KVM: RISC-V: Add KVM_REG_RISCV for ONE_REG interface

We will be using ONE_REG interface accessing VCPU registers from
user-space hence we add KVM_REG_RISCV for RISC-V VCPU registers.

Signed-off-by: Anup Patel <[email protected]>
Acked-by: Paolo Bonzini <[email protected]>
Reviewed-by: Paolo Bonzini <[email protected]>
Reviewed-by: Alexander Graf <[email protected]>
Signed-off-by: Paul Walmsley <[email protected]>

include/uapi/linux/kvm.h

@@ -1145,6 +1145,7 @@ struct kvm_dirty_tlb {
 #define KVM_REG_S390		0x5000000000000000ULL
 #define KVM_REG_ARM64		0x6000000000000000ULL
 #define KVM_REG_MIPS		0x7000000000000000ULL
+#define KVM_REG_RISCV		0x8000000000000000ULL
 
 #define KVM_REG_SIZE_SHIFT	52
 #define KVM_REG_SIZE_MASK	0x00f0000000000000ULL