[GIT PULL] KVM/riscv changes for 7.3
Anup Patel
anup at brainfault.org
Sun Aug 16 09:30:31 PDT 2026
Hi Paolo,
There is a small conflict between the kvm-riscv tree and the riscv tree which
slipped through the cracks. This conflict will appear at your end if the 7.3
pull-request from RISC-V tree is merged before your 7.3 pull-request.
This can be resolved as follows:
diff --cc arch/riscv/kvm/vcpu_vector.c
index 3c3183b39ae2a,bf5c94d8786b5..0000000000000
--- a/arch/riscv/kvm/vcpu_vector.c
+++ b/arch/riscv/kvm/vcpu_vector.c
@@@ -56,9 -56,8 +56,8 @@@ void kvm_riscv_vcpu_guest_vector_restor
unsigned long *isa)
{
if ((cntx->sstatus & SR_VS) != SR_VS_OFF) {
- if (riscv_isa_extension_available(isa, v))
+ if (riscv_isa_extension_available(isa, V))
- __kvm_riscv_vector_restore(cntx);
- kvm_riscv_vcpu_vector_clean(cntx);
+ riscv_v_flags_set(riscv_v_flags() |
RISCV_V_VCPU_NEED_RESTORE);
}
}
Best Regards,
Anup
On Sat, Aug 15, 2026 at 4:28 PM Anup Patel <anup at brainfault.org> wrote:
>
> Hi Paolo,
>
> We have the following KVM RISC-V changes for 7.3:
> 1) Svadu/Zicfiss/Zicfilp FWFT support for Guest
> 2) Use try_cmpxchg for IMSIC MRIF RMW
> 3) More arch-specific tracepoints in KVM RISC-V
> 4) Eager Page Splitting for KVM RISC-V
> 5) Optimize hfence request handling for SMP Guests
> 6) Improve dirty log clearing by skipping zero bits in mask
> 7) Guard HFENCE range loops against overflow
> 8) CPU PM notifiers in KVM RISC-V for non-retentive idle states
> 9) Fix kernel-mode vector context save/restore for Guest
>
> In addition to the above, we also have a few small fixes such as
> limit checks, array overflow checks, data type changes, etc.
>
> Please pull.
>
> Regards,
> Anup
>
> The following changes since commit f5098b6bae761e346ebcd9da7f95622c04733cff:
>
> Linux 7.2-rc5 (2026-07-26 14:45:48 -0700)
>
> are available in the Git repository at:
>
> https://github.com/kvm-riscv/linux.git tags/kvm-riscv-7.3-1
>
> for you to fetch changes up to b5060a4aa33d7d78a8c1837ab08ef0c81ea96650:
>
> RISC-V: KVM: fix vcpu vector context handling for kernel-mode vector
> (2026-08-13 13:20:02 +0530)
>
> ----------------------------------------------------------------
> KVM/riscv changes for 7.3
>
> - Svadu/Zicfiss/Zicfilp FWFT support for Guest
> - Use try_cmpxchg for IMSIC MRIF RMW
> - More arch-specific tracepoints in KVM RISC-V
> - Eager Page Splitting for KVM RISC-V
> - Optimize hfence request handling for SMP Guests
> - Improve dirty log clearing by skipping zero bits in mask
> - Guard HFENCE range loops against overflow
> - CPU PM notifiers in KVM RISC-V for non-retentive idle states
> - Fix kernel-mode vector context save/restore for Guest
>
> ----------------------------------------------------------------
> Andy Chiu (3):
> riscv: vector: refactor riscv_v_start_kernel_context
> riscv: vector: allow non-preemptible kernel-mode vector with IRQs off
> RISC-V: KVM: fix vcpu vector context handling for kernel-mode vector
>
> Bingyu.Xian (2):
> RISC-V: KVM: Use unsigned int for vma_pageshift
> RISC-V: KVM: Widen G-stage fault address to gpa_t
>
> Guidong Han (1):
> RISC-V: KVM: Fix PMU event info array size overflow
>
> Inochi Amaoto (11):
> RISC-V: KVM: Add support for Svadu FWFT features
> KVM: riscv: selftests: add Svadu FWFT extension to get-reg-list test
> RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM
> RISC-V: KVM: Add ssp context save/restore
> RISC-V: KVM: Handle software-check exits for VCPU
> RISC-V: KVM: Add support for control-flow integrity FWFT features
> KVM: riscv: selftests: add Zicfiss/Zicfilp extension to get-reg-list test
> RISC-V: KVM: Add SBI extension validate callback
> RISC-V: KVM: Add SBI FWFT validation support
> RISC-V: KVM: Reset the SBI extension when disable it
> RISC-V: KVM: Mark the reset callback of FWFT extension always dirties CSR
>
> Pengpeng Hou (4):
> RISC-V: KVM: Allow memslots ending at the GPA limit
> RISC-V: KVM: Reject overlapping AIA IMSIC address fields
> RISC-V: KVM: Guard HFENCE range loops against overflow
> RISC-V: KVM: Avoid one-word masks for SBI v0.1 all-harts
>
> Wang Yechao (8):
> RISC-V: KVM: Add the split page cache for ioctl context
> RISC-V: KVM: Split huge pages when dirty logging is enabled
> RISC-V: KVM: Remove redundant TLB flush operations
> RISC-V: KVM: Split huge pages during KVM_CLEAR_DIRTY_LOG
> RISC-V: KVM: Add the eager_page_split module parameter
> RISC-V: KVM: Separate req and fallback_req masks in make_xfence_request
> RISC-V: KVM: Introduce make_xfence_request_nodata for FENCE.I requests
> RISC-V: KVM: Improve dirty log clearing by skipping zero bits in mask
>
> Yicong Yang (1):
> RISC-V: KVM: Use try_cmpxchg for IMSIC MRIF RMW
>
> Yong-Xuan Wang (2):
> KVM: RISC-V: Clear former VCPU cache on virtualization disable
> KVM: RISC-V: Add CPU PM notifier for non-retention idle states
>
> Yuhang.Chen (1):
> RISC-V: KVM: Add more arch-specific tracepoints
>
> Yuhang.chen (1):
> RISC-V: KVM: Account VM-scoped allocations to the VM cgroup
>
> Zongmin Zhou (1):
> KVM: riscv: Fix infinite loop in NACL hfence entry allocation
>
> Documentation/admin-guide/kernel-parameters.txt | 7 +-
> arch/riscv/include/asm/csr.h | 1 +
> arch/riscv/include/asm/kvm_aia.h | 3 +
> arch/riscv/include/asm/kvm_gstage.h | 9 +-
> arch/riscv/include/asm/kvm_host.h | 10 ++
> arch/riscv/include/asm/kvm_vcpu_insn.h | 4 +-
> arch/riscv/include/asm/kvm_vcpu_sbi.h | 4 +
> arch/riscv/include/asm/kvm_vcpu_vector.h | 24 +++
> arch/riscv/include/asm/processor.h | 8 +
> arch/riscv/include/asm/simd.h | 16 +-
> arch/riscv/include/asm/vector.h | 5 +
> arch/riscv/include/uapi/asm/kvm.h | 13 ++
> arch/riscv/kernel/kernel_mode_vector.c | 88 +++++++---
> arch/riscv/kvm/aia.c | 42 +++++
> arch/riscv/kvm/aia_aplic.c | 3 +-
> arch/riscv/kvm/aia_device.c | 6 +
> arch/riscv/kvm/aia_imsic.c | 18 +-
> arch/riscv/kvm/gstage.c | 82 ++++++++-
> arch/riscv/kvm/isa.c | 2 +
> arch/riscv/kvm/main.c | 112 ++++++++++--
> arch/riscv/kvm/mmu.c | 108 +++++++++++-
> arch/riscv/kvm/nacl.c | 2 +-
> arch/riscv/kvm/tlb.c | 117 ++++++++++---
> arch/riscv/kvm/trace.h | 81 ++++++++-
> arch/riscv/kvm/vcpu.c | 34 ++++
> arch/riscv/kvm/vcpu_config.c | 2 +
> arch/riscv/kvm/vcpu_exit.c | 20 ++-
> arch/riscv/kvm/vcpu_insn.c | 17 +-
> arch/riscv/kvm/vcpu_onereg.c | 68 +++++++-
> arch/riscv/kvm/vcpu_pmu.c | 16 +-
> arch/riscv/kvm/vcpu_sbi.c | 30 ++++
> arch/riscv/kvm/vcpu_sbi_fwft.c | 207 ++++++++++++++++++++++-
> arch/riscv/kvm/vcpu_sbi_v01.c | 52 +++---
> arch/riscv/kvm/vcpu_vector.c | 26 ++-
> tools/testing/selftests/kvm/riscv/get-reg-list.c | 90 ++++++++++
> 35 files changed, 1169 insertions(+), 158 deletions(-)
More information about the linux-riscv
mailing list