[PATCH v2 0/7] RISC-V: KVM: Add Svadu/Zicfiss/Zicfilp FWFT support

From: Inochi Amaoto

Date: Mon Jun 01 2026 - 04:49:07 EST


This patchset based on the patchset "RISC-V: KVM: Add Zicfiss/Zicfilp
support".

The patch includes all the function of original patchset from Quan:
adding the Svadu/Zicfiss/Zicfilp FWFT for the RISC-V KVM. And this
patchset already passes the KVM unit test.

Changed from Quan's v1:
- https://lore.kernel.org/kvm/cover.1764509485.git.zhouquan@xxxxxxxxxxx/
1. rebase to the latest master.
2. Split Svadu change as separate patch
3. Fix all build error from the original series
4. Remove the Svadu check in kvm_riscv_vcpu_config_ran_once() and in
favor of the FWFT.
5. Remove the LPE/SSE setting bit in kvm_riscv_vcpu_config_ran_once()
(kvm_riscv_vcpu_setup_config() in original patchset)

Inochi Amaoto (7):
RISC-V: KVM: Add support for Svadu FWFT features
KVM: riscv: selftests: add Svadu FWFT extension to get-reg-list test
RISC-V: KVM: Only enable Svadu extension when Guest/VM requests
RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM
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

arch/riscv/include/asm/csr.h | 1 +
arch/riscv/include/uapi/asm/kvm.h | 5 +
arch/riscv/kvm/isa.c | 2 +
arch/riscv/kvm/vcpu_config.c | 8 +-
arch/riscv/kvm/vcpu_exit.c | 3 +
arch/riscv/kvm/vcpu_sbi_fwft.c | 142 ++++++++++++++++++
.../selftests/kvm/riscv/get-reg-list.c | 22 +++
7 files changed, 179 insertions(+), 4 deletions(-)

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2.54.0