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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 v4 05/10] RISC-V: KVM: use EBUSY when !vcpu->arch.ran_atleast_once
Date: Thu,  3 Aug 2023 13:32:57 -0300	[thread overview]
Message-ID: <20230803163302.445167-6-dbarboza@ventanamicro.com> (raw)
In-Reply-To: <20230803163302.445167-1-dbarboza@ventanamicro.com>

vcpu_set_reg_config() and vcpu_set_reg_isa_ext() is throwing an
EOPNOTSUPP error when !vcpu->arch.ran_atleast_once. In similar cases
we're throwing an EBUSY error, like in mvendorid/marchid/mimpid
set_reg().

EOPNOTSUPP has a conotation of finality. EBUSY is more adequate in this
case since its a condition/error related to the vcpu lifecycle.

Change these EOPNOTSUPP instances to EBUSY.

Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
 arch/riscv/kvm/vcpu_onereg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index e06256dd8d24..971a2eb83180 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -212,7 +212,7 @@ static int kvm_riscv_vcpu_set_reg_config(struct kvm_vcpu *vcpu,
 			vcpu->arch.isa[0] = reg_val;
 			kvm_riscv_vcpu_fp_reset(vcpu);
 		} else {
-			return -EOPNOTSUPP;
+			return -EBUSY;
 		}
 		break;
 	case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size):
@@ -484,7 +484,7 @@ static int riscv_vcpu_set_isa_ext_single(struct kvm_vcpu *vcpu,
 			return -EINVAL;
 		kvm_riscv_vcpu_fp_reset(vcpu);
 	} else {
-		return -EOPNOTSUPP;
+		return -EBUSY;
 	}
 
 	return 0;
-- 
2.41.0


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  parent reply	other threads:[~2023-08-03 16:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-03 16:32 [PATCH v4 00/10] RISC-V: KVM: change get_reg/set_reg error code Daniel Henrique Barboza
2023-08-03 16:32 ` [PATCH v4 01/10] RISC-V: KVM: return ENOENT in *_one_reg() when reg is unknown Daniel Henrique Barboza
2023-08-03 16:32 ` [PATCH v4 02/10] RISC-V: KVM: use ENOENT in *_one_reg() when extension is unavailable Daniel Henrique Barboza
2023-08-03 16:32 ` [PATCH v4 03/10] RISC-V: KVM: do not EOPNOTSUPP in set_one_reg() zicbo(m|z) Daniel Henrique Barboza
2023-08-03 16:32 ` [PATCH v4 04/10] RISC-V: KVM: do not EOPNOTSUPP in set KVM_REG_RISCV_TIMER_REG Daniel Henrique Barboza
2023-08-03 16:32 ` Daniel Henrique Barboza [this message]
2023-08-03 16:32 ` [PATCH v4 06/10] RISC-V: KVM: avoid EBUSY when writing same ISA val Daniel Henrique Barboza
2023-08-03 16:32 ` [PATCH v4 07/10] RISC-V: KVM: avoid EBUSY when writing the same machine ID val Daniel Henrique Barboza
2023-08-03 16:33 ` [PATCH v4 08/10] RISC-V: KVM: avoid EBUSY when writing the same isa_ext val Daniel Henrique Barboza
2023-08-03 16:33 ` [PATCH v4 09/10] RISC-V: KVM: Improve vector save/restore errors Daniel Henrique Barboza
2023-08-03 17:05   ` Andrew Jones
2023-08-03 17:16     ` Andrew Jones
2023-08-03 16:33 ` [PATCH v4 10/10] docs: kvm: riscv: document EBUSY in KVM_SET_ONE_REG Daniel Henrique Barboza
2023-08-03 16:56 ` [PATCH v4 00/10] RISC-V: KVM: change get_reg/set_reg error code Andrew Jones
2023-08-04  9:11 ` Anup Patel
2023-08-05 16:32   ` Anup Patel

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