1019 amp dev id
ALSA: virmidi: Remove duplicated code
ALSA: seq: virmidi: Add a drain operation
ASoC: topology: Fix typo
ASoC: fsl_asrc: refine the check of available clock divider
ASoC: Intel: bytcr_rt5640: Add support for external GPIO jack-detect
ASoC: Intel: bytcr_rt5640: Support retrieving the codec IRQ from the AMCR0F28 ACPI dev
ASoC: rt5640: Add support for boards with an external jack-detect GPIO
ASoC: rt5640: Allow snd_soc_component_set_jack() to override the codec IRQ
ASoC: rt5640: Change jack_work to a delayed_work
ASoC: rt5640: Fix possible NULL pointer deref on resume
...
|
||
|
Linus Torvalds
|
8e5b0adeea |
Peter Zijlstra says:
"Cleanup of the perf/kvm interaction." -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmHdvbkACgkQEsHwGGHe VUrX7w/9FwKUm0WlGcQIAOSdWk85N2qAVH3brYcQHNpTCVe68TOqTCrxCDrGgyUq 2XnCOim99MUlnsVU6QRZqF4yJ8S1tGrc0COJ/qR4SGntucu0oYuDe2aMVq+mWUD7 /IThA0oMRfhki9WwAyUuyCrXzk4blZdlrXyYIRMJGl9xeGNy3cvUtU8f68Kiy22E OcmQ/o9Etsr38dueAMU1KYEmgSTvG47rS8nfyRUu3QpJHbyLmRXH32PQrm3tduxS Bw3gMAH5vqq1UDZJ8ZvsPsO0vFX7dtnKEwEKz4qdtRWk9gi8oLGHIwIXC+VtNqpf mCmX33Jw8uFz9h3JhE84J0j/CgsWHoU6MOs0MOch4Tb69/BfCjQnw1enImhejG8q YEIDjJf/vgRNaw9PYshiTHT+EJTe9inT3S4eK/ynLRDUEslAqyWZZm7bUE/XrEDi yRyGIxry/hNZVvRkXT9QBw32fpgnIH2NAMPLEjJSGCRxT89Tfqz0aRDfacCuHTTh P8pAeiDuy/6RkDlQckOZJWOFFh2IHsykX2l3IJcHqVRqt4ob9b+SZB5qoH/Mv9qb MSAqdFUupYZFC+6XuPAeX5/Mo+wSkP+pYYSbWNxjUa0yNiYecOjE7/8T2SB2y6Mx lk2L0ypsZUYSmpHSfvOdPmf6ucj19/5B4+VCX6PQfcNJTnvvhTE= =tU5G -----END PGP SIGNATURE----- Merge tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Borislav Petkov: "Cleanup of the perf/kvm interaction." * tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Drop guest callback (un)register stubs KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y KVM: arm64: Convert to the generic perf callbacks KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c KVM: Move x86's perf guest info callbacks to generic KVM KVM: x86: More precisely identify NMI from guest when handling PMI KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable perf/core: Use static_call to optimize perf_guest_info_callbacks perf: Force architectures to opt-in to guest callbacks perf: Add wrappers for invoking guest callbacks perf/core: Rework guest callbacks to prepare for static_call support perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv perf: Stop pretending that perf can handle multiple guest callbacks KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest KVM: x86: Register perf callbacks after calling vendor's hardware_setup() perf: Protect perf_guest_cbs with RCU |
||
Sunil Muthuswamy
|
d9932b4691 |
PCI: hv: Add arm64 Hyper-V vPCI support
Add arm64 Hyper-V vPCI support by implementing the arch specific interfaces. Introduce an IRQ domain and chip specific to Hyper-v vPCI that is based on SPIs. The IRQ domain parents itself to the arch GIC IRQ domain for basic vector management. [bhelgaas: squash in fix from Yang Li <yang.lee@linux.alibaba.com>: https://lore.kernel.org/r/20220112003324.62755-1-yang.lee@linux.alibaba.com] Link: https://lore.kernel.org/r/1641411156-31705-3-git-send-email-sunilmut@linux.microsoft.com Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> |
||
|
Linus Torvalds
|
daadb3bd0e |
Peter Zijlstra says:
"Lots of cleanups and preparation; highlights:
- futex: Cleanup and remove runtime futex_cmpxchg detection
- rtmutex: Some fixes for the PREEMPT_RT locking infrastructure
- kcsan: Share owner_on_cpu() between mutex,rtmutex and rwsem and
annotate the racy owner->on_cpu access *once*.
- atomic64: Dead-Code-Elemination"
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Merge tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Borislav Petkov:
"Lots of cleanups and preparation. Highlights:
- futex: Cleanup and remove runtime futex_cmpxchg detection
- rtmutex: Some fixes for the PREEMPT_RT locking infrastructure
- kcsan: Share owner_on_cpu() between mutex,rtmutex and rwsem and
annotate the racy owner->on_cpu access *once*.
- atomic64: Dead-Code-Elemination"
[ Description above by Peter Zijlstra ]
* tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomic: atomic64: Remove unusable atomic ops
futex: Fix additional regressions
locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h
x86/mm: Include spinlock_t definition in pgtable.
locking: Mark racy reads of owner->on_cpu
locking: Make owner_on_cpu() into <linux/sched.h>
lockdep/selftests: Adapt ww-tests for PREEMPT_RT
lockdep/selftests: Skip the softirq related tests on PREEMPT_RT
lockdep/selftests: Unbalanced migrate_disable() & rcu_read_lock().
lockdep/selftests: Avoid using local_lock_{acquire|release}().
lockdep: Remove softirq accounting on PREEMPT_RT.
locking/rtmutex: Add rt_mutex_lock_nest_lock() and rt_mutex_lock_killable().
locking/rtmutex: Squash self-deadlock check for ww_rt_mutex.
locking: Remove rt_rwlock_is_contended().
sched: Trigger warning if ->migration_disabled counter underflows.
futex: Fix sparc32/m68k/nds32 build regression
futex: Remove futex_cmpxchg detection
futex: Ensure futex_atomic_cmpxchg_inatomic() is present
kernel/locking: Use a pointer in ww_mutex_trylock().
|
||
|
Linus Torvalds
|
b35b6d4d71 |
Power management updates for 5.17-rc1
- Add new P-state driver for AMD processors (Huang Rui).
- Fix initialization of min and max frequency QoS requests in the
cpufreq core (Rafael Wysocki).
- Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada).
- Make intel_pstate update cpuinfo.max_freq when notified of HWP
capabilities changes and drop a redundant function call from that
driver (Rafael Wysocki).
- Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
Stephen Boyd, Vladimir Zapolskiy).
- Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan).
- Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
Luba).
- Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).
- Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).
- Fix two comments in cpuidle code (Jason Wang, Yang Li).
- Allow model-specific normal EPB value to be used in the intel_epb
sysfs attribute handling code (Srinivas Pandruvada).
- Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).
- Add safety net to supplier device release in the runtime PM core
code (Rafael Wysocki).
- Capture device status before disabling runtime PM for it (Rafael
Wysocki).
- Add new macros for declaring PM operations to allow drivers to
avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
update some drivers to use these macros (Paul Cercueil).
- Allow ACPI hardware signature to be honoured during restore from
hibernation (David Woodhouse).
- Update outdated operating performance points (OPP) documentation
(Tang Yizhou).
- Reduce log severity for informative message regarding frequency
transition failures in devfreq (Tzung-Bi Shih).
- Add DRAM frequency controller devfreq driver for Allwinner sunXi
SoCs (Samuel Holland).
- Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
Bergmann).
- Add support for new layout of Psys PowerLimit Register on SPR to
the Intel RAPL power capping driver (Zhang Rui).
- Fix typo in a comment in idle_inject.c (Jason Wang).
- Remove unused function definition from the DTPM (Dynamit Thermal
Power Management) power capping framework (Daniel Lezcano).
- Reduce DTPM trace verbosity (Daniel Lezcano).
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Merge tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The most signigicant change here is the addition of a new cpufreq
'P-state' driver for AMD processors as a better replacement for the
venerable acpi-cpufreq driver.
There are also other cpufreq updates (in the core, intel_pstate, ARM
drivers), PM core updates (mostly related to adding new macros for
declaring PM operations which should make the lives of driver
developers somewhat easier), and a bunch of assorted fixes and
cleanups.
Summary:
- Add new P-state driver for AMD processors (Huang Rui).
- Fix initialization of min and max frequency QoS requests in the
cpufreq core (Rafael Wysocki).
- Fix EPP handling on Alder Lake in intel_pstate (Srinivas
Pandruvada).
- Make intel_pstate update cpuinfo.max_freq when notified of HWP
capabilities changes and drop a redundant function call from that
driver (Rafael Wysocki).
- Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
Stephen Boyd, Vladimir Zapolskiy).
- Fix double devm_remap() in the Mediatek cpufreq driver (Hector
Yuan).
- Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
Luba).
- Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).
- Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).
- Fix two comments in cpuidle code (Jason Wang, Yang Li).
- Allow model-specific normal EPB value to be used in the intel_epb
sysfs attribute handling code (Srinivas Pandruvada).
- Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).
- Add safety net to supplier device release in the runtime PM core
code (Rafael Wysocki).
- Capture device status before disabling runtime PM for it (Rafael
Wysocki).
- Add new macros for declaring PM operations to allow drivers to
avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
update some drivers to use these macros (Paul Cercueil).
- Allow ACPI hardware signature to be honoured during restore from
hibernation (David Woodhouse).
- Update outdated operating performance points (OPP) documentation
(Tang Yizhou).
- Reduce log severity for informative message regarding frequency
transition failures in devfreq (Tzung-Bi Shih).
- Add DRAM frequency controller devfreq driver for Allwinner sunXi
SoCs (Samuel Holland).
- Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
Bergmann).
- Add support for new layout of Psys PowerLimit Register on SPR to
the Intel RAPL power capping driver (Zhang Rui).
- Fix typo in a comment in idle_inject.c (Jason Wang).
- Remove unused function definition from the DTPM (Dynamit Thermal
Power Management) power capping framework (Daniel Lezcano).
- Reduce DTPM trace verbosity (Daniel Lezcano)"
* tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error
cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State
cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment
cpuidle: use default_groups in kobj_type
x86: intel_epb: Allow model specific normal EPB value
MAINTAINERS: Add AMD P-State driver maintainer entry
Documentation: amd-pstate: Add AMD P-State driver introduction
cpufreq: amd-pstate: Add AMD P-State performance attributes
cpufreq: amd-pstate: Add AMD P-State frequencies attributes
cpufreq: amd-pstate: Add boost mode support for AMD P-State
cpufreq: amd-pstate: Add trace for AMD P-State module
cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution
cpufreq: amd-pstate: Add fast switch function for AMD P-State
cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors
ACPI: CPPC: Add CPPC enable register function
ACPI: CPPC: Check present CPUs for determining _CPC is valid
ACPI: CPPC: Implement support for SystemIO registers
x86/msr: Add AMD CPPC MSR definitions
x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag
cpufreq: use default_groups in kobj_type
...
|
||
|
Linus Torvalds
|
8efd0d9c31 |
Networking changes for 5.17.
Core
----
- Defer freeing TCP skbs to the BH handler, whenever possible,
or at least perform the freeing outside of the socket lock section
to decrease cross-CPU allocator work and improve latency.
- Add netdevice refcount tracking to locate sources of netdevice
and net namespace refcount leaks.
- Make Tx watchdog less intrusive - avoid pausing Tx and restarting
all queues from a single CPU removing latency spikes.
- Various small optimizations throughout the stack from Eric Dumazet.
- Make netdev->dev_addr[] constant, force modifications to go via
appropriate helpers to allow us to keep addresses in ordered data
structures.
- Replace unix_table_lock with per-hash locks, improving performance
of bind() calls.
- Extend skb drop tracepoint with a drop reason.
- Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
BPF
---
- New helpers:
- bpf_find_vma(), find and inspect VMAs for profiling use cases
- bpf_loop(), runtime-bounded loop helper trading some execution
time for much faster (if at all converging) verification
- bpf_strncmp(), improve performance, avoid compiler flakiness
- bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
for tracing programs, all inlined by the verifier
- Support BPF relocations (CO-RE) in the kernel loader.
- Further the support for BTF_TYPE_TAG annotations.
- Allow access to local storage in sleepable helpers.
- Convert verifier argument types to a composable form with different
attributes which can be shared across types (ro, maybe-null).
- Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
creating new, extensible ones where missing and deprecating those
to be removed.
Protocols
---------
- WiFi (mac80211/cfg80211):
- notify user space about long "come back in N" AP responses,
allow it to react to such temporary rejections
- allow non-standard VHT MCS 10/11 rates
- use coarse time in airtime fairness code to save CPU cycles
- Bluetooth:
- rework of HCI command execution serialization to use a common
queue and work struct, and improve handling errors reported
in the middle of a batch of commands
- rework HCI event handling to use skb_pull_data, avoiding packet
parsing pitfalls
- support AOSP Bluetooth Quality Report
- SMC:
- support net namespaces, following the RDMA model
- improve connection establishment latency by pre-clearing buffers
- introduce TCP ULP for automatic redirection to SMC
- Multi-Path TCP:
- support ioctls: SIOCINQ, OUTQ, and OUTQNSD
- support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
- support cmsgs: TCP_INQ
- improvements in the data scheduler (assigning data to subflows)
- support fastclose option (quick shutdown of the full MPTCP
connection, similar to TCP RST in regular TCP)
- MCTP (Management Component Transport) over serial, as defined by
DMTF spec DSP0253 - "MCTP Serial Transport Binding".
Driver API
----------
- Support timestamping on bond interfaces in active/passive mode.
- Introduce generic phylink link mode validation for drivers which
don't have any quirks and where MAC capability bits fully express
what's supported. Allow PCS layer to participate in the validation.
Convert a number of drivers.
- Add support to set/get size of buffers on the Rx rings and size of
the tx copybreak buffer via ethtool.
- Support offloading TC actions as first-class citizens rather than
only as attributes of filters, improve sharing and device resource
utilization.
- WiFi (mac80211/cfg80211):
- support forwarding offload (ndo_fill_forward_path)
- support for background radar detection hardware
- SA Query Procedures offload on the AP side
New hardware / drivers
----------------------
- tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
real-time requirements for isochronous communication with protocols
like OPC UA Pub/Sub.
- Qualcomm BAM-DMUX WWAN - driver for data channels of modems
integrated into many older Qualcomm SoCs, e.g. MSM8916 or
MSM8974 (qcom_bam_dmux).
- Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch
driver with support for bridging, VLANs and multicast forwarding
(lan966x).
- iwlmei driver for co-operating between Intel's WiFi driver and
Intel's Active Management Technology (AMT) devices.
- mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
- Bluetooth:
- MediaTek MT7921 SDIO devices
- Foxconn MT7922A
- Realtek RTL8852AE
Drivers
-------
- Significantly improve performance in the datapaths of:
lan78xx, ax88179_178a, lantiq_xrx200, bnxt.
- Intel Ethernet NICs:
- igb: support PTP/time PEROUT and EXTTS SDP functions on
82580/i354/i350 adapters
- ixgbevf: new PF -> VF mailbox API which avoids the risk of
mailbox corruption with ESXi
- iavf: support configuration of VLAN features of finer granularity,
stacked tags and filtering
- ice: PTP support for new E822 devices with sub-ns precision
- ice: support firmware activation without reboot
- Mellanox Ethernet NICs (mlx5):
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- support TC forwarding when tunnel encap and decap happen between
two ports of the same NIC
- dynamically size and allow disabling various features to save
resources for running in embedded / SmartNIC scenarios
- Broadcom Ethernet NICs (bnxt):
- use page frag allocator to improve Rx performance
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- Other Ethernet NICs:
- amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
- Microsoft cloud/virtual NIC (mana):
- add XDP support (PASS, DROP, TX)
- Mellanox Ethernet switches (mlxsw):
- initial support for Spectrum-4 ASICs
- VxLAN with IPv6 underlay
- Marvell Ethernet switches (prestera):
- support flower flow templates
- add basic IP forwarding support
- NXP embedded Ethernet switches (ocelot & felix):
- support Per-Stream Filtering and Policing (PSFP)
- enable cut-through forwarding between ports by default
- support FDMA to improve packet Rx/Tx to CPU
- Other embedded switches:
- hellcreek: improve trapping management (STP and PTP) packets
- qca8k: support link aggregation and port mirroring
- Qualcomm 802.11ax WiFi (ath11k):
- qca6390, wcn6855: enable 802.11 power save mode in station mode
- BSS color change support
- WCN6855 hw2.1 support
- 11d scan offload support
- scan MAC address randomization support
- full monitor mode, only supported on QCN9074
- qca6390/wcn6855: report signal and tx bitrate
- qca6390: rfkill support
- qca6390/wcn6855: regdb.bin support
- Intel WiFi (iwlwifi):
- support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
in cooperation with the BIOS
- support for Optimized Connectivity Experience (OCE) scan
- support firmware API version 68
- lots of preparatory work for the upcoming Bz device family
- MediaTek WiFi (mt76):
- Specific Absorption Rate (SAR) support
- mt7921: 160 MHz channel support
- RealTek WiFi (rtw88):
- Specific Absorption Rate (SAR) support
- scan offload
- Other WiFi NICs
- ath10k: support fetching (pre-)calibration data from nvmem
- brcmfmac: configure keep-alive packet on suspend
- wcn36xx: beacon filter support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core
----
- Defer freeing TCP skbs to the BH handler, whenever possible, or at
least perform the freeing outside of the socket lock section to
decrease cross-CPU allocator work and improve latency.
- Add netdevice refcount tracking to locate sources of netdevice and
net namespace refcount leaks.
- Make Tx watchdog less intrusive - avoid pausing Tx and restarting
all queues from a single CPU removing latency spikes.
- Various small optimizations throughout the stack from Eric Dumazet.
- Make netdev->dev_addr[] constant, force modifications to go via
appropriate helpers to allow us to keep addresses in ordered data
structures.
- Replace unix_table_lock with per-hash locks, improving performance
of bind() calls.
- Extend skb drop tracepoint with a drop reason.
- Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
BPF
---
- New helpers:
- bpf_find_vma(), find and inspect VMAs for profiling use cases
- bpf_loop(), runtime-bounded loop helper trading some execution
time for much faster (if at all converging) verification
- bpf_strncmp(), improve performance, avoid compiler flakiness
- bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
for tracing programs, all inlined by the verifier
- Support BPF relocations (CO-RE) in the kernel loader.
- Further the support for BTF_TYPE_TAG annotations.
- Allow access to local storage in sleepable helpers.
- Convert verifier argument types to a composable form with different
attributes which can be shared across types (ro, maybe-null).
- Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
creating new, extensible ones where missing and deprecating those
to be removed.
Protocols
---------
- WiFi (mac80211/cfg80211):
- notify user space about long "come back in N" AP responses,
allow it to react to such temporary rejections
- allow non-standard VHT MCS 10/11 rates
- use coarse time in airtime fairness code to save CPU cycles
- Bluetooth:
- rework of HCI command execution serialization to use a common
queue and work struct, and improve handling errors reported in
the middle of a batch of commands
- rework HCI event handling to use skb_pull_data, avoiding packet
parsing pitfalls
- support AOSP Bluetooth Quality Report
- SMC:
- support net namespaces, following the RDMA model
- improve connection establishment latency by pre-clearing buffers
- introduce TCP ULP for automatic redirection to SMC
- Multi-Path TCP:
- support ioctls: SIOCINQ, OUTQ, and OUTQNSD
- support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
- support cmsgs: TCP_INQ
- improvements in the data scheduler (assigning data to subflows)
- support fastclose option (quick shutdown of the full MPTCP
connection, similar to TCP RST in regular TCP)
- MCTP (Management Component Transport) over serial, as defined by
DMTF spec DSP0253 - "MCTP Serial Transport Binding".
Driver API
----------
- Support timestamping on bond interfaces in active/passive mode.
- Introduce generic phylink link mode validation for drivers which
don't have any quirks and where MAC capability bits fully express
what's supported. Allow PCS layer to participate in the validation.
Convert a number of drivers.
- Add support to set/get size of buffers on the Rx rings and size of
the tx copybreak buffer via ethtool.
- Support offloading TC actions as first-class citizens rather than
only as attributes of filters, improve sharing and device resource
utilization.
- WiFi (mac80211/cfg80211):
- support forwarding offload (ndo_fill_forward_path)
- support for background radar detection hardware
- SA Query Procedures offload on the AP side
New hardware / drivers
----------------------
- tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
real-time requirements for isochronous communication with protocols
like OPC UA Pub/Sub.
- Qualcomm BAM-DMUX WWAN - driver for data channels of modems
integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974
(qcom_bam_dmux).
- Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver
with support for bridging, VLANs and multicast forwarding
(lan966x).
- iwlmei driver for co-operating between Intel's WiFi driver and
Intel's Active Management Technology (AMT) devices.
- mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
- Bluetooth:
- MediaTek MT7921 SDIO devices
- Foxconn MT7922A
- Realtek RTL8852AE
Drivers
-------
- Significantly improve performance in the datapaths of: lan78xx,
ax88179_178a, lantiq_xrx200, bnxt.
- Intel Ethernet NICs:
- igb: support PTP/time PEROUT and EXTTS SDP functions on
82580/i354/i350 adapters
- ixgbevf: new PF -> VF mailbox API which avoids the risk of
mailbox corruption with ESXi
- iavf: support configuration of VLAN features of finer
granularity, stacked tags and filtering
- ice: PTP support for new E822 devices with sub-ns precision
- ice: support firmware activation without reboot
- Mellanox Ethernet NICs (mlx5):
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- support TC forwarding when tunnel encap and decap happen between
two ports of the same NIC
- dynamically size and allow disabling various features to save
resources for running in embedded / SmartNIC scenarios
- Broadcom Ethernet NICs (bnxt):
- use page frag allocator to improve Rx performance
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- Other Ethernet NICs:
- amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
- Microsoft cloud/virtual NIC (mana):
- add XDP support (PASS, DROP, TX)
- Mellanox Ethernet switches (mlxsw):
- initial support for Spectrum-4 ASICs
- VxLAN with IPv6 underlay
- Marvell Ethernet switches (prestera):
- support flower flow templates
- add basic IP forwarding support
- NXP embedded Ethernet switches (ocelot & felix):
- support Per-Stream Filtering and Policing (PSFP)
- enable cut-through forwarding between ports by default
- support FDMA to improve packet Rx/Tx to CPU
- Other embedded switches:
- hellcreek: improve trapping management (STP and PTP) packets
- qca8k: support link aggregation and port mirroring
- Qualcomm 802.11ax WiFi (ath11k):
- qca6390, wcn6855: enable 802.11 power save mode in station mode
- BSS color change support
- WCN6855 hw2.1 support
- 11d scan offload support
- scan MAC address randomization support
- full monitor mode, only supported on QCN9074
- qca6390/wcn6855: report signal and tx bitrate
- qca6390: rfkill support
- qca6390/wcn6855: regdb.bin support
- Intel WiFi (iwlwifi):
- support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
in cooperation with the BIOS
- support for Optimized Connectivity Experience (OCE) scan
- support firmware API version 68
- lots of preparatory work for the upcoming Bz device family
- MediaTek WiFi (mt76):
- Specific Absorption Rate (SAR) support
- mt7921: 160 MHz channel support
- RealTek WiFi (rtw88):
- Specific Absorption Rate (SAR) support
- scan offload
- Other WiFi NICs
- ath10k: support fetching (pre-)calibration data from nvmem
- brcmfmac: configure keep-alive packet on suspend
- wcn36xx: beacon filter support"
* tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits)
tcp: tcp_send_challenge_ack delete useless param `skb`
net/qla3xxx: Remove useless DMA-32 fallback configuration
rocker: Remove useless DMA-32 fallback configuration
hinic: Remove useless DMA-32 fallback configuration
lan743x: Remove useless DMA-32 fallback configuration
net: enetc: Remove useless DMA-32 fallback configuration
cxgb4vf: Remove useless DMA-32 fallback configuration
cxgb4: Remove useless DMA-32 fallback configuration
cxgb3: Remove useless DMA-32 fallback configuration
bnx2x: Remove useless DMA-32 fallback configuration
et131x: Remove useless DMA-32 fallback configuration
be2net: Remove useless DMA-32 fallback configuration
vmxnet3: Remove useless DMA-32 fallback configuration
bna: Simplify DMA setting
net: alteon: Simplify DMA setting
myri10ge: Simplify DMA setting
qlcnic: Simplify DMA setting
net: allwinner: Fix print format
page_pool: remove spinlock in page_pool_refill_alloc_cache()
amt: fix wrong return type of amt_send_membership_update()
...
|
||
|
Linus Torvalds
|
48a60bdb2b |
- Add a set of thread_info.flags accessors which snapshot it before
accesing it in order to prevent any potential data races, and convert all users to those new accessors -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmHcgFoACgkQEsHwGGHe VUqXeRAAvcNEfFw6BvXeGfFTxKmOrsRtu2WCkAkjvamyhXMCrjBqqHlygLJFCH5i 2mc6HBohzo4vBFcgi3R5tVkGazqlthY1KUM9Jpk7rUuUzi0phTH7n/MafZOm9Es/ BHYcAAyT/NwZRbCN0geccIzBtbc4xr8kxtec7vkRfGDx8B9/uFN86xm7cKAaL62G UDs0IquDPKEns3A7uKNuvKztILtuZWD1WcSkbOULJzXgLkb+cYKO1Lm9JK9rx8Ds 8tjezrJgOYGLQyyv0i3pWelm3jCZOKUChPslft0opvVUbrNd8piehvOm9CWopHcB QsYOWchnULTE9o4ZAs/1PkxC0LlFEWZH8bOLxBMTDVEY+xvmDuj1PdBUpncgJbOh dunHzsvaWproBSYUXA9nKhZWTVGl+CM8Ks7jXjl3IPynLd6cpYZ/5gyBVWEX7q3e 8htG95NzdPPo7doxMiNSKGSmSm0Np1TJ/i89vsYeGfefsvsq53Fyjhu7dIuTWHmU 2YUe6qHs6dF9x1bkHAAZz6T9Hs4BoGQBcXUnooT9JbzVdv2RfTPsrawdu8dOnzV1 RhwCFdFcll0AIEl0T9fCYzUI/Ga8ZS0roXs5NZ4wl0lwr0BGFwiU8WC1FUdGsZo9 0duaa0Tpv0OWt6rIMMB/E9QsqCDsQ4CMHuQpVVw+GOO5ux9kMms= =v6Xn -----END PGP SIGNATURE----- Merge tag 'core_entry_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull thread_info flag accessor helper updates from Borislav Petkov: "Add a set of thread_info.flags accessors which snapshot it before accesing it in order to prevent any potential data races, and convert all users to those new accessors" * tag 'core_entry_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: powerpc: Snapshot thread flags powerpc: Avoid discarding flags in system_call_exception() openrisc: Snapshot thread flags microblaze: Snapshot thread flags arm64: Snapshot thread flags ARM: Snapshot thread flags alpha: Snapshot thread flags sched: Snapshot thread flags entry: Snapshot thread flags x86: Snapshot thread flags thread_info: Add helpers to snapshot thread flags |
||
Rafael J. Wysocki
|
5561f25beb |
Merge branch 'pm-cpufreq'
Merge cpufreq updates for 5.17-rc1: - Add new P-state driver for AMD processors (Huang Rui). - Fix initialization of min and max frequency QoS requests in the cpufreq core (Rafael Wysocki). - Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada). - Make intel_pstate update cpuinfo.max_freq when notified of HWP capabilities changes and drop a redundant function call from that driver (Rafael Wysocki). - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel, Stephen Boyd, Vladimir Zapolskiy). - Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan). - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz Luba). - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman). * pm-cpufreq: (32 commits) x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment MAINTAINERS: Add AMD P-State driver maintainer entry Documentation: amd-pstate: Add AMD P-State driver introduction cpufreq: amd-pstate: Add AMD P-State performance attributes cpufreq: amd-pstate: Add AMD P-State frequencies attributes cpufreq: amd-pstate: Add boost mode support for AMD P-State cpufreq: amd-pstate: Add trace for AMD P-State module cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution cpufreq: amd-pstate: Add fast switch function for AMD P-State cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors ACPI: CPPC: Add CPPC enable register function ACPI: CPPC: Check present CPUs for determining _CPC is valid ACPI: CPPC: Implement support for SystemIO registers x86/msr: Add AMD CPPC MSR definitions x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag cpufreq: use default_groups in kobj_type cpufreq: mediatek-hw: Fix double devm_remap in hotplug case cpufreq: intel_pstate: Update cpuinfo.max_freq on HWP_CAP changes ... |