- 20 5月, 2017 19 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc由 Linus Torvalds 提交于
Pull char/misc driver fixes from Greg KH: "Here are five small bugfixes for reported issues with 4.12-rc1 and earlier kernels. Nothing huge here, just a lp, mem, vpd, and uio driver fix, along with a Kconfig fixup for one of the misc drivers. All of these have been in linux-next with no reported issues" * tag 'char-misc-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: firmware: Google VPD: Fix memory allocation error handling drivers: char: mem: Check for address space wraparound with mmap() uio: fix incorrect memory leak cleanup misc: pci_endpoint_test: select CRC32 char: lp: fix possible integer overflow in lp_setup()
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git://www.linux-watchdog.org/linux-watchdog由 Linus Torvalds 提交于
Pull watchdog fixes from Wim Van Sebroeck: - orion_wdt compile-test dependencies - sama5d4_wdt: WDDIS handling and a race confition - pcwd_usb: fix NULL-deref at probe - cadence_wdt: fix timeout setting - wdt_pci: fix build error if SOFTWARE_REBOOT is defined - iTCO_wdt: all versions count down twice - zx2967: remove redundant dev_err call in zx2967_wdt_probe() - bcm281xx: Fix use of uninitialized spinlock * git://www.linux-watchdog.org/linux-watchdog: watchdog: bcm281xx: Fix use of uninitialized spinlock. watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe() iTCO_wdt: all versions count down twice watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT watchdog: cadence_wdt: fix timeout setting watchdog: pcwd_usb: fix NULL-deref at probe watchdog: sama5d4: fix race condition watchdog: sama5d4: fix WDDIS handling watchdog: orion: fix compile-test dependencies
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm fixes from Dave Airlie: "Mostly nouveau and i915, fairly quiet as usual for rc2" * tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux: drm/atmel-hlcdc: Fix output initialization gpu: host1x: select IOMMU_IOVA drm/nouveau/fifo/gk104-: Silence a locking warning drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path drm/nouveau: Fix drm poll_helper handling drm/i915: don't do allocate_va_range again on PIN_UPDATE drm/i915: Fix rawclk readout for g4x drm/i915: Fix runtime PM for LPE audio drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages drm/i915/gvt: avoid unnecessary vgpu switch drm/i915/gvt: not to restore in-context mmio drm/etnaviv: don't put fence in case of submit failure drm/i915/gvt: fix typo: "supporte" -> "support" drm: hdlcd: Fix the calculation of the scanout start address
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI fixes from James Bottomley: "This is the first sweep of mostly minor fixes. There's one security one: the read past the end of a buffer in qedf, and a panic fix for lpfc SLI-3 adapters, but the rest are a set of include and build dependency tidy ups and assorted other small fixes and updates" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: pmcraid: remove redundant check to see if request_size is less than zero scsi: lpfc: ensure els_wq is being checked before destroying it scsi: cxlflash: Select IRQ_POLL scsi: qedf: Avoid reading past end of buffer scsi: qedf: Cleanup the type of io_log->op scsi: lpfc: double lock typo in lpfc_ns_rsp() scsi: qedf: properly update arguments position in function call scsi: scsi_lib: Add #include <scsi/scsi_transport.h> scsi: MAINTAINERS: update OSD entries scsi: Skip deleted devices in __scsi_device_lookup scsi: lpfc: Fix panic on BFS configuration scsi: libfc: do not flood console with messages 'libfc: queue full ...'
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm由 Linus Torvalds 提交于
Pull libnvdimm fixes from Dan Williams: "A couple of compile fixes. With the removal of the ->direct_access() method from block_device_operations in favor of a new dax_device + dax_operations we broke two configurations. The CONFIG_BLOCK=n case is fixed by compiling out the block+dax helpers in the dax core. Configurations with FS_DAX=n EXT4=y / XFS=y and DAX=m fail due to the helpers the builtin filesystem needs being in a module, so we stub out the helpers in the FS_DAX=n case." * 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n case dax: fix false CONFIG_BLOCK dependency
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux由 Linus Torvalds 提交于
Pull i2c fix from Wolfram Sang: "A regression fix for I2C that would be great to have in rc2" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: designware: don't infer timings described by ACPI from clock rate
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu由 Linus Torvalds 提交于
Pull IOMMU fixes from Joerg Roedel: - another compile-fix as a fallout of the recent header-file cleanup - add a missing IO/TLB flush to the Intel VT-d kdump code path - a fix for ARM64 dma code to only access initialized iova_domain members * tag 'iommu-fixes-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/mediatek: Include linux/dma-mapping.h iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings iommu/dma: Don't touch invalid iova_domain members
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fixes from Radim Krčmář: "ARM: - a fix for a build failure introduced in -rc1 when tracepoints are enabled on 32-bit ARM. - disable use of stack pointer protection in the hyp code which can cause panics. - a handful of VGIC fixes. - a fix to the init of the redistributors on GICv3 systems that prevented boot with kvmtool on GICv3 systems introduced in -rc1. - a number of race conditions fixed in our MMU handling code. - a fix for the guest being able to program the debug extensions for the host on the 32-bit side. PPC: - fixes for build failures with PR KVM configurations. - a fix for a host crash that can occur on POWER9 with radix guests. x86: - fixes for nested PML and nested EPT. - a fix for crashes caused by reserved bits in SSE MXCSR that could have been set by userspace. - an optimization of halt polling that fixes high CPU overhead. - fixes for four reports from Dan Carpenter's static checker. - a protection around code that shouldn't have been preemptible. - a fix for port IO emulation" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (27 commits) KVM: x86: prevent uninitialized variable warning in check_svme() KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh() KVM: x86: zero base3 of unusable segments KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation KVM: x86: Fix potential preemption when get the current kvmclock timestamp KVM: Silence underflow warning in avic_get_physical_id_entry() KVM: arm/arm64: Hold slots_lock when unregistering kvm io bus devices KVM: arm/arm64: Fix bug when registering redist iodevs KVM: x86: lower default for halt_poll_ns kvm: arm/arm64: Fix use after free of stage2 page table kvm: arm/arm64: Force reading uncached stage2 PGD KVM: nVMX: fix EPT permissions as reported in exit qualification KVM: VMX: Don't enable EPT A/D feature if EPT feature is disabled KVM: x86: Fix load damaged SSEx MXCSR register kvm: nVMX: off by one in vmx_write_pml_buffer() KVM: arm: rename pm_fake handler to trap_raz_wi KVM: arm: plug potential guest hardware debug leakage kvm: arm/arm64: Fix race in resetting stage2 PGD KVM: arm/arm64: vgic-v3: Use PREbits to infer the number of ICH_APxRn_EL2 registers KVM: arm/arm64: vgic-v3: Do not use Active+Pending state for a HW interrupt ...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip由 Linus Torvalds 提交于
Pull xen fixes from Juergen Gross: "Some fixes for the new Xen 9pfs frontend and some minor cleanups" * tag 'for-linus-4.12b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: make xen_flush_tlb_all() static xen: cleanup pvh leftovers from pv-only sources xen/9pfs: p9_trans_xen_init and p9_trans_xen_exit can be static xen/9pfs: fix return value check in xen_9pfs_front_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux由 Linus Torvalds 提交于
Pull DeviceTree fixes from Rob Herring: - fix missing allocation failure handling in fdt code - fix dtc compile error on 32-bit hosts - revert bad sparse changes causing GCC7 warnings * tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: fdt: add missing allocation-failure check dtc: check.c fix compile error Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc由 Linus Torvalds 提交于
Pull ARM SoC fixes from Olof Johansson: "We had a small batch of fixes before -rc1, but here is a larger one. It contains a backmerge of 4.12-rc1 since some of the downstream branches we merge had that as base; at the same time we already had merged contents before -rc1 and rebase wasn't the right solution. A mix of random smaller fixes and a few things worth pointing out: - We've started telling people to avoid cross-tree shared branches if all they're doing is picking up one or two DT-used constants from a shared include file, and instead to use the numeric values on first submission. Follow-up moving over to symbolic names are sent in right after -rc1, i.e. here. It's only a few minor patches of this type. - Linus Walleij and others are resurrecting the 'Gemini' platform, and wanted a cut-down platform-specific defconfig for it. So I picked that up for them. - Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it helps people to prepare patches since it's a pain when defconfig and current savedefconfig contents differs too much. - Devicetree additions for some pinctrl drivers for Armada that were merged this window. I'd have preferred to see those earlier but it's not a huge deail. The biggest change worth pointing out though since it's touching other parts of the tree: We added prefixes to be used when cross-including DT contents between arm64 and arm, allowing someone to #include <arm/foo.dtsi> from arm64, and likewise. As part of that, we needed arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko resulted in a recursive symlink. Instead, I've now moved it out of arch/*/boot/dts/include, into a shared location under scripts/dtc. While I was at it, I consolidated so all architectures now behave the same way in this manner. Rob Herring (DT maintainer) has acked it. I cc:d most other arch maintainers but nobody seems to care much; it doesn't really affect them since functionality is unchanged for them by default" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits) arm64: dts: rockchip: fix include reference firmware: ti_sci: fix strncat length check ARM: remove duplicate 'const' annotations' arm64: defconfig: enable options needed for QCom DB410c board arm64: defconfig: sync with savedefconfig ARM: configs: add a gemini defconfig devicetree: Move include prefixes from arch to separate directory ARM: dts: dra7: Reduce cpu thermal shutdown temperature memory: omap-gpmc: Fix debug output for access width ARM: dts: LogicPD Torpedo: Fix camera pin mux ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES ARM: dts: gta04: fix polarity of clocks for mcbsp4 ARM: dts: dra7: Add power hold and power controller properties to palmas soc: imx: add PM dependency for IMX7_PM_DOMAINS ARM: dts: imx6sx-sdb: Remove OPP override ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin soc: bcm: brcmstb: Correctly match 7435 SoC tee: add ARM_SMCCC dependency ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable ARM64: dts: mediatek: configure some fixed mmc parameters ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux由 Linus Torvalds 提交于
Pull arm64 fixes/cleanups from Catalin Marinas: - Avoid taking a mutex in the secondary CPU bring-up path when interrupts are disabled - Ignore perf exclude_hv when the kernel is running in Hyp mode - Remove redundant instruction in cmpxchg * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64/cpufeature: don't use mutex in bringup path arm64: perf: Ignore exclude_hv when kernel is running in HYP arm64: Remove redundant mov from LL/SC cmpxchg
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git://linux-arm.org/linux-ld由 Dave Airlie 提交于
single hdlcd fix * 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld: drm: hdlcd: Fix the calculation of the scanout start address
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux由 Linus Torvalds 提交于
Pull powerpc fixes from Michael Ellerman: "The headliner is a fix for FP/VMX register corruption when using transactional memory, and a new selftest to go with it. Then there's the virt_addr_valid() fix, currently HARDENDED_USERCOPY is tripping on that causing some machines to crash. A few other fairly minor fixes for long tail things, and a couple of fixes for code we just merged. Thanks to: Breno Leitao, Gautham Shenoy, Michael Neuling, Naveen Rao. Nicholas Piggin, Paul Mackerras" * tag 'powerpc-4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash powerpc/mm: Fix crash in page table dump with huge pages powerpc/kprobes: Fix handling of instruction emulation on probe re-entry powerpc/powernv: Set NAPSTATELOST after recovering paca on P9 DD1 selftests/powerpc: Test TM and VMX register state powerpc/tm: Fix FP and VMX register corruption powerpc/modules: If mprofile-kernel is enabled add it to vermagic
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由 Radim Krčmář 提交于
get_msr() of MSR_EFER is currently always going to succeed, but static checker doesn't see that far. Don't complicate stuff and just use 0 for the fallback -- it means that the feature is not present. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
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由 Radim Krčmář 提交于
Static analysis noticed that pmu->nr_arch_gp_counters can be 32 (INTEL_PMC_MAX_GENERIC) and therefore cannot be used to shift 'int'. I didn't add BUILD_BUG_ON for it as we have a better checker. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Fixes: 25462f7f ("KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch") Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
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由 Radim Krčmář 提交于
Static checker noticed that base3 could be used uninitialized if the segment was not present (useable). Random stack values probably would not pass VMCS entry checks. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Fixes: 1aa36616 ("KVM: x86 emulator: consolidate segment accessors") Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
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由 Wanpeng Li 提交于
Huawei folks reported a read out-of-bounds vulnerability in kvm pio emulation. - "inb" instruction to access PIT Mod/Command register (ioport 0x43, write only, a read should be ignored) in guest can get a random number. - "rep insb" instruction to access PIT register port 0x43 can control memcpy() in emulator_pio_in_emulated() to copy max 0x400 bytes but only read 1 bytes, which will disclose the unimportant kernel memory in host but no crash. The similar test program below can reproduce the read out-of-bounds vulnerability: void hexdump(void *mem, unsigned int len) { unsigned int i, j; for(i = 0; i < len + ((len % HEXDUMP_COLS) ? (HEXDUMP_COLS - len % HEXDUMP_COLS) : 0); i++) { /* print offset */ if(i % HEXDUMP_COLS == 0) { printf("0x%06x: ", i); } /* print hex data */ if(i < len) { printf("%02x ", 0xFF & ((char*)mem)[i]); } else /* end of block, just aligning for ASCII dump */ { printf(" "); } /* print ASCII dump */ if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1)) { for(j = i - (HEXDUMP_COLS - 1); j <= i; j++) { if(j >= len) /* end of block, not really printing */ { putchar(' '); } else if(isprint(((char*)mem)[j])) /* printable char */ { putchar(0xFF & ((char*)mem)[j]); } else /* other char */ { putchar('.'); } } putchar('\n'); } } } int main(void) { int i; if (iopl(3)) { err(1, "set iopl unsuccessfully\n"); return -1; } static char buf[0x40]; /* test ioport 0x40,0x41,0x42,0x43,0x44,0x45 */ memset(buf, 0xab, sizeof(buf)); asm volatile("push %rdi;"); asm volatile("mov %0, %%rdi;"::"q"(buf)); asm volatile ("mov $0x40, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("mov $0x41, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("mov $0x42, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("mov $0x43, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("mov $0x44, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("mov $0x45, %rdx;"); asm volatile ("in %dx,%al;"); asm volatile ("stosb;"); asm volatile ("pop %rdi;"); hexdump(buf, 0x40); printf("\n"); /* ins port 0x40 */ memset(buf, 0xab, sizeof(buf)); asm volatile("push %rdi;"); asm volatile("mov %0, %%rdi;"::"q"(buf)); asm volatile ("mov $0x20, %rcx;"); asm volatile ("mov $0x40, %rdx;"); asm volatile ("rep insb;"); asm volatile ("pop %rdi;"); hexdump(buf, 0x40); printf("\n"); /* ins port 0x43 */ memset(buf, 0xab, sizeof(buf)); asm volatile("push %rdi;"); asm volatile("mov %0, %%rdi;"::"q"(buf)); asm volatile ("mov $0x20, %rcx;"); asm volatile ("mov $0x43, %rdx;"); asm volatile ("rep insb;"); asm volatile ("pop %rdi;"); hexdump(buf, 0x40); printf("\n"); return 0; } The vcpu->arch.pio_data buffer is used by both in/out instrutions emulation w/o clear after using which results in some random datas are left over in the buffer. Guest reads port 0x43 will be ignored since it is write only, however, the function kernel_pio() can't distigush this ignore from successfully reads data from device's ioport. There is no new data fill the buffer from port 0x43, however, emulator_pio_in_emulated() will copy the stale data in the buffer to the guest unconditionally. This patch fixes it by clearing the buffer before in instruction emulation to avoid to grant guest the stale data in the buffer. In addition, string I/O is not supported for in kernel device. So there is no iteration to read ioport %RCX times for string I/O. The function kernel_pio() just reads one round, and then copy the io size * %RCX to the guest unconditionally, actually it copies the one round ioport data w/ other random datas which are left over in the vcpu->arch.pio_data buffer to the guest. This patch fixes it by introducing the string I/O support for in kernel device in order to grant the right ioport datas to the guest. Before the patch: 0x000000: fe 38 93 93 ff ff ab ab .8...... 0x000008: ab ab ab ab ab ab ab ab ........ 0x000010: ab ab ab ab ab ab ab ab ........ 0x000018: ab ab ab ab ab ab ab ab ........ 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ 0x000000: f6 00 00 00 00 00 00 00 ........ 0x000008: 00 00 00 00 00 00 00 00 ........ 0x000010: 00 00 00 00 4d 51 30 30 ....MQ00 0x000018: 30 30 20 33 20 20 20 20 00 3 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ 0x000000: f6 00 00 00 00 00 00 00 ........ 0x000008: 00 00 00 00 00 00 00 00 ........ 0x000010: 00 00 00 00 4d 51 30 30 ....MQ00 0x000018: 30 30 20 33 20 20 20 20 00 3 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ After the patch: 0x000000: 1e 02 f8 00 ff ff ab ab ........ 0x000008: ab ab ab ab ab ab ab ab ........ 0x000010: ab ab ab ab ab ab ab ab ........ 0x000018: ab ab ab ab ab ab ab ab ........ 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ 0x000000: d2 e2 d2 df d2 db d2 d7 ........ 0x000008: d2 d3 d2 cf d2 cb d2 c7 ........ 0x000010: d2 c4 d2 c0 d2 bc d2 b8 ........ 0x000018: d2 b4 d2 b0 d2 ac d2 a8 ........ 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ 0x000000: 00 00 00 00 00 00 00 00 ........ 0x000008: 00 00 00 00 00 00 00 00 ........ 0x000010: 00 00 00 00 00 00 00 00 ........ 0x000018: 00 00 00 00 00 00 00 00 ........ 0x000020: ab ab ab ab ab ab ab ab ........ 0x000028: ab ab ab ab ab ab ab ab ........ 0x000030: ab ab ab ab ab ab ab ab ........ 0x000038: ab ab ab ab ab ab ab ab ........ Reported-by: NMoguofang <moguofang@huawei.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Moguofang <moguofang@huawei.com> Signed-off-by: NWanpeng Li <wanpeng.li@hotmail.com> Cc: stable@vger.kernel.org Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
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由 Wanpeng Li 提交于
BUG: using __this_cpu_read() in preemptible [00000000] code: qemu-system-x86/2809 caller is __this_cpu_preempt_check+0x13/0x20 CPU: 2 PID: 2809 Comm: qemu-system-x86 Not tainted 4.11.0+ #13 Call Trace: dump_stack+0x99/0xce check_preemption_disabled+0xf5/0x100 __this_cpu_preempt_check+0x13/0x20 get_kvmclock_ns+0x6f/0x110 [kvm] get_time_ref_counter+0x5d/0x80 [kvm] kvm_hv_process_stimers+0x2a1/0x8a0 [kvm] ? kvm_hv_process_stimers+0x2a1/0x8a0 [kvm] ? kvm_arch_vcpu_ioctl_run+0xac9/0x1ce0 [kvm] kvm_arch_vcpu_ioctl_run+0x5bf/0x1ce0 [kvm] kvm_vcpu_ioctl+0x384/0x7b0 [kvm] ? kvm_vcpu_ioctl+0x384/0x7b0 [kvm] ? __fget+0xf3/0x210 do_vfs_ioctl+0xa4/0x700 ? __fget+0x114/0x210 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x23/0xc2 RIP: 0033:0x7f9d164ed357 ? __this_cpu_preempt_check+0x13/0x20 This can be reproduced by run kvm-unit-tests/hyperv_stimer.flat w/ CONFIG_PREEMPT and CONFIG_DEBUG_PREEMPT enabled. Safe access to per-CPU data requires a couple of constraints, though: the thread working with the data cannot be preempted and it cannot be migrated while it manipulates per-CPU variables. If the thread is preempted, the thread that replaces it could try to work with the same variables; migration to another CPU could also cause confusion. However there is no preemption disable when reads host per-CPU tsc rate to calculate the current kvmclock timestamp. This patch fixes it by utilizing get_cpu/put_cpu pair to guarantee both __this_cpu_read() and rdtsc() are not preempted. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: NWanpeng Li <wanpeng.li@hotmail.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
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- 19 5月, 2017 21 次提交
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由 Ard Biesheuvel 提交于
Commit bd698d24 ("i2c: designware: Get selected speed mode sda-hold-time via ACPI") updated the logic that reads the timing parameters for various I2C bus rates from the DSDT, to only read the timing parameters for the currently selected mode. This causes a WARN_ON() splat on platforms that legally omit the clock frequency from the ACPI description, because in the new situation, the core I2C designware driver still accesses the fields in the driver struct that we no longer populate, and proceeds to calculate them from the clock frequency. Since the clock frequency is unspecified, the driver complains loudly using a WARN_ON(). So revert back to the old situation, where the struct fields for all timings are populated, but retain the new logic which chooses the SDA hold time from the timing mode that is currently in use. Fixes: bd698d24 ("i2c: designware: Get selected speed mode ...") Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Reported-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: NJarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
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由 Arnd Bergmann 提交于
The way we handle include paths for DT has changed a bit, which broke a file that had an unconventional way to reference a common header file: arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts:47:10: fatal error: include/dt-bindings/input/linux-event-codes.h: No such file or directory This removes the leading "include/" from the path name, which fixes it. Fixes: d5d332d3 ("devicetree: Move include prefixes from arch to separate directory") Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Eric Anholt 提交于
The bcm_kona_wdt_set_resolution_reg() call takes the spinlock, so initialize it earlier. Fixes a warning at boot with lock debugging enabled. Fixes: 6adb730d ("watchdog: bcm281xx: Watchdog Driver") Signed-off-by: NEric Anholt <eric@anholt.net> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Wei Yongjun 提交于
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Paolo Bonzini 提交于
The ICH9 is listed as having TCO v2, and indeed the behavior in the datasheet corresponds to v2 (for example the NO_REBOOT flag is accessible via the 16KiB-aligned Root Complex Base Address). However, the TCO counts twice just like in v1; the documentation of the SECOND_TO_STS bit says: "ICH9 sets this bit to 1 to indicate that the TIMEOUT bit had been (or is currently) set and a second timeout occurred before the TCO_RLD register was written. If this bit is set and the NO_REBOOT config bit is 0, then the ICH9 will reboot the system after the second timeout. The same can be found in the BayTrail (Atom E3800) datasheet, and even HOWTOs around the Internet say that it will reboot after _twice_ the specified heartbeat. I did not find the Apollo Lake datasheet, but because v4/v5 has a SECOND_TO_STS bit just like the previous version I'm enabling this for Apollo Lake as well. Cc: linux-watchdog@vger.kernel.org Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Arnd Bergmann 提交于
gcc-7 notices that the length we pass to strncat is wrong: drivers/firmware/ti_sci.c: In function 'ti_sci_probe': drivers/firmware/ti_sci.c:204:32: error: specified bound 50 equals the size of the destination [-Werror=stringop-overflow=] Instead of the total length, we must pass the length of the remaining space here. Fixes: aa276781 ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol") Cc: stable@vger.kernel.org Acked-by: NNishanth Menon <nm@ti.com> Acked-by: NSantosh Shilimkar <ssantosh@kernel.org> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Arnd Bergmann 提交于
gcc-7 warns about some declarations that are more 'const' than necessary: arch/arm/mach-at91/pm.c:338:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const ramc_ids[] __initconst = { arch/arm/mach-bcm/bcm_kona_smc.c:36:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const bcm_kona_smc_ids[] __initconst = { arch/arm/mach-spear/time.c:207:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const timer_of_match[] __initconst = { arch/arm/mach-omap2/prm_common.c:714:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = { arch/arm/mach-omap2/vc.c:562:35: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = { The ones in arch/arm were apparently all introduced accidentally by one commit that correctly marked a lot of variables as __initconst. Fixes: 19c233b7 ("ARM: appropriate __init annotation for const data") Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: NTony Lindgren <tony@atomide.com> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NKrzysztof Hałasa <khalasa@piap.pl> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Olof Johansson 提交于
Merge tag 'omap-for-v4.12/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for v4.12-rc cycle most consisting of few minor dts fixes for various devices. Also included is a memory controller (GPMC) debug output fix as without that the shown bootloader configured GPMC bus width will be wrong and won't work for kernel timings: - Add dra7 powerhold configuration to be able to shut down pmic correctly - Fix polarity for gta04 mcbsp4 clocks for modem - Fix Pandaboard CEC pin pull making it usable - Fix LogicPD Torpedo camera pin mux - Fix GPMC debug bus width - Reduce cpu thermal shutdown temperature * tag 'omap-for-v4.12/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: dra7: Reduce cpu thermal shutdown temperature memory: omap-gpmc: Fix debug output for access width ARM: dts: LogicPD Torpedo: Fix camera pin mux ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES ARM: dts: gta04: fix polarity of clocks for mcbsp4 ARM: dts: dra7: Add power hold and power controller properties to palmas Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Olof Johansson 提交于
Merge tag 'imx-fixes-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes i.MX fixes for 4.12: - A fix on GPCv2 power domain driver Kconfig which causes a build failure when CONFIG_PM is not set. - Pull down PMIC IRQ pin for imx53-qsrb board to prevent spurious PMIC interrupts from happening. - Remove board level OPP override for imx6sx-sdb to fix a boot crash seen on Rev.C boards. * tag 'imx-fixes-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: soc: imx: add PM dependency for IMX7_PM_DOMAINS ARM: dts: imx6sx-sdb: Remove OPP override ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Rob Herring 提交于
Enable Qualcomm drivers needed to boot Dragonboard 410c with HDMI. This enables support for clocks, regulators, and USB PHY. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: John Stultz <john.stultz@linaro.org> Signed-off-by: NRob Herring <robh@kernel.org> [Olof: Turned off _RPM configs per follow-up email] Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Rob Herring 提交于
Sync the defconfig with savedefconfig as config options change/move over time. Generated with the following commands: make defconfig make savedefconfig cp defconfig arch/arm64/configs/defconfig Signed-off-by: NRob Herring <robh@kernel.org> Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Linus Walleij 提交于
It makes sense to have a stripped-down defconfig for just Gemini, as it is a pretty small platform used in NAS etc, and will use appended device tree. It is also quick to compile and test. Hopefully this defconfig can be a good base for distributions such as OpenWRT. I plan to add in the config options needed for the different variants of Gemini as we go along. Cc: Janos Laube <janos.dev@gmail.com> Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com> Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NOlof Johansson <olof@lixom.net>
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http://github.com/Broadcom/stblinux由 Olof Johansson 提交于
This pull request contains Broadcom SoC drivers fixes for 4.12, please pull the following: - Florian removes the duplicate compatible string matched by the SUN_TOP_CTRL driver and instead uses the correct one for 7435 * tag 'arm-soc/for-4.12/drivers-fixes' of http://github.com/Broadcom/stblinux: soc: bcm: brcmstb: Correctly match 7435 SoC Signed-off-by: NOlof Johansson <olof@lixom.net>
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http://github.com/Broadcom/stblinux由 Olof Johansson 提交于
This pull request contains Broadcom ARM-based SoC Device Tree fixes for 4.12, please pull the following: - Baruch provides several fixes for the Raspberry Pi (BCM2835) Device Tree source include file: uart0 pinctrl node names, pin number for i2c0, uart0 rts/cts pins and invalid uart1 pin, missing numbers for ethernet aliases * tag 'arm-soc/for-4.12/devicetree-fixes' of http://github.com/Broadcom/stblinux: ARM: dts: bcm2835: add index to the ethernet alias ARM: dts: bcm2835: fix uart0/uart1 pins ARM: dts: bcm2835: fix i2c0 pins ARM: dts: bcm2835: fix uart0 pinctrl node names Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Olof Johansson 提交于
We use a directory under arch/$ARCH/boot/dts as an include path that has links outside of the subtree to find dt-bindings from under include/dt-bindings. That's been working well, but new DT architectures haven't been adding them by default. Recently there's been a desire to share some of the DT material between arm and arm64, which originally caused developers to create symlinks or relative includes between the subtrees. This isn't ideal -- it breaks if the DT files aren't stored in the exact same hierarchy as the kernel tree, and generally it's just icky. As a somewhat cleaner solution we decided to add a $ARCH/ prefix link once, and allow DTS files to reference dtsi (and dts) files in other architectures that way. Original approach was to create these links under each architecture, but it lead to the problem of recursive symlinks. As a remedy, move the include link directories out of the architecture trees into a common location. At the same time, they can now share one directory and one dt-bindings/ link as well. Fixes: 4027494a ('ARM: dts: add arm/arm64 include symlinks') Reported-by: NRussell King <linux@armlinux.org.uk> Reported-by: NOmar Sandoval <osandov@osandov.com> Reviewed-by: NHeiko Stuebner <heiko@sntech.de> Reviewed-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Tested-by: NHeiko Stuebner <heiko@sntech.de> Acked-by: NRob Herring <robh@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Frank Rowand <frowand.list@gmail.com> Cc: linux-arch <linux-arch@vger.kernel.org> Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Olof Johansson 提交于
We've received a few fixes branches with -rc1 as base, but our contents was still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on hat was actually merged. Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Juergen Gross 提交于
xen_flush_tlb_all() is used in arch/x86/xen/mmu.c only. Make it static. Signed-off-by: NJuergen Gross <jgross@suse.com> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Juergen Gross 提交于
There are some leftovers testing for pvh guest mode in pv-only source files. Remove them. Signed-off-by: NJuergen Gross <jgross@suse.com> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: NJuergen Gross <jgross@suse.com>
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由 Michael Ellerman 提交于
virt_addr_valid() is supposed to tell you if it's OK to call virt_to_page() on an address. What this means in practice is that it should only return true for addresses in the linear mapping which are backed by a valid PFN. We are failing to properly check that the address is in the linear mapping, because virt_to_pfn() will return a valid looking PFN for more or less any address. That bug is actually caused by __pa(), used in virt_to_pfn(). eg: __pa(0xc000000000010000) = 0x10000 # Good __pa(0xd000000000010000) = 0x10000 # Bad! __pa(0x0000000000010000) = 0x10000 # Bad! This started happening after commit bdbc29c1 ("powerpc: Work around gcc miscompilation of __pa() on 64-bit") (Aug 2013), where we changed the definition of __pa() to work around a GCC bug. Prior to that we subtracted PAGE_OFFSET from the value passed to __pa(), meaning __pa() of a 0xd or 0x0 address would give you something bogus back. Until we can verify if that GCC bug is no longer an issue, or come up with another solution, this commit does the minimal fix to make virt_addr_valid() work, by explicitly checking that the address is in the linear mapping region. Fixes: bdbc29c1 ("powerpc: Work around gcc miscompilation of __pa() on 64-bit") Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au> Reviewed-by: NPaul Mackerras <paulus@ozlabs.org> Reviewed-by: NBalbir Singh <bsingharora@gmail.com> Tested-by: NBreno Leitao <breno.leitao@gmail.com>
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由 Dave Airlie 提交于
Merge tag 'drm-intel-fixes-2017-05-18-1' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes drm/i915 fixes for v4.12-rc2 * tag 'drm-intel-fixes-2017-05-18-1' of git://anongit.freedesktop.org/git/drm-intel: drm/i915: don't do allocate_va_range again on PIN_UPDATE drm/i915: Fix rawclk readout for g4x drm/i915: Fix runtime PM for LPE audio drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages drm/i915/gvt: avoid unnecessary vgpu switch drm/i915/gvt: not to restore in-context mmio drm/i915/gvt: fix typo: "supporte" -> "support"
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git://github.com/skeggsb/linux由 Dave Airlie 提交于
misc nouveau fixes. * 'linux-4.12' of git://github.com/skeggsb/linux: drm/nouveau/fifo/gk104-: Silence a locking warning drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path drm/nouveau: Fix drm poll_helper handling
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