Message ID | 20180205162143.h47egal5owyseoll@calabresa |
---|---|
State | New |
Headers | show |
Series | [PULL,SRU,Artful] CVE-2017-5754 ARM64 KPTI fixes | expand |
I'm not able to review this huge amount of changes, but the Pull Request itself looks good. Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com> On 02/05/18 17:21, Thadeu Lima de Souza Cascardo wrote: > The following changes since commit b9f7706e18abb6276a87776e15596fa898cbafa4: > > x86/mm: Fix overlap of i386 CPU_ENTRY_AREA with FIX_BTMAP (2018-02-02 17:14:07 +0100) > > are available in the git repository at: > > git://git.launchpad.net/~cascardo/ubuntu/+source/linux/+git/artful arm64_kpti > > for you to fetch changes up to ab5d689609038d806079b54d8c2d7b2606e16a26: > > UBUNTU: [Config] UNMAP_KERNEL_AT_EL0=y && HARDEN_BRANCH_PREDICTOR=y (2018-02-05 14:18:04 -0200) > > ---------------------------------------------------------------- > Ard Biesheuvel (5): > arm64: unwind: disregard frame.sp when validating frame pointer > arm64: unwind: reference pt_regs via embedded stack frame > arm64: unwind: remove sp from struct stackframe > arm64: kernel: remove {THREAD,IRQ_STACK}_START_SP > arm64: assembler: allow adr_this_cpu to use the stack pointer > > Arnd Bergmann (1): > arm64: fix pmem interface definition > > Arvind Yadav (1): > KVM: arm/arm64: vgic: constify seq_operations and file_operations > > Catalin Marinas (7): > arm64: Convert pte handling from inline asm to using (cmp)xchg > kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg() > arm64: Move PTE_RDONLY bit handling out of set_pte_at() > arm64: Ignore hardware dirty bit updates in ptep_set_wrprotect() > arm64: Remove the !CONFIG_ARM64_HW_AFDBM alternative code paths > arm64: Implement arch-specific pte_access_permitted() > arm64: kpti: Fix the interaction between ASID switching and software PAN > > Christoffer Dall (2): > KVM: arm/arm64: Extract GICv3 max APRn index calculation > KVM: arm/arm64: Support uaccess of GICC_APRn > > Daniel Borkmann (2): > bpf: inline map in map lookup functions for array and htab > bpf: do not test for PCPU_MIN_UNIT_SIZE before percpu allocations > > Dave Martin (4): > arm64: syscallno is secretly an int, make it official > arm64: Abstract syscallno manipulation > arm64: asm-bug: Renumber macro local labels to avoid clashes > arm64: KVM: Hide unsupported AArch64 CPU features from guests > > Dmitry Safonov (1): > arm64/vdso: Support mremap() for vDSO > > James Morse (9): > KVM: arm/arm64: Fix guest external abort matching > arm64: explicitly mask all exceptions > arm64: introduce an order for exceptions > arm64: Move the async/fiq helpers to explicitly set process context flags > arm64: Mask all exceptions during kernel_exit > arm64: entry.S: Remove disable_dbg > arm64: entry.S: convert el1_sync > arm64: entry.S convert el0_sync > arm64: entry.S: convert elX_irq > > Jayachandran C (3): > arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs > arm64: Branch predictor hardening for Cavium ThunderX2 > UBUNTU: SAUCE: arm64: Branch predictor hardening for Cavium ThunderX2 > > Jinbum Park (1): > arm64: pgd: Mark pgd_cache as __ro_after_init > > Julien Thierry (3): > arm64: Update fault_info table with new exception types > arm64: Use existing defines for mdscr > arm64: Fix single stepping in kernel traps > > Kevin Brodsky (1): > arm64: compat: Remove leftover variable declaration > > Marc Zyngier (10): > KVM: arm/arm64: vITS: Drop its_ite->lpi field > arm64: Move post_ttbr_update_workaround to C code > arm64: KVM: Use per-CPU vector when BP hardening is enabled > arm64: KVM: Make PSCI_VERSION a fast path > UBUNTU: SAUCE: arm: Add BTB invalidation on switch_mm for Cortex-A9, A12 and A17 > UBUNTU: SAUCE: arm: Invalidate BTB on prefetch abort outside of user mapping on Cortex A8, A9, A12 and A17 > UBUNTU: SAUCE: arm: KVM: Invalidate BTB on guest exit > UBUNTU: SAUCE: arm: Add icache invalidation on switch_mm for Cortex-A15 > UBUNTU: SAUCE: arm: Invalidate icache on prefetch abort outside of user mapping on Cortex-A15 > UBUNTU: SAUCE: arm: KVM: Invalidate icache on guest exit for Cortex-A15 > > Mark Rutland (21): > arm64: Add ASM_BUG() > arm64: consistently use bl for C exception entry > arm64: move non-entry code out of .entry.text > arm64: unwind: avoid percpu indirection for irq stack > fork: allow arch-override of VMAP stack alignment > arm64: factor out PAGE_* and CONT_* definitions > arm64: clean up THREAD_* definitions > arm64: clean up irq stack definitions > arm64: move SEGMENT_ALIGN to <asm/memory.h> > efi/arm64: add EFI_KIMG_ALIGN > arm64: factor out entry stack manipulation > arm64: use an irq stack pointer > arm64: add basic VMAP_STACK support > arm64: add on_accessible_stack() > arm64: add VMAP_STACK overflow detection > arm64: Use larger stacks when KASAN is selected > UBUNTU: SAUCE: asm-generic/barrier: add generic nospec helpers > UBUNTU: SAUCE: Documentation: document nospec helpers > UBUNTU: SAUCE: arm64: implement nospec_{load,ptr}() > UBUNTU: SAUCE: arm: implement nospec_ptr() > UBUNTU: SAUCE: bpf: inhibit speculated out-of-bounds pointers > > Paolo Pisati (1): > UBUNTU: [Config] UNMAP_KERNEL_AT_EL0=y && HARDEN_BRANCH_PREDICTOR=y > > Robin Murphy (7): > arm64: mm: Fix set_memory_valid() declaration > arm64: Convert __inval_cache_range() to area-based > arm64: Expose DC CVAP to userspace > arm64: Handle trapped DC CVAP > arm64: Implement pmem API support > arm64: uaccess: Implement *_flushcache variants > arm64: uaccess: Add the uaccess_flushcache.c file > > Shanker Donthineni (3): > arm64: Define cputype macros for Falkor CPU > arm64: Implement branch predictor hardening for Falkor > UBUNTU: SAUCE: arm64: Implement branch predictor hardening for Falkor > > Suzuki K Poulose (3): > arm64: Expose support for optional ARMv8-A features > arm64: Fix the feature type for ID register fields > arm64: capabilities: Handle duplicate entries for a capability > > Will Deacon (32): > arm64: sysreg: Move SPE registers and PSB into common header files > arm64: head: Init PMSCR_EL2.{PA,PCT} when entered at EL2 without VHE > arm64: context: Fix comments and remove pointless smp_wmb() > arm64: SW PAN: Point saved ttbr0 at the zero page when switching to init_mm > arm64: SW PAN: Update saved ttbr0 value on enter_lazy_tlb > arm64: mm: Use non-global mappings for kernel space > arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN > arm64: mm: Move ASID from TTBR0 to TTBR1 > arm64: mm: Remove pre_ttbr0_update_workaround for Falkor erratum #E1003 > arm64: mm: Rename post_ttbr0_update_workaround > arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN > arm64: mm: Allocate ASIDs in pairs > arm64: mm: Add arm64_kernel_unmapped_at_el0 helper > arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI > arm64: entry: Add exception trampoline page for exceptions from EL0 > arm64: mm: Map entry trampoline into trampoline and kernel page tables > arm64: entry: Explicitly pass exception level to kernel_ventry macro > arm64: entry: Hook up entry trampoline to exception vectors > arm64: erratum: Work around Falkor erratum #E1003 in trampoline code > arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks > arm64: entry: Add fake CPU feature for unmapping the kernel at EL0 > arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0 > arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR > arm64: kaslr: Put kernel vectors address in separate data page > arm64: use RET instruction for exiting the trampoline > arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry > arm64: Take into account ID_AA64PFR0_EL1.CSV3 > arm64: cpufeature: Pass capability structure to ->enable callback > drivers/firmware: Expose psci_get_version through psci_ops structure > arm64: Add skeleton to harden the branch predictor against aliasing attacks > arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75 > arm64: Implement branch predictor hardening for affected Cortex-A CPUs > > Xie XiuQi (1): > arm64: entry.S: move SError handling into a C function for future expansion > > Yonghong Song (1): > bpf: perf event change needed for subsequent bpf helpers > > Yury Norov (4): > arm64: introduce separated bits for mm_context_t flags > arm64: cleanup {COMPAT_,}SET_PERSONALITY() macro > arm64: move TASK_* definitions to <asm/processor.h> > arm64: cpu_ops: Add missing 'const' qualifiers > > Documentation/arm64/cpu-feature-registers.txt | 14 +- > Documentation/speculation.txt | 99 +++++ > Documentation/virtual/kvm/devices/arm-vgic.txt | 5 + > arch/arm/include/asm/barrier.h | 75 ++++ > arch/arm/include/asm/cp15.h | 3 + > arch/arm/include/asm/kvm_arm.h | 1 - > arch/arm/include/asm/kvm_asm.h | 2 - > arch/arm/include/asm/kvm_emulate.h | 24 +- > arch/arm/include/asm/kvm_mmu.h | 25 ++ > arch/arm/kvm/hyp/hyp-entry.S | 89 ++++- > arch/arm/mm/fault.c | 29 ++ > arch/arm/mm/fsr-2level.c | 4 +- > arch/arm/mm/fsr-3level.c | 67 +++- > arch/arm/mm/proc-v7-2level.S | 14 +- > arch/arm/mm/proc-v7-3level.S | 22 + > arch/arm/mm/proc-v7.S | 48 ++- > arch/arm64/Kconfig | 59 ++- > arch/arm64/include/asm/asm-bug.h | 54 +++ > arch/arm64/include/asm/asm-uaccess.h | 36 +- > arch/arm64/include/asm/assembler.h | 112 +++--- > arch/arm64/include/asm/barrier.h | 63 +++ > arch/arm64/include/asm/bug.h | 35 +- > arch/arm64/include/asm/cacheflush.h | 4 +- > arch/arm64/include/asm/cpucaps.h | 6 +- > arch/arm64/include/asm/cputype.h | 9 + > arch/arm64/include/asm/daifflags.h | 72 ++++ > arch/arm64/include/asm/efi.h | 24 +- > arch/arm64/include/asm/elf.h | 2 - > arch/arm64/include/asm/esr.h | 3 +- > arch/arm64/include/asm/fixmap.h | 5 + > arch/arm64/include/asm/irq.h | 42 -- > arch/arm64/include/asm/irqflags.h | 40 +- > arch/arm64/include/asm/kernel-pgtable.h | 12 +- > arch/arm64/include/asm/kvm_asm.h | 2 + > arch/arm64/include/asm/kvm_emulate.h | 24 +- > arch/arm64/include/asm/kvm_mmu.h | 59 ++- > arch/arm64/include/asm/memory.h | 75 +++- > arch/arm64/include/asm/mmu.h | 50 +++ > arch/arm64/include/asm/mmu_context.h | 56 +-- > arch/arm64/include/asm/page-def.h | 34 ++ > arch/arm64/include/asm/page.h | 12 +- > arch/arm64/include/asm/pgtable-hwdef.h | 1 + > arch/arm64/include/asm/pgtable-prot.h | 37 +- > arch/arm64/include/asm/pgtable.h | 118 +++--- > arch/arm64/include/asm/proc-fns.h | 6 - > arch/arm64/include/asm/processor.h | 25 +- > arch/arm64/include/asm/ptrace.h | 31 +- > arch/arm64/include/asm/signal32.h | 2 - > arch/arm64/include/asm/stacktrace.h | 61 ++- > arch/arm64/include/asm/string.h | 4 + > arch/arm64/include/asm/sysreg.h | 103 +++++ > arch/arm64/include/asm/thread_info.h | 13 +- > arch/arm64/include/asm/tlbflush.h | 16 +- > arch/arm64/include/asm/traps.h | 11 + > arch/arm64/include/asm/uaccess.h | 38 +- > arch/arm64/include/uapi/asm/hwcap.h | 6 + > arch/arm64/kernel/Makefile | 4 + > arch/arm64/kernel/armv8_deprecated.c | 8 +- > arch/arm64/kernel/asm-offsets.c | 7 +- > arch/arm64/kernel/bpi.S | 87 ++++ > arch/arm64/kernel/cpu_errata.c | 199 +++++++++ > arch/arm64/kernel/cpu_ops.c | 6 +- > arch/arm64/kernel/cpufeature.c | 212 ++++++---- > arch/arm64/kernel/cpuinfo.c | 6 + > arch/arm64/kernel/debug-monitors.c | 5 +- > arch/arm64/kernel/entry.S | 532 ++++++++++++++++++------- > arch/arm64/kernel/head.S | 39 +- > arch/arm64/kernel/hibernate.c | 9 +- > arch/arm64/kernel/irq.c | 40 +- > arch/arm64/kernel/machine_kexec.c | 4 +- > arch/arm64/kernel/perf_callchain.c | 1 - > arch/arm64/kernel/probes/uprobes.c | 2 +- > arch/arm64/kernel/process.c | 25 +- > arch/arm64/kernel/ptrace.c | 5 +- > arch/arm64/kernel/return_address.c | 1 - > arch/arm64/kernel/setup.c | 8 +- > arch/arm64/kernel/signal.c | 18 +- > arch/arm64/kernel/signal32.c | 2 +- > arch/arm64/kernel/smp.c | 14 +- > arch/arm64/kernel/stacktrace.c | 60 +-- > arch/arm64/kernel/suspend.c | 7 +- > arch/arm64/kernel/time.c | 1 - > arch/arm64/kernel/traps.c | 114 ++++-- > arch/arm64/kernel/vdso.c | 15 + > arch/arm64/kernel/vmlinux.lds.S | 40 +- > arch/arm64/kvm/hyp/debug-sr.c | 24 +- > arch/arm64/kvm/hyp/entry.S | 12 + > arch/arm64/kvm/hyp/s2-setup.c | 2 +- > arch/arm64/kvm/hyp/switch.c | 31 +- > arch/arm64/kvm/sys_regs.c | 282 ++++++++++--- > arch/arm64/kvm/vgic-sys-reg-v3.c | 23 +- > arch/arm64/lib/Makefile | 2 + > arch/arm64/lib/clear_user.S | 4 +- > arch/arm64/lib/copy_from_user.S | 4 +- > arch/arm64/lib/copy_in_user.S | 4 +- > arch/arm64/lib/copy_to_user.S | 4 +- > arch/arm64/lib/uaccess_flushcache.c | 47 +++ > arch/arm64/mm/cache.S | 41 +- > arch/arm64/mm/context.c | 70 ++-- > arch/arm64/mm/fault.c | 58 +-- > arch/arm64/mm/flush.c | 16 + > arch/arm64/mm/mmu.c | 31 ++ > arch/arm64/mm/pgd.c | 2 +- > arch/arm64/mm/proc.S | 25 +- > arch/arm64/xen/hypercall.S | 4 +- > debian.master/config/arm64/config.common.arm64 | 2 +- > debian.master/config/config.common.ubuntu | 4 + > drivers/firmware/efi/libstub/arm64-stub.c | 6 +- > drivers/firmware/psci.c | 2 + > include/asm-generic/barrier.h | 76 ++++ > include/linux/perf_event.h | 7 +- > include/linux/psci.h | 1 + > include/linux/thread_info.h | 4 + > kernel/bpf/arraymap.c | 45 ++- > kernel/bpf/hashtab.c | 21 +- > kernel/events/core.c | 15 +- > kernel/fork.c | 3 +- > kernel/trace/bpf_trace.c | 2 +- > virt/kvm/arm/arm.c | 8 +- > virt/kvm/arm/mmu.c | 40 +- > virt/kvm/arm/vgic/vgic-debug.c | 4 +- > virt/kvm/arm/vgic/vgic-its.c | 10 +- > virt/kvm/arm/vgic/vgic-mmio-v2.c | 47 ++- > virt/kvm/arm/vgic/vgic.h | 16 + > 124 files changed, 3336 insertions(+), 1017 deletions(-) > create mode 100644 Documentation/speculation.txt > create mode 100644 arch/arm64/include/asm/asm-bug.h > create mode 100644 arch/arm64/include/asm/daifflags.h > create mode 100644 arch/arm64/include/asm/page-def.h > create mode 100644 arch/arm64/kernel/bpi.S > create mode 100644 arch/arm64/lib/uaccess_flushcache.c >
Applied to artful/master-next branch. Thanks, Kleber On 02/05/18 17:21, Thadeu Lima de Souza Cascardo wrote: > The following changes since commit b9f7706e18abb6276a87776e15596fa898cbafa4: > > x86/mm: Fix overlap of i386 CPU_ENTRY_AREA with FIX_BTMAP (2018-02-02 17:14:07 +0100) > > are available in the git repository at: > > git://git.launchpad.net/~cascardo/ubuntu/+source/linux/+git/artful arm64_kpti > > for you to fetch changes up to ab5d689609038d806079b54d8c2d7b2606e16a26: > > UBUNTU: [Config] UNMAP_KERNEL_AT_EL0=y && HARDEN_BRANCH_PREDICTOR=y (2018-02-05 14:18:04 -0200) > > ---------------------------------------------------------------- > Ard Biesheuvel (5): > arm64: unwind: disregard frame.sp when validating frame pointer > arm64: unwind: reference pt_regs via embedded stack frame > arm64: unwind: remove sp from struct stackframe > arm64: kernel: remove {THREAD,IRQ_STACK}_START_SP > arm64: assembler: allow adr_this_cpu to use the stack pointer > > Arnd Bergmann (1): > arm64: fix pmem interface definition > > Arvind Yadav (1): > KVM: arm/arm64: vgic: constify seq_operations and file_operations > > Catalin Marinas (7): > arm64: Convert pte handling from inline asm to using (cmp)xchg > kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg() > arm64: Move PTE_RDONLY bit handling out of set_pte_at() > arm64: Ignore hardware dirty bit updates in ptep_set_wrprotect() > arm64: Remove the !CONFIG_ARM64_HW_AFDBM alternative code paths > arm64: Implement arch-specific pte_access_permitted() > arm64: kpti: Fix the interaction between ASID switching and software PAN > > Christoffer Dall (2): > KVM: arm/arm64: Extract GICv3 max APRn index calculation > KVM: arm/arm64: Support uaccess of GICC_APRn > > Daniel Borkmann (2): > bpf: inline map in map lookup functions for array and htab > bpf: do not test for PCPU_MIN_UNIT_SIZE before percpu allocations > > Dave Martin (4): > arm64: syscallno is secretly an int, make it official > arm64: Abstract syscallno manipulation > arm64: asm-bug: Renumber macro local labels to avoid clashes > arm64: KVM: Hide unsupported AArch64 CPU features from guests > > Dmitry Safonov (1): > arm64/vdso: Support mremap() for vDSO > > James Morse (9): > KVM: arm/arm64: Fix guest external abort matching > arm64: explicitly mask all exceptions > arm64: introduce an order for exceptions > arm64: Move the async/fiq helpers to explicitly set process context flags > arm64: Mask all exceptions during kernel_exit > arm64: entry.S: Remove disable_dbg > arm64: entry.S: convert el1_sync > arm64: entry.S convert el0_sync > arm64: entry.S: convert elX_irq > > Jayachandran C (3): > arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs > arm64: Branch predictor hardening for Cavium ThunderX2 > UBUNTU: SAUCE: arm64: Branch predictor hardening for Cavium ThunderX2 > > Jinbum Park (1): > arm64: pgd: Mark pgd_cache as __ro_after_init > > Julien Thierry (3): > arm64: Update fault_info table with new exception types > arm64: Use existing defines for mdscr > arm64: Fix single stepping in kernel traps > > Kevin Brodsky (1): > arm64: compat: Remove leftover variable declaration > > Marc Zyngier (10): > KVM: arm/arm64: vITS: Drop its_ite->lpi field > arm64: Move post_ttbr_update_workaround to C code > arm64: KVM: Use per-CPU vector when BP hardening is enabled > arm64: KVM: Make PSCI_VERSION a fast path > UBUNTU: SAUCE: arm: Add BTB invalidation on switch_mm for Cortex-A9, A12 and A17 > UBUNTU: SAUCE: arm: Invalidate BTB on prefetch abort outside of user mapping on Cortex A8, A9, A12 and A17 > UBUNTU: SAUCE: arm: KVM: Invalidate BTB on guest exit > UBUNTU: SAUCE: arm: Add icache invalidation on switch_mm for Cortex-A15 > UBUNTU: SAUCE: arm: Invalidate icache on prefetch abort outside of user mapping on Cortex-A15 > UBUNTU: SAUCE: arm: KVM: Invalidate icache on guest exit for Cortex-A15 > > Mark Rutland (21): > arm64: Add ASM_BUG() > arm64: consistently use bl for C exception entry > arm64: move non-entry code out of .entry.text > arm64: unwind: avoid percpu indirection for irq stack > fork: allow arch-override of VMAP stack alignment > arm64: factor out PAGE_* and CONT_* definitions > arm64: clean up THREAD_* definitions > arm64: clean up irq stack definitions > arm64: move SEGMENT_ALIGN to <asm/memory.h> > efi/arm64: add EFI_KIMG_ALIGN > arm64: factor out entry stack manipulation > arm64: use an irq stack pointer > arm64: add basic VMAP_STACK support > arm64: add on_accessible_stack() > arm64: add VMAP_STACK overflow detection > arm64: Use larger stacks when KASAN is selected > UBUNTU: SAUCE: asm-generic/barrier: add generic nospec helpers > UBUNTU: SAUCE: Documentation: document nospec helpers > UBUNTU: SAUCE: arm64: implement nospec_{load,ptr}() > UBUNTU: SAUCE: arm: implement nospec_ptr() > UBUNTU: SAUCE: bpf: inhibit speculated out-of-bounds pointers > > Paolo Pisati (1): > UBUNTU: [Config] UNMAP_KERNEL_AT_EL0=y && HARDEN_BRANCH_PREDICTOR=y > > Robin Murphy (7): > arm64: mm: Fix set_memory_valid() declaration > arm64: Convert __inval_cache_range() to area-based > arm64: Expose DC CVAP to userspace > arm64: Handle trapped DC CVAP > arm64: Implement pmem API support > arm64: uaccess: Implement *_flushcache variants > arm64: uaccess: Add the uaccess_flushcache.c file > > Shanker Donthineni (3): > arm64: Define cputype macros for Falkor CPU > arm64: Implement branch predictor hardening for Falkor > UBUNTU: SAUCE: arm64: Implement branch predictor hardening for Falkor > > Suzuki K Poulose (3): > arm64: Expose support for optional ARMv8-A features > arm64: Fix the feature type for ID register fields > arm64: capabilities: Handle duplicate entries for a capability > > Will Deacon (32): > arm64: sysreg: Move SPE registers and PSB into common header files > arm64: head: Init PMSCR_EL2.{PA,PCT} when entered at EL2 without VHE > arm64: context: Fix comments and remove pointless smp_wmb() > arm64: SW PAN: Point saved ttbr0 at the zero page when switching to init_mm > arm64: SW PAN: Update saved ttbr0 value on enter_lazy_tlb > arm64: mm: Use non-global mappings for kernel space > arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN > arm64: mm: Move ASID from TTBR0 to TTBR1 > arm64: mm: Remove pre_ttbr0_update_workaround for Falkor erratum #E1003 > arm64: mm: Rename post_ttbr0_update_workaround > arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN > arm64: mm: Allocate ASIDs in pairs > arm64: mm: Add arm64_kernel_unmapped_at_el0 helper > arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI > arm64: entry: Add exception trampoline page for exceptions from EL0 > arm64: mm: Map entry trampoline into trampoline and kernel page tables > arm64: entry: Explicitly pass exception level to kernel_ventry macro > arm64: entry: Hook up entry trampoline to exception vectors > arm64: erratum: Work around Falkor erratum #E1003 in trampoline code > arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks > arm64: entry: Add fake CPU feature for unmapping the kernel at EL0 > arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0 > arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR > arm64: kaslr: Put kernel vectors address in separate data page > arm64: use RET instruction for exiting the trampoline > arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry > arm64: Take into account ID_AA64PFR0_EL1.CSV3 > arm64: cpufeature: Pass capability structure to ->enable callback > drivers/firmware: Expose psci_get_version through psci_ops structure > arm64: Add skeleton to harden the branch predictor against aliasing attacks > arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75 > arm64: Implement branch predictor hardening for affected Cortex-A CPUs > > Xie XiuQi (1): > arm64: entry.S: move SError handling into a C function for future expansion > > Yonghong Song (1): > bpf: perf event change needed for subsequent bpf helpers > > Yury Norov (4): > arm64: introduce separated bits for mm_context_t flags > arm64: cleanup {COMPAT_,}SET_PERSONALITY() macro > arm64: move TASK_* definitions to <asm/processor.h> > arm64: cpu_ops: Add missing 'const' qualifiers > > Documentation/arm64/cpu-feature-registers.txt | 14 +- > Documentation/speculation.txt | 99 +++++ > Documentation/virtual/kvm/devices/arm-vgic.txt | 5 + > arch/arm/include/asm/barrier.h | 75 ++++ > arch/arm/include/asm/cp15.h | 3 + > arch/arm/include/asm/kvm_arm.h | 1 - > arch/arm/include/asm/kvm_asm.h | 2 - > arch/arm/include/asm/kvm_emulate.h | 24 +- > arch/arm/include/asm/kvm_mmu.h | 25 ++ > arch/arm/kvm/hyp/hyp-entry.S | 89 ++++- > arch/arm/mm/fault.c | 29 ++ > arch/arm/mm/fsr-2level.c | 4 +- > arch/arm/mm/fsr-3level.c | 67 +++- > arch/arm/mm/proc-v7-2level.S | 14 +- > arch/arm/mm/proc-v7-3level.S | 22 + > arch/arm/mm/proc-v7.S | 48 ++- > arch/arm64/Kconfig | 59 ++- > arch/arm64/include/asm/asm-bug.h | 54 +++ > arch/arm64/include/asm/asm-uaccess.h | 36 +- > arch/arm64/include/asm/assembler.h | 112 +++--- > arch/arm64/include/asm/barrier.h | 63 +++ > arch/arm64/include/asm/bug.h | 35 +- > arch/arm64/include/asm/cacheflush.h | 4 +- > arch/arm64/include/asm/cpucaps.h | 6 +- > arch/arm64/include/asm/cputype.h | 9 + > arch/arm64/include/asm/daifflags.h | 72 ++++ > arch/arm64/include/asm/efi.h | 24 +- > arch/arm64/include/asm/elf.h | 2 - > arch/arm64/include/asm/esr.h | 3 +- > arch/arm64/include/asm/fixmap.h | 5 + > arch/arm64/include/asm/irq.h | 42 -- > arch/arm64/include/asm/irqflags.h | 40 +- > arch/arm64/include/asm/kernel-pgtable.h | 12 +- > arch/arm64/include/asm/kvm_asm.h | 2 + > arch/arm64/include/asm/kvm_emulate.h | 24 +- > arch/arm64/include/asm/kvm_mmu.h | 59 ++- > arch/arm64/include/asm/memory.h | 75 +++- > arch/arm64/include/asm/mmu.h | 50 +++ > arch/arm64/include/asm/mmu_context.h | 56 +-- > arch/arm64/include/asm/page-def.h | 34 ++ > arch/arm64/include/asm/page.h | 12 +- > arch/arm64/include/asm/pgtable-hwdef.h | 1 + > arch/arm64/include/asm/pgtable-prot.h | 37 +- > arch/arm64/include/asm/pgtable.h | 118 +++--- > arch/arm64/include/asm/proc-fns.h | 6 - > arch/arm64/include/asm/processor.h | 25 +- > arch/arm64/include/asm/ptrace.h | 31 +- > arch/arm64/include/asm/signal32.h | 2 - > arch/arm64/include/asm/stacktrace.h | 61 ++- > arch/arm64/include/asm/string.h | 4 + > arch/arm64/include/asm/sysreg.h | 103 +++++ > arch/arm64/include/asm/thread_info.h | 13 +- > arch/arm64/include/asm/tlbflush.h | 16 +- > arch/arm64/include/asm/traps.h | 11 + > arch/arm64/include/asm/uaccess.h | 38 +- > arch/arm64/include/uapi/asm/hwcap.h | 6 + > arch/arm64/kernel/Makefile | 4 + > arch/arm64/kernel/armv8_deprecated.c | 8 +- > arch/arm64/kernel/asm-offsets.c | 7 +- > arch/arm64/kernel/bpi.S | 87 ++++ > arch/arm64/kernel/cpu_errata.c | 199 +++++++++ > arch/arm64/kernel/cpu_ops.c | 6 +- > arch/arm64/kernel/cpufeature.c | 212 ++++++---- > arch/arm64/kernel/cpuinfo.c | 6 + > arch/arm64/kernel/debug-monitors.c | 5 +- > arch/arm64/kernel/entry.S | 532 ++++++++++++++++++------- > arch/arm64/kernel/head.S | 39 +- > arch/arm64/kernel/hibernate.c | 9 +- > arch/arm64/kernel/irq.c | 40 +- > arch/arm64/kernel/machine_kexec.c | 4 +- > arch/arm64/kernel/perf_callchain.c | 1 - > arch/arm64/kernel/probes/uprobes.c | 2 +- > arch/arm64/kernel/process.c | 25 +- > arch/arm64/kernel/ptrace.c | 5 +- > arch/arm64/kernel/return_address.c | 1 - > arch/arm64/kernel/setup.c | 8 +- > arch/arm64/kernel/signal.c | 18 +- > arch/arm64/kernel/signal32.c | 2 +- > arch/arm64/kernel/smp.c | 14 +- > arch/arm64/kernel/stacktrace.c | 60 +-- > arch/arm64/kernel/suspend.c | 7 +- > arch/arm64/kernel/time.c | 1 - > arch/arm64/kernel/traps.c | 114 ++++-- > arch/arm64/kernel/vdso.c | 15 + > arch/arm64/kernel/vmlinux.lds.S | 40 +- > arch/arm64/kvm/hyp/debug-sr.c | 24 +- > arch/arm64/kvm/hyp/entry.S | 12 + > arch/arm64/kvm/hyp/s2-setup.c | 2 +- > arch/arm64/kvm/hyp/switch.c | 31 +- > arch/arm64/kvm/sys_regs.c | 282 ++++++++++--- > arch/arm64/kvm/vgic-sys-reg-v3.c | 23 +- > arch/arm64/lib/Makefile | 2 + > arch/arm64/lib/clear_user.S | 4 +- > arch/arm64/lib/copy_from_user.S | 4 +- > arch/arm64/lib/copy_in_user.S | 4 +- > arch/arm64/lib/copy_to_user.S | 4 +- > arch/arm64/lib/uaccess_flushcache.c | 47 +++ > arch/arm64/mm/cache.S | 41 +- > arch/arm64/mm/context.c | 70 ++-- > arch/arm64/mm/fault.c | 58 +-- > arch/arm64/mm/flush.c | 16 + > arch/arm64/mm/mmu.c | 31 ++ > arch/arm64/mm/pgd.c | 2 +- > arch/arm64/mm/proc.S | 25 +- > arch/arm64/xen/hypercall.S | 4 +- > debian.master/config/arm64/config.common.arm64 | 2 +- > debian.master/config/config.common.ubuntu | 4 + > drivers/firmware/efi/libstub/arm64-stub.c | 6 +- > drivers/firmware/psci.c | 2 + > include/asm-generic/barrier.h | 76 ++++ > include/linux/perf_event.h | 7 +- > include/linux/psci.h | 1 + > include/linux/thread_info.h | 4 + > kernel/bpf/arraymap.c | 45 ++- > kernel/bpf/hashtab.c | 21 +- > kernel/events/core.c | 15 +- > kernel/fork.c | 3 +- > kernel/trace/bpf_trace.c | 2 +- > virt/kvm/arm/arm.c | 8 +- > virt/kvm/arm/mmu.c | 40 +- > virt/kvm/arm/vgic/vgic-debug.c | 4 +- > virt/kvm/arm/vgic/vgic-its.c | 10 +- > virt/kvm/arm/vgic/vgic-mmio-v2.c | 47 ++- > virt/kvm/arm/vgic/vgic.h | 16 + > 124 files changed, 3336 insertions(+), 1017 deletions(-) > create mode 100644 Documentation/speculation.txt > create mode 100644 arch/arm64/include/asm/asm-bug.h > create mode 100644 arch/arm64/include/asm/daifflags.h > create mode 100644 arch/arm64/include/asm/page-def.h > create mode 100644 arch/arm64/kernel/bpi.S > create mode 100644 arch/arm64/lib/uaccess_flushcache.c >