Re: [PATCH 4.9 000/107] 4.9.120-stable review

From: Guenter Roeck
Date: Tue Aug 14 2018 - 21:01:46 EST

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:
ÂÂÂÂhttps://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.120-rc1.gz
or in the git tree and branch at:
ÂÂÂÂgit://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@xxxxxxxxxxxxxxxxxxx>
ÂÂÂÂ Linux 4.9.120-rc1

Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
ÂÂÂÂ x86/microcode: Allow late microcode loading with SMT disabled

Ashok Raj <ashok.raj@xxxxxxxxx>
ÂÂÂÂ x86/microcode: Do not upload microcode if CPUs are offline

David Woodhouse <dwmw@xxxxxxxxxxxx>
ÂÂÂÂ tools headers: Synchronise x86 cpufeatures.h for L1TF additions

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/mm/kmmio: Make the tracer robust against L1TF

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/mm/pat: Make set_memory_np() L1TF safe

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Invert all not present mappings

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Fix SMT supported evaluation

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ x86/speculation: Simplify sysfs report of VMX L1TF vulnerability

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR

Wanpeng Li <wanpengli@xxxxxxxxxxx>
ÂÂÂÂ KVM: X86: Allow userspace to define the microcode version

Wanpeng Li <wanpengli@xxxxxxxxxxx>
ÂÂÂÂ KVM: X86: Introduce kvm_get_msr_feature()

Tom Lendacky <thomas.lendacky@xxxxxxx>
ÂÂÂÂ KVM: SVM: Add MSR-based feature support for serializing LFENCE

Tom Lendacky <thomas.lendacky@xxxxxxx>
ÂÂÂÂ KVM: x86: Add a framework for supporting MSR-based features

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ Documentation/l1tf: Remove Yonah processors from not vulnerable list

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86: Don't include linux/irq.h from asm/hardirq.h

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/irq: Demote irq_cpustat_t::__softirq_pending to u16

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()

Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: detect SMT disabled by BIOS

Tony Luck <tony.luck@xxxxxxxxx>
ÂÂÂÂ Documentation/l1tf: Fix typos

Nicolai Stange <nstange@xxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ Documentation: Add section about CPU vulnerabilities

Jiri Kosina <jkosina@xxxxxxx>
ÂÂÂÂ x86/bugs, kvm: Introduce boot-time control of L1TF mitigations

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early

Jiri Kosina <jkosina@xxxxxxx>
ÂÂÂÂ cpu/hotplug: Expose SMT control init function

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/kvm: Allow runtime control of L1D flush

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/kvm: Serialize L1D flush parameter setter

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/kvm: Add static key for flush always

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/kvm: Move l1tf setup function

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/l1tf: Handle EPT disabled state proper

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/kvm: Drop L1TF MSR list approach

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/litf: Introduce vmx status variable

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Online siblings when SMT control is turned on

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Add find_msr() helper function

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers

Jim Mattson <jmattson@xxxxxxxxxx>
ÂÂÂÂ kvm: nVMX: Update MSR load counts on a VMCS switch

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Add L1D flush logic

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Add L1D MSR based flush

Paolo Bonzini <pbonzini@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Add L1D flush algorithm

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM/VMX: Add module argument for L1TF mitigation

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Boot HT siblings at least once

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ Revert "x86/apic: Ignore secondary threads if nosmt=force"

Michal Hocko <mhocko@xxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Fix up pte->pfn conversion for PAE

Vlastimil Babka <vbabka@xxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Protect PAE swap entries against L1TF

Borislav Petkov <bp@xxxxxxx>
ÂÂÂÂ x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/cpufeatures: Add detection of L1D cache flush support.

Vlastimil Babka <vbabka@xxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Extend 64bit swap file size limit

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/apic: Ignore secondary threads if nosmt=force

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu/AMD: Evaluate smp_num_siblings early

Borislav Petkov <bp@xxxxxxx>
ÂÂÂÂ x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu/intel: Evaluate smp_num_siblings early

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu/topology: Provide detect_extended_topology_early()

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu/common: Provide detect_ht_early()

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu/AMD: Remove the pointless detect_ht() call

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/cpu: Remove the pointless CPU printout

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Provide knobs to control SMT

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Split do_cpu_down()

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ cpu/hotplug: Make bringup/teardown of smp threads symmetric

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/topology: Provide topology_smt_supported()

Thomas Gleixner <tglx@xxxxxxxxxxxxx>
ÂÂÂÂ x86/smp: Provide topology_is_primary_thread()

Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
ÂÂÂÂ x86/bugs: Move the l1tf function and define pr_fmt properly

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Limit swap file size to MAX_PA/2

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Add sysfs reporting for l1tf

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Make sure the first page is always reserved

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Protect swap entries against L1TF

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Change order of offset/type in swap entry

Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
ÂÂÂÂ mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1

Andi Kleen <ak@xxxxxxxxxxxxxxx>
ÂÂÂÂ x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT

Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
ÂÂÂÂ x86/irqflags: Provide a declaration for native_save_fl

Masami Hiramatsu <mhiramat@xxxxxxxxxx>
ÂÂÂÂ kprobes/x86: Fix %p uses in error messages

Jiri Kosina <jkosina@xxxxxxx>
ÂÂÂÂ x86/speculation: Protect against userspace-userspace spectreRSB

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
ÂÂÂÂ x86/paravirt: Fix spectre-v2 mitigations for paravirt guests

Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
ÂÂÂÂ ARM: dts: imx6sx: fix irq for pcie bridge

Michael Mera <dev@xxxxxxxxxxxxxxx>
ÂÂÂÂ IB/ocrdma: fix out of bounds access to local buffer

Fabio Estevam <fabio.estevam@xxxxxxx>
ÂÂÂÂ mtd: nand: qcom: Add a NULL check for devm_kasprintf()

Jack Morgenstein <jackm@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ IB/mlx4: Mark user MR as writable if actual virtual memory is writable

Jack Morgenstein <jackm@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ IB/core: Make testing MR flags for writability a static inline function

Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
ÂÂÂÂ proc: Fix proc_sys_prune_dcache to hold a sb reference

Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
ÂÂÂÂ proc/sysctl: Don't grab i_lock under sysctl_lock.

Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
ÂÂÂÂ proc/sysctl: prune stale dentries during unregistering

Al Viro <viro@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ fix __legitimize_mnt()/mntput() race

Al Viro <viro@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ fix mntput/mntput race

Al Viro <viro@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ make sure that __dentry_kill() always invalidates d_seq, unhashed or not

Al Viro <viro@xxxxxxxxxxxxxxxxxx>
ÂÂÂÂ root dentries need RCU-delayed freeing

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
ÂÂÂÂ init: rename and re-order boot_cpu_state_init()

Bart Van Assche <bart.vanassche@xxxxxxx>
ÂÂÂÂ scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled

Hans de Goede <hdegoede@xxxxxxxxxx>
ÂÂÂÂ ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices

Juergen Gross <jgross@xxxxxxxx>
ÂÂÂÂ xen/netfront: don't cache skb_shinfo()

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
ÂÂÂÂ Mark HI and TASKLET softirq synchronous

Andrey Konovalov <andreyknvl@xxxxxxxxxx>
ÂÂÂÂ kasan: add no_sanitize attribute for clang builds

John David Anglin <dave.anglin@xxxxxxxx>
ÂÂÂÂ parisc: Define mb() and add memory barriers to assembler unlock sequences

Helge Deller <deller@xxxxxx>
ÂÂÂÂ parisc: Enable CONFIG_MLONGCALLS by default

Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
ÂÂÂÂ tpm: fix race condition in tpm_common_write()

Theodore Ts'o <tytso@xxxxxxx>
ÂÂÂÂ 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(-)