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2021-04-20KVM: selftests: Add a test for kvm page table codeYanan Wang
This test serves as a performance tester and a bug reproducer for kvm page table code (GPA->HPA mappings), so it gives guidance for people trying to make some improvement for kvm. The function guest_code() can cover the conditions where a single vcpu or multiple vcpus access guest pages within the same memory region, in three VM stages(before dirty logging, during dirty logging, after dirty logging). Besides, the backing src memory type(ANONYMOUS/THP/HUGETLB) of the tested memory region can be specified by users, which means normal page mappings or block mappings can be chosen by users to be created in the test. If ANONYMOUS memory is specified, kvm will create normal page mappings for the tested memory region before dirty logging, and update attributes of the page mappings from RO to RW during dirty logging. If THP/HUGETLB memory is specified, kvm will create block mappings for the tested memory region before dirty logging, and split the blcok mappings into normal page mappings during dirty logging, and coalesce the page mappings back into block mappings after dirty logging is stopped. So in summary, as a performance tester, this test can present the performance of kvm creating/updating normal page mappings, or the performance of kvm creating/splitting/recovering block mappings, through execution time. When we need to coalesce the page mappings back to block mappings after dirty logging is stopped, we have to firstly invalidate *all* the TLB entries for the page mappings right before installation of the block entry, because a TLB conflict abort error could occur if we can't invalidate the TLB entries fully. We have hit this TLB conflict twice on aarch64 software implementation and fixed it. As this test can imulate process from dirty logging enabled to dirty logging stopped of a VM with block mappings, so it can also reproduce this TLB conflict abort due to inadequate TLB invalidation when coalescing tables. Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-11-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: Adapt vm_userspace_mem_region_add to new helpersYanan Wang
With VM_MEM_SRC_ANONYMOUS_THP specified in vm_userspace_mem_region_add(), we have to get the transparent hugepage size for HVA alignment. With the new helpers, we can use get_backing_src_pagesz() to check whether THP is configured and then get the exact configured hugepage size. As different architectures may have different THP page sizes configured, this can get the accurate THP page sizes on any platform. Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-10-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: List all hugetlb src types specified with page sizesYanan Wang
With VM_MEM_SRC_ANONYMOUS_HUGETLB, we currently can only use system default hugetlb pages to back the testing guest memory. In order to add flexibility, now list all the known hugetlb backing src types with different page sizes, so that we can specify use of hugetlb pages of the exact granularity that we want. And as all the known hugetlb page sizes are listed, it's appropriate for all architectures. Besides, the helper get_backing_src_pagesz() is added to get the granularity of different backing src types(anonumous, thp, hugetlb). Suggested-by: Ben Gardon <bgardon@google.com> Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-9-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: Add a helper to get system default hugetlb page sizeYanan Wang
If HUGETLB is configured in the host kernel, then we can know the system default hugetlb page size through *cat /proc/meminfo*. Otherwise, we will not see the information of hugetlb pages in file /proc/meminfo if it's not configured. So add a helper to determine whether HUGETLB is configured and then get the default page size by reading /proc/meminfo. This helper can be useful when a program wants to use the default hugetlb pages of the system and doesn't know the default page size. Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-8-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: Add a helper to get system configured THP page sizeYanan Wang
If we want to have some tests about transparent hugepages, the system configured THP hugepage size should better be known by the tests, which can be used for kinds of alignment or guest memory accessing of vcpus... So it makes sense to add a helper to get the transparent hugepage size. With VM_MEM_SRC_ANONYMOUS_THP specified in vm_userspace_mem_region_add(), we now stat /sys/kernel/mm/transparent_hugepage to check whether THP is configured in the host kernel before madvise(). Based on this, we can also read file /sys/kernel/mm/transparent_hugepage/hpage_pmd_size to get THP hugepage size. Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-7-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: Make a generic helper to get vm guest mode stringsYanan Wang
For generality and conciseness, make an API which can be used in all kvm libs and selftests to get vm guest mode strings. And the index i is checked in the API in case of possiable faults. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-6-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-20KVM: selftests: Print the errno besides error-string in TEST_ASSERTYanan Wang
Print the errno besides error-string in TEST_ASSERT in the format of "errno=%d - %s" will explicitly indicate that the string is an error information. Besides, the errno is easier to be used for debugging than the error-string. Suggested-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Yanan Wang <wangyanan55@huawei.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-Id: <20210330080856.14940-5-wangyanan55@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-19bpf/selftests: Add bpf_get_task_stack retval bounds test_progDave Marchevsky
Add a libbpf test prog which feeds bpf_get_task_stack's return value into seq_write after confirming it's positive. No attempt to bound the value from above is made. Load will fail if verifier does not refine retval range based on buf sz input to bpf_get_task_stack. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20210416204704.2816874-4-davemarchevsky@fb.com
2021-04-19bpf/selftests: Add bpf_get_task_stack retval bounds verifier testDave Marchevsky
Add a bpf_iter test which feeds bpf_get_task_stack's return value into seq_write after confirming it's positive. No attempt to bound the value from above is made. Load will fail if verifier does not refine retval range based on buf sz input to bpf_get_task_stack. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20210416204704.2816874-3-davemarchevsky@fb.com
2021-04-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Add vlan match and pop actions to the flowtable offload, patches from wenxu. 2) Reduce size of the netns_ct structure, which itself is embedded in struct net Make netns_ct a read-mostly structure. Patches from Florian Westphal. 3) Add FLOW_OFFLOAD_XMIT_UNSPEC to skip dst check from garbage collector path, as required by the tc CT action. From Roi Dayan. 4) VLAN offload fixes for nftables: Allow for matching on both s-vlan and c-vlan selectors. Fix match of VLAN id due to incorrect byteorder. Add a new routine to properly populate flow dissector ethertypes. 5) Missing keys in ip{6}_route_me_harder() results in incorrect routes. This includes an update for selftest infra. Patches from Ido Schimmel. 6) Add counter hardware offload support through FLOW_CLS_STATS. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-19selftests/bpf: Add a series of tests for bpf_snprintfFlorent Revest
The "positive" part tests all format specifiers when things go well. The "negative" part makes sure that incorrect format strings fail at load time. Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210419155243.1632274-7-revest@chromium.org
2021-04-19selftests: fib_nexthops: Test large scale nexthop flushingIdo Schimmel
Test that all the nexthops are flushed when a multi-part nexthop dump is required for the flushing. Without previous patch: # ./fib_nexthops.sh TEST: Large scale nexthop flushing [FAIL] With previous patch: # ./fib_nexthops.sh TEST: Large scale nexthop flushing [ OK ] Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-18selftests: fib_tests: Add test cases for interaction with manglingIdo Schimmel
Test that packets are correctly routed when netfilter mangling rules are present. Without previous patch: # ./fib_tests.sh -t ipv4_mangle IPv4 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [FAIL] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [FAIL] Tests passed: 3 Tests failed: 2 # ./fib_tests.sh -t ipv6_mangle IPv6 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [FAIL] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [FAIL] Tests passed: 3 Tests failed: 2 With previous patch: # ./fib_tests.sh -t ipv4_mangle IPv4 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [ OK ] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [ OK ] Tests passed: 5 Tests failed: 0 # ./fib_tests.sh -t ipv6_mangle IPv6 mangling tests TEST: Connection with correct parameters [ OK ] TEST: Connection with incorrect parameters [ OK ] TEST: Connection with correct parameters - mangling [ OK ] TEST: Connection with correct parameters - no mangling [ OK ] TEST: Connection check - server side [ OK ] Tests passed: 5 Tests failed: 0 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-04-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c - keep the ZC code, drop the code related to reinit net/bridge/netfilter/ebtables.c - fix build after move to net_generic Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-17KVM: selftests: remove redundant semi-colonYang Yingliang
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Message-Id: <20210401142514.1688199-1-yangyingliang@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2021-04-17 The following pull-request contains BPF updates for your *net* tree. We've added 10 non-merge commits during the last 9 day(s) which contain a total of 8 files changed, 175 insertions(+), 111 deletions(-). The main changes are: 1) Fix a potential NULL pointer dereference in libbpf's xsk umem handling, from Ciara Loftus. 2) Mitigate a speculative oob read of up to map value size by tightening the masking window, from Daniel Borkmann. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16selftests: mptcp: add packet mark test caseFlorian Westphal
Extend mptcp_connect tool with SO_MARK support (-M <value>) and add a test case that checks that the packet mark gets copied to all subflows. This is done by only allowing packets with either skb->mark 1 or 2 via iptables. DROP rule packet counter is checked; if its not zero, print an error message and fail the test case. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16bpf: Update selftests to reflect new error statesDaniel Borkmann
Update various selftest error messages: * The 'Rx tried to sub from different maps, paths, or prohibited types' is reworked into more specific/differentiated error messages for better guidance. * The change into 'value -4294967168 makes map_value pointer be out of bounds' is due to moving the mixed bounds check into the speculation handling and thus occuring slightly later than above mentioned sanity check. * The change into 'math between map_value pointer and register with unbounded min value' is similarly due to register sanity check coming before the mixed bounds check. * The case of 'map access: known scalar += value_ptr from different maps' now loads fine given masks are the same from the different paths (despite max map value size being different). Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org>
2021-04-16selftests/perf_events: Add kselftest for remove_on_execMarco Elver
Add kselftest to test that remove_on_exec removes inherited events from child tasks. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210408103605.1676875-9-elver@google.com
2021-04-16selftests/perf_events: Add kselftest for process-wide sigtrap handlingMarco Elver
Add a kselftest for testing process-wide perf events with synchronous SIGTRAP on events (using breakpoints). In particular, we want to test that changes to the event propagate to all children, and the SIGTRAPs are in fact synchronously sent to the thread where the event occurred. Note: The "signal_stress" test case is also added later in the series to perf tool's built-in tests. The test here is more elaborate in that respect, which on one hand avoids bloating the perf tool unnecessarily, but we also benefit from structured tests with TAP-compliant output that the kselftest framework provides. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210408103605.1676875-8-elver@google.com
2021-04-15selftests/bpf: Silence clang compilation warningsYonghong Song
With clang compiler: make -j60 LLVM=1 LLVM_IAS=1 <=== compile kernel make -j60 -C tools/testing/selftests/bpf LLVM=1 LLVM_IAS=1 Some linker flags are not used/effective for some binaries and we have warnings like: warning: -lelf: 'linker' input unused [-Wunused-command-line-argument] We also have warnings like: .../selftests/bpf/prog_tests/ns_current_pid_tgid.c:74:57: note: treat the string as an argument to avoid this if (CHECK(waitpid(cpid, &wstatus, 0) == -1, "waitpid", strerror(errno))) ^ "%s", .../selftests/bpf/test_progs.h:129:35: note: expanded from macro 'CHECK' _CHECK(condition, tag, duration, format) ^ .../selftests/bpf/test_progs.h:108:21: note: expanded from macro '_CHECK' fprintf(stdout, ##format); \ ^ The first warning can be silenced with clang option -Wno-unused-command-line-argument. For the second warning, source codes are modified as suggested by the compiler to silence the warning. Since gcc does not support the option -Wno-unused-command-line-argument and the warning only happens with clang compiler, the option -Wno-unused-command-line-argument is enabled only when clang compiler is used. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210413153429.3029377-1-yhs@fb.com
2021-04-15selftests/bpf: Fix test_cpp compilation failure with clangYonghong Song
With clang compiler: make -j60 LLVM=1 LLVM_IAS=1 <=== compile kernel make -j60 -C tools/testing/selftests/bpf LLVM=1 LLVM_IAS=1 the test_cpp build failed due to the failure: warning: treating 'c-header' input as 'c++-header' when in C++ mode, this behavior is deprecated [-Wdeprecated] clang-13: error: cannot specify -o when generating multiple output files test_cpp compilation flag looks like: clang++ -g -Og -rdynamic -Wall -I<...> ... \ -Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program \ test_cpp.cpp <...>/test_core_extern.skel.h <...>/libbpf.a <...>/test_stub.o \ -lcap -lelf -lz -lrt -lpthread -o <...>/test_cpp The clang++ compiler complains the header file in the command line and also failed the compilation due to this. Let us remove the header file from the command line which is not intended any way, and this fixed the compilation problem. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210413153424.3028986-1-yhs@fb.com
2021-04-15selftests: Set CC to clang in lib.mk if LLVM is setYonghong Song
selftests/bpf/Makefile includes lib.mk. With the following command make -j60 LLVM=1 LLVM_IAS=1 <=== compile kernel make -j60 -C tools/testing/selftests/bpf LLVM=1 LLVM_IAS=1 V=1 some files are still compiled with gcc. This patch fixed lib.mk issue which sets CC to gcc in all cases. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210413153413.3027426-1-yhs@fb.com
2021-04-14tools/testing: Remove unused variablezuoqilin
Remove unused variable "ret2". Signed-off-by: zuoqilin <zuoqilin@yulong.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210414141639.1446-1-zuoqilin1@163.com
2021-04-14selftests/bpf: Fix the ASSERT_ERR_PTR macroFlorent Revest
It is just missing a ';'. This macro is not used by any test yet. Fixes: 22ba36351631 ("selftests/bpf: Move and extend ASSERT_xxx() testing macros") Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20210414155632.737866-1-revest@chromium.org
2021-04-14Merge tag 'v5.12-rc7' into driver-core-nextGreg Kroah-Hartman
We need the driver core fix in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-13selftests/bpf: Add tests for target information in bpf_link info queriesToke Høiland-Jørgensen
Extend the fexit_bpf2bpf test to check that the info for the bpf_link returned by the kernel matches the expected values. While we're updating the test, change existing uses of CHEC() to use the much easier to read ASSERT_*() macros. v2: - Convert last CHECK() call and get rid of 'duration' var - Split ASSERT_OK_PTR() checks to two separate if statements Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210413091607.58945-2-toke@redhat.com
2021-04-11self-tests: add veth testsPaolo Abeni
Add some basic veth tests, that verify the expected flags and aggregation with different setups (default, xdp, etc...) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-11Merge branch 'for-mingo-rcu' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU changes from Paul E. McKenney: - Bitmap support for "N" as alias for last bit - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-04-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Conflicts: MAINTAINERS - keep Chandrasekar drivers/net/ethernet/mellanox/mlx5/core/en_main.c - simple fix + trust the code re-added to param.c in -next is fine include/linux/bpf.h - trivial include/linux/ethtool.h - trivial, fix kdoc while at it include/linux/skmsg.h - move to relevant place in tcp.c, comment re-wrapped net/core/skmsg.c - add the sk = sk // sk = NULL around calls net/tipc/crypto.c - trivial Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-09Merge tag 'net-5.12-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.12-rc7, including fixes from can, ipsec, mac80211, wireless, and bpf trees. No scary regressions here or in the works, but small fixes for 5.12 changes keep coming. Current release - regressions: - virtio: do not pull payload in skb->head - virtio: ensure mac header is set in virtio_net_hdr_to_skb() - Revert "net: correct sk_acceptq_is_full()" - mptcp: revert "mptcp: provide subflow aware release function" - ethernet: lan743x: fix ethernet frame cutoff issue - dsa: fix type was not set for devlink port - ethtool: remove link_mode param and derive link params from driver - sched: htb: fix null pointer dereference on a null new_q - wireless: iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd() - wireless: iwlwifi: fw: fix notification wait locking - wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding the rtnl dependency Current release - new code bugs: - napi: fix hangup on napi_disable for threaded napi - bpf: take module reference for trampoline in module - wireless: mt76: mt7921: fix airtime reporting and related tx hangs - wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending config command Previous releases - regressions: - rfkill: revert back to old userspace API by default - nfc: fix infinite loop, refcount & memory leaks in LLCP sockets - let skb_orphan_partial wake-up waiters - xfrm/compat: Cleanup WARN()s that can be user-triggered - vxlan, geneve: do not modify the shared tunnel info when PMTU triggers an ICMP reply - can: fix msg_namelen values depending on CAN_REQUIRED_SIZE - can: uapi: mark union inside struct can_frame packed - sched: cls: fix action overwrite reference counting - sched: cls: fix err handler in tcf_action_init() - ethernet: mlxsw: fix ECN marking in tunnel decapsulation - ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx - ethernet: i40e: fix receiving of single packets in xsk zero-copy mode - ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic Previous releases - always broken: - bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET - bpf: Refcount task stack in bpf_get_task_stack - bpf, x86: Validate computation of branch displacements - ieee802154: fix many similar syzbot-found bugs - fix NULL dereferences in netlink attribute handling - reject unsupported operations on monitor interfaces - fix error handling in llsec_key_alloc() - xfrm: make ipv4 pmtu check honor ip header df - xfrm: make hash generation lock per network namespace - xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp offload - ethtool: fix incorrect datatype in set_eee ops - xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory model - openvswitch: fix send of uninitialized stack memory in ct limit reply Misc: - udp: add get handling for UDP_GRO sockopt" * tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (182 commits) net: fix hangup on napi_disable for threaded napi net: hns3: Trivial spell fix in hns3 driver lan743x: fix ethernet frame cutoff issue net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh net: dsa: lantiq_gswip: Configure all remaining GSWIP_MII_CFG bits net: dsa: lantiq_gswip: Don't use PHY auto polling net: sched: sch_teql: fix null-pointer dereference ipv6: report errors for iftoken via netlink extack net: sched: fix err handler in tcf_action_init() net: sched: fix action overwrite reference counting Revert "net: sched: bump refcount for new action in ACT replace mode" ice: fix memory leak of aRFS after resuming from suspend i40e: Fix sparse warning: missing error code 'err' i40e: Fix sparse error: 'vsi->netdev' could be null i40e: Fix sparse error: uninitialized symbol 'ring' i40e: Fix sparse errors in i40e_txrx.c i40e: Fix parameters in aq_get_phy_register() nl80211: fix beacon head validation bpf, x86: Validate computation of branch displacements for x86-32 bpf, x86: Validate computation of branch displacements for x86-64 ...
2021-04-08selftests/bpf: ringbuf_multi: Test bpf_map__set_inner_map_fdYauheni Kaliuta
Test map__set_inner_map_fd() interaction with map-in-map initialization. Use hashmap of maps just to make it different to existing array of maps. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-9-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: ringbuf_multi: Use runtime page sizeYauheni Kaliuta
Set bpf table sizes dynamically according to the runtime page size value. Do not switch to ASSERT macros, keep CHECK, for consistency with the rest of the test. Can be a separate cleanup patch. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-8-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: ringbuf: Use runtime page sizeYauheni Kaliuta
Replace hardcoded 4096 with runtime value in the userspace part of the test and set bpf table sizes dynamically according to the value. Do not switch to ASSERT macros, keep CHECK, for consistency with the rest of the test. Can be a separate cleanup patch. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-6-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: mmap: Use runtime page sizeYauheni Kaliuta
Replace hardcoded 4096 with runtime value in the userspace part of the test and set bpf table sizes dynamically according to the value. Do not switch to ASSERT macros, keep CHECK, for consistency with the rest of the test. Can be a separate cleanup patch. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-5-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: Pass page size from userspace in map_ptrYauheni Kaliuta
Use ASSERT to check result but keep CHECK where format was used to report error. Use bpf_map__set_max_entries() to set map size dynamically from userspace according to page size. Zero-initialize the variable in bpf prog, otherwise it will cause problems on some versions of Clang. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-4-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: Pass page size from userspace in sockopt_skYauheni Kaliuta
Since there is no convenient way for bpf program to get PAGE_SIZE from inside of the kernel, pass the value from userspace. Zero-initialize the variable in bpf prog, otherwise it will cause problems on some versions of Clang. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-3-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: test_progs/sockopt_sk: Convert to use BPF skeletonYauheni Kaliuta
Switch the test to use BPF skeleton to save some boilerplate and make it easy to access bpf program bss segment. The latter will be used to pass PAGE_SIZE from userspace since there is no convenient way for bpf program to get it from inside of the kernel. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-2-yauheni.kaliuta@redhat.com
2021-04-08selftests/bpf: test_progs/sockopt_sk: Remove versionYauheni Kaliuta
As pointed by Andrii Nakryiko, _version is useless now, remove it. Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210408061310.95877-1-yauheni.kaliuta@redhat.com
2021-04-08tc-testing: add simple action test to verify batch change cleanupVlad Buslov
Verify cleanup of failed actions batch change where second action in batch fails after successful init of first action. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08tc-testing: add simple action test to verify batch add cleanupVlad Buslov
Verify cleanup of failed actions batch add where second action in batch fails after successful init of first action. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08lkdtm: Add REPORT_STACK for checking stack offsetsKees Cook
For validating the stack offset behavior, report the offset from a given process's first seen stack address. Add s script to calculate the results to the LKDTM kselftests. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210401232347.2791257-7-keescook@chromium.org
2021-04-08selftests/powerpc: Suggest memtrace instead of /dev/mem for ci memoryJordan Niethe
The suggested alternative for getting cache-inhibited memory with 'mem=' and /dev/mem is pretty hacky. Also, PAPR guests do not allow system memory to be mapped cache-inhibited so despite /dev/mem being available this will not work which can cause confusion. Instead recommend using the memtrace buffers. memtrace is only available on powernv so there will not be any chance of trying to do this in a guest. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210225032108.1458352-2-jniethe5@gmail.com
2021-04-08selftests/powerpc: Test for spurious kernel memory faults on radixJordan Niethe
Previously when mapping kernel memory on radix, no ptesync was included which would periodically lead to unhandled spurious faults. Mapping kernel memory is used when code patching with Strict RWX enabled. As suggested by Chris Riedl, turning ftrace on and off does a large amount of code patching so is a convenient way to see this kind of fault. Add a selftest to try and trigger this kind of a spurious fault. It tests for 30 seconds which is usually long enough for the issue to show up. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> [mpe: Rename it to better reflect what it does, rather than the symptom] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210208032957.1232102-2-jniethe5@gmail.com
2021-04-07selftests/resctrl: Change a few printed messagesFenghua Yu
Change a few printed messages to report test progress more clearly. Add a missing "\n" at the end of one printed message. Suggested-by: Shuah Khan <shuah@kernel.org> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2021-04-07selftests: mptcp: add the net device name testcaseGeliang Tang
This patch added a new testcase for setting the net device name. In it, pass the net device name to pm_nl_ctl to set the ifindex field of struct mptcp_pm_addr_entry. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-07KVM: selftests: vgic_init kvm selftests fixupEric Auger
Bring some improvements/rationalization over the first version of the vgic_init selftests: - ucall_init is moved in run_cpu() - vcpu_args_set is not called as not needed - whenever a helper is supposed to succeed, call the non "_" version - helpers do not return -errno, instead errno is checked by the caller - vm_gic struct is used whenever possible, as well as vm_gic_destroy - _kvm_create_device takes an addition fd parameter Signed-off-by: Eric Auger <eric.auger@redhat.com> Suggested-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210407135937.533141-1-eric.auger@redhat.com
2021-04-06KVM: selftests: aarch64/vgic-v3 init sequence testsEric Auger
The tests exercise the VGIC_V3 device creation including the associated KVM_DEV_ARM_VGIC_GRP_ADDR group attributes: - KVM_VGIC_V3_ADDR_TYPE_DIST/REDIST - KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION Some other tests dedicate to KVM_DEV_ARM_VGIC_GRP_REDIST_REGS group and especially the GICR_TYPER read. The goal was to test the case recently fixed by commit 23bde34771f1 ("KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace"). The API under test can be found at Documentation/virt/kvm/devices/arm-vgic-v3.rst Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210405163941.510258-10-eric.auger@redhat.com
2021-04-06x86/sgx: Expose SGX architectural definitions to the kernelSean Christopherson
Expose SGX architectural structures, as KVM will use many of the architectural constants and structs to virtualize SGX. Name the new header file as asm/sgx.h, rather than asm/sgx_arch.h, to have single header to provide SGX facilities to share with other kernel componments. Also update MAINTAINERS to include asm/sgx.h. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Co-developed-by: Kai Huang <kai.huang@intel.com> Signed-off-by: Kai Huang <kai.huang@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Link: https://lkml.kernel.org/r/6bf47acd91ab4d709e66ad1692c7803e4c9063a0.1616136308.git.kai.huang@intel.com
2021-04-05Merge 5.12-rc6 into driver-core-nextGreg Kroah-Hartman
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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