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Merge mainline vfio-selftest updates for ongoing v6.19 work.
Signed-off-by: Alex Williamson <alex@shazbot.org>
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* for-next/sysreg:
: arm64 sysreg updates/cleanups
arm64/sysreg: Remove unused define ARM64_FEATURE_FIELD_BITS
KVM: arm64: selftests: Consider all 7 possible levels of cache
KVM: arm64: selftests: Remove ARM64_FEATURE_FIELD_BITS and its last user
arm64/sysreg: Add ICH_VMCR_EL2
arm64/sysreg: Move generation of RES0/RES1/UNKN to function
arm64/sysreg: Support feature-specific fields with 'Prefix' descriptor
arm64/sysreg: Fix checks for incomplete sysreg definitions
arm64/sysreg: Replace TCR_EL1 field macros
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'for-next/efi-preempt', 'for-next/assembler-macro', 'for-next/typos', 'for-next/sme-ptrace-disable', 'for-next/local-tlbi-page-reused', 'for-next/mpam', 'for-next/acpi' and 'for-next/documentation', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf: arm_spe: Add support for filtering on data source
perf: Add perf_event_attr::config4
perf/imx_ddr: Add support for PMU in DB (system interconnects)
perf/imx_ddr: Get and enable optional clks
perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
arch_topology: Provide a stub topology_core_has_smt() for !CONFIG_GENERIC_ARCH_TOPOLOGY
perf/arm-ni: Fix and optimise register offset calculation
perf: arm_pmuv3: Add new Cortex and C1 CPU PMUs
perf: arm_cspmu: fix error handling in arm_cspmu_impl_unregister()
perf/arm-ni: Add NoC S3 support
perf/arm_cspmu: nvidia: Add pmevfiltr2 support
perf/arm_cspmu: nvidia: Add revision id matching
perf/arm_cspmu: Add pmpidr support
perf/arm_cspmu: Add callback to reset filter config
perf: arm_pmuv3: Don't use PMCCNTR_EL0 on SMT cores
* for-next/misc:
: Miscellaneous patches
arm64: atomics: lse: Remove unused parameters from ATOMIC_FETCH_OP_AND macros
arm64: remove duplicate ARCH_HAS_MEM_ENCRYPT
arm64: mm: use untagged address to calculate page index
arm64: mm: make linear mapping permission update more robust for patial range
arm64/mm: Elide TLB flush in certain pte protection transitions
arm64/mm: Rename try_pgd_pgtable_alloc_init_mm
arm64/mm: Allow __create_pgd_mapping() to propagate pgtable_alloc() errors
arm64: add unlikely hint to MTE async fault check in el0_svc_common
arm64: acpi: add newline to deferred APEI warning
arm64: entry: Clean out some indirection
arm64/mm: Ensure PGD_SIZE is aligned to 64 bytes when PA_BITS = 52
arm64/mm: Drop cpu_set_[default|idmap]_tcr_t0sz()
arm64: remove unused ARCH_PFN_OFFSET
arm64: use SOFTIRQ_ON_OWN_STACK for enabling softirq stack
arm64: Remove assertion on CONFIG_VMAP_STACK
* for-next/kselftest:
: arm64 kselftest patches
kselftest/arm64: Align zt-test register dumps
* for-next/efi-preempt:
: arm64: Make EFI calls preemptible
arm64/efi: Call EFI runtime services without disabling preemption
arm64/efi: Move uaccess en/disable out of efi_set_pgd()
arm64/efi: Drop efi_rt_lock spinlock from EFI arch wrapper
arm64/fpsimd: Permit kernel mode NEON with IRQs off
arm64/fpsimd: Don't warn when EFI execution context is preemptible
efi/runtime-wrappers: Keep track of the efi_runtime_lock owner
efi: Add missing static initializer for efi_mm::cpus_allowed_lock
* for-next/assembler-macro:
: arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in headers
arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
* for-next/typos:
: Random typo/spelling fixes
arm64: Fix double word in comments
arm64: Fix typos and spelling errors in comments
* for-next/sme-ptrace-disable:
: Support disabling streaming mode via ptrace on SME only systems
kselftest/arm64: Cover disabling streaming mode without SVE in fp-ptrace
kselftst/arm64: Test NT_ARM_SVE FPSIMD format writes on non-SVE systems
arm64/sme: Support disabling streaming mode via ptrace on SME only systems
* for-next/local-tlbi-page-reused:
: arm64, mm: avoid TLBI broadcast if page reused in write fault
arm64, tlbflush: don't TLBI broadcast if page reused in write fault
mm: add spurious fault fixing support for huge pmd
* for-next/mpam: (34 commits)
: Basic Arm MPAM driver (more to follow)
MAINTAINERS: new entry for MPAM Driver
arm_mpam: Add kunit tests for props_mismatch()
arm_mpam: Add kunit test for bitmap reset
arm_mpam: Add helper to reset saved mbwu state
arm_mpam: Use long MBWU counters if supported
arm_mpam: Probe for long/lwd mbwu counters
arm_mpam: Consider overflow in bandwidth counter state
arm_mpam: Track bandwidth counter state for power management
arm_mpam: Add mpam_msmon_read() to read monitor value
arm_mpam: Add helpers to allocate monitors
arm_mpam: Probe and reset the rest of the features
arm_mpam: Allow configuration to be applied and restored during cpu online
arm_mpam: Use a static key to indicate when mpam is enabled
arm_mpam: Register and enable IRQs
arm_mpam: Extend reset logic to allow devices to be reset any time
arm_mpam: Add a helper to touch an MSC from any CPU
arm_mpam: Reset MSC controls from cpuhp callbacks
arm_mpam: Merge supported features during mpam_enable() into mpam_class
arm_mpam: Probe the hardware features resctrl supports
arm_mpam: Add helpers for managing the locking around the mon_sel registers
...
* for-next/acpi:
: arm64 acpi updates
ACPI: GTDT: Get rid of acpi_arch_timer_mem_init()
* for-next/documentation:
: arm64 Documentation updates
Documentation/arm64: Fix the typo of register names
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal control changes for 6.19-rc1 from Daniel Lezcano:
"- Document the RZ/V2H TSU DT bindings (Ovidiu Panait)
- Document the Kaanapali Temperature Sensor (Manaf Meethalavalappu
Pallikunhi)
- Document R-Car Gen4 and RZ/G2 support in driver comment (Marek Vasut)
- Convert to DEFINE_SIMPLE_DEV_PM_OPS in the R-Car [Gen3] (Geert
Uytterhoeven)
- Fix format string bug in thermal-engine (Malaya Kumar Rout)
- Make ipq5018 tsens standalone compatible (George Moussalem)
- Add the QCS8300 compatible for the QCom Tsens (Gaurav Kohli)
- Add the support for the NXP i.MX91 thermal module, including the DT
bindings (Pengfei Li)
* tag 'thermal-v6.19-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal/drivers/imx91: Add support for i.MX91 thermal monitoring unit
dt-bindings: thermal: fsl,imx91-tmu: add bindings for NXP i.MX91 thermal module
dt-bindings: thermal: tsens: Add QCS8300 compatible
dt-bindings: thermal: qcom-tsens: make ipq5018 tsens standalone compatible
tools/thermal/thermal-engine: Fix format string bug in thermal-engine
thermal/drivers/rcar_gen3: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
thermal/drivers/rcar: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
thermal/drivers/rcar_gen3: Document R-Car Gen4 and RZ/G2 support in driver comment
dt-bindings: thermal: qcom-tsens: document the Kaanapali Temperature Sensor
dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2H TSU
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'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next
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With time counter test, it is to verify that time count starts from 0
and always grows up then.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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This test case setup one-shot timer and execute idle instruction
immediately to indicate giving up CPU, hypervisor will emulate SW
hrtimer and wakeup vCPU when SW hrtimer is fired.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add timer test case based on common arch_timer code, timer interrupt
with one-shot and period mode is tested.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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traffic
Introduce the capability to send TCP traffic over IPv6 to
nft_flowtable netfilter selftest.
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Introduce specific selftest for IPIP flowtable SW acceleration in
nft_flowtable.sh
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Conflicts:
net/xdp/xsk.c
0ebc27a4c67d ("xsk: avoid data corruption on cq descriptor number")
8da7bea7db69 ("xsk: add indirect call for xsk_destruct_skb")
30ed05adca4a ("xsk: use a smaller new lock for shared pool case")
https://lore.kernel.org/20251127105450.4a1665ec@canb.auug.org.au
https://lore.kernel.org/eb4eee14-7e24-4d1b-b312-e9ea738fefee@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In test_clidr() if an empty cache level is not found then the TEST_ASSERT
will not fire. Fix this by considering all 7 possible levels when iterating
through the hierarchy. Found by inspection.
Signed-off-by: Ben Horgan <ben.horgan@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Oliver Upton <oupton@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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ARM64_FEATURE_FIELD_BITS is set to 4 but not all ID register fields are 4
bits. See for instance ID_AA64SMFR0_EL1. The last user of this define,
ARM64_FEATURE_FIELD_BITS, is the set_id_regs selftest. Its logic assumes
the fields aren't a single bits; assert that's the case and stop using the
define. As there are no more users, ARM64_FEATURE_FIELD_BITS is removed
from the arm64 tools sysreg.h header. A separate commit removes this from
the kernel version of the header.
Signed-off-by: Ben Horgan <ben.horgan@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Oliver Upton <oupton@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The unix_connreset.c test included <stdlib.h>, but no symbol from that
header is used. This causes a fatal build error under certain
linux-next configurations where stdlib.h is not available.
Remove the unused include to fix the build.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202511221800.hcgCKvVa-lkp@intel.com/
Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
Link: https://patch.msgid.link/20251125113648.25903-1-adelodunolaoluwa@yahoo.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Building objtool with disassembly support can fail when including
the bdf.h file:
In file included from tools/objtool/include/objtool/arch.h:108,
from check.c:14:
/usr/include/bfd.h:35:2: error: #error config.h must be included before this header
35 | #error config.h must be included before this header
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This check is present in the bfd.h file generated from the binutils
source code, but it is not necessarily present in the bfd.h file
provided in a binutil package (for example, it is not present in
the binutil RPM).
The solution to this issue is to define the PACKAGE macro before
including bfd.h. This is the solution suggested by the binutil
developer in bug 14243, and it is used by other kernel tools
which also use bfd.h (perf and bpf).
Fixes: 59953303827ec ("objtool: Disassemble code with libopcodes instead of running objdump")
Closes: https://lore.kernel.org/all/3fa261fd-3b46-4cbe-b48d-7503aabc96cb@oracle.com/
Reported-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=14243
Link: https://patch.msgid.link/20251126134519.1760889-1-alexandre.chartre@oracle.com
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Add interrupt and exception handler register interface. When exception
happens, execute registered exception handler if exists, else report an
error.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add some basic function interfaces such as CSR register access, local
irq enable or disable APIs.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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When system returns from exception with ertn instruction, PC comes from
LOONGARCH_CSR_ERA, and CSR.CRMD comes LOONGARCH_CSR_PRMD.
Here save CSR register CSR.ERA and CSR.PRMD into stack, and then restore
them from stack. So it can be modified by exception handlers in future.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add a test framework for YAML Netlink (YNL) tools, covering both CLI and
ethtool functionality. The framework includes:
1) cli: family listing, netdev, ethtool, rt-* families, and nlctrl
operations
2) ethtool: device info, statistics, ring/coalesce/pause parameters, and
feature gettings
The current YNL syntax is a bit obscure, and end users may not always know
how to use it. This test framework provides usage examples and also serves
as a regression test to catch potential breakages caused by future changes.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20251124022055.33389-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The --send_omit_free flag is needed for TCP zero copy tests, to ensure
that packetdrill doesn't free the send() buffer after the send() call.
Fixes: 1e42f73fd3c2 ("selftests/net: packetdrill: import tcp/zerocopy")
Closes: https://lore.kernel.org/netdev/20251124071831.4cbbf412@kernel.org/
Suggested-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251125234029.1320984-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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char variable in 'so_txtime.c' & 'txtimestamp.c' were left uninitilized
when switch default case taken. which raises following warning.
txtimestamp.c:240:2: warning: variable 'tsname' is used uninitialized
whenever switch default is taken [-Wsometimes-uninitialized]
so_txtime.c:210:3: warning: variable 'reason' is used uninitialized
whenever switch default is taken [-Wsometimes-uninitialized]
initializing these variables to NULL to fix this.
Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
Link: https://patch.msgid.link/20251125165302.20079-1-ankitkhushwaha.linux@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"8 hotfixes. 4 are cc:stable, 7 are against mm/.
All are singletons - please see the respective changelogs for details"
* tag 'mm-hotfixes-stable-2025-11-26-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/filemap: fix logic around SIGBUS in filemap_map_pages()
mm/huge_memory: fix NULL pointer deference when splitting folio
MAINTAINERS: add test_kho to KHO's entry
mailmap: add entry for Sam Protsenko
selftests/mm: fix division-by-zero in uffd-unit-tests
mm/mmap_lock: reset maple state on lock_vma_under_rcu() retry
mm/memfd: fix information leak in hugetlb folios
mm: swap: remove duplicate nr_swap_pages decrement in get_swap_page_of_type()
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Jason Gunthorpe says:
====================
This series is the start of adding full DMABUF support to
iommufd. Currently it is limited to only work with VFIO's DMABUF exporter.
It sits on top of Leon's series to add a DMABUF exporter to VFIO:
https://lore.kernel.org/all/20251120-dmabuf-vfio-v9-0-d7f71607f371@nvidia.com/
The existing IOMMU_IOAS_MAP_FILE is enhanced to detect DMABUF fd's, but
otherwise works the same as it does today for a memfd. The user can select
a slice of the FD to map into the ioas and if the underliyng alignment
requirements are met it will be placed in the iommu_domain.
Though limited, it is enough to allow a VMM like QEMU to connect MMIO BAR
memory from VFIO to an iommu_domain controlled by iommufd. This is used
for PCI Peer to Peer support in VMs, and is the last feature that the VFIO
type 1 container has that iommufd couldn't do.
The VFIO type1 version extracts raw PFNs from VMAs, which has no lifetime
control and is a use-after-free security problem.
Instead iommufd relies on revokable DMABUFs. Whenever VFIO thinks there
should be no access to the MMIO it can shoot down the mapping in iommufd
which will unmap it from the iommu_domain. There is no automatic remap,
this is a safety protocol so the kernel doesn't get stuck. Userspace is
expected to know it is doing something that will revoke the dmabuf and
map/unmap it around the activity. Eg when QEMU goes to issue FLR it should
do the map/unmap to iommufd.
Since DMABUF is missing some key general features for this use case it
relies on a "private interconnect" between VFIO and iommufd via the
vfio_pci_dma_buf_iommufd_map() call.
The call confirms the DMABUF has revoke semantics and delivers a phys_addr
for the memory suitable for use with iommu_map().
Medium term there is a desire to expand the supported DMABUFs to include
GPU drivers to support DPDK/SPDK type use cases so future series will work
to add a general concept of revoke and a general negotiation of
interconnect to remove vfio_pci_dma_buf_iommufd_map().
I also plan another series to modify iommufd's vfio_compat to
transparently pull a dmabuf out of a VFIO VMA to emulate more of the uAPI
of type1.
The latest series for interconnect negotation to exchange a phys_addr is:
https://lore.kernel.org/r/20251027044712.1676175-1-vivek.kasireddy@intel.com
And the discussion for design of revoke is here:
https://lore.kernel.org/dri-devel/20250114173103.GE5556@nvidia.com/
====================
Based on a shared branch with vfio.
* iommufd_dmabuf:
iommufd/selftest: Add some tests for the dmabuf flow
iommufd: Accept a DMABUF through IOMMU_IOAS_MAP_FILE
iommufd: Have iopt_map_file_pages convert the fd to a file
iommufd: Have pfn_reader process DMABUF iopt_pages
iommufd: Allow MMIO pages in a batch
iommufd: Allow a DMABUF to be revoked
iommufd: Do not map/unmap revoked DMABUFs
iommufd: Add DMABUF to iopt_pages
vfio/pci: Add vfio_pci_dma_buf_iommufd_map()
vfio/nvgrace: Support get_dmabuf_phys
vfio/pci: Add dma-buf export support for MMIO regions
vfio/pci: Enable peer-to-peer DMA transactions by default
vfio/pci: Share the core device pointer while invoking feature functions
vfio: Export vfio device get and put registration helpers
dma-buf: provide phys_vec to scatter-gather mapping routine
PCI/P2PDMA: Document DMABUF model
PCI/P2PDMA: Provide an access to pci_p2pdma_map_type() function
PCI/P2PDMA: Refactor to separate core P2P functionality from memory allocation
PCI/P2PDMA: Simplify bus address mapping API
PCI/P2PDMA: Separate the mmap() support from the core logic
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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KVM selftests changes for 6.19:
- Fix a math goof in mmu_stress_test when running on a single-CPU system/VM.
- Forcefully override ARCH from x86_64 to x86 to play nice with specifying
ARCH=x86_64 on the command line.
- Extend a bunch of nested VMX to validate nested SVM as well.
- Add support for LA57 in the core VM_MODE_xxx macro, and add a test to
verify KVM can save/restore nested VMX state when L1 is using 5-level
paging, but L2 is not.
- Clean up the guest paging code in anticipation of sharing the core logic for
nested EPT and nested NPT.
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KVM guest_memfd changes for 6.19:
- Add NUMA mempolicy support for guest_memfd, and clean up a variety of
rough edges in guest_memfd along the way.
- Define a CLASS to automatically handle get+put when grabbing a guest_memfd
from a memslot to make it harder to leak references.
- Enhance KVM selftests to make it easer to develop and debug selftests like
those added for guest_memfd NUMA support, e.g. where test and/or KVM bugs
often result in hard-to-debug SIGBUS errors.
- Misc cleanups.
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so_peek_off.c is reported to be flaky on NIPA:
# # so_peek_off.c:149:two_chunks_overlap_blocking:Expected -1 (-1) != bytes (-1)
# # two_chunks_overlap_blocking: Test terminated by assertion
# # FAIL so_peek_off.stream.two_chunks_overlap_blocking
The test fork()s a child process to send() data after 1ms to
wake up the parent process being blocked (up to 3ms) on recv().
But, from the log, the parent woke up after 3ms timeout, so it
could be too short when the host is overloaded.
Let's extend it to 5s.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20251124070722.1e828c53@kernel.org/
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124212805.486235-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Somehow AF_UNIX tests have reused ../.gitignore,
but now NIPA warns about it.
Let's create .gitignore under af_unix/.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124212805.486235-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now sk->sk_timer is no longer used by TCP keepalive, we can use
its storage for TCP and MPTCP retransmit timers for better
cache locality.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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sk->sk_timer has been used for TCP keepalives.
Keepalive timers are not in fast path, we want to use sk->sk_timer
storage for retransmit timers, for better cache locality.
Create icsk->icsk_keepalive_timer and change keepalive
code to no longer use sk->sk_timer.
Added space is reclaimed in the following patch.
This includes changes to MPTCP, which was also using sk_timer.
Alias icsk->mptcp_tout_timer and icsk->icsk_keepalive_timer
for inet_sk_diag_fill() sake.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a comment on regeneration to the generated files.
The comment is placed after the YNL-GEN line[1], as to not interfere
with ynl-regen.sh's detection logic.
[1] and after the optional YNL-ARG line.
Link: https://lore.kernel.org/r/aR5m174O7pklKrMR@zx2c4.com/
Suggested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251120174429.390574-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds a new CLI argument for overriding the default
function prefix, as used for naming the doit/dumpit functions
in the generated kernel code.
When not specified the default "$(FAMILY)-nl" is used.
This can also be specified persistently in generated files:
/* YNL-ARG --function-prefix wg */
In the above example it causes the following changes:
wireguard_nl_get_device_dumpit() -> wg_get_device_dumpit()
wireguard_nl_get_device_doit() -> wg_get_device_doit()
The variable name fn_prefix, was chosen as it relates to op_prefix
which is used to prefix the UAPI commands enum entries.
Link: https://lore.kernel.org/r/aRvWzC8qz3iXDAb3@zx2c4.com/
Suggested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Link: https://patch.msgid.link/20251120174429.390574-2-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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syzkaller reported a lockdep lock order inversion warning[1] due to
commit 687aa0c5581b ("vsock: Fix transport_* TOCTOU"). This was fixed in
commit f7c877e75352 ("vsock: fix lock inversion in
vsock_assign_transport()").
Redo syzkaller's repro by piggybacking on a somewhat related test
implemented in commit 3a764d93385c ("vsock/test: Add test for null ptr
deref when transport changes").
[1]: https://lore.kernel.org/netdev/68f6cdb0.a70a0220.205af.0039.GAE@google.com/
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20251123-vsock_test-linger-lockdep-warn-v1-1-4b1edf9d8cdc@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Allow users to configure the critical section delay for both task/normal
and NMI contexts, and set to 20ms and 10ms as before by default.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20251125020749.2421610-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add statistics per-CPU broken down by context and various timing windows
for the time taken to acquire an rqspinlock. Cases where all
acquisitions fit into the 10ms window are skipped from printing,
otherwise the full breakdown is displayed when printing the summary.
This allows capturing precisely the number of times outlier attempts
happened for a given lock in a given context.
A critical detail is that time is captured regardless of success or
failure, which is important to capture events for failed but long
waiting timeout attempts.
Output:
[ 64.279459] rqspinlock acquisition latency histogram (ms):
[ 64.279472] cpu1: total 528426 (normal 526559, nmi 1867)
[ 64.279477] 0-1ms: total 524697 (normal 524697, nmi 0)
[ 64.279480] 2-2ms: total 3652 (normal 1811, nmi 1841)
[ 64.279482] 3-3ms: total 66 (normal 47, nmi 19)
[ 64.279485] 4-4ms: total 2 (normal 1, nmi 1)
[ 64.279487] 5-5ms: total 1 (normal 1, nmi 0)
[ 64.279489] 6-6ms: total 1 (normal 0, nmi 1)
[ 64.279490] 101-150ms: total 1 (normal 0, nmi 1)
[ 64.279492] >= 251ms: total 6 (normal 2, nmi 4)
...
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20251125020749.2421610-3-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Only require 2 CPUs for AA, 3 for ABBA, 4 for ABBCCA, which is
calculated nicely by adding to the mode enum. Enables running single CPU
AA tests.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20251125020749.2421610-2-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Fix up some of missing or incorrect @param descriptions for libbpf public APIs
in libbpf.h.
Signed-off-by: Jianyun Gao <jianyungao89@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251118033025.11804-1-jianyungao89@gmail.com
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The bench test "trig-kernel-count" can be used as a baseline comparison
for fentry and other benchmarks, and the calling to bpf_get_numa_node_id()
should be considered as composition of the baseline. So, let's call it in
trigger_count(). Meanwhile, rename trigger_count() to
trigger_kernel_count() to make it easier understand.
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251116014242.151110-1-dongml2@chinatelecom.cn
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull a cpupower utility update for 6.19-rc1 from Shuah Khan:
"Adds support for building libcpupower statically when STATIC=true is
specified during build."
* tag 'linux-cpupower-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
tools/power/cpupower: Support building libcpupower statically
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Basic tests of establishing a dmabuf and revoking it. The selftest kernel
side provides a basic small dmabuf for this testing.
Link: https://patch.msgid.link/r/9-v2-b2c110338e3f+5c2-iommufd_dmabuf_jgg@nvidia.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The error message in the daemon() failure path uses %p format specifier
without providing a corresponding pointer argument, resulting in undefined
behavior and printing garbage values.
Replace %p with %m to properly print the errno error message, which is
the intended behavior when daemon() fails.
This fix ensures proper error reporting when daemonization fails.
Signed-off-by: Malaya Kumar Rout <mrout@redhat.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://patch.msgid.link/20251124104401.374856-1-mrout@redhat.com
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netdev CI reserves SKIP in selftests for cases which can't be executed
due to setup issues, like missing or old commands. Tests which are
expected to fail must use XFAIL.
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251123021601.158709-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This commit ensures that the required log level is set at the start of
the test iteration.
Part of the cleanup performed at the end of each test iteration resets
the log level (do_cleanup in lib_netcons.sh) to the values defined at the
time test script started. This may cause further test iterations to fail
if the default values are not sufficient.
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20251121-netcons-basic-loglevel-v1-1-577f8586159c@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Increase the receiver timeout. When running between machines
in different geographic regions the test needs more than
a second to SSH across and send the frames.
The bkg() command that runs the receiver defaults to 5 sec timeout,
so using 4 sec sounds like a reasonable value for the receiver itself.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251121040259.3647749-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace the simple modulo math with the real indirection table
read from the device. This makes the tests pass for mlx5 and
bnxt NICs.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251121040259.3647749-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that we have YNL support for RSS accessing the RSS info from
C is very easy. Instead of passing the RSS key from Python do it
directly in the C code.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251121040259.3647749-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Make sure that the NIC under test is configured for pure Toeplitz
hashing, and no input key transform (no symmetric hashing).
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251121040259.3647749-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Looks like the liburing is not updated by distros very aggressively.
Presumably because a lot of packages depend on it. I just updated
to Fedora 43 and it's still on liburing 2.9. The test is 9mo old,
at this stage I think this warrants handling the build failure
more gracefully.
Detect if iouring is recent enough and if not print a warning
and exclude the C prog from build. The Python test will just
fail since the binary won't exist. But it removes the major
annoyance of having to update liburing from sources when
developing other tests.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251121040259.3647749-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit 31158ad02ddb ("rqspinlock: Add deadlock detection
and recovery") the updated path on re-entrancy now reports deadlock
via -EDEADLK instead of the previous -EBUSY.
Also, the way reentrancy was exercised (via fentry/lookup_elem_raw)
has been fragile because lookup_elem_raw may be inlined
(find_kernel_btf_id() will return -ESRCH).
To fix this fentry is attached to bpf_obj_free_fields() instead of
lookup_elem_raw() and:
- The htab map is made to use a BTF-described struct val with a
struct bpf_timer so that check_and_free_fields() reliably calls
bpf_obj_free_fields() on element replacement.
- The selftest is updated to do two updates to the same key (insert +
replace) in prog_test.
- The selftest is updated to align with expected errno with the
kernel’s current behavior.
Signed-off-by: Saket Kumar Bhaskar <skb99@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Link: https://lore.kernel.org/r/20251117060752.129648-1-skb99@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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vm_flags_reset() is not available in the userland VMA tests, so add a stub
which const-casts vma->vm_flags and avoids the upcoming removal of the
vma->__vm_flags field.
Link: https://lkml.kernel.org/r/4aff8bf7-d367-4ba3-90ad-13eef7a063fa@lucifer.local
Fixes: c5c67c1de357 ("tools/testing/vma: eliminate dependency on vma->__vm_flags")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "mm: Add soft-dirty and uffd-wp support for RISC-V", v15.
This patchset adds support for Svrsw60t59b [1] extension which is ratified
now, also add soft dirty and userfaultfd write protect tracking for
RISC-V.
The patches 1 and 2 add macros to allow architectures to define their own
checks if the soft-dirty / uffd_wp PTE bits are available, in other words
for RISC-V, the Svrsw60t59b extension is supported on which device the
kernel is running. Also patch1-2 are removing "ifdef
CONFIG_MEM_SOFT_DIRTY" "ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP" and "ifdef
CONFIG_PTE_MARKER_UFFD_WP" in favor of checks which if not overridden by
the architecture, no change in behavior is expected.
This patchset has been tested with kselftest mm suite in which soft-dirty,
madv_populate, test_unmerge_uffd_wp, and uffd-unit-tests run and pass, and
no regressions are observed in any of the other tests.
This patch (of 6):
Some platforms can customize the PTE PMD entry soft-dirty bit making it
unavailable even if the architecture provides the resource.
Add an API which architectures can define their specific implementations
to detect if soft-dirty bit is available on which device the kernel is
running.
This patch is removing "ifdef CONFIG_MEM_SOFT_DIRTY" in favor of
pgtable_supports_soft_dirty() checks that defaults to
IS_ENABLED(CONFIG_MEM_SOFT_DIRTY), if not overridden by the architecture,
no change in behavior is expected.
We make sure to never set VM_SOFTDIRTY if !pgtable_supports_soft_dirty(),
so we will never run into VM_SOFTDIRTY checks.
[lorenzo.stoakes@oracle.com: fix VMA selftests]
Link: https://lkml.kernel.org/r/dac6ddfe-773a-43d5-8f69-021b9ca4d24b@lucifer.local
Link: https://lkml.kernel.org/r/20251113072806.795029-1-zhangchunyan@iscas.ac.cn
Link: https://lkml.kernel.org/r/20251113072806.795029-2-zhangchunyan@iscas.ac.cn
Link: https://github.com/riscv-non-isa/riscv-iommu/pull/543 [1]
Signed-off-by: Chunyan Zhang <zhangchunyan@iscas.ac.cn>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Conor Dooley <conor@kernel.org>
Cc: Deepak Gupta <debug@rivosinc.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andrew Jones <ajones@ventanamicro.com>
Cc: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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