Hi Paolo,
Here's the bulk of KVM/arm64 updates for 5.16. The changes are more or
less equaly split between new features (more pKVM stuff trickling in
as it gets written), a bunch of new selftests (timer, vgic), and bug
fixes.
Please pull,
M.
The following changes since commit 9e1ff307c779ce1f0f810c7ecce3d95bbae40896:
Linux 5.15-rc4 (2021-10-03 14:08:47 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-5.16
for you to fetch changes up to 5a2acbbb0179a7ffbb5440b9fa46689f619705ac:
Merge branch kvm/selftests/memslot into kvmarm-master/next (2021-10-21 11:40:03 +0100)
----------------------------------------------------------------
KVM/arm64 updates for Linux 5.16
- More progress on the protected VM front, now with the full
fixed feature set as well as the limitation of some hypercalls
after initialisation.
- Cleanup of the RAZ/WI sysreg handling, which was pointlessly
complicated
- Fixes for the vgic placement in the IPA space, together with a
bunch of selftests
- More memcg accounting of the memory allocated on behalf of a guest
- Timer and vgic selftests
- Workarounds for the Apple M1 broken vgic implementation
- KConfig cleanups
- New kvmarm.mode=none option, for those who really dislike us
----------------------------------------------------------------
Alexandru Elisei (4):
KVM: arm64: Return early from read_id_reg() if register is RAZ
KVM: arm64: Use get_raz_reg() for userspace reads of PMSWINC_EL0
KVM: arm64: Replace get_raz_id_reg() with get_raz_reg()
Documentation: admin-guide: Document side effects when pKVM is enabled
Fuad Tabba (8):
KVM: arm64: Pass struct kvm to per-EC handlers
KVM: arm64: Add missing field descriptor for MDCR_EL2
KVM: arm64: Simplify masking out MTE in feature id reg
KVM: arm64: Add handlers for protected VM System Registers
KVM: arm64: Initialize trap registers for protected VMs
KVM: arm64: Move sanitized copies of CPU features
KVM: arm64: Trap access to pVM restricted features
KVM: arm64: Handle protected guests at 32 bits
Jia He (2):
KVM: arm64: vgic: Add memcg accounting to vgic allocations
KVM: arm64: Add memcg accounting to KVM allocations
Marc Zyngier (33):
KVM: arm64: Turn __KVM_HOST_SMCCC_FUNC_* into an enum (mostly)
Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
Merge branch kvm-arm64/vgic-ipa-checks into kvmarm-master/next
KVM: arm64: Allow KVM to be disabled from the command line
Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
Merge branch kvm-arm64/raz-sysregs into kvmarm-master/next
KVM: arm64: Move __get_fault_info() and co into their own include file
KVM: arm64: Don't include switch.h into nvhe/kvm-main.c
KVM: arm64: Move early handlers to per-EC handlers
Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
KVM: arm64: Fix reporting of endianess when the access originates at EL0
Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1 when exposing a virtual GICv3
KVM: arm64: vgic-v3: Work around GICv3 locally generated SErrors
KVM: arm64: vgic-v3: Reduce common group trapping to ICV_DIR_EL1 when possible
KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS
KVM: arm64: vgic-v3: Align emulated cpuif LPI state machine with the pseudocode
Merge branch kvm-arm64/vgic-fixes-5.16 into kvmarm-master/next
Merge branch kvm-arm64/selftest/timer into kvmarm-master/next
Merge branch kvm-arm64/memory-accounting into kvmarm-master/next
KVM: arm64: Fix early exit ptrauth handling
KVM: arm64: pkvm: Use a single function to expose all id-regs
KVM: arm64: pkvm: Make the ERR/ERX*_EL1 registers RAZ/WI
KVM: arm64: pkvm: Drop AArch32-specific registers
KVM: arm64: pkvm: Drop sysregs that should never be routed to the host
KVM: arm64: pkvm: Handle GICv3 traps as required
KVM: arm64: pkvm: Preserve pending SError on exit from AArch32
KVM: arm64: pkvm: Consolidate include files
KVM: arm64: pkvm: Move kvm_handle_pvm_restricted around
KVM: arm64: pkvm: Pass vpcu instead of kvm to kvm_get_exit_handler_array()
KVM: arm64: pkvm: Give priority to standard traps over pvm handling
Merge branch kvm-arm64/pkvm/fixed-features into kvmarm-master/next
Merge branch kvm/selftests/memslot into kvmarm-master/next
Raghavendra Rao Ananta (14):
KVM: arm64: selftests: Add MMIO readl/writel support
tools: arm64: Import sysreg.h
KVM: arm64: selftests: Introduce ARM64_SYS_KVM_REG
KVM: arm64: selftests: Add support for cpu_relax
KVM: arm64: selftests: Add basic support for arch_timers
KVM: arm64: selftests: Add basic support to generate delays
KVM: arm64: selftests: Add support to disable and enable local IRQs
KVM: arm64: selftests: Maintain consistency for vcpuid type
KVM: arm64: selftests: Add guest support to get the vcpuid
KVM: arm64: selftests: Add light-weight spinlock support
KVM: arm64: selftests: Add basic GICv3 support
KVM: arm64: selftests: Add host support for vGIC
KVM: arm64: selftests: Add arch_timer test
KVM: arm64: selftests: arch_timer: Support vCPU migration
Ricardo Koller (13):
kvm: arm64: vgic: Introduce vgic_check_iorange
KVM: arm64: vgic-v3: Check redist region is not above the VM IPA size
KVM: arm64: vgic-v2: Check cpu interface region is not above the VM IPA size
KVM: arm64: vgic-v3: Check ITS region is not above the VM IPA size
KVM: arm64: vgic: Drop vgic_check_ioaddr()
KVM: arm64: selftests: Make vgic_init gic version agnostic
KVM: arm64: selftests: Make vgic_init/vm_gic_create version agnostic
KVM: arm64: selftests: Add some tests for GICv2 in vgic_init
KVM: arm64: selftests: Add tests for GIC redist/cpuif partially above IPA range
KVM: arm64: selftests: Add test for legacy GICv3 REDIST base partially above IPA range
KVM: arm64: selftests: Add init ITS device test
KVM: selftests: Make memslot_perf_test arch independent
KVM: selftests: Build the memslot tests for arm64
Sean Christopherson (2):
KVM: arm64: Unconditionally include generic KVM's Kconfig
KVM: arm64: Depend on HAVE_KVM instead of OF
Will Deacon (5):
arm64: Prevent kexec and hibernation if is_protected_kvm_enabled()
KVM: arm64: Reject stub hypercalls after pKVM has been initialised
KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall
KVM: arm64: Prevent re-finalisation of pKVM for a given CPU
KVM: arm64: Disable privileged hypercalls after pKVM finalisation
Documentation/admin-guide/kernel-parameters.txt | 6 +-
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/include/asm/kvm_asm.h | 48 +-
arch/arm64/include/asm/kvm_emulate.h | 5 +-
arch/arm64/include/asm/kvm_host.h | 3 +
arch/arm64/include/asm/kvm_hyp.h | 5 +
arch/arm64/include/asm/sysreg.h | 3 +
arch/arm64/kernel/smp.c | 3 +-
arch/arm64/kvm/Kconfig | 10 +-
arch/arm64/kvm/arm.c | 94 +-
arch/arm64/kvm/hyp/include/hyp/fault.h | 75 ++
arch/arm64/kvm/hyp/include/hyp/switch.h | 235 ++--
arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 200 +++
arch/arm64/kvm/hyp/include/nvhe/trap_handler.h | 2 +
arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
arch/arm64/kvm/hyp/nvhe/host.S | 26 +-
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 48 +-
arch/arm64/kvm/hyp/nvhe/mem_protect.c | 11 +-
arch/arm64/kvm/hyp/nvhe/pkvm.c | 185 +++
arch/arm64/kvm/hyp/nvhe/setup.c | 3 +
arch/arm64/kvm/hyp/nvhe/switch.c | 99 ++
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 487 ++++++++
arch/arm64/kvm/hyp/vgic-v3-sr.c | 22 +-
arch/arm64/kvm/hyp/vhe/switch.c | 16 +
arch/arm64/kvm/mmu.c | 2 +-
arch/arm64/kvm/pmu-emul.c | 2 +-
arch/arm64/kvm/reset.c | 2 +-
arch/arm64/kvm/sys_regs.c | 41 +-
arch/arm64/kvm/vgic/vgic-init.c | 2 +-
arch/arm64/kvm/vgic/vgic-irqfd.c | 2 +-
arch/arm64/kvm/vgic/vgic-its.c | 18 +-
arch/arm64/kvm/vgic/vgic-kvm-device.c | 25 +-
arch/arm64/kvm/vgic/vgic-mmio-v3.c | 8 +-
arch/arm64/kvm/vgic/vgic-v3.c | 27 +-
arch/arm64/kvm/vgic/vgic-v4.c | 2 +-
arch/arm64/kvm/vgic/vgic.h | 5 +-
tools/arch/arm64/include/asm/sysreg.h | 1296 ++++++++++++++++++++
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 5 +-
tools/testing/selftests/kvm/aarch64/arch_timer.c | 479 ++++++++
.../selftests/kvm/aarch64/debug-exceptions.c | 30 +-
.../selftests/kvm/aarch64/psci_cpu_on_test.c | 2 +-
tools/testing/selftests/kvm/aarch64/vgic_init.c | 369 ++++--
.../selftests/kvm/include/aarch64/arch_timer.h | 142 +++
.../testing/selftests/kvm/include/aarch64/delay.h | 25 +
tools/testing/selftests/kvm/include/aarch64/gic.h | 21 +
.../selftests/kvm/include/aarch64/processor.h | 90 +-
.../selftests/kvm/include/aarch64/spinlock.h | 13 +
tools/testing/selftests/kvm/include/aarch64/vgic.h | 20 +
tools/testing/selftests/kvm/include/kvm_util.h | 2 +
tools/testing/selftests/kvm/lib/aarch64/gic.c | 95 ++
.../selftests/kvm/lib/aarch64/gic_private.h | 21 +
tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 240 ++++
tools/testing/selftests/kvm/lib/aarch64/gic_v3.h | 70 ++
.../testing/selftests/kvm/lib/aarch64/processor.c | 24 +-
tools/testing/selftests/kvm/lib/aarch64/spinlock.c | 27 +
tools/testing/selftests/kvm/lib/aarch64/vgic.c | 70 ++
tools/testing/selftests/kvm/memslot_perf_test.c | 56 +-
59 files changed, 4373 insertions(+), 451 deletions(-)
create mode 100644 arch/arm64/kvm/hyp/include/hyp/fault.h
create mode 100644 arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
create mode 100644 arch/arm64/kvm/hyp/nvhe/pkvm.c
create mode 100644 arch/arm64/kvm/hyp/nvhe/sys_regs.c
create mode 100644 tools/arch/arm64/include/asm/sysreg.h
create mode 100644 tools/testing/selftests/kvm/aarch64/arch_timer.c
create mode 100644 tools/testing/selftests/kvm/include/aarch64/arch_timer.h
create mode 100644 tools/testing/selftests/kvm/include/aarch64/delay.h
create mode 100644 tools/testing/selftests/kvm/include/aarch64/gic.h
create mode 100644 tools/testing/selftests/kvm/include/aarch64/spinlock.h
create mode 100644 tools/testing/selftests/kvm/include/aarch64/vgic.h
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic.c
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_private.h
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_v3.h
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/spinlock.c
create mode 100644 tools/testing/selftests/kvm/lib/aarch64/vgic.c
