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Message-ID: <72777101-78dc-408d-76e3-88cffc68f456@roeck-us.net>
Date: Tue, 14 Aug 2018 18:01:38 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Sebastian Gottschall <s.gottschall@...wrt.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-kernel@...r.kernel.org
Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
shuah@...nel.org, patches@...nelci.org,
ben.hutchings@...ethink.co.uk, lkft-triage@...ts.linaro.org,
stable@...r.kernel.org
Subject: Re: [PATCH 4.9 000/107] 4.9.120-stable review
On 08/14/2018 05:36 PM, Sebastian Gottschall wrote:
> if SWAP is disabled in kernel config, the following compile error will raise up with this release
>
> arch/x86/built-in.o: in function `max_swapfile_size': (.text+0x3bba1): undefined reference to `generic_max_swapfile_size'
>
> of course this is simple to fix. the function max_swapfile_size must be excluded if CONFIG_SWAP is disabled
>
Fixed with upstream commit 792adb90fa72 ("x86/init: fix build with CONFIG_SWAP=n").
Also needed in other stable branches (at least in 4.4).
Guenter
> Sebastian
>
> Am 14.08.2018 um 19:16 schrieb Greg Kroah-Hartman:
>> 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.gz
>> 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@...uxfoundation.org>
>> Linux 4.9.120-rc1
>>
>> Josh Poimboeuf <jpoimboe@...hat.com>
>> x86/microcode: Allow late microcode loading with SMT disabled
>>
>> Ashok Raj <ashok.raj@...el.com>
>> x86/microcode: Do not upload microcode if CPUs are offline
>>
>> David Woodhouse <dwmw@...zon.co.uk>
>> tools headers: Synchronise x86 cpufeatures.h for L1TF additions
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/mm/kmmio: Make the tracer robust against L1TF
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/mm/pat: Make set_memory_np() L1TF safe
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Invert all not present mappings
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Fix SMT supported evaluation
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR
>>
>> Wanpeng Li <wanpengli@...cent.com>
>> KVM: X86: Allow userspace to define the microcode version
>>
>> Wanpeng Li <wanpengli@...cent.com>
>> KVM: X86: Introduce kvm_get_msr_feature()
>>
>> Tom Lendacky <thomas.lendacky@....com>
>> KVM: SVM: Add MSR-based feature support for serializing LFENCE
>>
>> Tom Lendacky <thomas.lendacky@....com>
>> KVM: x86: Add a framework for supporting MSR-based features
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> Documentation/l1tf: Remove Yonah processors from not vulnerable list
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
>>
>> Nicolai Stange <nstange@...e.de>
>> x86: Don't include linux/irq.h from asm/hardirq.h
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
>>
>> Josh Poimboeuf <jpoimboe@...hat.com>
>> cpu/hotplug: detect SMT disabled by BIOS
>>
>> Tony Luck <tony.luck@...el.com>
>> Documentation/l1tf: Fix typos
>>
>> Nicolai Stange <nstange@...e.de>
>> x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> Documentation: Add section about CPU vulnerabilities
>>
>> Jiri Kosina <jkosina@...e.cz>
>> x86/bugs, kvm: Introduce boot-time control of L1TF mitigations
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
>>
>> Jiri Kosina <jkosina@...e.cz>
>> cpu/hotplug: Expose SMT control init function
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/kvm: Allow runtime control of L1D flush
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/kvm: Serialize L1D flush parameter setter
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/kvm: Add static key for flush always
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/kvm: Move l1tf setup function
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/l1tf: Handle EPT disabled state proper
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/kvm: Drop L1TF MSR list approach
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/litf: Introduce vmx status variable
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Online siblings when SMT control is turned on
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Add find_msr() helper function
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers
>>
>> Jim Mattson <jmattson@...gle.com>
>> kvm: nVMX: Update MSR load counts on a VMCS switch
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> x86/KVM/VMX: Add L1D flush logic
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> x86/KVM/VMX: Add L1D MSR based flush
>>
>> Paolo Bonzini <pbonzini@...hat.com>
>> x86/KVM/VMX: Add L1D flush algorithm
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM/VMX: Add module argument for L1TF mitigation
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Boot HT siblings at least once
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> Revert "x86/apic: Ignore secondary threads if nosmt=force"
>>
>> Michal Hocko <mhocko@...e.cz>
>> x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
>>
>> Vlastimil Babka <vbabka@...e.cz>
>> x86/speculation/l1tf: Protect PAE swap entries against L1TF
>>
>> Borislav Petkov <bp@...e.de>
>> x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/cpufeatures: Add detection of L1D cache flush support.
>>
>> Vlastimil Babka <vbabka@...e.cz>
>> x86/speculation/l1tf: Extend 64bit swap file size limit
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/apic: Ignore secondary threads if nosmt=force
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu/AMD: Evaluate smp_num_siblings early
>>
>> Borislav Petkov <bp@...e.de>
>> x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu/intel: Evaluate smp_num_siblings early
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu/topology: Provide detect_extended_topology_early()
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu/common: Provide detect_ht_early()
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu/AMD: Remove the pointless detect_ht() call
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/cpu: Remove the pointless CPU printout
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Provide knobs to control SMT
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Split do_cpu_down()
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> cpu/hotplug: Make bringup/teardown of smp threads symmetric
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/topology: Provide topology_smt_supported()
>>
>> Thomas Gleixner <tglx@...utronix.de>
>> x86/smp: Provide topology_is_primary_thread()
>>
>> Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>> x86/bugs: Move the l1tf function and define pr_fmt properly
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Limit swap file size to MAX_PA/2
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Add sysfs reporting for l1tf
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Make sure the first page is always reserved
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation
>>
>> Linus Torvalds <torvalds@...ux-foundation.org>
>> x86/speculation/l1tf: Protect swap entries against L1TF
>>
>> Linus Torvalds <torvalds@...ux-foundation.org>
>> x86/speculation/l1tf: Change order of offset/type in swap entry
>>
>> Naoya Horiguchi <n-horiguchi@...jp.nec.com>
>> mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1
>>
>> Andi Kleen <ak@...ux.intel.com>
>> x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT
>>
>> Nick Desaulniers <ndesaulniers@...gle.com>
>> x86/irqflags: Provide a declaration for native_save_fl
>>
>> Masami Hiramatsu <mhiramat@...nel.org>
>> kprobes/x86: Fix %p uses in error messages
>>
>> Jiri Kosina <jkosina@...e.cz>
>> x86/speculation: Protect against userspace-userspace spectreRSB
>>
>> Peter Zijlstra <peterz@...radead.org>
>> x86/paravirt: Fix spectre-v2 mitigations for paravirt guests
>>
>> Oleksij Rempel <o.rempel@...gutronix.de>
>> ARM: dts: imx6sx: fix irq for pcie bridge
>>
>> Michael Mera <dev@...haelmera.com>
>> IB/ocrdma: fix out of bounds access to local buffer
>>
>> Fabio Estevam <fabio.estevam@....com>
>> mtd: nand: qcom: Add a NULL check for devm_kasprintf()
>>
>> Jack Morgenstein <jackm@....mellanox.co.il>
>> IB/mlx4: Mark user MR as writable if actual virtual memory is writable
>>
>> Jack Morgenstein <jackm@....mellanox.co.il>
>> IB/core: Make testing MR flags for writability a static inline function
>>
>> Eric W. Biederman <ebiederm@...ssion.com>
>> proc: Fix proc_sys_prune_dcache to hold a sb reference
>>
>> Eric W. Biederman <ebiederm@...ssion.com>
>> proc/sysctl: Don't grab i_lock under sysctl_lock.
>>
>> Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
>> proc/sysctl: prune stale dentries during unregistering
>>
>> Al Viro <viro@...iv.linux.org.uk>
>> fix __legitimize_mnt()/mntput() race
>>
>> Al Viro <viro@...iv.linux.org.uk>
>> fix mntput/mntput race
>>
>> Al Viro <viro@...iv.linux.org.uk>
>> make sure that __dentry_kill() always invalidates d_seq, unhashed or not
>>
>> Al Viro <viro@...iv.linux.org.uk>
>> root dentries need RCU-delayed freeing
>>
>> Linus Torvalds <torvalds@...ux-foundation.org>
>> init: rename and re-order boot_cpu_state_init()
>>
>> Bart Van Assche <bart.vanassche@....com>
>> scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled
>>
>> Hans de Goede <hdegoede@...hat.com>
>> ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
>>
>> Juergen Gross <jgross@...e.com>
>> xen/netfront: don't cache skb_shinfo()
>>
>> Linus Torvalds <torvalds@...ux-foundation.org>
>> Mark HI and TASKLET softirq synchronous
>>
>> Andrey Konovalov <andreyknvl@...gle.com>
>> kasan: add no_sanitize attribute for clang builds
>>
>> John David Anglin <dave.anglin@...l.net>
>> parisc: Define mb() and add memory barriers to assembler unlock sequences
>>
>> Helge Deller <deller@....de>
>> parisc: Enable CONFIG_MLONGCALLS by default
>>
>> Tadeusz Struk <tadeusz.struk@...el.com>
>> tpm: fix race condition in tpm_common_write()
>>
>> Theodore Ts'o <tytso@....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(-)
>>
>>
>>
>
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