Paolo, Radim,
This is the 5.2 pull request for KVM/arm. Pretty substential update
this time, as we finally have SVE support in guests, which makes the
bulk of the changes. Additionnaly, we have the ARMv8.3 Pointer
Authentication support for guests, and some better support for perf
modifiers.
Please pull,
M.
The following changes since commit 8c2ffd9174779014c3fe1f96d9dc3641d9175f00:
Linux 5.1-rc2 (2019-03-24 14:02:26 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-for-v5.2
for you to fetch changes up to 9eecfc22e0bfc7a4c8ca007f083f0ae492d6e891:
KVM: arm64: Fix ptrauth ID register masking logic (2019-05-01 17:21:51 +0100)
----------------------------------------------------------------
KVM/arm updates for 5.2
- guest SVE support
- guest Pointer Authentication support
- Better discrimination of perf counters between host and guests
----------------------------------------------------------------
Amit Daniel Kachhap (3):
KVM: arm64: Add a vcpu flag to control ptrauth for guest
KVM: arm64: Add userspace flag to enable pointer authentication
KVM: arm64: Add capability to advertise ptrauth for guest
Andrew Murray (9):
arm64: arm_pmu: Remove unnecessary isb instruction
arm64: KVM: Encapsulate kvm_cpu_context in kvm_host_data
arm64: KVM: Add accessors to track guest/host only counters
arm64: arm_pmu: Add !VHE support for exclude_host/exclude_guest attributes
arm64: KVM: Enable !VHE support for :G/:H perf event modifiers
arm64: KVM: Enable VHE support for :G/:H perf event modifiers
arm64: KVM: Avoid isb's by using direct pmxevtyper sysreg
arm64: docs: Document perf event attributes
arm64: KVM: Fix perf cycle counter support for VHE
Dave Martin (41):
KVM: Documentation: Document arm64 core registers in detail
arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush
KVM: arm64: Delete orphaned declaration for __fpsimd_enabled()
KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance
KVM: arm64: Add missing #includes to kvm_host.h
arm64/sve: Clarify role of the VQ map maintenance functions
arm64/sve: Check SVE virtualisability
arm64/sve: Enable SVE state tracking for non-task contexts
KVM: arm64: Add a vcpu flag to control SVE visibility for the guest
KVM: arm64: Propagate vcpu into read_id_reg()
KVM: arm64: Support runtime sysreg visibility filtering
KVM: arm64/sve: System register context switch and access support
KVM: arm64/sve: Context switch the SVE registers
KVM: Allow 2048-bit register access via ioctl interface
KVM: arm64: Add missing #include of <linux/string.h> in guest.c
KVM: arm64: Factor out core register ID enumeration
KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus
KVM: arm64/sve: Add SVE support to register access ioctl interface
KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST
arm64/sve: In-kernel vector length availability query interface
KVM: arm/arm64: Add hook for arch-specific KVM initialisation
KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl
KVM: arm64/sve: Add pseudo-register for the guest's vector lengths
KVM: arm64/sve: Allow userspace to enable SVE for vcpus
KVM: arm64: Add a capability to advertise SVE support
KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG
KVM: arm64/sve: Document KVM API extensions for SVE
arm64/sve: Clarify vq map semantics
KVM: arm/arm64: Demote kvm_arm_init_arch_resources() to just set up SVE
KVM: arm: Make vcpu finalization stubs into inline functions
KVM: arm64/sve: sys_regs: Demote redundant vcpu_has_sve() checks to WARNs
KVM: arm64/sve: Clean up UAPI register ID definitions
KVM: arm64/sve: Miscellaneous tidyups in guest.c
KVM: arm64/sve: Make register ioctl access errors more consistent
KVM: arm64/sve: WARN when avoiding divide-by-zero in sve_reg_to_region()
KVM: arm64/sve: Simplify KVM_REG_ARM64_SVE_VLS array sizing
KVM: arm64/sve: Explain validity checks in set_sve_vls()
KVM: arm/arm64: Clean up vcpu finalization function parameter naming
KVM: Clarify capability requirements for KVM_ARM_VCPU_FINALIZE
KVM: Clarify KVM_{SET,GET}_ONE_REG error code documentation
KVM: arm64: Clarify access behaviour for out-of-range SVE register slice IDs
Kristina Martsenko (1):
KVM: arm64: Fix ptrauth ID register masking logic
Marc Zyngier (1):
arm64: KVM: Fix system register enumeration
Mark Rutland (1):
KVM: arm/arm64: Context-switch ptrauth registers
Documentation/arm64/perf.txt | 85 +++++
Documentation/arm64/pointer-authentication.txt | 22 +-
Documentation/virtual/kvm/api.txt | 178 +++++++++++
arch/arm/include/asm/kvm_emulate.h | 2 +
arch/arm/include/asm/kvm_host.h | 26 +-
arch/arm64/Kconfig | 6 +-
arch/arm64/include/asm/fpsimd.h | 29 +-
arch/arm64/include/asm/kvm_asm.h | 3 +-
arch/arm64/include/asm/kvm_emulate.h | 16 +
arch/arm64/include/asm/kvm_host.h | 101 +++++-
arch/arm64/include/asm/kvm_hyp.h | 1 -
arch/arm64/include/asm/kvm_ptrauth.h | 111 +++++++
arch/arm64/include/asm/sysreg.h | 3 +
arch/arm64/include/uapi/asm/kvm.h | 43 +++
arch/arm64/kernel/asm-offsets.c | 7 +
arch/arm64/kernel/cpufeature.c | 2 +-
arch/arm64/kernel/fpsimd.c | 179 +++++++----
arch/arm64/kernel/perf_event.c | 50 ++-
arch/arm64/kernel/signal.c | 5 -
arch/arm64/kvm/Makefile | 2 +-
arch/arm64/kvm/fpsimd.c | 17 +-
arch/arm64/kvm/guest.c | 415 +++++++++++++++++++++++--
arch/arm64/kvm/handle_exit.c | 36 ++-
arch/arm64/kvm/hyp/entry.S | 15 +
arch/arm64/kvm/hyp/switch.c | 80 ++++-
arch/arm64/kvm/pmu.c | 239 ++++++++++++++
arch/arm64/kvm/reset.c | 167 +++++++++-
arch/arm64/kvm/sys_regs.c | 183 +++++++++--
arch/arm64/kvm/sys_regs.h | 25 ++
include/uapi/linux/kvm.h | 7 +
virt/kvm/arm/arm.c | 40 ++-
31 files changed, 1914 insertions(+), 181 deletions(-)
create mode 100644 Documentation/arm64/perf.txt
create mode 100644 arch/arm64/include/asm/kvm_ptrauth.h
create mode 100644 arch/arm64/kvm/pmu.c
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