Hi Paolo, We have the following KVM RISC-V changes for 6.10: 1) Support guest breakpoints using ebreak 2) Introduce per-VCPU mp_state_lock and reset_cntx_lock 3) Virtualize SBI PMU snapshot and counter overflow interrupts 4) New selftests for SBI PMU and Guest ebreak Please pull. Regards, Anup The following changes since commit fec50db7033ea478773b159e0e2efb135270e3b7: Linux 6.9-rc3 (2024-04-07 13:22:46 -0700) are available in the Git repository at: https://github.com/kvm-riscv/linux.git tags/kvm-riscv-6.10-1 for you to fetch changes up to 5ef2f3d4e747c7851678ad2b70e37be886a8c9eb: KVM: riscv: selftests: Add commandline option for SBI PMU test (2024-04-26 13:14:15 +0530) ---------------------------------------------------------------- KVM/riscv changes for 6.10 - Support guest breakpoints using ebreak - Introduce per-VCPU mp_state_lock and reset_cntx_lock - Virtualize SBI PMU snapshot and counter overflow interrupts ---------------------------------------------------------------- Atish Patra (24): RISC-V: Fix the typo in Scountovf CSR name RISC-V: Add FIRMWARE_READ_HI definition drivers/perf: riscv: Read upper bits of a firmware counter drivers/perf: riscv: Use BIT macro for shifting operations RISC-V: Add SBI PMU snapshot definitions RISC-V: KVM: Rename the SBI_STA_SHMEM_DISABLE to a generic name RISC-V: Use the minor version mask while computing sbi version drivers/perf: riscv: Fix counter mask iteration for RV32 drivers/perf: riscv: Implement SBI PMU snapshot function RISC-V: KVM: Fix the initial sample period value RISC-V: KVM: No need to update the counter value during reset RISC-V: KVM: No need to exit to the user space if perf event failed RISC-V: KVM: Implement SBI PMU Snapshot feature RISC-V: KVM: Add perf sampling support for guests RISC-V: KVM: Support 64 bit firmware counters on RV32 RISC-V: KVM: Improve firmware counter read function KVM: riscv: selftests: Move sbi definitions to its own header file KVM: riscv: selftests: Add helper functions for extension checks KVM: riscv: selftests: Add Sscofpmf to get-reg-list test KVM: riscv: selftests: Add SBI PMU extension definitions KVM: riscv: selftests: Add SBI PMU selftest KVM: riscv: selftests: Add a test for PMU snapshot functionality KVM: riscv: selftests: Add a test for counter overflow KVM: riscv: selftests: Add commandline option for SBI PMU test Chao Du (3): RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug() RISC-V: KVM: Handle breakpoint exits for VCPU RISC-V: KVM: selftests: Add ebreak test support Yong-Xuan Wang (2): RISCV: KVM: Introduce mp_state_lock to avoid lock inversion RISCV: KVM: Introduce vcpu->reset_cntx_lock arch/riscv/include/asm/csr.h | 5 +- arch/riscv/include/asm/kvm_host.h | 21 +- arch/riscv/include/asm/kvm_vcpu_pmu.h | 16 +- arch/riscv/include/asm/sbi.h | 38 +- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kernel/paravirt.c | 6 +- arch/riscv/kvm/aia.c | 5 + arch/riscv/kvm/main.c | 18 +- arch/riscv/kvm/vcpu.c | 85 ++- arch/riscv/kvm/vcpu_exit.c | 4 + arch/riscv/kvm/vcpu_onereg.c | 6 + arch/riscv/kvm/vcpu_pmu.c | 260 +++++++- arch/riscv/kvm/vcpu_sbi.c | 7 +- arch/riscv/kvm/vcpu_sbi_hsm.c | 42 +- arch/riscv/kvm/vcpu_sbi_pmu.c | 17 +- arch/riscv/kvm/vcpu_sbi_sta.c | 4 +- arch/riscv/kvm/vm.c | 1 + drivers/perf/riscv_pmu.c | 3 +- drivers/perf/riscv_pmu_sbi.c | 316 +++++++++- include/linux/perf/riscv_pmu.h | 8 + tools/testing/selftests/kvm/Makefile | 2 + .../selftests/kvm/include/riscv/processor.h | 49 +- tools/testing/selftests/kvm/include/riscv/sbi.h | 141 +++++ tools/testing/selftests/kvm/include/riscv/ucall.h | 1 + tools/testing/selftests/kvm/lib/riscv/processor.c | 12 + tools/testing/selftests/kvm/riscv/arch_timer.c | 2 +- tools/testing/selftests/kvm/riscv/ebreak_test.c | 82 +++ tools/testing/selftests/kvm/riscv/get-reg-list.c | 4 + tools/testing/selftests/kvm/riscv/sbi_pmu_test.c | 681 +++++++++++++++++++++ tools/testing/selftests/kvm/steal_time.c | 4 +- 30 files changed, 1674 insertions(+), 167 deletions(-) create mode 100644 tools/testing/selftests/kvm/include/riscv/sbi.h create mode 100644 tools/testing/selftests/kvm/riscv/ebreak_test.c create mode 100644 tools/testing/selftests/kvm/riscv/sbi_pmu_test.c
