[v3] MMU related improvements for KVM RISC-V

[PATCH v3 01/12] RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value

Posted by Anup Patel 3 months, 3 weeks ago

The kvm_riscv_vcpu_alloc_vector_context() does return an error code
upon failure so don't ignore this in kvm_arch_vcpu_create().

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 arch/riscv/kvm/vcpu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index 303aa0a8a5a1..b467dc1f4c7f 100644
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -148,8 +148,9 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
 
 	spin_lock_init(&vcpu->arch.reset_state.lock);
 
-	if (kvm_riscv_vcpu_alloc_vector_context(vcpu))
-		return -ENOMEM;
+	rc = kvm_riscv_vcpu_alloc_vector_context(vcpu);
+	if (rc)
+		return rc;
 
 	/* Setup VCPU timer */
 	kvm_riscv_vcpu_timer_init(vcpu);
-- 
2.43.0

Re: [PATCH v3 01/12] RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value

Posted by Nutty Liu 3 months, 2 weeks ago

On 6/18/2025 7:35 PM, Anup Patel wrote:
> The kvm_riscv_vcpu_alloc_vector_context() does return an error code
> upon failure so don't ignore this in kvm_arch_vcpu_create().
>
> Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> ---
>   arch/riscv/kvm/vcpu.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
> index 303aa0a8a5a1..b467dc1f4c7f 100644
> --- a/arch/riscv/kvm/vcpu.c
> +++ b/arch/riscv/kvm/vcpu.c
> @@ -148,8 +148,9 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
>   
>   	spin_lock_init(&vcpu->arch.reset_state.lock);
>   
> -	if (kvm_riscv_vcpu_alloc_vector_context(vcpu))
> -		return -ENOMEM;
> +	rc = kvm_riscv_vcpu_alloc_vector_context(vcpu);
> +	if (rc)
> +		return rc;
>   
>   	/* Setup VCPU timer */
>   	kvm_riscv_vcpu_timer_init(vcpu);

Reviewed-by: Nutty Liu<liujingqi@lanxincomputing.com>

Thanks,
Nutty

Re: [PATCH v3 01/12] RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value

Posted by Atish Patra 3 months, 2 weeks ago

On 6/18/25 4:35 AM, Anup Patel wrote:
> The kvm_riscv_vcpu_alloc_vector_context() does return an error code
> upon failure so don't ignore this in kvm_arch_vcpu_create().
>
> Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> ---
>   arch/riscv/kvm/vcpu.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
> index 303aa0a8a5a1..b467dc1f4c7f 100644
> --- a/arch/riscv/kvm/vcpu.c
> +++ b/arch/riscv/kvm/vcpu.c
> @@ -148,8 +148,9 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
>   
>   	spin_lock_init(&vcpu->arch.reset_state.lock);
>   
> -	if (kvm_riscv_vcpu_alloc_vector_context(vcpu))
> -		return -ENOMEM;
> +	rc = kvm_riscv_vcpu_alloc_vector_context(vcpu);
> +	if (rc)
> +		return rc;
>   
>   	/* Setup VCPU timer */
>   	kvm_riscv_vcpu_timer_init(vcpu);


Reviewed-by: Atish Patra <atishp@rivosinc.com>