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2023-04-05selftests/mm: set overcommit_policy as OVERCOMMIT_ALWAYSGravatar Chaitanya S Prakash 1-0/+8
The kernel's default behaviour is to obstruct the allocation of high virtual address as it handles memory overcommit in a heuristic manner. Setting the parameter as OVERCOMMIT_ALWAYS, ensures kernel isn't susceptible to the availability of a platform's physical memory when denying a memory allocation request. Link: https://lkml.kernel.org/r/20230323060121.1175830-4-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-05selftests/mm: change NR_CHUNKS_HIGH for aarch64Gravatar Chaitanya S Prakash 1-4/+10
Although there is a provision for 52 bit VA on arm64 platform, it remains unutilised and higher addresses are not allocated. In order to accommodate 4PB [2^52] virtual address space where supported, NR_CHUNKS_HIGH is changed accordingly. Array holding addresses is changed from static allocation to dynamic allocation to accommodate its voluminous nature which otherwise might overflow the stack. Link: https://lkml.kernel.org/r/20230323060121.1175830-3-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-05selftests/mm: change MAP_CHUNK_SIZEGravatar Chaitanya S Prakash 1-3/+7
Patch series "selftests: Fix virtual address range for arm64", v2. When the virtual address range selftest is run on arm64 and x86 platforms, it is observed that both the low and high VA range iterations are skipped when the MAP_CHUNK_SIZE is set to 16GB. The MAP_CHUNK_SIZE is changed to 1GB to resolve this issue, following which support for arm64 platform is added by changing the NR_CHUNKS_HIGH for aarch64 to accommodate up to 4PB of virtual address space allocation requests. Dynamic memory allocation of array holding addresses is introduced to prevent overflow of the stack. Finally, the overcommit_policy is set as OVERCOMMIT_ALWAYS to prevent the kernel from denying a memory allocation request based on a platform's physical memory availability. This patch (of 3): mmap() fails to allocate 16GB virtual space chunk, skipping both low and high VA range iterations. Hence, reduce MAP_CHUNK_SIZE to 1GB and update relevant macros as required. Link: https://lkml.kernel.org/r/20230323060121.1175830-1-chaitanyas.prakash@arm.com Link: https://lkml.kernel.org/r/20230323060121.1175830-2-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-05mm: userfaultfd: add UFFDIO_CONTINUE_MODE_WP to install WP PTEsGravatar Axel Rasmussen 1-0/+4
UFFDIO_COPY already has UFFDIO_COPY_MODE_WP, so when installing a new PTE to resolve a missing fault, one can install a write-protected one. This is useful when using UFFDIO_REGISTER_MODE_{MISSING,WP} in combination. This was motivated by testing HugeTLB HGM [1], and in particular its interaction with userfaultfd features. Existing userfaultfd code supports using WP and MINOR modes together (i.e. you can register an area with both enabled), but without this CONTINUE flag the combination is in practice unusable. So, add an analogous UFFDIO_CONTINUE_MODE_WP, which does the same thing as UFFDIO_COPY_MODE_WP, but for *minor* faults. Update the selftest to do some very basic exercising of the new flag. Update Documentation/ to describe how these flags are used (neither the COPY nor the new CONTINUE versions of this mode flag were described there before). [1]: https://patchwork.kernel.org/project/linux-mm/cover/20230218002819.1486479-1-jthoughton@google.com/ Link: https://lkml.kernel.org/r/20230314221250.682452-5-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Acked-by: Peter Xu <peterx@redhat.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nadav Amit <namit@vmware.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-05mm, treewide: redefine MAX_ORDER sanelyGravatar Kirill A. Shutemov 1-3/+3
MAX_ORDER currently defined as number of orders page allocator supports: user can ask buddy allocator for page order between 0 and MAX_ORDER-1. This definition is counter-intuitive and lead to number of bugs all over the kernel. Change the definition of MAX_ORDER to be inclusive: the range of orders user can ask from buddy allocator is 0..MAX_ORDER now. [kirill@shutemov.name: fix min() warning] Link: https://lkml.kernel.org/r/20230315153800.32wib3n5rickolvh@box [akpm@linux-foundation.org: fix another min_t warning] [kirill@shutemov.name: fixups per Zi Yan] Link: https://lkml.kernel.org/r/20230316232144.b7ic4cif4kjiabws@box.shutemov.name [akpm@linux-foundation.org: fix underlining in docs] Link: https://lore.kernel.org/oe-kbuild-all/202303191025.VRCTk6mP-lkp@intel.com/ Link: https://lkml.kernel.org/r/20230315113133.11326-11-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-04-05selftests/mm: smoke test UFFD_FEATURE_WP_UNPOPULATEDGravatar Peter Xu 1-2/+43
Enable it by default on the stress test, and add some smoke tests for the pte markers on anonymous. Link: https://lkml.kernel.org/r/20230309223711.823547-3-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Paul Gofman <pgofman@codeweavers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-03-28selftests/mm: fix split huge page testsGravatar Zi Yan 1-3/+3
Fix two inputs to check_anon_huge() and one if condition, so the tests work as expected. Link: https://lkml.kernel.org/r/20230306160907.16804-1-zi.yan@sent.com Fixes: c07c343cda8e ("selftests/vm: dedup THP helpers") Signed-off-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Zach O'Keefe <zokeefe@google.com> Tested-by: Zach O'Keefe <zokeefe@google.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-03-28selftests: cgroup: add 'malloc' failures checks in test_memcontrolGravatar Ivan Orlov 1-0/+15
There are several 'malloc' calls in test_memcontrol, which can be unsuccessful. This patch will add 'malloc' failures checking to give more details about test's fail reasons and avoid possible undefined behavior during the future null dereference (like the one in alloc_anon_50M_check_swap function). Link: https://lkml.kernel.org/r/20230226131634.34366-1-ivan.orlov0322@gmail.com Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Acked-by: Shakeel Butt <shakeelb@google.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Zefan Li <lizefan.x@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-03-26Merge tag 'x86_urgent_for_v6.3_rc4' of ↵Gravatar Linus Torvalds 1-3/+105
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add a AMX ptrace self test - Prevent a false-positive warning when retrieving the (invalid) address of dynamic FPU features in their init state which are not saved in init_fpstate at all - Randomize per-CPU entry areas only when KASLR is enabled * tag 'x86_urgent_for_v6.3_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86/amx: Add a ptrace test x86/fpu/xstate: Prevent false-positive warning in __copy_xstate_uabi_buf() x86/mm: Do not shuffle CPU entry areas without KASLR
2023-03-24Merge tag 'mm-hotfixes-stable-2023-03-24-17-09' of ↵Gravatar Linus Torvalds 1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "21 hotfixes, 8 of which are cc:stable. 11 are for MM, the remainder are for other subsystems" * tag 'mm-hotfixes-stable-2023-03-24-17-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits) mm: mmap: remove newline at the end of the trace mailmap: add entries for Richard Leitner kcsan: avoid passing -g for test kfence: avoid passing -g for test mm: kfence: fix using kfence_metadata without initialization in show_object() lib: dhry: fix unstable smp_processor_id(_) usage mailmap: add entry for Enric Balletbo i Serra mailmap: map Sai Prakash Ranjan's old address to his current one mailmap: map Rajendra Nayak's old address to his current one Revert "kasan: drop skip_kasan_poison variable in free_pages_prepare" mailmap: add entry for Tobias Klauser kasan, powerpc: don't rename memintrinsics if compiler adds prefixes mm/ksm: fix race with VMA iteration and mm_struct teardown kselftest: vm: fix unused variable warning mm: fix error handling for map_deny_write_exec mm: deduplicate error handling for map_deny_write_exec checksyscalls: ignore fstat to silence build warning on LoongArch nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy() test_maple_tree: add more testing for mas_empty_area() maple_tree: fix mas_skip_node() end slot detection ...
2023-03-24Merge tag 'net-6.3-rc4' of ↵Gravatar Linus Torvalds 14-146/+204
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from bpf, wifi and bluetooth. Current release - regressions: - wifi: mt76: mt7915: add back 160MHz channel width support for MT7915 - libbpf: revert poisoning of strlcpy, it broke uClibc-ng Current release - new code bugs: - bpf: improve the coverage of the "allow reads from uninit stack" feature to fix verification complexity problems - eth: am65-cpts: reset PPS genf adj settings on enable Previous releases - regressions: - wifi: mac80211: serialize ieee80211_handle_wake_tx_queue() - wifi: mt76: do not run mt76_unregister_device() on unregistered hw, fix null-deref - Bluetooth: btqcomsmd: fix command timeout after setting BD address - eth: igb: revert rtnl_lock() that causes a deadlock - dsa: mscc: ocelot: fix device specific statistics Previous releases - always broken: - xsk: add missing overflow check in xdp_umem_reg() - wifi: mac80211: - fix QoS on mesh interfaces - fix mesh path discovery based on unicast packets - Bluetooth: - ISO: fix timestamped HCI ISO data packet parsing - remove "Power-on" check from Mesh feature - usbnet: more fixes to drivers trusting packet length - wifi: iwlwifi: mvm: fix mvmtxq->stopped handling - Bluetooth: btintel: iterate only bluetooth device ACPI entries - eth: iavf: fix inverted Rx hash condition leading to disabled hash - eth: igc: fix the validation logic for taprio's gate list - dsa: tag_brcm: legacy: fix daisy-chained switches Misc: - bpf: adjust insufficient default bpf_jit_limit to account for growth of BPF use over the last 5 years - xdp: bpf_xdp_metadata() use EOPNOTSUPP as unique errno indicating no driver support" * tag 'net-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits) Bluetooth: HCI: Fix global-out-of-bounds Bluetooth: mgmt: Fix MGMT add advmon with RSSI command Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work Bluetooth: L2CAP: Fix responding with wrong PDU type Bluetooth: btqcomsmd: Fix command timeout after setting BD address Bluetooth: btinel: Check ACPI handle for NULL before accessing net: mdio: thunder: Add missing fwnode_handle_put() net: dsa: mt7530: move setting ssc_delta to PHY_INTERFACE_MODE_TRGMII case net: dsa: mt7530: move lowering TRGMII driving to mt7530_setup() net: dsa: mt7530: move enabling disabling core clock to mt7530_pll_setup() net: asix: fix modprobe "sysfs: cannot create duplicate filename" gve: Cache link_speed value from device tools: ynl: Fix genlmsg header encoding formats net: enetc: fix aggregate RMON counters not showing the ranges Bluetooth: Remove "Power-on" check from Mesh feature Bluetooth: Fix race condition in hci_cmd_sync_clear Bluetooth: btintel: Iterate only bluetooth device ACPI entries Bluetooth: ISO: fix timestamped HCI ISO data packet parsing Bluetooth: btusb: Remove detection of ISO packets over bulk Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet ...
2023-03-23kselftest: vm: fix unused variable warningGravatar Peter Xu 1-2/+1
Remove unused variable from the MDWE test. [joey.gouly@arm.com: add commit message] Link: https://lkml.kernel.org/r/20230308190423.46491-4-joey.gouly@arm.com Fixes: 4cf1fe34fd18 ("kselftest: vm: add tests for memory-deny-write-execute") Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Joey Gouly <joey.gouly@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Alexey Izbyshev <izbyshev@ispras.ru> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: nd <nd@arm.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-03-23Merge tag 'for-netdev' of ↵Gravatar Jakub Kicinski 13-143/+201
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2023-03-23 We've added 8 non-merge commits during the last 13 day(s) which contain a total of 21 files changed, 238 insertions(+), 161 deletions(-). The main changes are: 1) Fix verification issues in some BPF programs due to their stack usage patterns, from Eduard Zingerman. 2) Fix to add missing overflow checks in xdp_umem_reg and return an error in such case, from Kal Conley. 3) Fix and undo poisoning of strlcpy in libbpf given it broke builds for libcs which provided the former like uClibc-ng, from Jesus Sanchez-Palencia. 4) Fix insufficient bpf_jit_limit default to avoid users running into hard to debug seccomp BPF errors, from Daniel Borkmann. 5) Fix driver return code when they don't support a bpf_xdp_metadata kfunc to make it unambiguous from other errors, from Jesper Dangaard Brouer. 6) Two BPF selftest fixes to address compilation errors from recent changes in kernel structures, from Alexei Starovoitov. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: xdp: bpf_xdp_metadata use EOPNOTSUPP for no driver support bpf: Adjust insufficient default bpf_jit_limit xsk: Add missing overflow check in xdp_umem_reg selftests/bpf: Fix progs/test_deny_namespace.c issues. selftests/bpf: Fix progs/find_vma_fail1.c build error. libbpf: Revert poisoning of strlcpy selftests/bpf: Tests for uninitialized stack reads bpf: Allow reads from uninit stack ==================== Link: https://lore.kernel.org/r/20230323225221.6082-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-22tools: ynl: Fix genlmsg header encoding formatsGravatar Donald Hunter 1-3/+3
The pack strings use 'b' signed char for cmd and version but struct genlmsghdr defines them as unsigned char. Use 'B' instead. Fixes: 4e4480e89c47 ("tools: ynl: move the cli and netlink code around") Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230319193803.97453-1-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-22selftests/x86/amx: Add a ptrace testGravatar Chang S. Bae 1-3/+105
Include a test case to validate the XTILEDATA injection to the target. Also, it ensures the kernel's ability to copy states between different XSAVE formats. Refactor the memcmp() code to be usable for the state validation. Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/20230227210504.18520-3-chang.seok.bae%40intel.com
2023-03-22bootconfig: Fix testcase to increase max nodeGravatar Masami Hiramatsu (Google) 1-4/+8
Since commit 6c40624930c5 ("bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC support") increased the max number of bootconfig node to 8192, the bootconfig testcase of the max number of nodes fails. To fix this issue, we can not simply increase the number in the test script because the test bootconfig file becomes too big (>32KB). To fix that, we can use a combination of three alphabets (26^3 = 17576). But with that, we can not express the 8193 (just one exceed from the limitation) because it also exceeds the max size of bootconfig. So, the first 26 nodes will just use one alphabet. With this fix, test-bootconfig.sh passes all tests. Link: https://lore.kernel.org/all/167888844790.791176.670805252426835131.stgit@devnote2/ Reported-by: Heinz Wiesinger <pprkut@slackware.com> Link: https://lore.kernel.org/all/2463802.XAFRqVoOGU@amaterasu.liwjatan.org Fixes: 6c40624930c5 ("bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC support") Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-17Merge tag 'net-6.3-rc3' of ↵Gravatar Linus Torvalds 11-23/+384
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter, wifi and ipsec. A little more changes than usual, but it's pretty normal for us that the rc3/rc4 PRs are oversized as people start testing in earnest. Possibly an extra boost from people deploying the 6.1 LTS but that's more of an unscientific hunch. Current release - regressions: - phy: mscc: fix deadlock in phy_ethtool_{get,set}_wol() - virtio: vsock: don't use skbuff state to account credit - virtio: vsock: don't drop skbuff on copy failure - virtio_net: fix page_to_skb() miscalculating the memory size Current release - new code bugs: - eth: correct xdp_features after device reconfig - wifi: nl80211: fix the puncturing bitmap policy - net/mlx5e: flower: - fix raw counter initialization - fix missing error code - fix cloned flow attribute - ipa: - fix some register validity checks - fix a surprising number of bad offsets - kill FILT_ROUT_CACHE_CFG IPA register Previous releases - regressions: - tcp: fix bind() conflict check for dual-stack wildcard address - veth: fix use after free in XDP_REDIRECT when skb headroom is small - ipv4: fix incorrect table ID in IOCTL path - ipvlan: make skb->skb_iif track skb->dev for l3s mode - mptcp: - fix possible deadlock in subflow_error_report - fix UaFs when destroying unaccepted and listening sockets - dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290 Previous releases - always broken: - tcp: tcp_make_synack() can be called from process context, don't assume preemption is disabled when updating stats - netfilter: correct length for loading protocol registers - virtio_net: add checking sq is full inside xdp xmit - bonding: restore IFF_MASTER/SLAVE flags on bond enslave Ethertype change - phy: nxp-c45-tja11xx: fix MII_BASIC_CONFIG_REV bit number - eth: i40e: fix crash during reboot when adapter is in recovery mode - eth: ice: avoid deadlock on rtnl lock when auxiliary device plug/unplug meets bonding - dsa: mt7530: - remove now incorrect comment regarding port 5 - set PLL frequency and trgmii only when trgmii is used - eth: mtk_eth_soc: reset PCS state when changing interface types Misc: - ynl: another license adjustment - move the TCA_EXT_WARN_MSG attribute for tc action" * tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits) selftests: bonding: add tests for ether type changes bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change net: renesas: rswitch: Fix GWTSDIE register handling net: renesas: rswitch: Fix the output value of quote from rswitch_rx() ethernet: sun: add check for the mdesc_grab() net: ipa: fix some register validity checks net: ipa: kill FILT_ROUT_CACHE_CFG IPA register net: ipa: add two missing declarations net: ipa: reg: include <linux/bug.h> net: xdp: don't call notifiers during driver init net/sched: act_api: add specific EXT_WARN_MSG for tc action Revert "net/sched: act_api: move TCA_EXT_WARN_MSG to the correct hierarchy" net: dsa: microchip: fix RGMII delay configuration on KSZ8765/KSZ8794/KSZ8795 ynl: make the tooling check the license ynl: broaden the license even more tools: ynl: make definitions optional again hsr: ratelimit only when errors are printed qed/qed_mng_tlv: correctly zero out ->min instead of ->hour selftests: net: devlink_port_split.py: skip test if no suitable device available ...
2023-03-17Merge tag 'pm-6.3-rc3' of ↵Gravatar Linus Torvalds 1-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix an error code path issue in a cpuidle driver and make the sleepgraph utility more robust against unexpected input. Specifics: - Fix the psci_pd_init_topology() failure path in the PSCI cpuidle driver (Shawn Guo) - Modify the sleepgraph utility so it does not crash on binary data in device names (Todd Brandt)" * tag 'pm-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: pm-graph: sleepgraph: Avoid crashing on binary data in device names cpuidle: psci: Iterate backwards over list in psci_pd_remove()
2023-03-17Merge tag 'acpi-6.3-rc3' of ↵Gravatar Linus Torvalds 1-3/+15
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These add some new quirks, fix PPTT handling, fix an ACPI utility and correct a mistake in the ACPI documentation. Specifics: - Fix ACPI PPTT handling to avoid sleep in the atomic context when it is not present (Sudeep Holla) - Add 'backlight=native' DMI quirk for Dell Vostro 15 3535 to the ACPI video driver (Chia-Lin Kao) - Add ACPI quirks for I2C device enumeration on Lenovo Yoga Book X90 and Acer Iconia One 7 B1-750 (Hans de Goede) - Fix handling of invalid command line option values in the ACPI pfrut utility (Chen Yu) - Fix references to I2C device data type in the ACPI documentation for device enumeration (Andy Shevchenko)" * tag 'acpi-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: tools: pfrut: Check if the input of level and type is in the right numeric range ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Book X90 ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 7 B1-750 ACPI: x86: Introduce an acpi_quirk_skip_gpio_event_handlers() helper ACPI: video: Add backlight=native DMI quirk for Dell Vostro 15 3535 ACPI: docs: enumeration: Correct reference to the I²C device data type
2023-03-17Merge branch 'turbostat' of ↵Gravatar Linus Torvalds 2-13/+15
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat fweaks and fixes from Len Brown: "Leprechaun sized fixes and tweaks touching only turbostat. 'Keeping happy users happy since 2010'" * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: version 2023.03.17 tools/power turbostat: fix decoding of HWP_STATUS tools/power turbostat: Introduce support for EMR tools/power turbostat: remove stray newlines from warn/warnx strings tools/power turbostat: Fix /dev/cpu_dma_latency warnings tools/power turbostat: Provide better debug messages for failed capabilities accesses tools/power turbostat: update dump of SECONDARY_TURBO_RATIO_LIMIT
2023-03-17tools/power turbostat: version 2023.03.17Gravatar Len Brown 1-8/+5
Happy St. Patrick's Day! Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: fix decoding of HWP_STATUSGravatar Antti Laakso 1-1/+1
The "excursion to minimum" information is in bit2 in HWP_STATUS MSR. Fix the bitmask used for decoding the register. Signed-off-by: Antti Laakso <antti.laakso@intel.com> Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: Introduce support for EMRGravatar Zhang Rui 1-0/+3
Introduce support for EMR. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: remove stray newlines from warn/warnx stringsGravatar Len Brown 1-2/+2
warn(3) terminates strings with newlines Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: Fix /dev/cpu_dma_latency warningsGravatar Prarit Bhargava 2-1/+3
When running as non-root the following error is seen in turbostat: turbostat: fopen /dev/cpu_dma_latency : Permission denied turbostat and the man page have information on how to avoid other permission errors, so these can be fixed the same way. Provide better /dev/cpu_dma_latency warnings that provide instructions on how to avoid the error, and update the man page. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: Provide better debug messages for failed capabilities ↵Gravatar Prarit Bhargava 2-7/+7
accesses turbostat reports some capabilities access errors and not others. Provide the same debug message for all errors. [lenb: remove extra quotes] Cc: David Arcari <darcari@redhat.com> Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17tools/power turbostat: update dump of SECONDARY_TURBO_RATIO_LIMITGravatar Len Brown 1-1/+1
cosmetic only (but useful if you copy/paste) Signed-off-by: Len Brown <len.brown@intel.com>
2023-03-17selftests: bonding: add tests for ether type changesGravatar Nikolay Aleksandrov 2-1/+87
Add new network selftests for the bonding device which exercise the ether type changing call paths. They also test for the recent syzbot bug[1] which causes a warning and results in wrong device flags (IFF_SLAVE missing). The test adds three bond devices and a nlmon device, enslaves one of the bond devices to the other and then uses the nlmon device for successful and unsuccesful enslaves both of which change the bond ether type. Thus we can test for both MASTER and SLAVE flags at the same time. If the flags are properly restored we get: TEST: Change ether type of an enslaved bond device with unsuccessful enslave [ OK ] TEST: Change ether type of an enslaved bond device with successful enslave [ OK ] [1] https://syzkaller.appspot.com/bug?id=391c7b1f6522182899efba27d891f1743e8eb3ef Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Acked-by: Jonathan Toppins <jtoppins@redhat.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-16ynl: make the tooling check the licenseGravatar Jakub Kicinski 2-6/+15
The (only recently documented) expectation is that all specs are under a certain license, but we don't actually enforce it. What's worse we then go ahead and assume the license was right, outputting the expected license into generated files. Fixes: 37d9df224d1e ("ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause") Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-16ynl: broaden the license even moreGravatar Jakub Kicinski 2-5/+5
I relicensed Netlink spec code to GPL-2.0 OR BSD-3-Clause but we still put a slightly different license on the uAPI header than the rest of the code. Use the Linux-syscall-note on all the specs and all generated code. It's moot for kernel code, but should not hurt. This way the licenses match everywhere. Cc: Chuck Lever <chuck.lever@oracle.com> Fixes: 37d9df224d1e ("ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause") Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-16tools: ynl: make definitions optional againGravatar Jakub Kicinski 1-1/+2
definitions are optional, commit in question breaks cli for ethtool. Fixes: 6517a60b0307 ("tools: ynl: move the enum classes to shared code") Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-16selftests: net: devlink_port_split.py: skip test if no suitable device availableGravatar Po-Hsu Lin 1-5/+31
The `devlink -j port show` command output may not contain the "flavour" key, an example from Ubuntu 22.10 s390x LPAR(5.19.0-37-generic), with mlx4 driver and iproute2-5.15.0: {"port":{"pci/0001:00:00.0/1":{"type":"eth","netdev":"ens301"}, "pci/0001:00:00.0/2":{"type":"eth","netdev":"ens301d1"}, "pci/0002:00:00.0/1":{"type":"eth","netdev":"ens317"}, "pci/0002:00:00.0/2":{"type":"eth","netdev":"ens317d1"}}} This will cause a KeyError exception. Create a validate_devlink_output() to check for this "flavour" from devlink command output to avoid this KeyError exception. Also let it handle the check for `devlink -j dev show` output in main(). Apart from this, if the test was not started because the max lanes of the designated device is 0. The script will still return 0 and thus causing a false-negative test result. Use a found_max_lanes flag to determine if these tests were skipped due to this reason and return KSFT_SKIP to make it more clear. Link: https://bugs.launchpad.net/bugs/1937133 Fixes: f3348a82e727 ("selftests: net: Add port split test") Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com> Link: https://lore.kernel.org/r/20230315165353.229590-1-po-hsu.lin@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-16Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmGravatar Linus Torvalds 48-444/+273
Pull kvm fixes from Paolo Bonzini: "ARM64: - Address a rather annoying bug w.r.t. guest timer offsetting. The synchronization of timer offsets between vCPUs was broken, leading to inconsistent timer reads within the VM. x86: - New tests for the slow path of the EVTCHNOP_send Xen hypercall - Add missing nVMX consistency checks for CR0 and CR4 - Fix bug that broke AMD GATag on 512 vCPU machines Selftests: - Skip hugetlb tests if huge pages are not available - Sync KVM exit reasons" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: selftests: Sync KVM exit reasons in selftests KVM: selftests: Add macro to generate KVM exit reason strings KVM: selftests: Print expected and actual exit reason in KVM exit reason assert KVM: selftests: Make vCPU exit reason test assertion common KVM: selftests: Add EVTCHNOP_send slow path test to xen_shinfo_test KVM: selftests: Use enum for test numbers in xen_shinfo_test KVM: selftests: Add helpers to make Xen-style VMCALL/VMMCALL hypercalls KVM: selftests: Move the guts of kvm_hypercall() to a separate macro KVM: SVM: WARN if GATag generation drops VM or vCPU ID information KVM: SVM: Modify AVIC GATag to support max number of 512 vCPUs KVM: SVM: Fix a benign off-by-one bug in AVIC physical table mask selftests: KVM: skip hugetlb tests if huge pages are not available KVM: VMX: Use tabs instead of spaces for indentation KVM: VMX: Fix indentation coding style issue KVM: nVMX: remove unnecessary #ifdef KVM: nVMX: add missing consistency checks for CR0 and CR4 KVM: arm64: timers: Convert per-vcpu virtual offset to a global value
2023-03-16test/vsock: copy to user failure testGravatar Arseniy Krasnov 1-0/+118
This adds SOCK_STREAM and SOCK_SEQPACKET tests for invalid buffer case. It tries to read data to NULL buffer (data already presents in socket's queue), then uses valid buffer. For SOCK_STREAM second read must return data, because skbuff is not dropped, but for SOCK_SEQPACKET skbuff will be dropped by kernel, and 'recv()' will return EAGAIN. Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-15Merge tag 'linux-kselftest-fixes-6.3-rc3' of ↵Gravatar Linus Torvalds 2-4/+11
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "A fix to amd-pstate test Makefile and a fix to LLVM build for x86 in kselftest common lib.mk" * tag 'linux-kselftest-fixes-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: fix LLVM build for i386 and x86_64 selftests: amd-pstate: fix TEST_FILES
2023-03-15selftest: Add test for bind() conflicts.Gravatar Kuniyuki Iwashima 3-0/+116
The test checks if (IPv4, IPv6) address pair properly conflict or not. * IPv4 * 0.0.0.0 * 127.0.0.1 * IPv6 * :: * ::1 If the IPv6 address is [::], the second bind() always fails. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-14ACPI: tools: pfrut: Check if the input of level and type is in the right ↵Gravatar Chen Yu 1-3/+15
numeric range The user provides arbitrary non-numeic value to level and type, which could bring unexpected behavior. In this case the expected behavior would be to throw an error. pfrut -h usage: pfrut [OPTIONS] code injection: -l, --load -s, --stage -a, --activate -u, --update [stage and activate] -q, --query -d, --revid update telemetry: -G, --getloginfo -T, --type(0:execution, 1:history) -L, --level(0, 1, 2, 4) -R, --read -D, --revid log pfrut -T A pfrut -G log_level:0 log_type:0 log_revid:2 max_data_size:65536 chunk1_size:0 chunk2_size:1530 rollover_cnt:0 reset_cnt:17 Fix this by restricting the input to be in the expected range. Reported-by: Hariganesh Govindarajulu <hariganesh.govindarajulu@intel.com> Suggested-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-03-14pm-graph: sleepgraph: Avoid crashing on binary data in device namesGravatar Todd Brandt 1-3/+2
A regression has occurred in the hid-sensor code where a device name string has not been initialized to 0, and ends up without a NULL char and is printed with %s. This includes random binary data in the device name, which makes its way into the ftrace output and ends up crashing sleepgraph because it expects the ftrace output to be ASCII only. For example: "HID-SENSOR-INT-020b?.39.auto" ends up in ftrace instead of "HID-SENSOR-INT-020b.39.auto". It causes this crash in sleepgraph: File "/usr/bin/sleepgraph", line 5579, in executeSuspend for line in fp: File "/usr/lib/python3.10/codecs.py", line 322, in decode (result, consumed) = self._buffer_decode(data, self.errors, final) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 1568: invalid start byte The issue is present in 6.3-rc1 and is described in full here: https://bugzilla.kernel.org/show_bug.cgi?id=217169 A separate fix has been submitted to have this issue repaired, but it has also exposed a larger bug in sleepgraph, since nothing should make sleepgraph crash. Sleepgraph needs to be able to handle binary data showing up in ftrace gracefully. Modify the ftrace processing code to treat it as potentially binary and to filter out binary data and leave just the ASCII. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217169 Fixes: 98c062e82451 ("HID: hid-sensor-custom: Allow more custom iio sensors") Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-03-14KVM: selftests: Sync KVM exit reasons in selftestsGravatar Vipin Sharma 1-2/+15
Add missing KVM_EXIT_* reasons in KVM selftests from include/uapi/linux/kvm.h Signed-off-by: Vipin Sharma <vipinsh@google.com> Message-Id: <20230204014547.583711-5-vipinsh@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Add macro to generate KVM exit reason stringsGravatar Sean Christopherson 1-26/+28
Add and use a macro to generate the KVM exit reason strings array instead of relying on developers to correctly copy+paste+edit each string. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230204014547.583711-4-vipinsh@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Print expected and actual exit reason in KVM exit reason assertGravatar Vipin Sharma 1-1/+2
Print what KVM exit reason a test was expecting and what it actually got int TEST_ASSERT_KVM_EXIT_REASON(). Signed-off-by: Vipin Sharma <vipinsh@google.com> Message-Id: <20230204014547.583711-3-vipinsh@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Make vCPU exit reason test assertion commonGravatar Vipin Sharma 44-293/+69
Make TEST_ASSERT_KVM_EXIT_REASON() macro and replace all exit reason test assert statements with it. No functional changes intended. Signed-off-by: Vipin Sharma <vipinsh@google.com> Reviewed-by: David Matlack <dmatlack@google.com> Message-Id: <20230204014547.583711-2-vipinsh@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Add EVTCHNOP_send slow path test to xen_shinfo_testGravatar David Woodhouse 1-0/+27
When kvm_xen_evtchn_send() takes the slow path because the shinfo GPC needs to be revalidated, it used to violate the SRCU vs. kvm->lock locking rules and potentially cause a deadlock. Now that lockdep is learning to catch such things, make sure that code path is exercised by the selftest. Link: https://lore.kernel.org/all/20230113124606.10221-2-dwmw2@infradead.org Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230204024151.1373296-5-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Use enum for test numbers in xen_shinfo_testGravatar David Woodhouse 1-51/+82
The xen_shinfo_test started off with very few iterations, and the numbers we used in GUEST_SYNC() were precisely mapped to the RUNSTATE_xxx values anyway to start with. It has since grown quite a few more tests, and it's kind of awful to be handling them all as bare numbers. Especially when I want to add a new test in the middle. Define an enum for the test stages, and use it both in the guest code and the host switch statement. No functional change, if I can count to 24. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230204024151.1373296-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Add helpers to make Xen-style VMCALL/VMMCALL hypercallsGravatar Sean Christopherson 3-54/+21
Add wrappers to do hypercalls using VMCALL/VMMCALL and Xen's register ABI (as opposed to full Xen-style hypercalls through a hypervisor provided page). Using the common helpers dedups a pile of code, and uses the native hypercall instruction when running on AMD. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230204024151.1373296-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14KVM: selftests: Move the guts of kvm_hypercall() to a separate macroGravatar Sean Christopherson 1-12/+17
Extract the guts of kvm_hypercall() to a macro so that Xen hypercalls, which have a different register ABI, can reuse the VMCALL vs. VMMCALL logic. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230204024151.1373296-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-14selftests: KVM: skip hugetlb tests if huge pages are not availableGravatar Paolo Bonzini 1-9/+16
Right now, if KVM memory stress tests are run with hugetlb sources but hugetlb is not available (either in the kernel or because /proc/sys/vm/nr_hugepages is 0) the test will fail with a memory allocation error. This makes it impossible to add tests that default to hugetlb-backed memory, because on a machine with a default configuration they will fail. Therefore, check HugePages_Total as well and, if zero, direct the user to enable hugepages in procfs. Furthermore, return KSFT_SKIP whenever hugetlb is not available. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-13Merge branch 'bpf: Allow reads from uninit stack'Gravatar Alexei Starovoitov 10-135/+194
Merge commit bf9bec4cb3a4 ("Merge branch 'bpf: Allow reads from uninit stack'") from bpf-next to bpf tree to address verification issues in some programs due to stack usage. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-03-13Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostGravatar Linus Torvalds 1-0/+1
Pull virtio fixes from Michael Tsirkin: "Some virtio / vhost / vdpa fixes accumulated so far" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: tools/virtio: Ignore virtio-trace/trace-agent vdpa_sim: set last_used_idx as last_avail_idx in vdpasim_queue_ready vhost-vdpa: free iommu domain after last use during cleanup vdpa/mlx5: should not activate virtq object when suspended vp_vdpa: fix the crash in hot unplug with vp_vdpa
2023-03-13tools/virtio: Ignore virtio-trace/trace-agentGravatar Rong Tao 1-0/+1
since commit 108fc82596e3("tools: Add guest trace agent as a user tool") introduce virtio-trace/trace-agent, it should be ignored in the git tree. Signed-off-by: Rong Tao <rongtao@cestc.cn> Message-Id: <tencent_52B2BC2F47540A5FEB46E710BD0C8485B409@qq.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>