This is the start of the stable review cycle for the 4.9.120 release. There are 107 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu Aug 16 17:14:53 UTC 2018. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.120-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below.
thanks,
greg k-h
------------- Pseudo-Shortlog of commits:
Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 4.9.120-rc1
Josh Poimboeuf jpoimboe@redhat.com x86/microcode: Allow late microcode loading with SMT disabled
Ashok Raj ashok.raj@intel.com x86/microcode: Do not upload microcode if CPUs are offline
David Woodhouse dwmw@amazon.co.uk tools headers: Synchronise x86 cpufeatures.h for L1TF additions
Andi Kleen ak@linux.intel.com x86/mm/kmmio: Make the tracer robust against L1TF
Andi Kleen ak@linux.intel.com x86/mm/pat: Make set_memory_np() L1TF safe
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Invert all not present mappings
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Fix SMT supported evaluation
Paolo Bonzini pbonzini@redhat.com KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
Paolo Bonzini pbonzini@redhat.com x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
Paolo Bonzini pbonzini@redhat.com x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
Paolo Bonzini pbonzini@redhat.com KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR
Wanpeng Li wanpengli@tencent.com KVM: X86: Allow userspace to define the microcode version
Wanpeng Li wanpengli@tencent.com KVM: X86: Introduce kvm_get_msr_feature()
Tom Lendacky thomas.lendacky@amd.com KVM: SVM: Add MSR-based feature support for serializing LFENCE
Tom Lendacky thomas.lendacky@amd.com KVM: x86: Add a framework for supporting MSR-based features
Thomas Gleixner tglx@linutronix.de Documentation/l1tf: Remove Yonah processors from not vulnerable list
Nicolai Stange nstange@suse.de x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
Nicolai Stange nstange@suse.de x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
Nicolai Stange nstange@suse.de x86: Don't include linux/irq.h from asm/hardirq.h
Nicolai Stange nstange@suse.de x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
Nicolai Stange nstange@suse.de x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
Nicolai Stange nstange@suse.de x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
Nicolai Stange nstange@suse.de x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
Nicolai Stange nstange@suse.de x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
Josh Poimboeuf jpoimboe@redhat.com cpu/hotplug: detect SMT disabled by BIOS
Tony Luck tony.luck@intel.com Documentation/l1tf: Fix typos
Nicolai Stange nstange@suse.de x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content
Thomas Gleixner tglx@linutronix.de Documentation: Add section about CPU vulnerabilities
Jiri Kosina jkosina@suse.cz x86/bugs, kvm: Introduce boot-time control of L1TF mitigations
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
Jiri Kosina jkosina@suse.cz cpu/hotplug: Expose SMT control init function
Thomas Gleixner tglx@linutronix.de x86/kvm: Allow runtime control of L1D flush
Thomas Gleixner tglx@linutronix.de x86/kvm: Serialize L1D flush parameter setter
Thomas Gleixner tglx@linutronix.de x86/kvm: Add static key for flush always
Thomas Gleixner tglx@linutronix.de x86/kvm: Move l1tf setup function
Thomas Gleixner tglx@linutronix.de x86/l1tf: Handle EPT disabled state proper
Thomas Gleixner tglx@linutronix.de x86/kvm: Drop L1TF MSR list approach
Thomas Gleixner tglx@linutronix.de x86/litf: Introduce vmx status variable
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Online siblings when SMT control is turned on
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Add find_msr() helper function
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers
Jim Mattson jmattson@google.com kvm: nVMX: Update MSR load counts on a VMCS switch
Paolo Bonzini pbonzini@redhat.com x86/KVM/VMX: Add L1D flush logic
Paolo Bonzini pbonzini@redhat.com x86/KVM/VMX: Add L1D MSR based flush
Paolo Bonzini pbonzini@redhat.com x86/KVM/VMX: Add L1D flush algorithm
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM/VMX: Add module argument for L1TF mitigation
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Boot HT siblings at least once
Thomas Gleixner tglx@linutronix.de Revert "x86/apic: Ignore secondary threads if nosmt=force"
Michal Hocko mhocko@suse.cz x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
Vlastimil Babka vbabka@suse.cz x86/speculation/l1tf: Protect PAE swap entries against L1TF
Borislav Petkov bp@suse.de x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/cpufeatures: Add detection of L1D cache flush support.
Vlastimil Babka vbabka@suse.cz x86/speculation/l1tf: Extend 64bit swap file size limit
Thomas Gleixner tglx@linutronix.de x86/apic: Ignore secondary threads if nosmt=force
Thomas Gleixner tglx@linutronix.de x86/cpu/AMD: Evaluate smp_num_siblings early
Borislav Petkov bp@suse.de x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info
Thomas Gleixner tglx@linutronix.de x86/cpu/intel: Evaluate smp_num_siblings early
Thomas Gleixner tglx@linutronix.de x86/cpu/topology: Provide detect_extended_topology_early()
Thomas Gleixner tglx@linutronix.de x86/cpu/common: Provide detect_ht_early()
Thomas Gleixner tglx@linutronix.de x86/cpu/AMD: Remove the pointless detect_ht() call
Thomas Gleixner tglx@linutronix.de x86/cpu: Remove the pointless CPU printout
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Provide knobs to control SMT
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Split do_cpu_down()
Thomas Gleixner tglx@linutronix.de cpu/hotplug: Make bringup/teardown of smp threads symmetric
Thomas Gleixner tglx@linutronix.de x86/topology: Provide topology_smt_supported()
Thomas Gleixner tglx@linutronix.de x86/smp: Provide topology_is_primary_thread()
Konrad Rzeszutek Wilk konrad.wilk@oracle.com x86/bugs: Move the l1tf function and define pr_fmt properly
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Limit swap file size to MAX_PA/2
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Add sysfs reporting for l1tf
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Make sure the first page is always reserved
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation
Linus Torvalds torvalds@linux-foundation.org x86/speculation/l1tf: Protect swap entries against L1TF
Linus Torvalds torvalds@linux-foundation.org x86/speculation/l1tf: Change order of offset/type in swap entry
Naoya Horiguchi n-horiguchi@ah.jp.nec.com mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1
Andi Kleen ak@linux.intel.com x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT
Nick Desaulniers ndesaulniers@google.com x86/irqflags: Provide a declaration for native_save_fl
Masami Hiramatsu mhiramat@kernel.org kprobes/x86: Fix %p uses in error messages
Jiri Kosina jkosina@suse.cz x86/speculation: Protect against userspace-userspace spectreRSB
Peter Zijlstra peterz@infradead.org x86/paravirt: Fix spectre-v2 mitigations for paravirt guests
Oleksij Rempel o.rempel@pengutronix.de ARM: dts: imx6sx: fix irq for pcie bridge
Michael Mera dev@michaelmera.com IB/ocrdma: fix out of bounds access to local buffer
Fabio Estevam fabio.estevam@nxp.com mtd: nand: qcom: Add a NULL check for devm_kasprintf()
Jack Morgenstein jackm@dev.mellanox.co.il IB/mlx4: Mark user MR as writable if actual virtual memory is writable
Jack Morgenstein jackm@dev.mellanox.co.il IB/core: Make testing MR flags for writability a static inline function
Eric W. Biederman ebiederm@xmission.com proc: Fix proc_sys_prune_dcache to hold a sb reference
Eric W. Biederman ebiederm@xmission.com proc/sysctl: Don't grab i_lock under sysctl_lock.
Konstantin Khlebnikov khlebnikov@yandex-team.ru proc/sysctl: prune stale dentries during unregistering
Al Viro viro@zeniv.linux.org.uk fix __legitimize_mnt()/mntput() race
Al Viro viro@zeniv.linux.org.uk fix mntput/mntput race
Al Viro viro@zeniv.linux.org.uk make sure that __dentry_kill() always invalidates d_seq, unhashed or not
Al Viro viro@zeniv.linux.org.uk root dentries need RCU-delayed freeing
Linus Torvalds torvalds@linux-foundation.org init: rename and re-order boot_cpu_state_init()
Bart Van Assche bart.vanassche@wdc.com scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled
Hans de Goede hdegoede@redhat.com ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
Juergen Gross jgross@suse.com xen/netfront: don't cache skb_shinfo()
Linus Torvalds torvalds@linux-foundation.org Mark HI and TASKLET softirq synchronous
Andrey Konovalov andreyknvl@google.com kasan: add no_sanitize attribute for clang builds
John David Anglin dave.anglin@bell.net parisc: Define mb() and add memory barriers to assembler unlock sequences
Helge Deller deller@gmx.de parisc: Enable CONFIG_MLONGCALLS by default
Tadeusz Struk tadeusz.struk@intel.com tpm: fix race condition in tpm_common_write()
Theodore Ts'o tytso@mit.edu ext4: fix check to prevent initializing reserved inodes
-------------
Diffstat:
Documentation/ABI/testing/sysfs-devices-system-cpu | 24 + Documentation/index.rst | 1 + Documentation/kernel-parameters.txt | 78 +++ Documentation/l1tf.rst | 610 +++++++++++++++++++++ Documentation/virtual/kvm/api.txt | 40 +- Makefile | 4 +- arch/Kconfig | 3 + arch/arm/boot/dts/imx6sx.dtsi | 2 +- arch/parisc/Kconfig | 2 +- arch/parisc/include/asm/barrier.h | 32 ++ arch/parisc/kernel/entry.S | 2 + arch/parisc/kernel/pacache.S | 1 + arch/parisc/kernel/syscall.S | 4 + arch/x86/Kconfig | 1 + arch/x86/include/asm/apic.h | 10 + arch/x86/include/asm/cpufeatures.h | 4 +- arch/x86/include/asm/dmi.h | 2 +- arch/x86/include/asm/hardirq.h | 26 +- arch/x86/include/asm/irqflags.h | 2 + arch/x86/include/asm/kvm_host.h | 9 + arch/x86/include/asm/msr-index.h | 7 + arch/x86/include/asm/page_32_types.h | 9 +- arch/x86/include/asm/pgtable-2level.h | 17 + arch/x86/include/asm/pgtable-3level.h | 37 +- arch/x86/include/asm/pgtable-invert.h | 32 ++ arch/x86/include/asm/pgtable.h | 85 ++- arch/x86/include/asm/pgtable_64.h | 48 +- arch/x86/include/asm/pgtable_types.h | 10 +- arch/x86/include/asm/processor.h | 17 + arch/x86/include/asm/topology.h | 6 +- arch/x86/include/asm/vmx.h | 11 + arch/x86/kernel/apic/apic.c | 17 + arch/x86/kernel/apic/htirq.c | 2 + arch/x86/kernel/apic/io_apic.c | 1 + arch/x86/kernel/apic/msi.c | 1 + arch/x86/kernel/apic/vector.c | 1 + arch/x86/kernel/cpu/amd.c | 53 +- arch/x86/kernel/cpu/bugs.c | 171 ++++-- arch/x86/kernel/cpu/common.c | 56 +- arch/x86/kernel/cpu/cpu.h | 2 + arch/x86/kernel/cpu/intel.c | 7 + arch/x86/kernel/cpu/microcode/core.c | 26 + arch/x86/kernel/cpu/topology.c | 41 +- arch/x86/kernel/fpu/core.c | 1 + arch/x86/kernel/ftrace.c | 1 + arch/x86/kernel/hpet.c | 1 + arch/x86/kernel/i8259.c | 1 + arch/x86/kernel/irq.c | 1 + arch/x86/kernel/irq_32.c | 1 + arch/x86/kernel/irq_64.c | 1 + arch/x86/kernel/irqinit.c | 1 + arch/x86/kernel/kprobes/core.c | 5 +- arch/x86/kernel/kprobes/opt.c | 1 + arch/x86/kernel/paravirt.c | 14 +- arch/x86/kernel/setup.c | 6 + arch/x86/kernel/smp.c | 1 + arch/x86/kernel/smpboot.c | 18 + arch/x86/kernel/time.c | 1 + arch/x86/kvm/svm.c | 46 +- arch/x86/kvm/vmx.c | 426 ++++++++++++-- arch/x86/kvm/x86.c | 133 ++++- arch/x86/mm/fault.c | 1 + arch/x86/mm/init.c | 23 + arch/x86/mm/kaiser.c | 1 + arch/x86/mm/kmmio.c | 25 +- arch/x86/mm/mmap.c | 21 + arch/x86/mm/pageattr.c | 8 +- arch/x86/platform/efi/efi_64.c | 1 + arch/x86/platform/efi/quirks.c | 1 + .../intel-mid/device_libs/platform_mrfld_wdt.c | 1 + arch/x86/platform/uv/tlb_uv.c | 1 + arch/x86/xen/enlighten.c | 1 + arch/x86/xen/setup.c | 1 + drivers/acpi/acpi_lpss.c | 2 + drivers/base/cpu.c | 8 + drivers/char/tpm/tpm-dev.c | 43 +- drivers/infiniband/core/umem.c | 11 +- drivers/infiniband/hw/mlx4/mr.c | 50 +- drivers/infiniband/hw/ocrdma/ocrdma_stats.c | 2 +- drivers/mtd/nand/qcom_nandc.c | 3 + drivers/net/xen-netfront.c | 8 +- drivers/pci/host/pci-hyperv.c | 2 + drivers/scsi/sr.c | 29 +- fs/dcache.c | 13 +- fs/ext4/ialloc.c | 5 +- fs/ext4/super.c | 8 +- fs/namespace.c | 28 +- fs/proc/inode.c | 3 +- fs/proc/internal.h | 7 +- fs/proc/proc_sysctl.c | 83 ++- include/asm-generic/pgtable.h | 12 + include/linux/compiler-clang.h | 3 + include/linux/cpu.h | 23 +- include/linux/swapfile.h | 2 + include/linux/sysctl.h | 1 + include/rdma/ib_verbs.h | 14 + include/uapi/linux/kvm.h | 2 + init/main.c | 2 +- kernel/cpu.c | 282 +++++++++- kernel/smp.c | 2 + kernel/softirq.c | 12 +- mm/memory.c | 29 +- mm/mprotect.c | 49 ++ mm/swapfile.c | 46 +- tools/arch/x86/include/asm/cpufeatures.h | 4 +- 105 files changed, 2680 insertions(+), 366 deletions(-)