From: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
To: kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
kvm@vger.kernel.org
Cc: anup@brainfault.org, atishp@atishpatra.org,
ajones@ventanamicro.com,
Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Subject: [PATCH v3 02/10] RISC-V: KVM: use ENOENT in *_one_reg() when extension is unavailable
Date: Thu, 3 Aug 2023 11:00:14 -0300 [thread overview]
Message-ID: <20230803140022.399333-3-dbarboza@ventanamicro.com> (raw)
In-Reply-To: <20230803140022.399333-1-dbarboza@ventanamicro.com>
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: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
arch/riscv/kvm/vcpu_onereg.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 65607f80f8db..546f75930d63 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -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) {
/*
--
2.41.0
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next prev parent reply other threads:[~2023-08-03 14:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-03 14:00 [PATCH v3 00/10] RISC-V: KVM: change get_reg/set_reg error codes Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 01/10] RISC-V: KVM: return ENOENT in *_one_reg() when reg is unknown Daniel Henrique Barboza
2023-08-03 14:00 ` Daniel Henrique Barboza [this message]
2023-08-03 14:00 ` [PATCH v3 03/10] RISC-V: KVM: do not EOPNOTSUPP in set_one_reg() zicbo(m|z) Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 04/10] RISC-V: KVM: do not EOPNOTSUPP in set KVM_REG_RISCV_TIMER_REG Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 05/10] RISC-V: KVM: use EBUSY when !vcpu->arch.ran_atleast_once Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 06/10] RISC-V: KVM: avoid EBUSY when writing same ISA val Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 07/10] RISC-V: KVM: avoid EBUSY when writing the same machine ID val Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 08/10] RISC-V: KVM: avoid EBUSY when writing the same isa_ext val Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 09/10] RISC-V: KVM: Improve vector save/restore errors Daniel Henrique Barboza
2023-08-03 14:00 ` [PATCH v3 10/10] docs: kvm: riscv: document EBUSY in KVM_SET_ONE_REG Daniel Henrique Barboza
2023-08-03 14:56 ` [PATCH v3 00/10] RISC-V: KVM: change get_reg/set_reg error codes Daniel Henrique Barboza
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