linux/arch, branch v5.8

Merge tag 'x86-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-08-02T20:10:42Z

Pull x86 fix from Ingo Molnar: "A single fix for a potential deadlock when printing a message about spurious interrupts" * tag 'x86-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/i8259: Use printk_deferred() to prevent deadlock

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2020-08-02T17:41:00Z

Pull KVM fixes from Paolo Bonzini: "Bugfixes and strengthening the validity checks on inputs from new userspace APIs. Now I know why I shouldn't prepare pull requests on the weekend, it's hard to concentrate if your son is shouting about his latest Minecraft builds in your ear. Fortunately all the patches were ready and I just had to check the test results..." * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Fix disable pause loop exit/pause filtering capability on SVM KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled KVM: arm64: Don't inherit exec permission across page-table levels KVM: arm64: Prevent vcpu_has_ptrauth from generating OOL functions KVM: nVMX: check for invalid hdr.vmx.flags KVM: nVMX: check for required but missing VMCS12 in KVM_SET_NESTED_STATE selftests: kvm: do not set guest mode flag

Merge tag 'powerpc-5.8-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2020-07-31T16:38:39Z

Pull powerpc fix from Michael Ellerman: "Fix a bug introduced by the changes we made to lockless page table walking this cycle. When using the hash MMU, and perf with callchain recording, we can deadlock if the PMI interrupts a hash fault, and the callchain recording then takes a hash fault on the same page. Thanks to Nicholas Piggin, Aneesh Kumar K.V, Anton Blanchard, and Athira Rajeev" * tag 'powerpc-5.8-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/hash: Fix hash_preload running with interrupts enabled

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2020-07-31T16:36:03Z

Pull arm64 fixes from Will Deacon: "The main one is to fix the build after Willy's per-cpu entropy changes this week. Although that was already resolved elsewhere, the arm64 fix here is useful cleanup anyway. Other than that, we've got a fix for building with Clang's integrated assembler and a fix to make our IPv4 checksumming robust against invalid header lengths (this only seems to be triggerable by injected errors). - Fix build breakage due to circular headers - Fix build regression when using Clang's integrated assembler - Fix IPv4 header checksum code to deal with invalid length field - Fix broken path for Arm PMU entry in MAINTAINERS" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: MAINTAINERS: Include drivers subdirs for ARM PMU PROFILING AND DEBUGGING entry arm64: csum: Fix handling of bad packets arm64: Drop unnecessary include from asm/smp.h arm64/alternatives: move length validation inside the subsection

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

2020-07-31T16:33:45Z

Pull ARM fixes from Russell King: - avoid invoking overflow handler for uaccess watchpoints - fix incorrect clock_gettime64 availability - fix EFI crash in create_mapping_late() * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8988/1: mmu: fix crash in EFI calls due to p4d typo in create_mapping_late() ARM: 8987/1: VDSO: Fix incorrect clock_gettime64 ARM: 8986/1: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints

KVM: SVM: Fix disable pause loop exit/pause filtering capability on SVM

2020-07-31T07:20:32Z

'Commit 8566ac8b8e7c ("KVM: SVM: Implement pause loop exit logic in SVM")' drops disable pause loop exit/pause filtering capability completely, I guess it is a merge fault by Radim since disable vmexits capabilities and pause loop exit for SVM patchsets are merged at the same time. This patch reintroduces the disable pause loop exit/pause filtering capability support. Reported-by: Haiwei Li Tested-by: Haiwei Li Fixes: 8566ac8b ("KVM: SVM: Implement pause loop exit logic in SVM") Signed-off-by: Wanpeng Li Message-Id: <1596165141-28874-3-git-send-email-wanpengli@tencent.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini

KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled

2020-07-31T07:20:15Z

Prevent setting the tscdeadline timer if the lapic is hw disabled. Fixes: bce87cce88 (KVM: x86: consolidate different ways to test for in-kernel LAPIC) Cc: Signed-off-by: Wanpeng Li Message-Id: <1596165141-28874-1-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini

Merge tag 'kvmarm-fixes-5.8-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

2020-07-30T22:10:26Z

KVM/arm64 fixes for Linux 5.8, take #3 - Fix a corner case of a new mapping inheriting exec permission without and yet bypassing invalidation of the I-cache - Make sure PtrAuth predicates oinly generate inline code for the non-VHE hypervisor code

ARM: percpu.h: fix build error

2020-07-30T20:01:04Z

Fix build error for the case: defined(CONFIG_SMP) && !defined(CONFIG_CPU_V6) config: keystone_defconfig CC arch/arm/kernel/signal.o In file included from ../include/linux/random.h:14, from ../arch/arm/kernel/signal.c:8: ../arch/arm/include/asm/percpu.h: In function ‘__my_cpu_offset’: ../arch/arm/include/asm/percpu.h:29:34: error: ‘current_stack_pointer’ undeclared (first use in this function); did you mean ‘user_stack_pointer’? : "Q" (*(const unsigned long *)current_stack_pointer)); ^~~~~~~~~~~~~~~~~~~~~ user_stack_pointer Fixes: f227e3ec3b5c ("random32: update the net random state on interrupt and activity") Signed-off-by: Grygorii Strashko Signed-off-by: Linus Torvalds

arm64: csum: Fix handling of bad packets

2020-07-30T16:01:38Z

Although iph is expected to point to at least 20 bytes of valid memory, ihl may be bogus, for example on reception of a corrupt packet. If it happens to be less than 5, we really don't want to run away and dereference 16GB worth of memory until it wraps back to exactly zero... Fixes: 0e455d8e80aa ("arm64: Implement optimised IP checksum helpers") Reported-by: guodeqing Signed-off-by: Robin Murphy Signed-off-by: Will Deacon