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This is the 4.19.47 stable release
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truncate ext4: wait for outstanding dio during truncate in nojournal mode f2fs: Fix use of number of devices KVM: x86: fix return value for reserved EFER bio: fix improper use of smp_mb__before_atomic() sbitmap: fix improper use of smp_mb__before_atomic() Revert "scsi: sd: Keep disk read-only when re-reading partition" crypto: vmx - CTR: always increment IV as quadword mmc: sdhci-iproc: cygnus: Set NO_HISPD bit to fix HS50 data hold time problem mmc: sdhci-iproc: Set NO_HISPD bit to fix HS50 data hold time problem kvm: svm/avic: fix off-by-one in checking host APIC ID libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead arm64/kernel: kaslr: reduce module randomization range to 2 GB arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable gfs2: Fix sign extension bug in gfs2_update_stats btrfs: don't double unlock on error in btrfs_punch_hole Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path Btrfs: avoid fallback to transaction commit during fsync of files with holes Btrfs: fix race between ranged fsync and writeback of adjacent ranges btrfs: sysfs: Fix error path kobject memory leak btrfs: sysfs: don't leak memory when failing add fsid udlfb: fix some inconsistent NULL checking fbdev: fix divide error in fb_var_to_videomode NFSv4.2 fix unnecessary retry in nfs4_copy_file_range NFSv4.1 fix incorrect return value in copy_file_range bpf: add bpf_jit_limit knob to restrict unpriv allocations brcmfmac: assure SSID length from firmware is limited brcmfmac: add subtype check for event handling in data path arm64: errata: Add workaround for Cortex-A76 erratum #1463225 btrfs: honor path->skip_locking in backref code ovl: relax WARN_ON() for overlapping layers use case fbdev: fix WARNING in __alloc_pages_nodemask bug media: cpia2: Fix use-after-free in cpia2_exit media: serial_ir: Fix use-after-free in serial_ir_init_module media: vb2: add waiting_in_dqbuf flag media: vivid: use vfree() instead of kfree() for dev->bitmap_cap ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit bpf: devmap: fix use-after-free Read in __dev_map_entry_free batman-adv: mcast: fix multicast tt/tvlv worker locking at76c50x-usb: Don't register led_trigger if usb_register_driver failed acct_on(): don't mess with freeze protection Revert "btrfs: Honour FITRIM range constraints during free space trim" gfs2: Fix lru_count going negative cxgb4: Fix error path in cxgb4_init_module NFS: make nfs_match_client killable IB/hfi1: Fix WQ_MEM_RECLAIM warning gfs2: Fix occasional glock use-after-free mmc: core: Verify SD bus width tools/bpf: fix perf build error with uClibc (seen on ARC) selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c bpftool: exclude bash-completion/bpftool from .gitignore pattern dmaengine: tegra210-dma: free dma controller in remove() net: ena: gcc 8: fix compilation warning hv_netvsc: fix race that may miss tx queue wakeup Bluetooth: Ignore CC events not matching the last HCI command pinctrl: zte: fix leaked of_node references ASoC: Intel: kbl_da7219_max98357a: Map BTN_0 to KEY_PLAYPAUSE usb: dwc2: gadget: Increase descriptors count for ISOC's usb: dwc3: move synchronize_irq() out of the spinlock protected block ASoC: hdmi-codec: unlock the device on startup errors powerpc/perf: Return accordingly on invalid chip-id in powerpc/boot: Fix missing check of lseek() return value powerpc/perf: Fix loop exit condition in nest_imc_event_init ASoC: imx: fix fiq dependencies spi: pxa2xx: fix SCR (divisor) calculation brcm80211: potential NULL dereference in brcmf_cfg80211_vndr_cmds_dcmd_handler() ACPI / property: fix handling of data_nodes in acpi_get_next_subnode() drm/nouveau/bar/nv50: ensure BAR is mapped media: stm32-dcmi: return appropriate error codes during probe ARM: vdso: Remove dependency with the arch_timer driver internals arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable powerpc/watchdog: Use hrtimers for per-CPU heartbeat sched/cpufreq: Fix kobject memleak scsi: qla2xxx: Fix a qla24xx_enable_msix() error path scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending() scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session() scsi: qla2xxx: Fix hardirq-unsafe locking x86/modules: Avoid breaking W^X while loading modules Btrfs: fix data bytes_may_use underflow with fallocate due to failed quota reserve btrfs: fix panic during relocation after ENOSPC before writeback happens btrfs: Don't panic when we can't find a root key iwlwifi: pcie: don't crash on invalid RX interrupt rtc: 88pm860x: prevent use-after-free on device remove rtc: stm32: manage the get_irq probe defer case scsi: qedi: Abort ep termination if offload not scheduled s390/kexec_file: Fix detection of text segment in ELF loader sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs w1: fix the resume command API s390: qeth: address type mismatch warning dmaengine: pl330: _stop: clear interrupt status mac80211/cfg80211: update bss channel on channel switch libbpf: fix samples/bpf build failure due to undefined UINT32_MAX slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register ASoC: fsl_sai: Update is_slave_mode with correct value mwifiex: prevent an array overflow rsi: Fix NULL pointer dereference in kmalloc net: cw1200: fix a NULL pointer dereference nvme: set 0 capacity if namespace block size exceeds PAGE_SIZE nvme-rdma: fix a NULL deref when an admin connect times out crypto: sun4i-ss - Fix invalid calculation of hash end bcache: avoid potential memleak of list of journal_replay(s) in the CACHE_SYNC branch of run_cache_set bcache: return error immediately in bch_journal_replay() bcache: fix failure in journal relplay bcache: add failure check to run_cache_set() for journal replay bcache: avoid clang -Wunintialized warning RDMA/cma: Consider scope_id while binding to ipv6 ll address vfio-ccw: Do not call flush_workqueue while holding the spinlock vfio-ccw: Release any channel program when releasing/removing vfio-ccw mdev x86/build: Move _etext to actual end of .text smpboot: Place the __percpu annotation correctly x86/mm: Remove in_nmi() warning from 64-bit implementation of vmalloc_fault() mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions Bluetooth: hci_qca: Give enough time to ROME controller to bootup. HID: logitech-hidpp: use RAP instead of FAP to get the protocol version pinctrl: pistachio: fix leaked of_node references pinctrl: samsung: fix leaked of_node references clk: rockchip: undo several noc and special clocks as critical on rk3288 perf/arm-cci: Remove broken race mitigation dmaengine: at_xdmac: remove BUG_ON macro in tasklet media: coda: clear error return value before picture run media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper media: au0828: stop video streaming only when last user stops media: ov2659: make S_FMT succeed even if requested format doesn't match audit: fix a memory leak bug media: stm32-dcmi: fix crash when subdev do not expose any formats media: au0828: Fix NULL pointer dereference in au0828_analog_stream_enable() media: pvrusb2: Prevent a buffer overflow iio: adc: stm32-dfsdm: fix unmet direct dependencies detected block: fix use-after-free on gendisk powerpc/numa: improve control of topology updates powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX random: fix CRNG initialization when random.trust_cpu=1 random: add a spinlock_t to struct batched_entropy cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock sched/core: Check quota and period overflow at usec to nsec conversion sched/rt: Check integer overflow at usec to nsec conversion sched/core: Handle overflow in cpu_shares_write_u64 staging: vc04_services: handle kzalloc failure drm/msm: a5xx: fix possible object reference leak irq_work: Do not raise an IPI when queueing work on the local CPU thunderbolt: Take domain lock in switch sysfs attribute callbacks s390/qeth: handle error from qeth_update_from_chp_desc() USB: core: Don't unbind interfaces following device reset failure x86/irq/64: Limit IST stack overflow check to #DB stack drm: etnaviv: avoid DMA API warning when importing buffers phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode phy: mapphone-mdm6600: add gpiolib dependency i40e: Able to add up to 16 MAC filters on an untrusted VF i40e: don't allow changes to HW VLAN stripping on active port VLANs ACPI/IORT: Reject platform device creation on NUMA node mapping failure arm64: vdso: Fix clock_getres() for CLOCK_REALTIME RDMA/cxgb4: Fix null pointer dereference on alloc_skb failure perf/x86/msr: Add Icelake support perf/x86/intel/rapl: Add Icelake support perf/x86/intel/cstate: Add Icelake support hwmon: (vt1211) Use request_muxed_region for Super-IO accesses hwmon: (smsc47m1) Use request_muxed_region for Super-IO accesses hwmon: (smsc47b397) Use request_muxed_region for Super-IO accesses hwmon: (pc87427) Use request_muxed_region for Super-IO accesses hwmon: (f71805f) Use request_muxed_region for Super-IO accesses scsi: libsas: Do discovery on empty PHY to update PHY info mmc: core: make pwrseq_emmc (partially) support sleepy GPIO controllers mmc_spi: add a status check for spi_sync_locked mmc: sdhci-of-esdhc: add erratum eSDHC5 support mmc: sdhci-of-esdhc: add erratum A-009204 support mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support drm/amdgpu: fix old fence check in amdgpu_fence_emit PM / core: Propagate dev->power.wakeup_path when no callbacks clk: rockchip: Fix video codec clocks on rk3288 extcon: arizona: Disable mic detect if running when driver is removed clk: rockchip: Make rkpwm a critical clock on rk3288 s390: zcrypt: initialize variables before_use x86/microcode: Fix the ancient deprecated microcode loading method s390/mm: silence compiler warning when compiling without CONFIG_PGSTE s390: cio: fix cio_irb declaration selftests: cgroup: fix cleanup path in test_memcg_subtree_control() qmi_wwan: Add quirk for Quectel dynamic config cpufreq: ppc_cbe: fix possible object reference leak cpufreq/pasemi: fix possible object reference leak cpufreq: pmac32: fix possible object reference leak cpufreq: kirkwood: fix possible object reference leak block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR x86/build: Keep local relocations with ld.lld drm/pl111: fix possible object reference leak iio: ad_sigma_delta: Properly handle SPI bus locking vs CS assertion iio: hmc5843: fix potential NULL pointer dereferences iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data iio: adc: ti-ads7950: Fix improper use of mlock selftests/bpf: ksym_search won't check symbols exists rtlwifi: fix a potential NULL pointer dereference mwifiex: Fix mem leak in mwifiex_tm_cmd brcmfmac: fix missing checks for kmemdup b43: shut up clang -Wuninitialized variable warning brcmfmac: convert dev_init_lock mutex to completion brcmfmac: fix WARNING during USB disconnect in case of unempty psq brcmfmac: fix race during disconnect when USB completion is in progress brcmfmac: fix Oops when bringing up interface during USB disconnect rtc: xgene: fix possible race condition rtlwifi: fix potential NULL pointer dereference scsi: ufs: Fix regulator load and icc-level configuration scsi: ufs: Avoid configuring regulator with undefined voltage range drm/panel: otm8009a: Add delay at the end of initialization arm64: cpu_ops: fix a leaked reference by adding missing of_node_put wil6210: fix return code of wmi_mgmt_tx and wmi_mgmt_tx_ext x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP x86/uaccess, signal: Fix AC=1 bloat x86/ia32: Fix ia32_restore_sigcontext() AC leak x86/uaccess: Fix up the fixup chardev: add additional check for minor range overlap RDMA/hns: Fix bad endianess of port_pd variable sh: sh7786: Add explicit I/O cast to sh7786_mm_sel() HID: core: move Usage Page concatenation to Main item ASoC: eukrea-tlv320: fix a leaked reference by adding missing of_node_put ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put cxgb3/l2t: Fix undefined behaviour HID: logitech-hidpp: change low battery level threshold from 31 to 30 percent spi: tegra114: reset controller on probe kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice. media: video-mux: fix null pointer dereferences media: wl128x: prevent two potential buffer overflows media: gspca: Kill URBs on USB device disconnect efifb: Omit memory map check on legacy boot thunderbolt: property: Fix a missing check of kzalloc thunderbolt: Fix to check the return value of kmemdup timekeeping: Force upper bound for setting CLOCK_REALTIME scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check virtio_console: initialize vtermno value for ports tty: ipwireless: fix missing checks for ioremap overflow: Fix -Wtype-limits compilation warnings x86/mce: Fix machine_check_poll() tests for error types rcutorture: Fix cleanup path for invalid torture_type strings x86/mce: Handle varying MCA bank counts rcuperf: Fix cleanup path for invalid perf_type strings usb: core: Add PM runtime calls to usb_hcd_platform_shutdown scsi: qla4xxx: avoid freeing unallocated dma memory scsi: lpfc: avoid uninitialized variable warning selinux: avoid uninitialized variable warning batman-adv: allow updating DAT entry timeouts on incoming ARP Replies dmaengine: tegra210-adma: use devm_clk_*() helpers hwrng: omap - Set default quality thunderbolt: Fix to check return value of ida_simple_get thunderbolt: Fix to check for kmemdup failure drm/amd/display: fix releasing planes when exiting odm thunderbolt: property: Fix a NULL pointer dereference e1000e: Disable runtime PM on CNP+ tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers igb: Exclude device from suspend direct complete optimization media: si2165: fix a missing check of return value media: dvbsky: Avoid leaking dvb frontend media: m88ds3103: serialize reset messages in m88ds3103_set_frontend media: staging: davinci_vpfe: disallow building with COMPILE_TEST drm/amd/display: Fix Divide by 0 in memory calculations drm/amd/display: Set stream->mode_changed when connectors change scsi: ufs: fix a missing check of devm_reset_control_get media: vimc: stream: fix thread state before sleep media: gspca: do not resubmit URBs when streaming has stopped media: go7007: avoid clang frame overflow warning with KASAN media: vimc: zero the media_device on probe scsi: lpfc: Fix FDMI manufacturer attribute value scsi: lpfc: Fix fc4type information for FDMI media: saa7146: avoid high stack usage with clang scsi: lpfc: Fix SLI3 commands being issued on SLI4 devices spi : spi-topcliff-pch: Fix to handle empty DMA buffers drm/omap: dsi: Fix PM for display blank with paired dss_pll calls spi: rspi: Fix sequencer reset during initialization spi: imx: stop buffer overflow in RX FIFO flush spi: Fix zero length xfer bug ASoC: davinci-mcasp: Fix clang warning without CONFIG_PM drm/v3d: Handle errors from IRQ setup. drm/drv: Hold ref on parent device during drm_device lifetime drm: Wake up next in drm_read() chain if we are forced to putback the event drm/sun4i: dsi: Change the start delay calculation vfio-ccw: Prevent quiesce function going into an infinite loop drm/sun4i: dsi: Enforce boundaries on the start delay NFS: Fix a double unlock from nfs_match,get_client Linux 4.19.47 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
commit
cab4399ebf
300 changed files with 2093 additions and 959 deletions
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@ -58,6 +58,7 @@ stable kernels.
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| ARM | Cortex-A72 | #853709 | N/A |
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| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
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| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
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| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
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| ARM | MMU-500 | #841119,#826419 | N/A |
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| | | | |
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| Cavium | ThunderX ITS | #22375, #24313 | CAVIUM_ERRATUM_22375 |
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@ -92,6 +92,14 @@ Values :
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0 - disable JIT kallsyms export (default value)
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1 - enable JIT kallsyms export for privileged users only
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bpf_jit_limit
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-------------
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This enforces a global limit for memory allocations to the BPF JIT
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compiler in order to reject unprivileged JIT requests once it has
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been surpassed. bpf_jit_limit contains the value of the global limit
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in bytes.
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dev_weight
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--------------
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2
Makefile
2
Makefile
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@ -1,7 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0
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VERSION = 4
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PATCHLEVEL = 19
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SUBLEVEL = 46
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SUBLEVEL = 47
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EXTRAVERSION =
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NAME = "People's Front"
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@ -68,6 +68,8 @@
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#define BPIALL __ACCESS_CP15(c7, 0, c5, 6)
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#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0)
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#define CNTVCT __ACCESS_CP15_64(1, c14)
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extern unsigned long cr_alignment; /* defined in entry-armv.S */
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static inline unsigned long get_cr(void)
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@ -18,9 +18,9 @@
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#include <linux/compiler.h>
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#include <linux/hrtimer.h>
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#include <linux/time.h>
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#include <asm/arch_timer.h>
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#include <asm/barrier.h>
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#include <asm/bug.h>
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#include <asm/cp15.h>
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#include <asm/page.h>
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#include <asm/unistd.h>
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#include <asm/vdso_datapage.h>
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@ -123,7 +123,8 @@ static notrace u64 get_ns(struct vdso_data *vdata)
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u64 cycle_now;
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u64 nsec;
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cycle_now = arch_counter_get_cntvct();
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isb();
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cycle_now = read_sysreg(CNTVCT);
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cycle_delta = (cycle_now - vdata->cs_cycle_last) & vdata->cs_mask;
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@ -480,6 +480,24 @@ config ARM64_ERRATUM_1024718
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If unsure, say Y.
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config ARM64_ERRATUM_1463225
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bool "Cortex-A76: Software Step might prevent interrupt recognition"
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default y
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help
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This option adds a workaround for Arm Cortex-A76 erratum 1463225.
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On the affected Cortex-A76 cores (r0p0 to r3p1), software stepping
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of a system call instruction (SVC) can prevent recognition of
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subsequent interrupts when software stepping is disabled in the
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exception handler of the system call and either kernel debugging
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is enabled or VHE is in use.
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Work around the erratum by triggering a dummy step exception
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when handling a system call from a task that is being stepped
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in a VHE configuration of the kernel.
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If unsure, say Y.
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config CAVIUM_ERRATUM_22375
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bool "Cavium erratum 22375, 24313"
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default y
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@ -51,7 +51,8 @@
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#define ARM64_SSBD 30
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#define ARM64_MISMATCHED_CACHE_TYPE 31
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#define ARM64_HAS_STAGE2_FWB 32
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#define ARM64_WORKAROUND_1463225 33
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#define ARM64_NCAPS 33
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#define ARM64_NCAPS 34
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#endif /* __ASM_CPUCAPS_H */
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@ -86,6 +86,7 @@
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#define ARM_CPU_PART_CORTEX_A75 0xD0A
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#define ARM_CPU_PART_CORTEX_A35 0xD04
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#define ARM_CPU_PART_CORTEX_A55 0xD05
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#define ARM_CPU_PART_CORTEX_A76 0xD0B
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#define APM_CPU_PART_POTENZA 0x000
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@ -110,6 +111,7 @@
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#define MIDR_CORTEX_A75 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A75)
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#define MIDR_CORTEX_A35 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A35)
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#define MIDR_CORTEX_A55 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A55)
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#define MIDR_CORTEX_A76 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
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#define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
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#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
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#define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
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@ -444,6 +444,8 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
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return __pmd_to_phys(pmd);
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}
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static inline void pte_unmap(pte_t *pte) { }
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/* Find an entry in the third-level page table. */
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#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
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@ -452,7 +454,6 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
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#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
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#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
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#define pte_unmap(pte) do { } while (0)
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#define pte_unmap_nested(pte) do { } while (0)
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#define pte_set_fixmap(addr) ((pte_t *)set_fixmap_offset(FIX_PTE, addr))
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@ -38,6 +38,7 @@ struct vdso_data {
|
|||
__u32 tz_minuteswest; /* Whacky timezone stuff */
|
||||
__u32 tz_dsttime;
|
||||
__u32 use_syscall;
|
||||
__u32 hrtimer_res;
|
||||
};
|
||||
|
||||
#endif /* !__ASSEMBLY__ */
|
||||
|
|
|
|||
|
|
@ -99,7 +99,7 @@ int main(void)
|
|||
DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
|
||||
DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
|
||||
DEFINE(CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC_RAW);
|
||||
DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
|
||||
DEFINE(CLOCK_REALTIME_RES, offsetof(struct vdso_data, hrtimer_res));
|
||||
DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
|
||||
DEFINE(CLOCK_MONOTONIC_COARSE,CLOCK_MONOTONIC_COARSE);
|
||||
DEFINE(CLOCK_COARSE_RES, LOW_RES_NSEC);
|
||||
|
|
|
|||
|
|
@ -411,6 +411,22 @@ static bool has_ssbd_mitigation(const struct arm64_cpu_capabilities *entry,
|
|||
}
|
||||
#endif /* CONFIG_ARM64_SSBD */
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DEFINE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static bool
|
||||
has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry,
|
||||
int scope)
|
||||
{
|
||||
u32 midr = read_cpuid_id();
|
||||
/* Cortex-A76 r0p0 - r3p1 */
|
||||
struct midr_range range = MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1);
|
||||
|
||||
WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
|
||||
return is_midr_in_range(midr, &range) && is_kernel_in_hyp_mode();
|
||||
}
|
||||
#endif
|
||||
|
||||
#define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
|
||||
.matches = is_affected_midr_range, \
|
||||
.midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max)
|
||||
|
|
@ -679,6 +695,14 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
|
|||
.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
|
||||
.matches = has_ssbd_mitigation,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
{
|
||||
.desc = "ARM erratum 1463225",
|
||||
.capability = ARM64_WORKAROUND_1463225,
|
||||
.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
|
||||
.matches = has_cortex_a76_erratum_1463225,
|
||||
},
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
|
|
|||
|
|
@ -85,6 +85,7 @@ static const char *__init cpu_read_enable_method(int cpu)
|
|||
pr_err("%pOF: missing enable-method property\n",
|
||||
dn);
|
||||
}
|
||||
of_node_put(dn);
|
||||
} else {
|
||||
enable_method = acpi_get_enable_method(cpu);
|
||||
if (!enable_method) {
|
||||
|
|
|
|||
|
|
@ -145,15 +145,15 @@ u64 __init kaslr_early_init(u64 dt_phys)
|
|||
|
||||
if (IS_ENABLED(CONFIG_RANDOMIZE_MODULE_REGION_FULL)) {
|
||||
/*
|
||||
* Randomize the module region over a 4 GB window covering the
|
||||
* Randomize the module region over a 2 GB window covering the
|
||||
* kernel. This reduces the risk of modules leaking information
|
||||
* about the address of the kernel itself, but results in
|
||||
* branches between modules and the core kernel that are
|
||||
* resolved via PLTs. (Branches between modules will be
|
||||
* resolved normally.)
|
||||
*/
|
||||
module_range = SZ_4G - (u64)(_end - _stext);
|
||||
module_alloc_base = max((u64)_end + offset - SZ_4G,
|
||||
module_range = SZ_2G - (u64)(_end - _stext);
|
||||
module_alloc_base = max((u64)_end + offset - SZ_2G,
|
||||
(u64)MODULES_VADDR);
|
||||
} else {
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -56,7 +56,7 @@ void *module_alloc(unsigned long size)
|
|||
* can simply omit this fallback in that case.
|
||||
*/
|
||||
p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
|
||||
module_alloc_base + SZ_4G, GFP_KERNEL,
|
||||
module_alloc_base + SZ_2G, GFP_KERNEL,
|
||||
PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
|
||||
__builtin_return_address(0));
|
||||
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
#include <linux/syscalls.h>
|
||||
|
||||
#include <asm/daifflags.h>
|
||||
#include <asm/debug-monitors.h>
|
||||
#include <asm/fpsimd.h>
|
||||
#include <asm/syscall.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
|
@ -60,6 +61,35 @@ static inline bool has_syscall_work(unsigned long flags)
|
|||
int syscall_trace_enter(struct pt_regs *regs);
|
||||
void syscall_trace_exit(struct pt_regs *regs);
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static void cortex_a76_erratum_1463225_svc_handler(void)
|
||||
{
|
||||
u32 reg, val;
|
||||
|
||||
if (!unlikely(test_thread_flag(TIF_SINGLESTEP)))
|
||||
return;
|
||||
|
||||
if (!unlikely(this_cpu_has_cap(ARM64_WORKAROUND_1463225)))
|
||||
return;
|
||||
|
||||
__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 1);
|
||||
reg = read_sysreg(mdscr_el1);
|
||||
val = reg | DBG_MDSCR_SS | DBG_MDSCR_KDE;
|
||||
write_sysreg(val, mdscr_el1);
|
||||
asm volatile("msr daifclr, #8");
|
||||
isb();
|
||||
|
||||
/* We will have taken a single-step exception by this point */
|
||||
|
||||
write_sysreg(reg, mdscr_el1);
|
||||
__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 0);
|
||||
}
|
||||
#else
|
||||
static void cortex_a76_erratum_1463225_svc_handler(void) { }
|
||||
#endif /* CONFIG_ARM64_ERRATUM_1463225 */
|
||||
|
||||
static void el0_svc_common(struct pt_regs *regs, int scno, int sc_nr,
|
||||
const syscall_fn_t syscall_table[])
|
||||
{
|
||||
|
|
@ -68,6 +98,7 @@ static void el0_svc_common(struct pt_regs *regs, int scno, int sc_nr,
|
|||
regs->orig_x0 = regs->regs[0];
|
||||
regs->syscallno = scno;
|
||||
|
||||
cortex_a76_erratum_1463225_svc_handler();
|
||||
local_daif_restore(DAIF_PROCCTX);
|
||||
user_exit();
|
||||
|
||||
|
|
|
|||
|
|
@ -232,6 +232,9 @@ void update_vsyscall(struct timekeeper *tk)
|
|||
vdso_data->wtm_clock_sec = tk->wall_to_monotonic.tv_sec;
|
||||
vdso_data->wtm_clock_nsec = tk->wall_to_monotonic.tv_nsec;
|
||||
|
||||
/* Read without the seqlock held by clock_getres() */
|
||||
WRITE_ONCE(vdso_data->hrtimer_res, hrtimer_resolution);
|
||||
|
||||
if (!use_syscall) {
|
||||
/* tkr_mono.cycle_last == tkr_raw.cycle_last */
|
||||
vdso_data->cs_cycle_last = tk->tkr_mono.cycle_last;
|
||||
|
|
|
|||
|
|
@ -308,13 +308,14 @@ ENTRY(__kernel_clock_getres)
|
|||
ccmp w0, #CLOCK_MONOTONIC_RAW, #0x4, ne
|
||||
b.ne 1f
|
||||
|
||||
ldr x2, 5f
|
||||
adr vdso_data, _vdso_data
|
||||
ldr w2, [vdso_data, #CLOCK_REALTIME_RES]
|
||||
b 2f
|
||||
1:
|
||||
cmp w0, #CLOCK_REALTIME_COARSE
|
||||
ccmp w0, #CLOCK_MONOTONIC_COARSE, #0x4, ne
|
||||
b.ne 4f
|
||||
ldr x2, 6f
|
||||
ldr x2, 5f
|
||||
2:
|
||||
cbz x1, 3f
|
||||
stp xzr, x2, [x1]
|
||||
|
|
@ -328,8 +329,6 @@ ENTRY(__kernel_clock_getres)
|
|||
svc #0
|
||||
ret
|
||||
5:
|
||||
.quad CLOCK_REALTIME_RES
|
||||
6:
|
||||
.quad CLOCK_COARSE_RES
|
||||
.cfi_endproc
|
||||
ENDPROC(__kernel_clock_getres)
|
||||
|
|
|
|||
|
|
@ -664,6 +664,11 @@ static int __iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
|
|||
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
|
||||
return ret;
|
||||
|
||||
if (!is_vmalloc_addr(cpu_addr)) {
|
||||
unsigned long pfn = page_to_pfn(virt_to_page(cpu_addr));
|
||||
return __swiotlb_mmap_pfn(vma, pfn, size);
|
||||
}
|
||||
|
||||
if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
|
||||
/*
|
||||
* DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
|
||||
|
|
@ -687,6 +692,11 @@ static int __iommu_get_sgtable(struct device *dev, struct sg_table *sgt,
|
|||
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
|
||||
struct vm_struct *area = find_vm_area(cpu_addr);
|
||||
|
||||
if (!is_vmalloc_addr(cpu_addr)) {
|
||||
struct page *page = virt_to_page(cpu_addr);
|
||||
return __swiotlb_get_sgtable_page(sgt, page, size);
|
||||
}
|
||||
|
||||
if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
|
||||
/*
|
||||
* DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
|
||||
|
|
|
|||
|
|
@ -827,14 +827,47 @@ void __init hook_debug_fault_code(int nr,
|
|||
debug_fault_info[nr].name = name;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ARM64_ERRATUM_1463225
|
||||
DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
|
||||
|
||||
static int __exception
|
||||
cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
|
||||
{
|
||||
if (user_mode(regs))
|
||||
return 0;
|
||||
|
||||
if (!__this_cpu_read(__in_cortex_a76_erratum_1463225_wa))
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* We've taken a dummy step exception from the kernel to ensure
|
||||
* that interrupts are re-enabled on the syscall path. Return back
|
||||
* to cortex_a76_erratum_1463225_svc_handler() with debug exceptions
|
||||
* masked so that we can safely restore the mdscr and get on with
|
||||
* handling the syscall.
|
||||
*/
|
||||
regs->pstate |= PSR_D_BIT;
|
||||
return 1;
|
||||
}
|
||||
#else
|
||||
static int __exception
|
||||
cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif /* CONFIG_ARM64_ERRATUM_1463225 */
|
||||
|
||||
asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint,
|
||||
unsigned int esr,
|
||||
struct pt_regs *regs)
|
||||
unsigned int esr,
|
||||
struct pt_regs *regs)
|
||||
{
|
||||
const struct fault_info *inf = debug_fault_info + DBG_ESR_EVT(esr);
|
||||
unsigned long pc = instruction_pointer(regs);
|
||||
int rv;
|
||||
|
||||
if (cortex_a76_erratum_1463225_debug_handler(regs))
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* Tell lockdep we disabled irqs in entry.S. Do nothing if they were
|
||||
* already disabled to preserve the last enabled/disabled addresses.
|
||||
|
|
|
|||
Some files were not shown because too many files have changed in this diff Show more
Loading…
Reference in a new issue