This is the start of the stable review cycle for the 4.18.1 release. There are 79 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 17:13:16 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-4.18.1-rc1.... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.18.y and the diffstat can be found below.

thanks,

greg k-h

------------- Pseudo-Shortlog of commits:

Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 4.18.1-rc1

Josh Poimboeuf jpoimboe@redhat.com x86/microcode: Allow late microcode loading with SMT disabled

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

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

Jiri Kosina jkosina@suse.cz x86/speculation/l1tf: Unbreak !__HAVE_ARCH_PFN_MODIFY_ALLOWED architectures

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

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()

Peter Zijlstra peterz@infradead.org sched/smt: Update sched_smt_present at runtime

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

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

-------------

Diffstat:

Documentation/ABI/testing/sysfs-devices-system-cpu | 24 + Documentation/admin-guide/index.rst | 9 + Documentation/admin-guide/kernel-parameters.txt | 78 +++ Documentation/admin-guide/l1tf.rst | 610 +++++++++++++++++++++ Makefile | 4 +- arch/Kconfig | 3 + arch/x86/Kconfig | 1 + arch/x86/include/asm/apic.h | 9 + arch/x86/include/asm/cpufeatures.h | 3 + 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 | 6 + 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 | 74 ++- arch/x86/include/asm/pgtable_64.h | 38 +- 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 | 16 + 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 | 51 +- 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 | 16 +- arch/x86/kernel/cpu/topology.c | 41 +- arch/x86/kernel/fpu/core.c | 1 + arch/x86/kernel/hpet.c | 1 + arch/x86/kernel/i8259.c | 1 + arch/x86/kernel/idt.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/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/mmu.c | 1 + arch/x86/kvm/vmx.c | 455 ++++++++++++--- arch/x86/kvm/x86.c | 34 +- arch/x86/mm/init.c | 23 + arch/x86/mm/kmmio.c | 25 +- arch/x86/mm/mmap.c | 21 + arch/x86/mm/pageattr.c | 8 +- arch/x86/mm/pti.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 + drivers/base/cpu.c | 8 + drivers/gpu/drm/i915/i915_pmu.c | 1 + drivers/gpu/drm/i915/intel_lpe_audio.c | 1 + drivers/pci/controller/pci-hyperv.c | 1 + include/asm-generic/pgtable.h | 12 + include/linux/cpu.h | 21 + include/linux/swapfile.h | 2 + kernel/cpu.c | 280 +++++++++- kernel/sched/core.c | 30 +- kernel/sched/fair.c | 1 + kernel/smp.c | 2 + mm/memory.c | 37 +- mm/mprotect.c | 49 ++ mm/swapfile.c | 46 +- tools/arch/x86/include/asm/cpufeatures.h | 3 + 74 files changed, 2206 insertions(+), 300 deletions(-)