On Thu, Aug 28, 2025 at 10:00 PM Oliver Upton <oliver.upton@xxxxxxxxx> wrote: > > Hi Paolo, > > Unfortunately work had me sidelined for an extended period of time, so > after much delay here is a pile of fixes for 6.17. This is a bit larger > than I would like, but the handling of on-CPU sysregs has had multiple ugly > bugs and a localized fix would just be unnecessary churn. It's fine, I added some extra context from the commit message in my pull request to Linus. Thanks, Paolo > Details in the tag; please pull. > > Thanks, > Oliver > > The following changes since commit 18ec25dd0e97653cdb576bb1750c31acf2513ea7: > > KVM: arm64: selftests: Add FEAT_RAS EL2 registers to get-reg-list (2025-07-28 08:28:05 -0700) > > are available in the Git repository at: > > https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git/ tags/kvmarm-fixes-6.17-1 > > for you to fetch changes up to ee372e645178802be7cb35263de941db7b2c5354: > > KVM: arm64: nv: Fix ATS12 handling of single-stage translation (2025-08-28 12:44:42 -0700) > > ---------------------------------------------------------------- > KVM/arm64 changes for 6.17, take #2 > > - Correctly handle 'invariant' system registers for protected VMs > > - Improved handling of VNCR data aborts, including external aborts > > - Fixes for handling of FEAT_RAS for NV guests, providing a sane > fault context during SEA injection and preventing the use of > RASv1p1 fault injection hardware > > - Ensure that page table destruction when a VM is destroyed gives an > opportunity to reschedule > > - Large fix to KVM's infrastructure for managing guest context loaded > on the CPU, addressing issues where the output of AT emulation > doesn't get reflected to the guest > > - Fix AT S12 emulation to actually perform stage-2 translation when > necessary > > - Avoid attempting vLPI irqbypass when GICv4 has been explicitly > disabled for a VM > > - Minor KVM + selftest fixes > > ---------------------------------------------------------------- > Arnd Bergmann (1): > kvm: arm64: use BUG() instead of BUG_ON(1) > > Fuad Tabba (3): > KVM: arm64: Handle AIDR_EL1 and REVIDR_EL1 in host for protected VMs > KVM: arm64: Sync protected guest VBAR_EL1 on injecting an undef exception > arm64: vgic-v2: Fix guest endianness check in hVHE mode > > Marc Zyngier (14): > KVM: arm64: nv: Properly check ESR_EL2.VNCR on taking a VNCR_EL2 related fault > KVM: arm64: selftest: Add standalone test checking for KVM's own UUID > KVM: arm64: Correctly populate FAR_EL2 on nested SEA injection > arm64: Add capability denoting FEAT_RASv1p1 > KVM: arm64: Handle RASv1p1 registers > KVM: arm64: Ignore HCR_EL2.FIEN set by L1 guest's EL2 > KVM: arm64: Make ID_AA64PFR0_EL1.RAS writable > KVM: arm64: Make ID_AA64PFR1_EL1.RAS_frac writable > KVM: arm64: Get rid of ARM64_FEATURE_MASK() > KVM: arm64: Check for SYSREGS_ON_CPU before accessing the 32bit state > KVM: arm64: Simplify sysreg access on exception delivery > KVM: arm64: Fix vcpu_{read,write}_sys_reg() accessors > KVM: arm64: Remove __vcpu_{read,write}_sys_reg_{from,to}_cpu() > KVM: arm64: nv: Fix ATS12 handling of single-stage translation > > Mark Brown (1): > KVM: arm64: selftests: Sync ID_AA64MMFR3_EL1 in set_id_regs > > Oliver Upton (1): > KVM: arm64: nv: Handle SEAs due to VNCR redirection > > Raghavendra Rao Ananta (3): > KVM: arm64: Don't attempt vLPI mappings when vPE allocation is disabled > KVM: arm64: Split kvm_pgtable_stage2_destroy() > KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables > > arch/arm64/include/asm/kvm_host.h | 111 +----- > arch/arm64/include/asm/kvm_mmu.h | 1 + > arch/arm64/include/asm/kvm_pgtable.h | 30 ++ > arch/arm64/include/asm/kvm_pkvm.h | 4 +- > arch/arm64/include/asm/kvm_ras.h | 25 -- > arch/arm64/include/asm/sysreg.h | 3 - > arch/arm64/kernel/cpufeature.c | 24 ++ > arch/arm64/kvm/arm.c | 8 +- > arch/arm64/kvm/at.c | 6 +- > arch/arm64/kvm/emulate-nested.c | 2 +- > arch/arm64/kvm/hyp/exception.c | 20 +- > arch/arm64/kvm/hyp/nvhe/list_debug.c | 2 +- > arch/arm64/kvm/hyp/nvhe/sys_regs.c | 5 + > arch/arm64/kvm/hyp/pgtable.c | 25 +- > arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 2 +- > arch/arm64/kvm/hyp/vhe/switch.c | 5 +- > arch/arm64/kvm/mmu.c | 65 +++- > arch/arm64/kvm/nested.c | 5 +- > arch/arm64/kvm/pkvm.c | 11 +- > arch/arm64/kvm/sys_regs.c | 419 ++++++++++++++------- > arch/arm64/kvm/vgic/vgic-mmio-v3.c | 8 + > arch/arm64/kvm/vgic/vgic-mmio.c | 2 +- > arch/arm64/kvm/vgic/vgic.h | 10 +- > arch/arm64/tools/cpucaps | 1 + > tools/arch/arm64/include/asm/sysreg.h | 3 - > tools/testing/selftests/kvm/Makefile.kvm | 1 + > .../testing/selftests/kvm/arm64/aarch32_id_regs.c | 2 +- > .../testing/selftests/kvm/arm64/debug-exceptions.c | 12 +- > tools/testing/selftests/kvm/arm64/kvm-uuid.c | 70 ++++ > tools/testing/selftests/kvm/arm64/no-vgic-v3.c | 4 +- > .../testing/selftests/kvm/arm64/page_fault_test.c | 6 +- > tools/testing/selftests/kvm/arm64/set_id_regs.c | 9 +- > .../selftests/kvm/arm64/vpmu_counter_access.c | 2 +- > tools/testing/selftests/kvm/lib/arm64/processor.c | 6 +- > 34 files changed, 560 insertions(+), 349 deletions(-) > delete mode 100644 arch/arm64/include/asm/kvm_ras.h > create mode 100644 tools/testing/selftests/kvm/arm64/kvm-uuid.c >
