[SRU][Bionic][PULL] Bionic upstream stable patchset 2022-05-06

[Kamal Mostafa]

This pull request (31 commits) includes the following Bionic stable
patchsets:

	Bionic update: upstream stable patchset 2022-05-06
		Ported from the following upstream stable releases:
			v4.14.275
	https://bugs.launchpad.net/bugs/1972006

Note also that the 'stable-next' branch head contains this and all prior
pending upstream stable releases, rebased to master-next:

   git://git.launchpad.net/~ubuntu-kernel-stable/+git/bionic stable-next

 -Kamal

---

The following changes since commit d738be9ecdd52441b109e56dc5cd6aed382cf73a:

  vsock: remove ratelimit unknown ioctl message (2022-05-05 14:43:09 -0700)

are available in the Git repository at:

  git://git.launchpad.net/~ubuntu-kernel-stable/+git/bionic tags/bionic-stable-2022-05-06

for you to fetch changes up to a0a461eb5a5745a5721fc6225182ca3d85535ea6:

  UBUNTU: upstream stable to v4.14.275 (2022-05-06 09:55:09 -0700)

----------------------------------------------------------------
Anshuman Khandual (1):
      arm64: Add Cortex-X2 CPU part definition

Arnd Bergmann (1):
      arm64: arch_timer: avoid unused function warning

James Morse (19):
      arm64: entry.S: Add ventry overflow sanity checks
      arm64: entry: Make the trampoline cleanup optional
      arm64: entry: Free up another register on kpti's tramp_exit path
      arm64: entry: Move the trampoline data page before the text page
      arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
      arm64: entry: Don't assume tramp_vectors is the start of the vectors
      arm64: entry: Move trampoline macros out of ifdef'd section
      arm64: entry: Make the kpti trampoline's kpti sequence optional
      arm64: entry: Allow the trampoline text to occupy multiple pages
      arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
      arm64: entry: Add vectors that have the bhb mitigation sequences
      arm64: entry: Add macro for reading symbol addresses from the trampoline
      arm64: Add percpu vectors for EL1
      arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
      KVM: arm64: Add templates for BHB mitigation sequences
      arm64: Mitigate spectre style branch history side channels
      KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
      arm64: add ID_AA64ISAR2_EL1 sys register
      arm64: Use the clearbhb instruction in mitigations

Kamal Mostafa (4):
      UBUNTU: [Config] updateconfigs for ARM64_ERRATUM_1188873
      Revert "arm64: mmu: add the entry trampolines start/end section markers into sections.h"
      UBUNTU: [Config] updateconfigs for MITIGATE_SPECTRE_BRANCH_HISTORY
      UBUNTU: upstream stable to v4.14.275

Marc Zyngier (4):
      arm64: arch_timer: Add workaround for ARM erratum 1188873
      arm64: Add silicon-errata.txt entry for ARM erratum 1188873
      arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
      arm64: Add part number for Neoverse N1

Rob Herring (1):
      arm64: Add part number for Arm Cortex-A77

Suzuki K Poulose (1):
      arm64: Add Neoverse-N2, Cortex-A710 CPU part definition

 Documentation/arm64/silicon-errata.txt    |   1 +
 arch/arm/include/asm/kvm_host.h           |   6 +
 arch/arm64/Kconfig                        |  24 ++
 arch/arm64/include/asm/assembler.h        |  34 +++
 arch/arm64/include/asm/cpu.h              |   1 +
 arch/arm64/include/asm/cpucaps.h          |   4 +-
 arch/arm64/include/asm/cpufeature.h       |  39 +++
 arch/arm64/include/asm/cputype.h          |  20 ++
 arch/arm64/include/asm/fixmap.h           |   6 +-
 arch/arm64/include/asm/kvm_host.h         |   5 +
 arch/arm64/include/asm/kvm_mmu.h          |   2 +-
 arch/arm64/include/asm/mmu.h              |   8 +-
 arch/arm64/include/asm/sections.h         |   5 +
 arch/arm64/include/asm/sysreg.h           |   5 +
 arch/arm64/include/asm/vectors.h          |  74 ++++++
 arch/arm64/kernel/bpi.S                   |  55 +++++
 arch/arm64/kernel/cpu_errata.c            | 395 +++++++++++++++++++++++++++++-
 arch/arm64/kernel/cpufeature.c            |  21 ++
 arch/arm64/kernel/cpuinfo.c               |   1 +
 arch/arm64/kernel/entry.S                 | 198 +++++++++++----
 arch/arm64/kernel/vmlinux.lds.S           |   2 +-
 arch/arm64/kvm/hyp/hyp-entry.S            |   4 +
 arch/arm64/kvm/hyp/switch.c               |  10 +-
 arch/arm64/mm/mmu.c                       |  13 +-
 debian.master/config/config.common.ubuntu |   2 +
 debian.master/upstream-stable             |   2 +-
 drivers/clocksource/arm_arch_timer.c      |  15 ++
 include/linux/arm-smccc.h                 |   7 +
 virt/kvm/arm/psci.c                       |  12 +
 29 files changed, 914 insertions(+), 57 deletions(-)
 create mode 100644 arch/arm64/include/asm/vectors.h