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2022-09-30Merge tag 'kvm-x86-6.1-2' of https://github.com/sean-jc/linux into HEADPaolo Bonzini8-81/+358
KVM x86 updates for 6.1, batch #2: - Misc PMU fixes and cleanups. - Fixes for Hyper-V hypercall selftest
2022-09-30KVM: selftests: Fix nx_huge_pages_test on TDP-disabled hostsDavid Matlack3-2/+48
Map the test's huge page region with 2MiB virtual mappings when TDP is disabled so that KVM can shadow the region with huge pages. This fixes nx_huge_pages_test on hosts where TDP hardware support is disabled. Purposely do not skip this test on TDP-disabled hosts. While we don't care about NX Huge Pages on TDP-disabled hosts from a security perspective, KVM does support it, and so we should test it. For TDP-enabled hosts, continue mapping the region with 4KiB pages to ensure that KVM can map it with huge pages irrespective of the guest mappings. Fixes: 8448ec5993be ("KVM: selftests: Add NX huge pages test") Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20220929181207.2281449-4-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Add helpers to read kvm_{intel,amd} boolean module parametersDavid Matlack3-12/+44
Add helper functions for reading the value of kvm_intel and kvm_amd boolean module parameters. Use the kvm_intel variant in vm_is_unrestricted_guest() to simplify the check for kvm_intel.unrestricted_guest. No functional change intended. Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20220929181207.2281449-3-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Tell the compiler that code after TEST_FAIL() is unreachableDavid Matlack1-2/+4
Add __builtin_unreachable() to TEST_FAIL() so that the compiler knows that any code after a TEST_FAIL() is unreachable. Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20220929181207.2281449-2-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30Revert "KVM: selftests: Fix nested SVM tests when built with clang"Sean Christopherson1-13/+1
Revert back to using memset() in generic_svm_setup() now that KVM selftests override memset() and friends specifically to prevent the compiler from generating fancy code and/or linking to the libc implementation. This reverts commit ed290e1c20da19fa100a3e0f421aa31b65984960. Suggested-by: Jim Mattson <jmattson@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220928233652.783504-8-seanjc@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Dedup subtests of fix_hypercall_testSean Christopherson1-32/+13
Combine fix_hypercall_test's two subtests into a common routine, the only difference between the two is whether or not the quirk is disabled. Passing a boolean is a little gross, but using an enum to make it super obvious that the callers are enabling/disabling the quirk seems like overkill. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Message-Id: <20220928233652.783504-7-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Explicitly verify KVM doesn't patch hypercall if quirk==offSean Christopherson1-8/+18
Explicitly verify that KVM doesn't patch in the native hypercall if the FIX_HYPERCALL_INSN quirk is disabled. The test currently verifies that a #UD occurred, but doesn't actually verify that no patching occurred. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220928233652.783504-6-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Hardcode VMCALL/VMMCALL opcodes in "fix hypercall" testSean Christopherson1-27/+16
Hardcode the VMCALL/VMMCALL opcodes in dedicated arrays instead of extracting the opcodes from inline asm, and patch in the "other" opcode so as to preserve the original opcode, i.e. the opcode that the test executes in the guest. Preserving the original opcode (by not patching the source), will make it easier to implement a check that KVM doesn't modify the opcode (the test currently only verifies that a #UD occurred). Use INT3 (0xcc) as the placeholder so that the guest will likely die a horrible death if the test's patching goes awry. As a bonus, patching from within the test dedups a decent chunk of code. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220928233652.783504-5-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Remove unnecessary register shuffling in fix_hypercall_testSean Christopherson1-14/+8
Use input constraints to load RAX and RBX when testing that KVM correctly does/doesn't patch the "wrong" hypercall. There's no need to manually load RAX and RBX, and no reason to clobber them either (KVM is not supposed to modify anything other than RAX). Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Message-Id: <20220928233652.783504-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Compare insn opcodes directly in fix_hypercall_testSean Christopherson1-18/+16
Directly compare the expected versus observed hypercall instructions when verifying that KVM patched in the native hypercall (FIX_HYPERCALL_INSN quirk enabled). gcc rightly complains that doing a 4-byte memcpy() with an "unsigned char" as the source generates an out-of-bounds accesses. Alternatively, "exp" and "obs" could be declared as 3-byte arrays, but there's no known reason to copy locally instead of comparing directly. In function ‘assert_hypercall_insn’, inlined from ‘guest_main’ at x86_64/fix_hypercall_test.c:91:2: x86_64/fix_hypercall_test.c:63:9: error: array subscript ‘unsigned int[0]’ is partly outside array bounds of ‘unsigned char[1]’ [-Werror=array-bounds] 63 | memcpy(&exp, exp_insn, sizeof(exp)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ x86_64/fix_hypercall_test.c: In function ‘guest_main’: x86_64/fix_hypercall_test.c:42:22: note: object ‘vmx_hypercall_insn’ of size 1 42 | extern unsigned char vmx_hypercall_insn; | ^~~~~~~~~~~~~~~~~~ x86_64/fix_hypercall_test.c:25:22: note: object ‘svm_hypercall_insn’ of size 1 25 | extern unsigned char svm_hypercall_insn; | ^~~~~~~~~~~~~~~~~~ In function ‘assert_hypercall_insn’, inlined from ‘guest_main’ at x86_64/fix_hypercall_test.c:91:2: x86_64/fix_hypercall_test.c:64:9: error: array subscript ‘unsigned int[0]’ is partly outside array bounds of ‘unsigned char[1]’ [-Werror=array-bounds] 64 | memcpy(&obs, obs_insn, sizeof(obs)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ x86_64/fix_hypercall_test.c: In function ‘guest_main’: x86_64/fix_hypercall_test.c:25:22: note: object ‘svm_hypercall_insn’ of size 1 25 | extern unsigned char svm_hypercall_insn; | ^~~~~~~~~~~~~~~~~~ x86_64/fix_hypercall_test.c:42:22: note: object ‘vmx_hypercall_insn’ of size 1 42 | extern unsigned char vmx_hypercall_insn; | ^~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make: *** [../lib.mk:135: tools/testing/selftests/kvm/x86_64/fix_hypercall_test] Error 1 Fixes: 6c2fa8b20d0c ("selftests: KVM: Test KVM_X86_QUIRK_FIX_HYPERCALL_INSN") Cc: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Message-Id: <20220928233652.783504-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Implement memcmp(), memcpy(), and memset() for guest useSean Christopherson2-1/+49
Implement memcmp(), memcpy(), and memset() to override the compiler's built-in versions in order to guarantee that the compiler won't generate out-of-line calls to external functions via the PLT. This allows the helpers to be safely used in guest code, as KVM selftests don't support dynamic loading of guest code. Steal the implementations from the kernel's generic versions, sans the optimizations in memcmp() for unaligned accesses. Put the utilities in a separate compilation unit and build with -ffreestanding to fudge around a gcc "feature" where it will optimize memset(), memcpy(), etc... by generating a recursive call. I.e. the compiler optimizes itself into infinite recursion. Alternatively, the individual functions could be tagged with optimize("no-tree-loop-distribute-patterns"), but using "optimize" for anything but debug is discouraged, and Linus NAK'd the use of the flag in the kernel proper[*]. https://lore.kernel.org/lkml/CAHk-=wik-oXnUpfZ6Hw37uLykc-_P0Apyn2XuX-odh-3Nzop8w@mail.gmail.com Cc: Andrew Jones <andrew.jones@linux.dev> Cc: Anup Patel <anup@brainfault.org> Cc: Atish Patra <atishp@atishpatra.org> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Claudio Imbrenda <imbrenda@linux.ibm.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220928233652.783504-2-seanjc@google.com> Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: Gracefully handle empty stack tracesDavid Matlack1-7/+13
Bail out of test_dump_stack() if the stack trace is empty rather than invoking addr2line with zero addresses. The problem with the latter is that addr2line will block waiting for addresses to be passed in via stdin, e.g. if running a selftest from an interactive terminal. Opportunistically fix up the comment that mentions skipping 3 frames since only 2 are skipped in the code. Cc: Vipin Sharma <vipinsh@google.com> Cc: Sean Christopherson <seanjc@google.com> Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20220922231724.3560211-1-dmatlack@google.com> [Small tweak to keep backtrace() call close to if(). - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30KVM: selftests: replace assertion with warning in access_tracking_perf_testEmanuele Giuseppe Esposito1-9/+16
Page_idle uses {ptep/pmdp}_clear_young_notify which in turn calls the mmu notifier callback ->clear_young(), which purposefully does not flush the TLB. When running the test in a nested guest, point 1. of the test doc header is violated, because KVM TLB is unbounded by size and since no flush is forced, KVM does not update the sptes accessed/idle bits resulting in guest assertion failure. More precisely, only the first ACCESS_WRITE in run_test() actually makes visible changes, because sptes are created and the accessed bit is set to 1 (or idle bit is 0). Then the first mark_memory_idle() passes since access bit is still one, and sets all pages as idle (or not accessed). When the next write is performed, the update is not flushed therefore idle is still 1 and next mark_memory_idle() fails. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Message-Id: <20220926082923.299554-1-eesposit@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30Merge branch 'for-next/kselftest' into for-next/coreCatalin Marinas31-168/+1313
* for-next/kselftest: (28 commits) : Kselftest updates for arm64 kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress kselftest/arm64: Don't enable v8.5 for MTE selftest builds kselftest/arm64: Fix typo in hwcap check kselftest/arm64: Add hwcap test for RNG kselftest/arm64: Add SVE 2 to the tested hwcaps kselftest/arm64: Add missing newline in hwcap output kselftest/arm64: Fix spelling misakes of signal names kselftest/arm64: Enforce actual ABI for SVE syscalls kselftest/arm64: Correct buffer allocation for SVE Z registers kselftest/arm64: Include larger SVE and SME VLs in signal tests kselftest/arm64: Allow larger buffers in get_signal_context() kselftest/arm64: Preserve any EXTRA_CONTEXT in handle_signal_copyctx() kselftest/arm64: Validate contents of EXTRA_CONTEXT blocks kselftest/arm64: Only validate each signal context once kselftest/arm64: Remove unneeded protype for validate_extra_context() kselftest/arm64: Fix validation of EXTRA_CONTEXT signal context location kselftest/arm64: Fix validatation termination record after EXTRA_CONTEXT kselftest/arm64: Validate signal ucontext in place ...
2022-09-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski4-11/+16
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-29kselftest/arm64: Handle EINTR while reading data from childrenMark Brown1-35/+50
Currently we treat any error when reading from the child as a failure and don't read any more output from that child as a result. This ignores the fact that it is valid for read() to return EINTR as the error code if there is a signal pending so we could stop handling the output of children, especially during exit when we will get some SIGCHLD signals delivered to us. Fix this by pulling the read handling out into a separate function which returns a flag if reads should be continued and wrapping it in a loop. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220921181345.618085-4-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-09-29kselftest/arm64: Flag fp-stress as exiting when we begin finishing upMark Brown1-0/+1
Once we have started exiting the termination handler will have the same effect as what we're already running so set the termination flag at that point. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220921181345.618085-3-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-09-29kselftest/arm64: Don't repeat termination handler for fp-stressMark Brown1-0/+4
When fp-stress gets a termination signal it sets a flag telling itself to exit and sends a termination signal to all the children. If the flag is set then don't bother repeating this process, it isn't going to accomplish anything other than consume CPU time which can be an issue when running in emulation. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220921181345.618085-2-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-09-29kselftest/arm64: Don't enable v8.5 for MTE selftest buildsMark Brown2-4/+3
Currently we set -march=armv8.5+memtag when building the MTE selftests, allowing the compiler to emit v8.5 and MTE instructions for anything it generates. This means that we may get code that will generate SIGILLs when run on older systems rather than skipping on non-MTE systems as should be the case. Most toolchains don't select any incompatible instructions but I have seen some reports which suggest that some may be appearing which do so. This is also potentially problematic in that if the compiler chooses to emit any MTE instructions for the C code it may interfere with the MTE usage we are trying to test. Since the only reason we are specifying this option is to allow us to assemble MTE instructions in mte_helper.S we can avoid these issues by moving to using a .arch directive there and adding the -march explicitly to the toolchain support check instead of the generic CFLAGS. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220928154517.173108-1-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-09-29selftests/bpf: Check -EBUSY for the recurred bpf_setsockopt(TCP_CONGESTION)Martin KaFai Lau2-8/+21
This patch changes the bpf_dctcp test to ensure the recurred bpf_setsockopt(TCP_CONGESTION) returns -EBUSY. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20220929070407.965581-6-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-29Merge tag 'net-6.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds1-1/+1
Pull networking fixes from Paolo Abeni: "Including fixes from wifi and can. Current release - regressions: - phy: don't WARN for PHY_UP state in mdio_bus_phy_resume() - wifi: fix locking in mac80211 mlme - eth: - revert "net: mvpp2: debugfs: fix memory leak when using debugfs_lookup()" - mlxbf_gige: fix an IS_ERR() vs NULL bug in mlxbf_gige_mdio_probe Previous releases - regressions: - wifi: fix regression with non-QoS drivers Previous releases - always broken: - mptcp: fix unreleased socket in accept queue - wifi: - don't start TX with fq->lock to fix deadlock - fix memory corruption in minstrel_ht_update_rates() - eth: - macb: fix ZynqMP SGMII non-wakeup source resume failure - mt7531: only do PLL once after the reset - usbnet: fix memory leak in usbnet_disconnect() Misc: - usb: qmi_wwan: add new usb-id for Dell branded EM7455" * tag 'net-6.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (30 commits) mptcp: fix unreleased socket in accept queue mptcp: factor out __mptcp_close() without socket lock net: ethernet: mtk_eth_soc: fix mask of RX_DMA_GET_SPORT{,_V2} net: mscc: ocelot: fix tagged VLAN refusal while under a VLAN-unaware bridge can: c_can: don't cache TX messages for C_CAN cores ice: xsk: drop power of 2 ring size restriction for AF_XDP ice: xsk: change batched Tx descriptor cleaning net: usb: qmi_wwan: Add new usb-id for Dell branded EM7455 selftests: Fix the if conditions of in test_extra_filter() net: phy: Don't WARN for PHY_UP state in mdio_bus_phy_resume() net: stmmac: power up/down serdes in stmmac_open/release wifi: mac80211: mlme: Fix double unlock on assoc success handling wifi: mac80211: mlme: Fix missing unlock on beacon RX wifi: mac80211: fix memory corruption in minstrel_ht_update_rates() wifi: mac80211: fix regression with non-QoS drivers wifi: mac80211: ensure vif queues are operational after start wifi: mac80211: don't start TX with fq->lock to fix deadlock wifi: cfg80211: fix MCS divisor value net: hippi: Add missing pci_disable_device() in rr_init_one() net/mlxbf_gige: Fix an IS_ERR() vs NULL bug in mlxbf_gige_mdio_probe ...
2022-09-29tracing/user_events: Use bits vs bytes for enabled status page dataBeau Belgrave2-11/+47
User processes may require many events and when they do the cache performance of a byte index status check is less ideal than a bit index. The previous event limit per-page was 4096, the new limit is 32,768. This change adds a bitwise index to the user_reg struct. Programs check that the bit at status_bit has a bit set within the status page(s). Link: https://lkml.kernel.org/r/20220728233309.1896-6-beaub@linux.microsoft.com Link: https://lore.kernel.org/all/2059213643.196683.1648499088753.JavaMail.zimbra@efficios.com/ Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-09-29KVM: selftests: dirty-log: Use KVM_CAP_DIRTY_LOG_RING_ACQ_REL if availableMarc Zyngier2-2/+6
Pick KVM_CAP_DIRTY_LOG_RING_ACQ_REL if exposed by the kernel. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/20220926145120.27974-7-maz@kernel.org
2022-09-29KVM: selftests: dirty-log: Upgrade flag accesses to acquire/release semanticsMarc Zyngier1-2/+3
In order to preserve ordering, make sure that the flag accesses in the dirty log are done using acquire/release accessors. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/20220926145120.27974-6-maz@kernel.org
2022-09-28selftests/bpf: Convert udp_limit test to ASSERT_* macrosWang Yufen1-11/+7
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-12-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert tcpbpf_user test to ASSERT_* macrosWang Yufen1-20/+12
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-11-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert tcp_rtt test to ASSERT_* macrosWang Yufen1-8/+5
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-10-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert tcp_hdr_options test to ASSERT_* macrosWang Yufen1-52/+28
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-9-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert tcp_estats test to ASSERT_* macrosWang Yufen1-3/+1
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-8-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockopt_sk test to ASSERT_* macrosWang Yufen1-1/+1
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-7-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockopt_multi test to ASSERT_* macrosWang Yufen1-5/+5
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-6-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockopt_inherit test to ASSERT_* macrosWang Yufen1-17/+13
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-5-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockopt test to ASSERT_* macrosWang Yufen1-2/+2
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-4-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockmap_ktls test to ASSERT_* macrosWang Yufen1-29/+10
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-3-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Convert sockmap_basic test to ASSERT_* macrosWang Yufen1-54/+33
Convert the selftest to use the preferred ASSERT_* macros instead of the deprecated CHECK(). Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1664169131-32405-2-git-send-email-wangyufen@huawei.com
2022-09-28selftests/bpf: Test parameterized task BPF iterators.Kui-Feng Lee6-24/+322
Test iterators of vma, files and tasks. Ensure the API works appropriately to visit all tasks, tasks in a process, or a particular task. Signed-off-by: Kui-Feng Lee <kuifeng@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20220926184957.208194-5-kuifeng@fb.com
2022-09-28KVM: selftests: Don't set reserved bits for invalid Hyper-V hypercall numberVitaly Kuznetsov1-1/+1
Bits 27 through 31 in Hyper-V hypercall 'control' are reserved (see HV_HYPERCALL_RSVD0_MASK) but '0xdeadbeef' includes them. This causes KVM to return HV_STATUS_INVALID_HYPERCALL_INPUT instead of the expected HV_STATUS_INVALID_HYPERCALL_CODE. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/all/87fsgjol20.fsf@redhat.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2022-09-28KVM: selftests: Load RAX with -EFAULT before Hyper-V hypercallVipin Sharma1-1/+2
Load RAX with -EFAULT prior to making a Hyper-V hypercall so that tests can't get false negatives due to the compiler coincidentally loading the "right" value into RAX, i.e. to ensure that _KVM_ and not the compiler is correctly clearing RAX on a successful hypercall. Note, initializing *hv_status (in C code) to -EFAULT is not sufficient to avoid false negatives, as the compiler can still "clobber" RAX and thus load garbage into *hv_status if the hypercall faults (or if KVM doesn't set RAX). Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Vipin Sharma <vipinsh@google.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20220922062451.2927010-1-vipinsh@google.com [sean: move to separate patch, massage changelog] Signed-off-by: Sean Christopherson <seanjc@google.com>
2022-09-28KVM: selftests: Check result in hyperv_features for successful hypercallsVipin Sharma1-4/+4
Commit cc5851c6be86 ("KVM: selftests: Use exception fixup for #UD/#GP Hyper-V MSR/hcall tests") introduced a wrong guest assert in guest_hcall(). It is not checking the successful hypercall results and only checks the result when a fault happens. GUEST_ASSERT_2(!hcall->ud_expected || res == hcall->expect, hcall->expect, res); Correct the assertion by only checking results of the successful hypercalls. This issue was observed when this test started failing after building it in Clang. Above guest assert statement fails because "res" is not equal to "hcall->expect" when "hcall->ud_expected" is true. "res" gets some garbage value in Clang from the RAX register. In GCC, RAX is 0 because it using RAX for @output_address in the asm statement and resetting it to 0 before using it as output operand in the same asm statement. Clang is not using RAX for @output_address. Fixes: cc5851c6be86 ("KVM: selftests: Use exception fixup for #UD/#GP Hyper-V MSR/hcall tests") Signed-off-by: Vipin Sharma <vipinsh@google.com> Suggested-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20220922062451.2927010-1-vipinsh@google.com [sean: wrap changelog at ~75 chars, move -EFAULT change to separate patch] Signed-off-by: Sean Christopherson <seanjc@google.com>
2022-09-28KVM: selftests: Update top-of-file comment in psci_testOliver Upton1-4/+6
Fix the comment to accurately describe the test and recently added SYSTEM_SUSPEND test case. What was once psci_cpu_on_test was renamed and extended to squeeze in a test case for PSCI SYSTEM_SUSPEND. Nonetheless, the author of those changes (whoever they may be...) failed to update the file comment to reflect what had changed. Reported-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220819162100.213854-1-oliver.upton@linux.dev
2022-09-28selftests/powerpc: Update bhrb filter sampling test for multiple branch filtersAthira Rajeev1-0/+9
For PERF_SAMPLE_BRANCH_STACK sample type, different branch_sample_type, ie branch filters are supported. The testcase "bhrb_filter_map_test" tests the valid and invalid filter maps in different powerpc platforms. Update this testcase to include scenario to cover multiple branch filters at sametime. Since powerpc doesn't support multiple filters at sametime, expect failure during perf_event_open. Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com> Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220921145255.20972-3-atrajeev@linux.vnet.ibm.com
2022-09-28selftests/tc-testing: add selftests for teql qdiscZhengchao Shao2-0/+98
Test 84a0: Create TEQL with default setting Test 7734: Create TEQL with multiple device Test 34a9: Delete TEQL with valid handle Test 6289: Show TEQL stats Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for tbf qdiscZhengchao Shao2-0/+212
Test 6430: Create TBF with default setting Test 0518: Create TBF with mtu setting Test 320a: Create TBF with peakrate setting Test 239b: Create TBF with latency setting Test c975: Create TBF with overhead setting Test 948c: Create TBF with linklayer setting Test 3549: Replace TBF with mtu Test f948: Change TBF with latency time Test 2348: Show TBF class Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for taprio qdiscZhengchao Shao2-0/+136
Test ba39: Add taprio Qdisc to multi-queue device (8 queues) Test 9462: Add taprio Qdisc with multiple sched-entry Test 8d92: Add taprio Qdisc with txtime-delay Test d092: Delete taprio Qdisc with valid handle Test 8471: Show taprio class Test 0a85: Add taprio Qdisc to single-queue device Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for skbprio qdiscZhengchao Shao2-0/+96
Test 283e: Create skbprio with default setting Test c086: Create skbprio with limit setting Test 6733: Change skbprio with limit setting Test 2958: Show skbprio class Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for sfq qdiscZhengchao Shao2-0/+233
Test 7482: Create SFQ with default setting Test c186: Create SFQ with limit setting Test ae23: Create SFQ with perturb setting Test a430: Create SFQ with quantum setting Test 4539: Create SFQ with divisor setting Test b089: Create SFQ with flows setting Test 99a0: Create SFQ with depth setting Test 7389: Create SFQ with headdrop setting Test 6472: Create SFQ with redflowlimit setting Test 8929: Show SFQ class Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for sfb qdiscZhengchao Shao2-0/+280
Test 3294: Create SFB with default setting Test 430a: Create SFB with rehash setting Test 3410: Create SFB with db setting Test 49a0: Create SFB with limit setting Test 1241: Create SFB with max setting Test 3249: Create SFB with target setting Test 30a9: Create SFB with increment setting Test 239a: Create SFB with decrement setting Test 9301: Create SFB with penalty_rate setting Test 2a01: Create SFB with penalty_burst setting Test 3209: Change SFB with rehash setting Test 5447: Show SFB class Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for plug qdiscZhengchao Shao2-0/+189
Test 3289: Create PLUG with default setting Test 0917: Create PLUG with block setting Test 483b: Create PLUG with release setting Test 4995: Create PLUG with release_indefinite setting Test 389c: Create PLUG with limit setting Test 384a: Delete PLUG with valid handle Test 439a: Replace PLUG with limit setting Test 9831: Change PLUG with limit setting Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for pfifo_fast qdiscZhengchao Shao1-0/+119
Test 900c: Create pfifo_fast with default setting Test 7470: Dump pfifo_fast stats Test b974: Replace pfifo_fast with different handle Test 3240: Delete pfifo_fast with valid handle Test 4385: Delete pfifo_fast with invalid handle Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-28selftests/tc-testing: add selftests for hhf qdiscZhengchao Shao2-0/+211
Test 4812: Create HHF with default setting Test 8a92: Create HHF with limit setting Test 3491: Create HHF with quantum setting Test ba04: Create HHF with reset_timeout setting Test 4238: Create HHF with admit_bytes setting Test 839f: Create HHF with evict_timeout setting Test a044: Create HHF with non_hh_weight setting Test 32f9: Change HHF with limit setting Test 385e: Show HHF class Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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