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2022-08-21asm goto: eradicate CC_HAS_ASM_GOTONick Desaulniers10-89/+7
GCC has supported asm goto since 4.5, and Clang has since version 9.0.0. The minimum supported versions of these tools for the build according to Documentation/process/changes.rst are 5.1 and 11.0.0 respectively. Remove the feature detection script, Kconfig option, and clean up some fallback code that is no longer supported. The removed script was also testing for a GCC specific bug that was fixed in the 4.7 release. Also remove workarounds for bpftrace using clang older than 9.0.0, since other BPF backend fixes are required at this point. Link: https://lore.kernel.org/lkml/CAK7LNATSr=BXKfkdW8f-H5VT_w=xBpT2ZQcZ7rm6JfkdE+QnmA@mail.gmail.com/ Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637 Acked-by: Borislav Petkov <bp@suse.de> Suggested-by: Masahiro Yamada <masahiroy@kernel.org> Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-21Merge tag 'kbuild-fixes-v6.0' of ↵Linus Torvalds5-9/+5
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix module versioning broken on some architectures - Make dummy-tools enable CONFIG_PPC_LONG_DOUBLE_128 - Remove -Wformat-zero-length, which has no warning instance - Fix the order between drivers and libs in modules.order - Fix false-positive warnings in clang-analyzer * tag 'kbuild-fixes-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: scripts/clang-tools: Remove DeprecatedOrUnsafeBufferHandling check kbuild: fix the modules order between drivers and libs scripts/Makefile.extrawarn: Do not disable clang's -Wformat-zero-length kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__ modpost: fix module versioning when a symbol lacks valid CRC
2022-08-21Merge tag 'perf-tools-fixes-for-v6.0-2022-08-19' of ↵Linus Torvalds27-235/+976
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix alignment for cpu map masks in event encoding. - Support reading PERF_FORMAT_LOST, perf tool counterpart for a feature that was added in this merge window. - Sync perf tools copies of kernel headers: socket, msr-index, fscrypt, cpufeatures, i915_drm, kvm, vhost, perf_event. * tag 'perf-tools-fixes-for-v6.0-2022-08-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf tools: Support reading PERF_FORMAT_LOST libperf: Add a test case for read formats libperf: Handle read format in perf_evsel__read() tools headers UAPI: Sync linux/perf_event.h with the kernel sources tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources tools headers UAPI: Sync KVM's vmx.h header with the kernel sources tools include UAPI: Sync linux/vhost.h with the kernel sources tools headers kvm s390: Sync headers with the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources tools headers UAPI: Sync drm/i915_drm.h with the kernel sources tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Sync linux/fscrypt.h with the kernel sources tools arch x86: Sync the msr-index.h copy with the kernel sources perf beauty: Update copy of linux/socket.h with the kernel sources perf cpumap: Fix alignment for masks in event encoding perf cpumap: Compute mask size in constant time perf cpumap: Synthetic events and const/static perf cpumap: Const map for max()
2022-08-20Merge tag 's390-6.0-1' of ↵Linus Torvalds4-2/+9
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Alexander Gordeev: - Fix a KVM crash on z12 and older machines caused by a wrong assumption that Query AP Configuration Information is always available. - Lower severity of excessive Hypervisor filesystem error messages when booting under KVM. * tag 's390-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/ap: fix crash on older machines based on QCI info missing s390/hypfs: avoid error message under KVM
2022-08-20Merge tag 'powerpc-6.0-3' of ↵Linus Torvalds3-10/+44
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix atomic sleep warnings at boot due to get_phb_number() taking a mutex with a spinlock held on some machines. - Add missing PMU selftests to .gitignores. Thanks to Guenter Roeck and Russell Currey. * tag 'powerpc-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Add missing PMU selftests to .gitignores powerpc/pci: Fix get_phb_number() locking
2022-08-20Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds7-40/+42
Pull rdma fixes from Jason Gunthorpe: "A few minor fixes: - Fix buffer management in SRP to correct a regression with the login authentication feature from v5.17 - Don't iterate over non-present ports in mlx5 - Fix an error introduced by the foritify work in cxgb4 - Two bug fixes for the recently merged ERDMA driver - Unbreak RDMA dmabuf support, a regresion from v5.19" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA: Handle the return code from dma_resv_wait_timeout() properly RDMA/erdma: Correct the max_qp and max_cq capacities of the device RDMA/erdma: Using the key in FMR WR instead of MR structure RDMA/cxgb4: fix accept failure due to increased cpl_t5_pass_accept_rpl size RDMA/mlx5: Use the proper number of ports IB/iser: Fix login with authentication
2022-08-20scripts/clang-tools: Remove DeprecatedOrUnsafeBufferHandling checkGuru Das Srinagesh1-0/+1
This `clang-analyzer` check flags the use of memset(), suggesting a more secure version of the API, such as memset_s(), which does not exist in the kernel: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling] Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-08-20kbuild: fix the modules order between drivers and libsMasahiro Yamada1-4/+2
Commit b2c885549122 ("kbuild: update modules.order only when contained modules are updated") accidentally changed the modules order. Prior to that commit, the modules order was determined based on vmlinux-dirs, which lists core-y/m, drivers-y/m, libs-y/m, in this order. Now, subdir-modorder lists them in a different order: core-y/m, libs-y/m, drivers-y/m. Presumably, there was no practical issue because the modules in drivers and libs are orthogonal, but there is no reason to have this distortion. Get back to the original order. Fixes: b2c885549122 ("kbuild: update modules.order only when contained modules are updated") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-08-20scripts/Makefile.extrawarn: Do not disable clang's -Wformat-zero-lengthNathan Chancellor1-1/+0
There are no instances of this warning in the tree across several difference architectures and configurations. This was added by commit 26ea6bb1fef0 ("kbuild, LLVMLinux: Supress warnings unless W=1-3") back in 2014, where it might have been necessary, but there are no instances of it now so stop disabling it to increase warning coverage for clang. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-08-20kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__Jiri Slaby1-1/+1
There is a test in powerpc's Kconfig which checks __LONG_DOUBLE_128__ and sets CONFIG_PPC_LONG_DOUBLE_128 if it is understood by the compiler. We currently don't handle it, so this results in PPC_LONG_DOUBLE_128 not being in super-config generated by dummy-tools. So take this into account in the gcc script and preprocess __LONG_DOUBLE_128__ as "1". Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-08-20modpost: fix module versioning when a symbol lacks valid CRCMasahiro Yamada1-3/+1
Since commit 7b4537199a4a ("kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS"), module versioning is broken on some architectures. Loading a module fails with "disagrees about version of symbol module_layout". On such architectures (e.g. ARCH=sparc build with sparc64_defconfig), modpost shows a warning, like follows: WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. Is "_mcount" prototyped in <asm/asm-prototypes.h>? Previously, it was a harmless warning (CRC check was just skipped), but now wrong CRCs are used for comparison because invalid CRCs are just skipped. $ sparc64-linux-gnu-nm -n vmlinux [snip] 0000000000c2cea0 r __ksymtab__kstrtol 0000000000c2ceb8 r __ksymtab__kstrtoul 0000000000c2ced0 r __ksymtab__local_bh_enable 0000000000c2cee8 r __ksymtab__mcount 0000000000c2cf00 r __ksymtab__printk 0000000000c2cf18 r __ksymtab__raw_read_lock 0000000000c2cf30 r __ksymtab__raw_read_lock_bh [snip] 0000000000c53b34 D __crc__kstrtol 0000000000c53b38 D __crc__kstrtoul 0000000000c53b3c D __crc__local_bh_enable 0000000000c53b40 D __crc__printk 0000000000c53b44 D __crc__raw_read_lock 0000000000c53b48 D __crc__raw_read_lock_bh Please notice __crc__mcount is missing here. When the module subsystem looks up a CRC that comes after, it results in reading out a wrong address. For example, when __crc__printk is needed, the module subsystem reads 0xc53b44 instead of 0xc53b40. All CRC entries must be output for correct index accessing. Invalid CRCs will be unused, but are needed to keep the one-to-one mapping between __ksymtab_* and __crc_*. The best is to fix all modpost warnings, but several warnings are still remaining on less popular architectures. Fixes: 7b4537199a4a ("kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS") Reported-by: matoro <matoro_mailinglist_kernel@matoro.tk> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: matoro <matoro_mailinglist_kernel@matoro.tk>
2022-08-20Merge tag 'block-6.0-2022-08-19' of git://git.kernel.dk/linux-blockLinus Torvalds3-28/+28
Pull block fixes from Jens Axboe: "A few fixes that should go into this release: - Small series of patches for ublk (ZiyangZhang) - Remove dead function (Yu) - Fix for running a block queue in case of resource starvation (Yufen)" * tag 'block-6.0-2022-08-19' of git://git.kernel.dk/linux-block: blk-mq: run queue no matter whether the request is the last request blk-mq: remove unused function blk_mq_queue_stopped() ublk_drv: do not add a re-issued request aborted previously to ioucmd's task_work ublk_drv: update comment for __ublk_fail_req() ublk_drv: check ubq_daemon_is_dying() in __ublk_rq_task_work() ublk_drv: update iod->addr for UBLK_IO_NEED_GET_DATA
2022-08-20Merge tag 'io_uring-6.0-2022-08-19' of git://git.kernel.dk/linux-blockLinus Torvalds2-12/+12
Pull io_uring fixes from Jens Axboe: "A few fixes for regressions in this cycle: - Two instances of using the wrong "has async data" helper (Pavel) - Fixup zero-copy address import (Pavel) - Bump zero-copy notification slot limit (Pavel)" * tag 'io_uring-6.0-2022-08-19' of git://git.kernel.dk/linux-block: io_uring/net: use right helpers for async_data io_uring/notif: raise limit on notification slots io_uring/net: improve zc addr import error handling io_uring/net: use right helpers for async recycle
2022-08-20Merge tag 'ata-6.0-rc2' of ↵Linus Torvalds2-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata Pull ATA fixes from Damien Le Moal: - Add a missing command name definition for ata_get_cmd_name(), from me. - A fix to address a performance regression due to the default max_sectors queue limit for ATA devices connected to AHCI adapters being too small, from John. * tag 'ata-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: libata: Set __ATA_BASE_SHT max_sectors ata: libata-eh: Add missing command name
2022-08-20Merge tag 'mmc-v6.0-rc1' of ↵Linus Torvalds4-6/+26
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - meson-gx: Fix error handling in ->probe() - mtk-sd: Fix a command problem when using cqe off/disable - pxamci: Fix error handling in ->probe() - sdhci-of-dwcmshc: Fix broken support for the BlueField-3 variant * tag 'mmc-v6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-of-dwcmshc: Re-enable support for the BlueField-3 SoC mmc: meson-gx: Fix an error handling path in meson_mmc_probe() mmc: mtk-sd: Clear interrupts when cqe off/disable mmc: pxamci: Fix another error handling path in pxamci_probe() mmc: pxamci: Fix an error handling path in pxamci_probe()
2022-08-20ata: libata: Set __ATA_BASE_SHT max_sectorsJohn Garry1-1/+2
Commit 0568e6122574 ("ata: libata-scsi: cap ata_device->max_sectors according to shost->max_sectors") inadvertently capped the max_sectors value for some SATA disks to a value which is lower than we would want. For a device which supports LBA48, we would previously have request queue max_sectors_kb and max_hw_sectors_kb values of 1280 and 32767 respectively. For AHCI controllers, the value chosen for shost max sectors comes from the minimum of the SCSI host default max sectors in SCSI_DEFAULT_MAX_SECTORS (1024) and the shost DMA device mapping limit. This means that we would now set the max_sectors_kb and max_hw_sectors_kb values for a disk which supports LBA48 at 512, ignoring DMA mapping limit. As report by Oliver at [0], this caused a performance regression. Fix by picking a large enough max sectors value for ATA host controllers such that we don't needlessly reduce max_sectors_kb for LBA48 disks. [0] https://lore.kernel.org/linux-ide/YvsGbidf3na5FpGb@xsang-OptiPlex-9020/T/#m22d9fc5ad15af66066dd9fecf3d50f1b1ef11da3 Fixes: 0568e6122574 ("ata: libata-scsi: cap ata_device->max_sectors according to shost->max_sectors") Reported-by: Oliver Sang <oliver.sang@intel.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-08-20Merge tag 'execve-v6.0-rc2' of ↵Linus Torvalds1-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull execve fix from Kees Cook: - Replace remaining kmap() uses with kmap_local_page() (Fabio M. De Francesco) * tag 'execve-v6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: exec: Replace kmap{,_atomic}() with kmap_local_page()
2022-08-19Merge tag 'hardening-v6.0-rc2' of ↵Linus Torvalds2-5/+3
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: - Also undef LATENT_ENTROPY_PLUGIN for per-file disabling (Andrew Donnellan) - Return EFAULT on copy_from_user() failures in LoadPin (Kees Cook) * tag 'hardening-v6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file LoadPin: Return EFAULT on copy_from_user() failures
2022-08-19Merge tag 'riscv-for-linus-6.0-rc2' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - A fix to make the ISA extension static keys writable after init. This manifests at least as a crash when loading modules (including KVM). - A fixup for a build warning related to a poorly formed comment in our perf driver. * tag 'riscv-for-linus-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: perf: riscv legacy: fix kerneldoc comment warning riscv: Ensure isa-ext static keys are writable
2022-08-19Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds25-156/+157
Pull kvm fixes from Paolo Bonzini: "ARM: - Fix unexpected sign extension of KVM_ARM_DEVICE_ID_MASK - Tidy-up handling of AArch32 on asymmetric systems x86: - Fix 'missing ENDBR' BUG for fastop functions Generic: - Some cleanup and static analyzer patches - More fixes to KVM_CREATE_VM unwind paths" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Drop unnecessary initialization of "ops" in kvm_ioctl_create_device() KVM: Drop unnecessary initialization of "npages" in hva_to_pfn_slow() x86/kvm: Fix "missing ENDBR" BUG for fastop functions x86/kvm: Simplify FOP_SETCC() x86/ibt, objtool: Add IBT_NOSEAL() KVM: Rename mmu_notifier_* to mmu_invalidate_* KVM: Rename KVM_PRIVATE_MEM_SLOTS to KVM_INTERNAL_MEM_SLOTS KVM: MIPS: remove unnecessary definition of KVM_PRIVATE_MEM_SLOTS KVM: Move coalesced MMIO initialization (back) into kvm_create_vm() KVM: Unconditionally get a ref to /dev/kvm module when creating a VM KVM: Properly unwind VM creation if creating debugfs fails KVM: arm64: Reject 32bit user PSTATE on asymmetric systems KVM: arm64: Treat PMCR_EL1.LC as RES1 on asymmetric systems KVM: arm64: Fix compile error due to sign extension
2022-08-19Merge tag 'for-6.0-rc1-tag' of ↵Linus Torvalds12-101/+176
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "A few short fixes and a lockdep warning fix (needs moving some code): - tree-log replay fixes: - fix error handling when looking up extent refs - fix warning when setting inode number of links - relocation fixes: - reset block group read-only status when relocation fails - unset control structure if transaction fails when starting to process a block group - add lockdep annotations to fix a warning during relocation where blocks temporarily belong to another tree and can lead to reversed dependencies - tree-checker verifies that extent items don't overlap" * tag 'for-6.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: tree-checker: check for overlapping extent items btrfs: fix warning during log replay when bumping inode link count btrfs: fix lost error handling when looking up extended ref on log replay btrfs: fix lockdep splat with reloc root extent buffers btrfs: move lockdep class helpers to locking.c btrfs: unset reloc control if transaction commit fails in prepare_to_relocate() btrfs: reset RO counter on block group if we fail to relocate
2022-08-19Merge tag '5.20-rc2-ksmbd-smb3-server-fixes' of git://git.samba.org/ksmbdLinus Torvalds5-21/+39
Pull ksmbd server fixes from Steve French: - important sparse file fix - allocation size fix - fix incorrect rc on bad share - share config fix * tag '5.20-rc2-ksmbd-smb3-server-fixes' of git://git.samba.org/ksmbd: ksmbd: don't remove dos attribute xattr on O_TRUNC open ksmbd: remove unnecessary generic_fillattr in smb2_open ksmbd: request update to stale share config ksmbd: return STATUS_BAD_NETWORK_NAME error status if share is not configured
2022-08-19perf tools: Support reading PERF_FORMAT_LOSTNamhyung Kim6-42/+108
The recent kernel added lost count can be read from either read(2) or ring buffer data with PERF_SAMPLE_READ. As it's a variable length data we need to access it according to the format info. But for perf tools use cases, PERF_FORMAT_ID is always set. So we can only check PERF_FORMAT_LOST bit to determine the data format. Add sample_read_value_size() and next_sample_read_value() helpers to make it a bit easier to access. Use them in all places where it reads the struct sample_read_value. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220819003644.508916-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19libperf: Add a test case for read formatsNamhyung Kim1-0/+161
It checks a various combination of the read format settings and verify it return the value in a proper position. The test uses task-clock software events to guarantee it's always active and sets enabled/running time. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220819003644.508916-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19libperf: Handle read format in perf_evsel__read()Namhyung Kim3-3/+83
The perf_counts_values should be increased to read the new lost data. Also adjust values after read according the read format. This supports PERF_FORMAT_GROUP which has a different data format but it's only available for leader events. Currently it doesn't have an API to read sibling (member) events in the group. But users may read the sibling event directly. Also reading from mmap would be disabled when the read format has ID or LOST bit as it's not exposed via mmap. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220819003644.508916-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync linux/perf_event.h with the kernel sourcesNamhyung Kim1-1/+4
To pick the trivial change in: 119a784c81270eb8 ("perf/core: Add a new read format to get a number of lost samples") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220819003644.508916-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync x86's asm/kvm.h with the kernel sourcesArnaldo Carvalho de Melo1-2/+8
To pick the changes in: 43bb9e000ea4c621 ("KVM: x86: Tweak name of MONITOR/MWAIT #UD quirk to make it #UD specific") 94dfc73e7cf4a31d ("treewide: uapi: Replace zero-length arrays with flexible-array members") bfbcc81bb82cbbad ("KVM: x86: Add a quirk for KVM's "MONITOR/MWAIT are NOPs!" behavior") b172862241b48499 ("KVM: x86: PIT: Preserve state of speaker port data bit") ed2351174e38ad4f ("KVM: x86: Extend KVM_{G,S}ET_VCPU_EVENTS to support pending triple fault") That just rebuilds kvm-stat.c on x86, no change in functionality. This silences these perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Cc: Chenyi Qiang <chenyi.qiang@intel.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Durrant <pdurrant@amazon.com> Link: https://lore.kernel.org/lkml/Yv6OMPKYqYSbUxwZ@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync KVM's vmx.h header with the kernel sourcesArnaldo Carvalho de Melo1-1/+3
To pick the changes in: 2f4073e08f4cc5a4 ("KVM: VMX: Enable Notify VM exit") That makes 'perf kvm-stat' aware of this new NOTIFY exit reason, thus addressing the following perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Tao Xu <tao3.xu@intel.com> Link: http://lore.kernel.org/lkml/Yv6LavXMZ+njijpq@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools include UAPI: Sync linux/vhost.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+9
To get the changes in: f345a0143b4dd1cf ("vhost-vdpa: uAPI to suspend the device") Silencing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h To pick up these changes and support them: $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after $ diff -u before after --- before 2022-08-18 09:46:12.355958316 -0300 +++ after 2022-08-18 09:46:19.701182822 -0300 @@ -29,6 +29,7 @@ [0x75] = "VDPA_SET_VRING_ENABLE", [0x77] = "VDPA_SET_CONFIG_CALL", [0x7C] = "VDPA_SET_GROUP_ASID", + [0x7D] = "VDPA_SUSPEND", }; = { [0x00] = "GET_FEATURES", $ For instance, see how those 'cmd' ioctl arguments get translated, now VDPA_SUSPEND will be as well: # perf trace -a -e ioctl --max-events=10 0.000 ( 0.011 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1) = 0 21.353 ( 0.014 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1) = 0 25.766 ( 0.014 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740) = 0 25.845 ( 0.034 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0 25.916 ( 0.011 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0) = 0 25.941 ( 0.025 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ATOMIC, arg: 0x7ffe4a22c840) = 0 32.915 ( 0.009 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_RMFB, arg: 0x7ffe4a22cf9c) = 0 42.522 ( 0.013 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740) = 0 42.579 ( 0.031 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0 42.644 ( 0.010 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Eugenio Pérez <eperezma@redhat.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/lkml/Yv6Kb4OESuNJuH6X@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers kvm s390: Sync headers with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
To pick the changes in: f5ecfee944934757 ("KVM: s390: resetting the Topology-Change-Report") None of them trigger any changes in tooling, this time this is just to silence these perf build warnings: Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h' diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Pierre Morel <pmorel@linux.ibm.com> Link: http://lore.kernel.org/lkml/YvzwMXzaIzOU4WAY@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+108
To pick the changes in: 8a061562e2f2b32b ("RISC-V: KVM: Add extensible CSR emulation framework") f5ecfee944934757 ("KVM: s390: resetting the Topology-Change-Report") 450a563924ae9437 ("KVM: stats: Fix value for KVM_STATS_UNIT_MAX for boolean stats") 1b870fa5573e260b ("kvm: stats: tell userspace which values are boolean") db1c875e0539518e ("KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices") 94dfc73e7cf4a31d ("treewide: uapi: Replace zero-length arrays with flexible-array members") 084cc29f8bbb034c ("KVM: x86/MMU: Allow NX huge pages to be disabled on a per-vm basis") 2f4073e08f4cc5a4 ("KVM: VMX: Enable Notify VM exit") ed2351174e38ad4f ("KVM: x86: Extend KVM_{G,S}ET_VCPU_EVENTS to support pending triple fault") e9bf3acb23f0a6e1 ("KVM: s390: Add KVM_CAP_S390_PROTECTED_DUMP") 8aba09588d2af37c ("KVM: s390: Add CPU dump functionality") 0460eb35b443f73f ("KVM: s390: Add configuration dump functionality") fe9a93e07ba4f29d ("KVM: s390: pv: Add query dump information") 35d02493dba1ae63 ("KVM: s390: pv: Add query interface") c24a950ec7d60c4d ("KVM, SEV: Add KVM_EXIT_SHUTDOWN metadata for SEV-ES") ffbb61d09fc56c85 ("KVM: x86: Accept KVM_[GS]ET_TSC_KHZ as a VM ioctl.") 661a20fab7d156cf ("KVM: x86/xen: Advertise and document KVM_XEN_HVM_CONFIG_EVTCHN_SEND") fde0451be8fb3208 ("KVM: x86/xen: Support per-vCPU event channel upcall via local APIC") 28d1629f751c4a5f ("KVM: x86/xen: Kernel acceleration for XENVER_version") 536395260582be74 ("KVM: x86/xen: handle PV timers oneshot mode") 942c2490c23f2800 ("KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID") 2fd6df2f2b47d430 ("KVM: x86/xen: intercept EVTCHNOP_send from guests") 35025735a79eaa89 ("KVM: x86/xen: Support direct injection of event channel events") That just rebuilds perf, as these patches add just an ioctl that is S390 specific and may clash with other arches, so are so far being excluded in the harvester script: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after $ grep 390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Anup Patel <anup@brainfault.org> Cc: Ben Gardon <bgardon@google.com> Cc: Chenyi Qiang <chenyi.qiang@intel.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: João Martins <joao.m.martins@oracle.com> Cc: Matthew Rosato <mjrosato@linux.ibm.com> Cc: Oliver Upton <oupton@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Gonda <pgonda@google.com> Cc: Pierre Morel <pmorel@linux.ibm.com> Cc: Tao Xu <tao3.xu@intel.com> Link: https://lore.kernel.org/lkml/YvzuryClcn%2FvA0Gn@kernel.org/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo1-87/+300
To pick up the changes in: a913bde810fc464d ("drm/i915: Update i915 uapi documentation") 525e93f6317a08a0 ("drm/i915/uapi: add NEEDS_CPU_ACCESS hint") 141f733bb3abb000 ("drm/i915/uapi: expose the avail tracking") 3f4309cbdc849637 ("drm/i915/uapi: add probed_cpu_visible_size") a50794f26f52c66c ("uapi/drm/i915: Document memory residency and Flat-CCS capability of obj") That don't add any new ioctl, so no changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Cc: Ramalingam C <ramalingam.c@intel.com> Link: http://lore.kernel.org/lkml/Yvzrp9RFIeEkb5fI@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo1-2/+4
To pick the changes from: 2b1299322016731d ("x86/speculation: Add RSB VM Exit protections") 28a99e95f55c6185 ("x86/amd: Use IBPB for firmware calls") 4ad3278df6fe2b08 ("x86/speculation: Disable RRSBA behavior") 26aae8ccbc197223 ("x86/cpu/amd: Enumerate BTC_NO") 9756bba28470722d ("x86/speculation: Fill RSB on vmexit for IBRS") 3ebc170068885b6f ("x86/bugs: Add retbleed=ibpb") 2dbb887e875b1de3 ("x86/entry: Add kernel IBRS implementation") 6b80b59b35557065 ("x86/bugs: Report AMD retbleed vulnerability") a149180fbcf336e9 ("x86: Add magic AMD return-thunk") 15e67227c49a5783 ("x86: Undo return-thunk damage") a883d624aed463c8 ("x86/cpufeatures: Move RETPOLINE flags to word 11") aae99a7c9ab371b2 ("x86/cpufeatures: Introduce x2AVIC CPUID bit") 6f33a9daff9f0790 ("x86: Fix comment for X86_FEATURE_ZEN") 51802186158c74a0 ("x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug") This only causes these perf files to be rebuilt: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Borislav Petkov <bp@suse.de> Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Wyes Karny <wyes.karny@amd.com> Link: https://lore.kernel.org/lkml/Yvznmu5oHv0ZDN2w@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools headers UAPI: Sync linux/fscrypt.h with the kernel sourcesArnaldo Carvalho de Melo1-1/+2
To pick the changes from: 6b2a51ff03bf0c54 ("fscrypt: Add HCTR2 support for filename encryption") That don't result in any changes in tooling, just causes this to be rebuilt: CC /tmp/build/perf-urgent/trace/beauty/sync_file_range.o LD /tmp/build/perf-urgent/trace/beauty/perf-in.o addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h' diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Huckleberry <nhuck@google.com> Link: https://lore.kernel.org/lkml/Yvzl8C7O1b+hf9GS@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19tools arch x86: Sync the msr-index.h copy with the kernel sourcesArnaldo Carvalho de Melo1-0/+8
To pick up the changes in: 2b1299322016731d ("x86/speculation: Add RSB VM Exit protections") 4af184ee8b2c0a69 ("tools/power turbostat: dump secondary Turbo-Ratio-Limit") 4ad3278df6fe2b08 ("x86/speculation: Disable RRSBA behavior") d7caac991feeef1b ("x86/cpu/amd: Add Spectral Chicken") 6ad0ad2bf8a67e27 ("x86/bugs: Report Intel retbleed vulnerability") c59a1f106f5cd484 ("KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS") 465932db25f36648 ("x86/cpu: Add new VMX feature, Tertiary VM-Execution control") 027bbb884be006b0 ("KVM: x86/speculation: Disable Fill buffer clear within guests") 51802186158c74a0 ("x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug") Addressing these tools/perf build warnings: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h' That makes the beautification scripts to pick some new entries: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after --- before 2022-08-17 09:05:13.938246475 -0300 +++ after 2022-08-17 09:05:22.221455851 -0300 @@ -161,6 +161,7 @@ [0x0000048f] = "IA32_VMX_TRUE_EXIT_CTLS", [0x00000490] = "IA32_VMX_TRUE_ENTRY_CTLS", [0x00000491] = "IA32_VMX_VMFUNC", + [0x00000492] = "IA32_VMX_PROCBASED_CTLS3", [0x000004c1] = "IA32_PMC0", [0x000004d0] = "IA32_MCG_EXT_CTL", [0x00000560] = "IA32_RTIT_OUTPUT_BASE", @@ -212,6 +213,7 @@ [0x0000064D] = "PLATFORM_ENERGY_STATUS", [0x0000064e] = "PPERF", [0x0000064f] = "PERF_LIMIT_REASONS", + [0x00000650] = "SECONDARY_TURBO_RATIO_LIMIT", [0x00000658] = "PKG_WEIGHTED_CORE_C0_RES", [0x00000659] = "PKG_ANY_CORE_C0_RES", [0x0000065A] = "PKG_ANY_GFXE_C0_RES", $ Now one can trace systemwide asking to see backtraces to where those MSRs are being read/written, see this example with a previous update: # perf trace -e msr:*_msr/max-stack=32/ --filter="msr>=IA32_U_CET && msr<=IA32_INT_SSP_TAB" ^C# If we use -v (verbose mode) we can see what it does behind the scenes: # perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr>=IA32_U_CET && msr<=IA32_INT_SSP_TAB" Using CPUID AuthenticAMD-25-21-0 0x6a0 0x6a8 New filter for msr:read_msr: (msr>=0x6a0 && msr<=0x6a8) && (common_pid != 597499 && common_pid != 3313) 0x6a0 0x6a8 New filter for msr:write_msr: (msr>=0x6a0 && msr<=0x6a8) && (common_pid != 597499 && common_pid != 3313) mmap size 528384B ^C# Example with a frequent msr: # perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr==IA32_SPEC_CTRL" --max-events 2 Using CPUID AuthenticAMD-25-21-0 0x48 New filter for msr:read_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841) 0x48 New filter for msr:write_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841) mmap size 528384B Looking at the vmlinux_path (8 entries long) symsrc__init: build id mismatch for vmlinux. Using /proc/kcore for kernel data Using /proc/kallsyms for symbols 0.000 Timer/2525383 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6) do_trace_write_msr ([kernel.kallsyms]) do_trace_write_msr ([kernel.kallsyms]) __switch_to_xtra ([kernel.kallsyms]) __switch_to ([kernel.kallsyms]) __schedule ([kernel.kallsyms]) schedule ([kernel.kallsyms]) futex_wait_queue_me ([kernel.kallsyms]) futex_wait ([kernel.kallsyms]) do_futex ([kernel.kallsyms]) __x64_sys_futex ([kernel.kallsyms]) do_syscall_64 ([kernel.kallsyms]) entry_SYSCALL_64_after_hwframe ([kernel.kallsyms]) __futex_abstimed_wait_common64 (/usr/lib64/libpthread-2.33.so) 0.030 :0/0 msr:write_msr(msr: IA32_SPEC_CTRL, val: 2) do_trace_write_msr ([kernel.kallsyms]) do_trace_write_msr ([kernel.kallsyms]) __switch_to_xtra ([kernel.kallsyms]) __switch_to ([kernel.kallsyms]) __schedule ([kernel.kallsyms]) schedule_idle ([kernel.kallsyms]) do_idle ([kernel.kallsyms]) cpu_startup_entry ([kernel.kallsyms]) secondary_startup_64_no_verify ([kernel.kallsyms]) # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Len Brown <len.brown@intel.com> Cc: Like Xu <like.xu@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Hoo <robert.hu@linux.intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://lore.kernel.org/lkml/YvzbT24m2o5U%2F7+q@kernel.org/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf beauty: Update copy of linux/socket.h with the kernel sourcesArnaldo Carvalho de Melo1-8/+8
To pick the changes in: 7fa875b8e53c288d ("net: copy from user before calling __copy_msghdr") ebe73a284f4de8c5 ("net: Allow custom iter handler in msghdr") 7c701d92b2b5e517 ("skbuff: carry external ubuf_info in msghdr") c04245328dd7e915 ("net: make __sys_accept4_file() static") That don't result in any changes in the tables generated from that header. This silences this perf build warning: Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h' diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h Cc: David Ahern <dsahern@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Dylan Yudaken <dylany@fb.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Pavel Begunkov <asml.silence@gmail.com> Cc: Yajun Deng <yajun.deng@linux.dev> Link: https://lore.kernel.org/lkml/YvzYs+F+Xzq8Hvvp@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf cpumap: Fix alignment for masks in event encodingIan Rogers6-60/+154
A mask encoding of a cpu map is laid out as: u16 nr u16 long_size unsigned long mask[]; However, the mask may be 8-byte aligned meaning there is a 4-byte pad after long_size. This means 32-bit and 64-bit builds see the mask as being at different offsets. On top of this the structure is in the byte data[] encoded as: u16 type char data[] This means the mask's struct isn't the required 4 or 8 byte aligned, but is offset by 2. Consequently the long reads and writes are causing undefined behavior as the alignment is broken. Fix the mask struct by creating explicit 32 and 64-bit variants, use a union to avoid data[] and casts; the struct must be packed so the layout matches the existing perf.data layout. Taking an address of a member of a packed struct breaks alignment so pass the packed perf_record_cpu_map_data to functions, so they can access variables with the right alignment. As the 64-bit version has 4 bytes of padding, optimizing writing to only write the 32-bit version. Committer notes: Disable warnings about 'packed' that break the build in some arches like riscv64, but just around that specific struct. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19Merge tag 'sound-6.0-rc2' of ↵Linus Torvalds17-79/+133
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "The only significant core change is ASoC DPCM fix for asymmetric setup; other remaining changes are device-specific fixes, including the hardening of string manipulations. One change in platform/x86 is the patch I forgot to apply from a series for CS35L41 codec" * tag 'sound-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits) ALSA: hda/realtek: Add quirk for Clevo NS50PU, NS70PU ALSA: info: Fix llseek return value when using callback ALSA: hda/cs8409: Support new Dolphin Variants platform/x86: serial-multi-instantiate: Add CLSA0101 Laptop ALSA: hda/realtek: Add quirk for Lenovo Yoga7 14IAL7 ALSA: hda: cs35l41: Clarify support for CSC3551 without _DSD Properties ALSA: hda/realtek: Add quirks for ASUS Zenbooks using CS35L41 ASoC: codec: tlv320aic32x4: fix mono playback via I2S ASoC: rt5640: Fix the JD voltage dropping issue ASoC: tas2770: Fix handling of mute/unmute ASoC: tas2770: Drop conflicting set_bias_level power setting ASoC: tas2770: Allow mono streams ASoC: tas2770: Set correct FSYNC polarity ASoC: Intel: fix sof_es8336 probe ASoC: DPCM: Don't pick up BE without substream ASoC: SOF: ipc3-topology: Fix clang -Wformat warning ASoC: sh: rz-ssi: Improve error handling in rz_ssi_probe() error path ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() ASoC: SOF: debug: Fix potential buffer overflow by snprintf() ASoC: Intel: avs: Fix potential buffer overflow by snprintf() ...
2022-08-19Merge tag 'drm-fixes-2022-08-19' of git://anongit.freedesktop.org/drm/drmLinus Torvalds130-1249/+1978
Pull drm fixes from Dave Airlie: "Regular weekly fixes. The nouveau patch just enables modesetting on GA103 hw which is like other ampere cards that are already supported. amdgpu has 2 weeks of fixes, as Alex was away, so a bit larger than usual, otherwise some i915 and misc other fixes. ttm: - NULL ptr dereference i915: - disable pci resize on 32-bit systems - don't leak the ccs state - TLB invalidation fixes nouveau: - GA103 enablement - off-by-one fix amdgpu: - Revert some DML stack changes - Rounding fixes in KFD allocations - atombios vram info table parsing fix - DCN 3.1.4 fixes - Clockgating fixes for various new IPs - SMU 13.0.4 fixes - DCN 3.1.4 FP fixes - TMDS fixes for YCbCr420 4k modes - DCN 3.2.x fixes - USB 4 fixes - SMU 13.0 fixes - SMU driver unload memory leak fixes - Display orientation fix - Regression fix for generic fbdev conversion - SDMA 6.x fixes - SR-IOV fixes - IH 6.x fixes - Use after free fix in bo list handling - Revert pipe1 support - XGMI hive reset fix amdkfd: - Fix potential crach in kfd_create_indirect_link_prop() imx: - warning fix meson: - refcounting fix lvds-codec: - error check fix sun4i: - underflow fix - dt-binding fix" * tag 'drm-fixes-2022-08-19' of git://anongit.freedesktop.org/drm/drm: (109 commits) Revert "drm/amd/amdgpu: add pipe1 hardware support" drm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex drm/amdgpu: Fix interrupt handling on ih_soft ring drm/amdgpu: Add secure display TA load for Renoir drm/amd/display: Include scaling factor for SubVP command drm/amdgpu/vcn: Return void from the stop_dbg_mode drm/amdgpu: remove useless condition in amdgpu_job_stop_all_jobs_on_sched() drm/amdgpu: Add decode_iv_ts helper for ih_v6 block drm/amd/display: add chip revision to DCN32 drm/amd/display: avoid doing vm_init multiple time drm/amd/display: Use pitch when calculating size to cache in MALL drm/amd/display: Don't set DSC for phantom pipes drm/amd/display: Update clock table policy for DCN314 drm/amd/display: Modify header inclusion pattern drm/amd/display: Fix plug/unplug external monitor will hang while playback MPO video drm/amd/display: Add debug parameter to retain default clock table drm/amdgpu: Increase tlb flush timeout for sriov drm/amd/display: do not compare integers of different widths drm/amd/display: Add reserved dc_log_type. drm/amd/display: Fix pixel clock programming ...
2022-08-19Merge tag 'bitmap-6.0-rc2' of https://github.com/norov/linuxLinus Torvalds3-6/+25
Pull bitmap updates from Yury Norov: "cpumask: UP optimisation fixes follow-up As an older version of the UP optimisation fixes was merged, not all review feedback has been implemented. This implements the feedback received on the merged version [1], and the respin [2], for changes related to <linux/cpumask.h> and lib/cpumask.c" Link: https://lore.kernel.org/lkml/cover.1656777646.git.sander@svanheule.net/ [1] Link: https://lore.kernel.org/lkml/cover.1659077534.git.sander@svanheule.net/ [2] It spent for more than a week with no issues. * tag 'bitmap-6.0-rc2' of https://github.com/norov/linux: lib/cpumask: drop always-true preprocessor guard lib/cpumask: add inline cpumask_next_wrap() for UP cpumask: align signatures of UP implementations
2022-08-19perf cpumap: Compute mask size in constant timeIan Rogers1-12/+1
perf_cpu_map__max() computes the cpumap's maximum value, no need to iterate over all values. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf cpumap: Synthetic events and const/staticIan Rogers3-14/+12
Make the cpumap arguments const to make it clearer they are in rather than out arguments. Make two functions static and remove external declarations. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf cpumap: Const map for max()Ian Rogers2-2/+2
Allows max() to be used with 'const struct perf_cpu_maps *'. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19x86/mm: Use proper mask when setting PUD mappingAaron Lu1-1/+1
Commit c164fbb40c43f("x86/mm: thread pgprot_t through init_memory_mapping()") mistakenly used __pgprot() which doesn't respect __default_kernel_pte_mask when setting PUD mapping. Fix it by only setting the one bit we actually need (PSE) and leaving the other bits (that have been properly masked) alone. Fixes: c164fbb40c43 ("x86/mm: thread pgprot_t through init_memory_mapping()") Signed-off-by: Aaron Lu <aaron.lu@intel.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-19Merge tag 'kvmarm-fixes-6.0-1' of ↵Paolo Bonzini5-7/+12
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 6.0, take #1 - Fix unexpected sign extension of KVM_ARM_DEVICE_ID_MASK - Tidy-up handling of AArch32 on asymmetric systems
2022-08-19KVM: Drop unnecessary initialization of "ops" in kvm_ioctl_create_device()Li kunyu1-1/+1
The variable is initialized but it is only used after its assignment. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Li kunyu <kunyu@nfschina.com> Message-Id: <20220819021535.483702-1-kunyu@nfschina.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Drop unnecessary initialization of "npages" in hva_to_pfn_slow()Li kunyu1-1/+1
The variable is initialized but it is only used after its assignment. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Li kunyu <kunyu@nfschina.com> Message-Id: <20220819022804.483914-1-kunyu@nfschina.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/kvm: Fix "missing ENDBR" BUG for fastop functionsJosh Poimboeuf1-1/+2
The following BUG was reported: traps: Missing ENDBR: andw_ax_dx+0x0/0x10 [kvm] ------------[ cut here ]------------ kernel BUG at arch/x86/kernel/traps.c:253! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <TASK> asm_exc_control_protection+0x2b/0x30 RIP: 0010:andw_ax_dx+0x0/0x10 [kvm] Code: c3 cc cc cc cc 0f 1f 44 00 00 66 0f 1f 00 48 19 d0 c3 cc cc cc cc 0f 1f 40 00 f3 0f 1e fa 20 d0 c3 cc cc cc cc 0f 1f 44 00 00 <66> 0f 1f 00 66 21 d0 c3 cc cc cc cc 0f 1f 40 00 66 0f 1f 00 21 d0 ? andb_al_dl+0x10/0x10 [kvm] ? fastop+0x5d/0xa0 [kvm] x86_emulate_insn+0x822/0x1060 [kvm] x86_emulate_instruction+0x46f/0x750 [kvm] complete_emulated_mmio+0x216/0x2c0 [kvm] kvm_arch_vcpu_ioctl_run+0x604/0x650 [kvm] kvm_vcpu_ioctl+0x2f4/0x6b0 [kvm] ? wake_up_q+0xa0/0xa0 The BUG occurred because the ENDBR in the andw_ax_dx() fastop function had been incorrectly "sealed" (converted to a NOP) by apply_ibt_endbr(). Objtool marked it to be sealed because KVM has no compile-time references to the function. Instead KVM calculates its address at runtime. Prevent objtool from annotating fastop functions as sealable by creating throwaway dummy compile-time references to the functions. Fixes: 6649fa876da4 ("x86/ibt,kvm: Add ENDBR to fastops") Reported-by: Pengfei Xu <pengfei.xu@intel.com> Debugged-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <0d4116f90e9d0c1b754bb90c585e6f0415a1c508.1660837839.git.jpoimboe@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/kvm: Simplify FOP_SETCC()Josh Poimboeuf1-19/+4
SETCC_ALIGN and FOP_ALIGN are both 16. Remove the special casing for FOP_SETCC() and just make it a normal fastop. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <7c13d94d1a775156f7e36eed30509b274a229140.1660837839.git.jpoimboe@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/ibt, objtool: Add IBT_NOSEAL()Josh Poimboeuf2-1/+13
Add a macro which prevents a function from getting sealed if there are no compile-time references to it. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <20220818213927.e44fmxkoq4yj6ybn@treble> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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