On 29.11.2017 17:41, Christoffer Dall wrote:
> Move vcpu_load() and vcpu_put() into the architecture specific
> implementations of kvm_arch_vcpu_ioctl_translate().
>
> Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
> ---
> arch/powerpc/kvm/booke.c | 2 ++
> arch/x86/kvm/x86.c | 3 +++
> virt/kvm/kvm_main.c | 2 --
> 3 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index cdf0be0..1b491b8 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -1793,7 +1793,9 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
> {
> int r;
>
> + vcpu_load(vcpu);
> r = kvmppc_core_vcpu_translate(vcpu, tr);
> + vcpu_put(vcpu);
> return r;
> }
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index ee357b6..eb70974 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -7661,6 +7661,8 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
> gpa_t gpa;
> int idx;
>
> + vcpu_load(vcpu);
> +
> idx = srcu_read_lock(&vcpu->kvm->srcu);
> gpa = kvm_mmu_gva_to_gpa_system(vcpu, vaddr, NULL);
> srcu_read_unlock(&vcpu->kvm->srcu, idx);
> @@ -7669,6 +7671,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
> tr->writeable = 1;
> tr->usermode = 0;
>
> + vcpu_put(vcpu);
> return 0;
> }
>
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index f360005..0a8a490 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -2627,9 +2627,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
> r = -EFAULT;
> if (copy_from_user(&tr, argp, sizeof(tr)))
> goto out;
> - vcpu_load(vcpu);
> r = kvm_arch_vcpu_ioctl_translate(vcpu, &tr);
> - vcpu_put(vcpu);
> if (r)
> goto out;
> r = -EFAULT;
>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
--
Thanks,
David / dhildenb
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