On 8/27/2025 12:29 AM, Pincheng Wang wrote:
Extend the KVM ISA extension ONE_REG interface to allow KVM user space
to detect and enable Zilsd and Zclsd extensions for Guest/VM.
Signed-off-by: Pincheng Wang <pincheng.plct@xxxxxxxxxxxxxxxx>
---
arch/riscv/include/uapi/asm/kvm.h | 2 ++
arch/riscv/kvm/vcpu_onereg.c | 2 ++
2 files changed, 4 insertions(+)
Reviewed-by: Nutty Liu <nutty.liu@xxxxxxxxxxx>
Thanks.
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 5f59fd226cc5..beb7ce06dce8 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -174,6 +174,8 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_ZCD,
KVM_RISCV_ISA_EXT_ZCF,
KVM_RISCV_ISA_EXT_ZCMOP,
+ KVM_RISCV_ISA_EXT_ZCLSD,
+ KVM_RISCV_ISA_EXT_ZILSD,
KVM_RISCV_ISA_EXT_ZAWRS,
KVM_RISCV_ISA_EXT_SMNPM,
KVM_RISCV_ISA_EXT_SSNPM,
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 2e1b646f0d61..8219769fc4a1 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -64,6 +64,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZCD),
KVM_ISA_EXT_ARR(ZCF),
KVM_ISA_EXT_ARR(ZCMOP),
+ KVM_ISA_EXT_ARR(ZCLSD),
KVM_ISA_EXT_ARR(ZFA),
KVM_ISA_EXT_ARR(ZFH),
KVM_ISA_EXT_ARR(ZFHMIN),
@@ -78,6 +79,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZIHINTPAUSE),
KVM_ISA_EXT_ARR(ZIHPM),
KVM_ISA_EXT_ARR(ZIMOP),
+ KVM_ISA_EXT_ARR(ZILSD),
KVM_ISA_EXT_ARR(ZKND),
KVM_ISA_EXT_ARR(ZKNE),
KVM_ISA_EXT_ARR(ZKNH),
