From: Anup Patel <apatel@ventanamicro.com>
To: Atish Patra <atish.patra@linux.dev>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Alexandre Ghiti <alex@ghiti.fr>,
Andrew Jones <ajones@ventanamicro.com>,
Anup Patel <anup@brainfault.org>,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/13] RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value
Date: Mon, 9 Jun 2025 10:31:38 +0530 [thread overview]
Message-ID: <CAK9=C2WWtOdG9aYhmrTnDNoV9f0VBYUENJ8utKd=4G9-1SyzdQ@mail.gmail.com> (raw)
In-Reply-To: <ed5276d8-5169-47fc-bef2-bde7b8979e7e@linux.dev>
On Fri, Jun 6, 2025 at 5:46 AM Atish Patra <atish.patra@linux.dev> wrote:
>
>
> On 6/4/25 11:14 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().
>
> currently, kvm_riscv_vcpu_alloc_vector_context returns -ENOMEM only.
>
> Do you have some plans to return different errors in the future ?
Even if kvm_riscv_vcpu_alloc_vector_context() always returns -ENOMEM,
the caller should not assume anything about the return value.
>
> Otherwise, the code remains same before and after.
>
> > Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> > ---
> > arch/riscv/kvm/vcpu.c | 6 ++++--
> > 1 file changed, 4 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
> > index e0a01af426ff..6a1914b21ec3 100644
> > --- a/arch/riscv/kvm/vcpu.c
> > +++ b/arch/riscv/kvm/vcpu.c
> > @@ -148,8 +148,10 @@ 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;
> > + /* Setup VCPU vector context */
> The function name is pretty self explanatory. So no need of this comment ?
Yes, no need for this comment. I will drop it in the next revision.
> > + rc = kvm_riscv_vcpu_alloc_vector_context(vcpu);
> > + if (rc)
> > + return rc;
> >
> > /* Setup VCPU timer */
> > kvm_riscv_vcpu_timer_init(vcpu);
>
Regards,
Anup
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next prev parent reply other threads:[~2025-06-09 5:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-05 6:14 [PATCH 00/13] MMU related improvements for KVM RISC-V Anup Patel
2025-06-05 6:14 ` [PATCH 01/13] RISC-V: KVM: Fix the size parameter check in SBI SFENCE calls Anup Patel
2025-06-06 0:00 ` Atish Patra
2025-06-09 4:43 ` Anup Patel
2025-06-05 6:14 ` [PATCH 02/13] RISC-V: KVM: Don't treat SBI HFENCE calls as NOPs Anup Patel
2025-06-06 0:11 ` Atish Patra
2025-06-09 4:43 ` Anup Patel
2025-06-05 6:14 ` [PATCH 03/13] RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value Anup Patel
2025-06-06 0:16 ` Atish Patra
2025-06-09 5:01 ` Anup Patel [this message]
2025-06-05 6:14 ` [PATCH 04/13] RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init() Anup Patel
2025-06-06 0:52 ` Atish Patra
2025-06-06 4:14 ` Nutty Liu
2025-06-05 6:14 ` [PATCH 05/13] RISC-V: KVM: Rename and move kvm_riscv_local_tlb_sanitize() Anup Patel
2025-06-06 1:21 ` Atish Patra
2025-06-06 4:25 ` Nutty Liu
2025-06-05 6:14 ` [PATCH 06/13] RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH Anup Patel
2025-06-06 1:24 ` Atish Patra
2025-06-05 6:14 ` [PATCH 07/13] RISC-V: KVM: Don't flush TLB in gstage_set_pte() when PTE is unchanged Anup Patel
2025-06-05 6:14 ` [PATCH 08/13] RISC-V: KVM: Implement kvm_arch_flush_remote_tlbs_range() Anup Patel
2025-06-05 6:14 ` [PATCH 09/13] RISC-V: KVM: Factor-out MMU related declarations into separate headers Anup Patel
2025-06-05 6:14 ` [PATCH 10/13] RISC-V: KVM: Introduce struct kvm_gstage_mapping Anup Patel
2025-06-05 6:14 ` [PATCH 11/13] RISC-V: KVM: Add vmid field to struct kvm_riscv_hfence Anup Patel
2025-06-05 6:14 ` [PATCH 12/13] RISC-V: KVM: Factor-out g-stage page table management Anup Patel
2025-06-05 6:14 ` [PATCH 13/13] RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs Anup Patel
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