Commit a044ef71 authored by Daniel Henrique Barboza's avatar Daniel Henrique Barboza Committed by Anup Patel
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RISC-V: KVM: use ENOENT in *_one_reg() when extension is unavailable 



Following a similar logic as the previous patch let's minimize the EINVAL
usage in *_one_reg() APIs by using ENOENT when an extension that
implements the reg is not available.

For consistency we're also replacing an EOPNOTSUPP instance that should
be an ENOENT since it's an "extension is not available" error.

Signed-off-by: default avatarDaniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Signed-off-by: default avatarAnup Patel <anup@brainfault.org>
parent 2a88f38c

arch/riscv/kvm/vcpu_onereg.c

+3 −3
Original line number Diff line number Diff line
@@ -135,12 +135,12 @@ static int kvm_riscv_vcpu_get_reg_config(struct kvm_vcpu *vcpu, 
		break;

	case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size):

		if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOM))

			return -EINVAL;

			return -ENOENT;

		reg_val = riscv_cbom_block_size;

		break;

	case KVM_REG_RISCV_CONFIG_REG(zicboz_block_size):

		if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOZ))

			return -EINVAL;

			return -ENOENT;

		reg_val = riscv_cboz_block_size;

		break;

	case KVM_REG_RISCV_CONFIG_REG(mvendorid):
@@ -459,7 +459,7 @@ static int riscv_vcpu_set_isa_ext_single(struct kvm_vcpu *vcpu, 


	host_isa_ext = kvm_isa_ext_arr[reg_num];

	if (!__riscv_isa_extension_available(NULL, host_isa_ext))

		return	-EOPNOTSUPP;

		return -ENOENT;



	if (!vcpu->arch.ran_atleast_once) {

		/*