diff options
| -rw-r--r-- | arch/riscv/include/uapi/asm/kvm.h | 3 | ||||
| -rw-r--r-- | arch/riscv/kvm/vcpu.c | 27 |
2 files changed, 30 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 8985ff234c01..92af6f3f057c 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -49,6 +49,9 @@ struct kvm_sregs { struct kvm_riscv_config { unsigned long isa; unsigned long zicbom_block_size; + unsigned long mvendorid; + unsigned long marchid; + unsigned long mimpid; }; /* CORE registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */ diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 312a8a926867..7c08567097f0 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -276,6 +276,15 @@ static int kvm_riscv_vcpu_get_reg_config(struct kvm_vcpu *vcpu, return -EINVAL; reg_val = riscv_cbom_block_size; break; + case KVM_REG_RISCV_CONFIG_REG(mvendorid): + reg_val = vcpu->arch.mvendorid; + break; + case KVM_REG_RISCV_CONFIG_REG(marchid): + reg_val = vcpu->arch.marchid; + break; + case KVM_REG_RISCV_CONFIG_REG(mimpid): + reg_val = vcpu->arch.mimpid; + break; default: return -EINVAL; } @@ -338,6 +347,24 @@ static int kvm_riscv_vcpu_set_reg_config(struct kvm_vcpu *vcpu, break; case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size): return -EOPNOTSUPP; + case KVM_REG_RISCV_CONFIG_REG(mvendorid): + if (!vcpu->arch.ran_atleast_once) + vcpu->arch.mvendorid = reg_val; + else + return -EBUSY; + break; + case KVM_REG_RISCV_CONFIG_REG(marchid): + if (!vcpu->arch.ran_atleast_once) + vcpu->arch.marchid = reg_val; + else + return -EBUSY; + break; + case KVM_REG_RISCV_CONFIG_REG(mimpid): + if (!vcpu->arch.ran_atleast_once) + vcpu->arch.mimpid = reg_val; + else + return -EBUSY; + break; default: return -EINVAL; } |