[GIT PULL] KVM/riscv changes for 6.17

[Anup Patel]

Hi Paolo,

We have the following KVM RISC-V changes for 6.17:
1) Enabled ring-based dirty memory tracking
2) Improved "perf kvm stat" to report interrupt events
3) Delegate illegal instruction trap to VS-mode
4) Added SBI FWFT extension for Guest/VM with misaligned
    delegation and pointer masking PMLEN features
5) MMU related improvements for KVM RISC-V for the
    upcoming nested virtualization support

Please pull.

Regards,
Anup

The following changes since commit 4cec89db80ba81fa4524c6449c0494b8ae08eeb0:

  RISC-V: KVM: Move HGEI[E|P] CSR access to IMSIC virtualization
(2025-07-11 18:33:27 +0530)

are available in the Git repository at:

  https://github.com/kvm-riscv/linux.git tags/kvm-riscv-6.17-1

for you to fetch changes up to 583c7288feb43eb8cbb18d08376d328e9a48e72d:

  RISC-V: KVM: Avoid re-acquiring memslot in kvm_riscv_gstage_map()
(2025-07-23 17:20:41 +0530)

----------------------------------------------------------------
KVM/riscv changes for 6.17

- Enabled ring-based dirty memory tracking
- Improved perf kvm stat to report interrupt events
- Delegate illegal instruction trap to VS-mode
- Added SBI FWFT extension for Guest/VM with misaligned
  delegation and pointer masking PMLEN features
- MMU related improvements for KVM RISC-V for upcoming
  nested virtualization

----------------------------------------------------------------
Anup Patel (12):
      RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value
      RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init()
      RISC-V: KVM: Rename and move kvm_riscv_local_tlb_sanitize()
      RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH
      RISC-V: KVM: Don't flush TLB when PTE is unchanged
      RISC-V: KVM: Implement kvm_arch_flush_remote_tlbs_range()
      RISC-V: KVM: Use ncsr_xyz() in kvm_riscv_vcpu_trap_redirect()
      RISC-V: KVM: Factor-out MMU related declarations into separate headers
      RISC-V: KVM: Introduce struct kvm_gstage_mapping
      RISC-V: KVM: Add vmid field to struct kvm_riscv_hfence
      RISC-V: KVM: Factor-out g-stage page table management
      RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs

Clément Léger (4):
      RISC-V: KVM: add SBI extension init()/deinit() functions
      RISC-V: KVM: add SBI extension reset callback
      RISC-V: KVM: add support for FWFT SBI extension
      RISC-V: KVM: add support for SBI_FWFT_MISALIGNED_DELEG

Quan Zhou (4):
      RISC-V: KVM: Enable ring-based dirty memory tracking
      RISC-V: perf/kvm: Add reporting of interrupt events
      RISC-V: KVM: Use find_vma_intersection() to search for intersecting VMAs
      RISC-V: KVM: Avoid re-acquiring memslot in kvm_riscv_gstage_map()

Samuel Holland (2):
      RISC-V: KVM: Fix inclusion of Smnpm in the guest ISA bitmap
      RISC-V: KVM: Add support for SBI_FWFT_POINTER_MASKING_PMLEN

Xu Lu (1):
      RISC-V: KVM: Delegate illegal instruction fault to VS mode

 Documentation/virt/kvm/api.rst                     |   2 +-
 arch/riscv/include/asm/kvm_aia.h                   |   2 +-
 arch/riscv/include/asm/kvm_gstage.h                |  72 +++
 arch/riscv/include/asm/kvm_host.h                  | 109 +----
 arch/riscv/include/asm/kvm_mmu.h                   |  21 +
 arch/riscv/include/asm/kvm_tlb.h                   |  84 ++++
 arch/riscv/include/asm/kvm_vcpu_sbi.h              |  13 +
 arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h         |  33 ++
 arch/riscv/include/asm/kvm_vmid.h                  |  27 ++
 arch/riscv/include/uapi/asm/kvm.h                  |   2 +
 arch/riscv/kvm/Kconfig                             |   1 +
 arch/riscv/kvm/Makefile                            |   2 +
 arch/riscv/kvm/aia_device.c                        |   6 +-
 arch/riscv/kvm/aia_imsic.c                         |  12 +-
 arch/riscv/kvm/gstage.c                            | 338 ++++++++++++++
 arch/riscv/kvm/main.c                              |   3 +-
 arch/riscv/kvm/mmu.c                               | 509 +++++----------------
 arch/riscv/kvm/tlb.c                               | 110 ++---
 arch/riscv/kvm/vcpu.c                              |  48 +-
 arch/riscv/kvm/vcpu_exit.c                         |  20 +-
 arch/riscv/kvm/vcpu_onereg.c                       |  84 ++--
 arch/riscv/kvm/vcpu_sbi.c                          |  53 +++
 arch/riscv/kvm/vcpu_sbi_fwft.c                     | 338 ++++++++++++++
 arch/riscv/kvm/vcpu_sbi_replace.c                  |  17 +-
 arch/riscv/kvm/vcpu_sbi_sta.c                      |   3 +-
 arch/riscv/kvm/vcpu_sbi_v01.c                      |  25 +-
 arch/riscv/kvm/vm.c                                |   7 +-
 arch/riscv/kvm/vmid.c                              |  25 +
 tools/perf/arch/riscv/util/kvm-stat.c              |   6 +-
 tools/perf/arch/riscv/util/riscv_exception_types.h |  35 --
 tools/perf/arch/riscv/util/riscv_trap_types.h      |  57 +++
 31 files changed, 1382 insertions(+), 682 deletions(-)
 create mode 100644 arch/riscv/include/asm/kvm_gstage.h
 create mode 100644 arch/riscv/include/asm/kvm_mmu.h
 create mode 100644 arch/riscv/include/asm/kvm_tlb.h
 create mode 100644 arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h
 create mode 100644 arch/riscv/include/asm/kvm_vmid.h
 create mode 100644 arch/riscv/kvm/gstage.c
 create mode 100644 arch/riscv/kvm/vcpu_sbi_fwft.c
 delete mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
 create mode 100644 tools/perf/arch/riscv/util/riscv_trap_types.h