[GIT PULL] KVM/riscv changes for 6.18

[Anup Patel]

Hi Paolo,

We have the following KVM RISC-V changes for 6.18:
1) Added SBI FWFT extension for Guest/VM along with
    corresponding ONE_REG interface
2) Added Zicbop and bfloat16 extensions for Guest/VM
3) Enabled more common KVM selftests for RISC-V
4) Added SBI v3.0 PMU enhancements in KVM and
    perf driver

The perf driver changes in #4 above are going through
KVM RISC-V tree based discussion with Will and Paul [1].

Please pull.

[1] - https://lore.kernel.org/all/CAAhSdy3wJd5uicJntf+WgTaLciiQsqT1QfUmrZ1Jk9qEONRgPw@mail.gmail.com/

Regards,
Anup

The following changes since commit 76eeb9b8de9880ca38696b2fb56ac45ac0a25c6c:

  Linux 6.17-rc5 (2025-09-07 14:22:57 -0700)

are available in the Git repository at:

  https://github.com/kvm-riscv/linux.git tags/kvm-riscv-6.18-1

for you to fetch changes up to dbdadd943a278fb8a24ae4199a668131108034b4:

  RISC-V: KVM: Upgrade the supported SBI version to 3.0 (2025-09-16
11:49:31 +0530)

----------------------------------------------------------------
KVM/riscv changes for 6.18

- Added SBI FWFT extension for Guest/VM with misaligned
  delegation and pointer masking PMLEN features
- Added ONE_REG interface for SBI FWFT extension
- Added Zicbop and bfloat16 extensions for Guest/VM
- Enabled more common KVM selftests for RISC-V such as
  access_tracking_perf_test, dirty_log_perf_test,
  memslot_modification_stress_test, memslot_perf_test,
  mmu_stress_test, and rseq_test
- Added SBI v3.0 PMU enhancements in KVM and perf driver

----------------------------------------------------------------
Anup Patel (6):
      RISC-V: KVM: Set initial value of hedeleg in kvm_arch_vcpu_create()
      RISC-V: KVM: Introduce feature specific reset for SBI FWFT
      RISC-V: KVM: Introduce optional ONE_REG callbacks for SBI extensions
      RISC-V: KVM: Move copy_sbi_ext_reg_indices() to SBI implementation
      RISC-V: KVM: Implement ONE_REG interface for SBI FWFT state
      KVM: riscv: selftests: Add SBI FWFT to get-reg-list test

Atish Patra (8):
      drivers/perf: riscv: Add SBI v3.0 flag
      drivers/perf: riscv: Add raw event v2 support
      RISC-V: KVM: Add support for Raw event v2
      drivers/perf: riscv: Implement PMU event info function
      drivers/perf: riscv: Export PMU event info function
      RISC-V: KVM: No need of explicit writable slot check
      RISC-V: KVM: Implement get event info function
      RISC-V: KVM: Upgrade the supported SBI version to 3.0

Clément Léger (2):
      RISC-V: KVM: add support for FWFT SBI extension
      RISC-V: KVM: add support for SBI_FWFT_MISALIGNED_DELEG

Dong Yang (1):
      KVM: riscv: selftests: Add missing headers for new testcases

Fangyu Yu (1):
      RISC-V: KVM: Write hgatp register with valid mode bits

Guo Ren (Alibaba DAMO Academy) (2):
      RISC-V: KVM: Remove unnecessary HGATP csr_read
      RISC-V: KVM: Prevent HGATP_MODE_BARE passed

Quan Zhou (8):
      RISC-V: KVM: Change zicbom/zicboz block size to depend on the host isa
      RISC-V: KVM: Provide UAPI for Zicbop block size
      RISC-V: KVM: Allow Zicbop extension for Guest/VM
      RISC-V: KVM: Allow bfloat16 extension for Guest/VM
      KVM: riscv: selftests: Add Zicbop extension to get-reg-list test
      KVM: riscv: selftests: Add bfloat16 extension to get-reg-list test
      KVM: riscv: selftests: Use the existing RISCV_FENCE macro in
`rseq-riscv.h`
      KVM: riscv: selftests: Add common supported test cases

Samuel Holland (1):
      RISC-V: KVM: Add support for SBI_FWFT_POINTER_MASKING_PMLEN

 arch/riscv/include/asm/kvm_host.h                  |   4 +
 arch/riscv/include/asm/kvm_vcpu_pmu.h              |   3 +
 arch/riscv/include/asm/kvm_vcpu_sbi.h              |  25 +-
 arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h         |  34 ++
 arch/riscv/include/asm/sbi.h                       |  13 +
 arch/riscv/include/uapi/asm/kvm.h                  |  21 +
 arch/riscv/kvm/Makefile                            |   1 +
 arch/riscv/kvm/gstage.c                            |  27 +-
 arch/riscv/kvm/main.c                              |  33 +-
 arch/riscv/kvm/vcpu.c                              |   3 +-
 arch/riscv/kvm/vcpu_onereg.c                       |  95 ++--
 arch/riscv/kvm/vcpu_pmu.c                          |  74 ++-
 arch/riscv/kvm/vcpu_sbi.c                          | 176 ++++++-
 arch/riscv/kvm/vcpu_sbi_fwft.c                     | 544 +++++++++++++++++++++
 arch/riscv/kvm/vcpu_sbi_pmu.c                      |   3 +
 arch/riscv/kvm/vcpu_sbi_sta.c                      |  72 +--
 arch/riscv/kvm/vmid.c                              |   8 +-
 drivers/perf/riscv_pmu_sbi.c                       | 191 ++++++--
 include/linux/perf/riscv_pmu.h                     |   1 +
 tools/testing/selftests/kvm/Makefile.kvm           |   6 +
 .../selftests/kvm/access_tracking_perf_test.c      |   1 +
 .../selftests/kvm/include/riscv/processor.h        |   1 +
 .../kvm/memslot_modification_stress_test.c         |   1 +
 tools/testing/selftests/kvm/memslot_perf_test.c    |   1 +
 tools/testing/selftests/kvm/riscv/get-reg-list.c   |  60 +++
 tools/testing/selftests/rseq/rseq-riscv.h          |   3 +-
 26 files changed, 1188 insertions(+), 213 deletions(-)
 create mode 100644 arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h
 create mode 100644 arch/riscv/kvm/vcpu_sbi_fwft.c