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2020-11-24selftests/x86: Add missing .note.GNU-stack sectionsAndy Lutomirski2-0/+4
Several of the x86 selftests end up with executable stacks because the asm was missing the annotation that says that they are modern and don't need executable stacks. Add the annotations. Signed-off-by: Andy Lutomirski <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Link: https://lkml.kernel.org/r/6f043c03e9e0e4557e1e975a63b07a4d18965a68.1604346596.git.luto@kernel.org
2020-11-24selftests/x86/fsgsbase: Fix GS == 1, 2, and 3 testsAndy Lutomirski1-2/+10
Setting GS to 1, 2, or 3 causes a nonsensical part of the IRET microcode to change GS back to zero on a return from kernel mode to user mode. The result is that these tests fail randomly depending on when interrupts happen. Detect when this happens and let the test pass. Signed-off-by: Andy Lutomirski <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Link: https://lkml.kernel.org/r/7567fd44a1d60a9424f25b19a998f12149993b0d.1604346596.git.luto@kernel.org
2020-11-23tools/testing/scatterlist: Test dynamic __sg_alloc_table_from_pagesMaor Gottlieb1-23/+41
Add few cases to test the dynamic allocation flow of __sg_alloc_table_from_pages. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-11-23Merge 5.10-rc5 into staging-testingGreg Kroah-Hartman92-486/+3219
We want the staging/IIO fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-11-21Merge tag 'seccomp-v5.10-rc5' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp fixes from Kees Cook: "This gets the seccomp selftests running again on powerpc and sh, and fixes an audit reporting oversight noticed in both seccomp and ptrace. - Fix typos in seccomp selftests on powerpc and sh (Kees Cook) - Fix PF_SUPERPRIV audit marking in seccomp and ptrace (Mickaël Salaün)" * tag 'seccomp-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: sh: Fix register names selftests/seccomp: powerpc: Fix typo in macro variable name seccomp: Set PF_SUPERPRIV when checking capability ptrace: Set PF_SUPERPRIV when checking capability
2020-11-20selftests: mptcp: add ADD_ADDR IPv6 test casesGeliang Tang1-1/+69
This patch added IPv6 support for do_transfer, and the test cases for ADD_ADDR IPv6. Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Geliang Tang <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: mptcp: add link failure test caseFlorian Westphal1-22/+82
Add a test case where a link fails with multiple subflows. The expectation is that MPTCP will transmit any data that could not be delivered via the failed link on another subflow. Co-developed-by: Geliang Tang <[email protected]> Signed-off-by: Geliang Tang <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: forwarding: Add multipath tunneling nexthop testIdo Schimmel1-0/+356
Add a nexthop objects version of gre_multipath.sh. Unlike the original test, it also tests IPv6 overlay which is not possible with the legacy nexthop implementation. See commit 9a2ad3623868 ("selftests: forwarding: gre_multipath: Drop IPv6 tests") for more info. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: forwarding: Add device-only nexthop testIdo Schimmel1-0/+160
In a similar fashion to router_multipath.sh and its nexthop objects version router_mpath_nh.sh, create a nexthop objects version of router.sh. It reuses the same topology, but uses device-only nexthop objects instead of legacy ones. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: forwarding: Test IPv4 routes with IPv6 link-local nexthopsIdo Schimmel1-0/+11
In addition to IPv4 multipath tests with IPv4 nexthops, also test IPv4 multipath with nexthops that use IPv6 link-local addresses. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: forwarding: Do not configure nexthop objects twiceIdo Schimmel1-1/+0
routing_nh_obj() is used to configure the nexthop objects employed by the test, but it is called twice resulting in "RTNETLINK answers: File exists" messages. Remove the first call, so that the function is only called after setup_wait(), when all the interfaces are up and ready. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: mlxsw: Add nexthop objects configuration testsIdo Schimmel1-0/+189
Test that unsupported nexthop objects are rejected and that offload indication is correctly set on: nexthop objects, nexthop group objects and routes associated these objects. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: add ring and coalesce selftestsAntonio Cardace2-0/+217
Add scripts to test ring and coalesce settings of netdevsim. Signed-off-by: Antonio Cardace <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: refactor get_netdev_name functionAntonio Cardace1-18/+2
As pointed out by Michal Kubecek, getting the name with the previous approach was racy, it's better and easier to get the name of the device with this patch's approach. Essentialy the function doesn't need to exist anymore as it's a simple 'ls' command. Signed-off-by: Antonio Cardace <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20selftests: extract common functions in ethtool-common.shAntonio Cardace2-61/+71
Factor out some useful functions so that they can be reused by other ethtool-netdevsim scripts. Signed-off-by: Antonio Cardace <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-20Merge branch 'for-linus/seccomp' into for-next/seccompKees Cook1-4/+4
2020-11-20selftests/seccomp: Compare bitmap vs filter overheadKees Cook2-23/+130
As part of the seccomp benchmarking, include the expectations with regard to the timing behavior of the constant action bitmaps, and report inconsistencies better. Example output with constant action bitmaps on x86: $ sudo ./seccomp_benchmark 100000000 Current BPF sysctl settings: net.core.bpf_jit_enable = 1 net.core.bpf_jit_harden = 0 Benchmarking 200000000 syscalls... 129.359381409 - 0.008724424 = 129350656985 (129.4s) getpid native: 646 ns 264.385890006 - 129.360453229 = 135025436777 (135.0s) getpid RET_ALLOW 1 filter (bitmap): 675 ns 399.400511893 - 264.387045901 = 135013465992 (135.0s) getpid RET_ALLOW 2 filters (bitmap): 675 ns 545.872866260 - 399.401718327 = 146471147933 (146.5s) getpid RET_ALLOW 3 filters (full): 732 ns 696.337101319 - 545.874097681 = 150463003638 (150.5s) getpid RET_ALLOW 4 filters (full): 752 ns Estimated total seccomp overhead for 1 bitmapped filter: 29 ns Estimated total seccomp overhead for 2 bitmapped filters: 29 ns Estimated total seccomp overhead for 3 full filters: 86 ns Estimated total seccomp overhead for 4 full filters: 106 ns Estimated seccomp entry overhead: 29 ns Estimated seccomp per-filter overhead (last 2 diff): 20 ns Estimated seccomp per-filter overhead (filters / 4): 19 ns Expectations: native ≤ 1 bitmap (646 ≤ 675): ✔️ native ≤ 1 filter (646 ≤ 732): ✔️ per-filter (last 2 diff) ≈ per-filter (filters / 4) (20 ≈ 19): ✔️ 1 bitmapped ≈ 2 bitmapped (29 ≈ 29): ✔️ entry ≈ 1 bitmapped (29 ≈ 29): ✔️ entry ≈ 2 bitmapped (29 ≈ 29): ✔️ native + entry + (per filter * 4) ≈ 4 filters total (755 ≈ 752): ✔️ [YiFei: Changed commit message to show stats for this patch series] Signed-off-by: Kees Cook <[email protected]> Link: https://lore.kernel.org/r/1b61df3db85c5f7f1b9202722c45e7b39df73ef2.1602431034.git.yifeifz2@illinois.edu
2020-11-20selftests/seccomp: sh: Fix register namesKees Cook1-2/+2
It looks like the seccomp selftests was never actually built for sh. This fixes it, though I don't have an environment to do a runtime test of it yet. Fixes: 0bb605c2c7f2b4b3 ("sh: Add SECCOMP_FILTER") Tested-by: John Paul Adrian Glaubitz <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Signed-off-by: Kees Cook <[email protected]>
2020-11-20selftests/seccomp: powerpc: Fix typo in macro variable nameKees Cook1-2/+2
A typo sneaked into the powerpc selftest. Fix the name so it builds again. Fixes: 46138329faea ("selftests/seccomp: powerpc: Fix seccomp return value testing") Acked-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Signed-off-by: Kees Cook <[email protected]>
2020-11-19Merge branches 'cpuinfo.2020.11.06a', 'doc.2020.11.06a', ↵Paul E. McKenney14-23/+75
'fixes.2020.11.19b', 'lockdep.2020.11.02a', 'tasks.2020.11.06a' and 'torture.2020.11.06a' into HEAD cpuinfo.2020.11.06a: Speedups for /proc/cpuinfo. doc.2020.11.06a: Documentation updates. fixes.2020.11.19b: Miscellaneous fixes. lockdep.2020.11.02a: Lockdep-RCU updates to avoid "unused variable". tasks.2020.11.06a: Tasks-RCU updates. torture.2020.11.06a': Torture-test updates.
2020-11-19Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski21-108/+477
Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-19Merge tag 'net-5.10-rc5' of ↵Linus Torvalds7-1/+145
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.10-rc5, including fixes from the WiFi (mac80211), can and bpf (including the strncpy_from_user fix). Current release - regressions: - mac80211: fix memory leak of filtered powersave frames - mac80211: free sta in sta_info_insert_finish() on errors to avoid sleeping in atomic context - netlabel: fix an uninitialized variable warning added in -rc4 Previous release - regressions: - vsock: forward all packets to the host when no H2G is registered, un-breaking AWS Nitro Enclaves - net: Exempt multicast addresses from five-second neighbor lifetime requirement, decreasing the chances neighbor tables fill up - net/tls: fix corrupted data in recvmsg - qed: fix ILT configuration of SRC block - can: m_can: process interrupt only when not runtime suspended Previous release - always broken: - page_frag: Recover from memory pressure by not recycling pages allocating from the reserves - strncpy_from_user: Mask out bytes after NUL terminator - ip_tunnels: Set tunnel option flag only when tunnel metadata is present, always setting it confuses Open vSwitch - bpf, sockmap: - Fix partial copy_page_to_iter so progress can still be made - Fix socket memory accounting and obeying SO_RCVBUF - net: Have netpoll bring-up DSA management interface - net: bridge: add missing counters to ndo_get_stats64 callback - tcp: brr: only postpone PROBE_RTT if RTT is < current min_rtt - enetc: Workaround MDIO register access HW bug - net/ncsi: move netlink family registration to a subsystem init, instead of tying it to driver probe - net: ftgmac100: unregister NC-SI when removing driver to avoid crash - lan743x: - prevent interrupt storm on open - fix freeing skbs in the wrong context - net/mlx5e: Fix socket refcount leak on kTLS RX resync - net: dsa: mv88e6xxx: Avoid VLAN database corruption on 6097 - fix 21 unset return codes and other mistakes on error paths, mostly detected by the Hulk Robot" * tag 'net-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (115 commits) fail_function: Remove a redundant mutex unlock selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL lib/strncpy_from_user.c: Mask out bytes after NUL terminator. net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() net/smc: fix matching of existing link groups ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module libbpf: Fix VERSIONED_SYM_COUNT number parsing net/mlx4_core: Fix init_hca fields offset atm: nicstar: Unmap DMA on send error page_frag: Recover from memory pressure net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset mlxsw: core: Use variable timeout for EMAD retries mlxsw: Fix firmware flashing net: Have netpoll bring-up DSA management interface atl1e: fix error return code in atl1e_probe() atl1c: fix error return code in atl1c_probe() ah6: fix error return code in ah6_input() net: usb: qmi_wwan: Set DTR quirk for MR400 can: m_can: process interrupt only when not runtime suspended can: flexcan: flexcan_chip_start(): fix erroneous flexcan_transceiver_enable() during bus-off recovery ...
2020-11-19Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds2-2/+3
Pull rdma fixes from Jason Gunthorpe: "The last two weeks have been quiet here, just the usual smattering of long standing bug fixes. A collection of error case bug fixes: - Improper nesting of spinlock types in cm - Missing error codes and kfree() - Ensure dma_virt_ops users have the right kconfig symbols to work properly - Compilation failure of tools/testing" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: tools/testing/scatterlist: Fix test to compile and run IB/hfi1: Fix error return code in hfi1_init_dd() RMDA/sw: Don't allow drivers using dma_virt_ops on highmem configs RDMA/pvrdma: Fix missing kfree() in pvrdma_register_device() RDMA/cm: Make the local_id_table xarray non-irq
2020-11-19Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski7-1/+145
Alexei Starovoitov says: ==================== 1) libbpf should not attempt to load unused subprogs, from Andrii. 2) Make strncpy_from_user() mask out bytes after NUL terminator, from Daniel. 3) Relax return code check for subprograms in the BPF verifier, from Dmitrii. 4) Fix several sockmap issues, from John. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: fail_function: Remove a redundant mutex unlock selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL lib/strncpy_from_user.c: Mask out bytes after NUL terminator. libbpf: Fix VERSIONED_SYM_COUNT number parsing bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list bpf, sockmap: Handle memory acct if skb_verdict prog redirects to self bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self bpf, sockmap: Use truesize with sk_rmem_schedule() bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect bpf, sockmap: Fix partial copy_page_to_iter so progress can still be made selftests/bpf: Fix error return code in run_getsockopt_test() bpf: Relax return code check for subprograms tools, bpftool: Add missing close before bpftool net attach exit MAINTAINERS/bpf: Update Andrii's entry. selftests/bpf: Fix unused attribute usage in subprogs_unused test bpf: Fix unsigned 'datasec_id' compared with zero in check_pseudo_btf_id bpf: Fix passing zero to PTR_ERR() in bpf_btf_printf_prepare libbpf: Don't attempt to load unused subprog as an entry-point BPF program ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2020-11-19selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NULDaniel Xu2-0/+96
Previously, bpf_probe_read_user_str() could potentially overcopy the trailing bytes after the NUL due to how do_strncpy_from_user() does the copy in long-sized strides. The issue has been fixed in the previous commit. This commit adds a selftest that ensures we don't regress bpf_probe_read_user_str() again. Signed-off-by: Daniel Xu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Song Liu <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/4d977508fab4ec5b7b574b85bdf8b398868b6ee9.1605642949.git.dxu@dxuuu.xyz
2020-11-19Merge tag 'powerpc-cve-2020-4788' of ↵Linus Torvalds7-67/+265
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Fixes for CVE-2020-4788. From Daniel's cover letter: IBM Power9 processors can speculatively operate on data in the L1 cache before it has been completely validated, via a way-prediction mechanism. It is not possible for an attacker to determine the contents of impermissible memory using this method, since these systems implement a combination of hardware and software security measures to prevent scenarios where protected data could be leaked. However these measures don't address the scenario where an attacker induces the operating system to speculatively execute instructions using data that the attacker controls. This can be used for example to speculatively bypass "kernel user access prevention" techniques, as discovered by Anthony Steinhauser of Google's Safeside Project. This is not an attack by itself, but there is a possibility it could be used in conjunction with side-channels or other weaknesses in the privileged code to construct an attack. This issue can be mitigated by flushing the L1 cache between privilege boundaries of concern. This patch series flushes the L1 cache on kernel entry (patch 2) and after the kernel performs any user accesses (patch 3). It also adds a self-test and performs some related cleanups" * tag 'powerpc-cve-2020-4788' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: rename pnv|pseries_setup_rfi_flush to _setup_security_mitigations selftests/powerpc: refactor entry and rfi_flush tests selftests/powerpc: entry flush test powerpc: Only include kup-radix.h for 64-bit Book3S powerpc/64s: flush L1D after user accesses powerpc/64s: flush L1D on kernel entry selftests/powerpc: rfi_flush: disable entry flush if present
2020-11-19selftests/powerpc: refactor entry and rfi_flush testsDaniel Axtens6-120/+96
For simplicity in backporting, the original entry_flush test contained a lot of duplicated code from the rfi_flush test. De-duplicate that code. Signed-off-by: Daniel Axtens <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
2020-11-19selftests/powerpc: entry flush testDaniel Axtens3-1/+200
Add a test modelled on the RFI flush test which counts the number of L1D misses doing a simple syscall with the entry flush on and off. For simplicity of backporting, this test duplicates a lot of code from rfi_flush. We clean that up in the next patch. Signed-off-by: Daniel Axtens <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
2020-11-19selftests/powerpc: rfi_flush: disable entry flush if presentRussell Currey1-6/+29
We are about to add an entry flush. The rfi (exit) flush test measures the number of L1D flushes over a syscall with the RFI flush enabled and disabled. But if the entry flush is also enabled, the effect of enabling and disabling the RFI flush is masked. If there is a debugfs entry for the entry flush, disable it during the RFI flush and restore it later. Reported-by: Spoorthy S <[email protected]> Signed-off-by: Russell Currey <[email protected]> Signed-off-by: Daniel Axtens <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
2020-11-19selftests/powerpc/eeh: disable kselftest timeout setting for eeh-basicPo-Hsu Lin2-1/+2
The eeh-basic test got its own 60 seconds timeout (defined in commit 414f50434aa2 "selftests/eeh: Bump EEH wait time to 60s") per breakable device. And we have discovered that the number of breakable devices varies on different hardware. The device recovery time ranges from 0 to 35 seconds. In our test pool it will take about 30 seconds to run on a Power8 system that with 5 breakable devices, 60 seconds to run on a Power9 system that with 4 breakable devices. Extend the timeout setting in the kselftest framework to 5 minutes to give it a chance to finish. Signed-off-by: Po-Hsu Lin <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-11-18selftests/bpf: Mark tests that require unaligned memory accessBjörn Töpel7-18/+52
A lot of tests require unaligned memory access to work. Mark the tests as such, so that they can be avoided on unsupported architectures such as RISC-V. Signed-off-by: Björn Töpel <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Luke Nelson <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-18selftests/bpf: Avoid running unprivileged tests with alignment requirementsBjörn Töpel1-0/+13
Some architectures have strict alignment requirements. In that case, the BPF verifier detects if a program has unaligned accesses and rejects them. A user can pass BPF_F_ANY_ALIGNMENT to a program to override this check. That, however, will only work when a privileged user loads a program. An unprivileged user loading a program with this flag will be rejected prior entering the verifier. Hence, it does not make sense to load unprivileged programs without strict alignment when testing the verifier. This patch avoids exactly that. Signed-off-by: Björn Töpel <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Luke Nelson <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-18selftests/bpf: Fix broken riscv buildBjörn Töpel1-1/+2
The selftests/bpf Makefile includes system include directories from the host, when building BPF programs. On RISC-V glibc requires that __riscv_xlen is defined. This is not the case for "clang -target bpf", which messes up __WORDSIZE (errno.h -> ... -> wordsize.h) and breaks the build. By explicitly defining __risc_xlen correctly for riscv, we can workaround this. Fixes: 167381f3eac0 ("selftests/bpf: Makefile fix "missing" headers on build with -idirafter") Signed-off-by: Björn Töpel <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Luke Nelson <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-18Merge tag 'linux-kselftest-kunit-fixes-5.10-rc5' of ↵Linus Torvalds5-38/+64
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kunit fixes from Shuah Khan: "Several fixes to Kunit documentation and tools, and to not pollute the source directory. Also remove the incorrect kunit .gitattributes file" * tag 'linux-kselftest-kunit-fixes-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: fix display of failed expectations for strings kunit: tool: fix extra trailing \n in raw + parsed test output kunit: tool: print out stderr from make (like build warnings) KUnit: Docs: usage: wording fixes KUnit: Docs: style: fix some Kconfig example issues KUnit: Docs: fix a wording typo kunit: Do not pollute source directory with generated files (test.log) kunit: Do not pollute source directory with generated files (.kunitconfig) kunit: tool: fix pre-existing python type annotation errors kunit: Fix kunit.py parse subcommand (use null build_dir) kunit: tool: unmark test_data as binary blobs
2020-11-18selftests/sgx: Use a statically generated 3072-bit RSA keyJarkko Sakkinen5-23/+71
Use a statically generated key for signing the enclave, because generating keys on the fly can eat the kernel entropy pool. Another good reason for doing this is predictable builds. The RSA has been arbitrarily selected. It's contents do not matter. This also makes the selftest execute a lot quicker instead of the delay that it had before (because of slow key generation). [ bp: Disambiguate "static key" which means something else in the kernel, fix typos. ] Signed-off-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2020-11-18selftests/x86: Add a selftest for SGXJarkko Sakkinen12-0/+1222
Add a selftest for SGX. It is a trivial test where a simple enclave copies one 64-bit word of memory between two memory locations, but ensures that all SGX hardware and software infrastructure is functioning. Signed-off-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Acked-by: Jethro Beekman <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2020-11-18bpf: Add tests for bpf_bprm_opts_set helperKP Singh2-0/+150
The test forks a child process, updates the local storage to set/unset the securexec bit. The BPF program in the test attaches to bprm_creds_for_exec which checks the local storage of the current task to set the secureexec bit on the binary parameters (bprm). The child then execs a bash command with the environment variable TMPDIR set in the envp. The bash command returns a different exit code based on its observed value of the TMPDIR variable. Since TMPDIR is one of the variables that is ignored by the dynamic loader when the secureexec bit is set, one should expect the child execution to not see this value when the secureexec bit is set. Signed-off-by: KP Singh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Martin KaFai Lau <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-17tools/testing/scatterlist: Fix test to compile and runMaor Gottlieb2-2/+3
Add missing define of ALIGN_DOWN to make the test build and run. In addition, __sg_alloc_table_from_pages now support unaligned maximum segment, so adapt the test result accordingly. Fixes: 07da1223ec93 ("lib/scatterlist: Add support in dynamic allocation of SG table from pages") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Maor Gottlieb <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-11-16selftests/bpf: Fix error return code in run_getsockopt_test()Wang Hai1-1/+2
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 65b4414a05eb ("selftests/bpf: add sockopt test that exercises BPF_F_ALLOW_MULTI") Reported-by: Hulk Robot <[email protected]> Signed-off-by: Wang Hai <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-16KVM: selftests: x86: Set supported CPUIDs on default VMAndrew Jones18-26/+30
Almost all tests do this anyway and the ones that don't don't appear to care. Only vmx_set_nested_state_test assumes that a feature (VMX) is disabled until later setting the supported CPUIDs. It's better to disable that explicitly anyway. Signed-off-by: Andrew Jones <[email protected]> Message-Id: <[email protected]> [Restore CPUID_VMX, or vmx_set_nested_state breaks. - Paolo] Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-16KVM: selftests: Make test skipping consistentAndrew Jones3-10/+14
Signed-off-by: Andrew Jones <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-16selftest/bpf: Fix IPV6FR handling in flow dissectorSantucci Pierpaolo1-0/+2
From second fragment on, IPV6FR program must stop the dissection of IPV6 fragmented packet. This is the same approach used for IPV4 fragmentation. This fixes the flow keys calculation for the upper-layer protocols. Note that according to RFC8200, the first fragment packet must include the upper-layer header. Signed-off-by: Santucci Pierpaolo <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-11-15KVM: selftests: Also build dirty_log_perf_test on AArch64Andrew Jones1-0/+1
Signed-off-by: Andrew Jones <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: Introduce vm_create_[default_]_with_vcpusAndrew Jones2-5/+40
Introduce new vm_create variants that also takes a number of vcpus, an amount of per-vcpu pages, and optionally a list of vcpuids. These variants will create default VMs with enough additional pages to cover the vcpu stacks, per-vcpu pages, and pagetable pages for all. The new 'default' variant uses VM_MODE_DEFAULT, whereas the other new variant accepts the mode as a parameter. Reviewed-by: Peter Xu <[email protected]> Reviewed-by: Ben Gardon <[email protected]> Signed-off-by: Andrew Jones <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: Make vm_create_default commonAndrew Jones5-75/+45
The code is almost 100% the same anyway. Just move it to common and add a few arch-specific macros. Reviewed-by: Peter Xu <[email protected]> Reviewed-by: Ben Gardon <[email protected]> Signed-off-by: Andrew Jones <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: always use manual clear in dirty_log_perf_testPaolo Bonzini1-33/+22
Nothing sets USE_CLEAR_DIRTY_LOG anymore, so anything it surrounds is dead code. However, it is the recommended way to use the dirty page bitmap for new enough kernel, so use it whenever KVM has the KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 capability. Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15selftests: kvm: keep .gitignore add to datePaolo Bonzini1-3/+3
Add tsc_msrs_test, remove clear_dirty_log_test and alphabetize everything. Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: Add "-c" parameter to dirty log testPeter Xu1-3/+10
It's only used to override the existing dirty ring size/count. If with a bigger ring count, we test async of dirty ring. If with a smaller ring count, we test ring full code path. Async is default. It has no use for non-dirty-ring tests. Reviewed-by: Andrew Jones <[email protected]> Signed-off-by: Peter Xu <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: Run dirty ring test asynchronouslyPeter Xu1-4/+60
Previously the dirty ring test was working in synchronous way, because only with a vmexit (with that it was the ring full event) we'll know the hardware dirty bits will be flushed to the dirty ring. With this patch we first introduce a vcpu kick mechanism using SIGUSR1, which guarantees a vmexit and also therefore the flushing of hardware dirty bits. Once this is in place, we can keep the vcpu dirty work asynchronous of the whole collection procedure now. Still, we need to be very careful that when reaching the ring buffer soft limit (KVM_EXIT_DIRTY_RING_FULL) we must collect the dirty bits before continuing the vcpu. Further increase the dirty ring size to current maximum to make sure we torture more on the no-ring-full case, which should be the major scenario when the hypervisors like QEMU would like to use this feature. Reviewed-by: Andrew Jones <[email protected]> Signed-off-by: Peter Xu <[email protected]> Message-Id: <[email protected]> [Use KVM_SET_SIGNAL_MASK+sigwait instead of a signal handler. - Paolo] Signed-off-by: Paolo Bonzini <[email protected]>
2020-11-15KVM: selftests: Add dirty ring buffer testPeter Xu4-13/+320
Add the initial dirty ring buffer test. The current test implements the userspace dirty ring collection, by only reaping the dirty ring when the ring is full. So it's still running synchronously like this: vcpu main thread 1. vcpu dirties pages 2. vcpu gets dirty ring full (userspace exit) 3. main thread waits until full (so hardware buffers flushed) 4. main thread collects 5. main thread continues vcpu 6. vcpu continues, goes back to 1 We can't directly collects dirty bits during vcpu execution because otherwise we can't guarantee the hardware dirty bits were flushed when we collect and we're very strict on the dirty bits so otherwise we can fail the future verify procedure. A follow up patch will make this test to support async just like the existing dirty log test, by adding a vcpu kick mechanism. Signed-off-by: Peter Xu <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
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