Re: [RFC PATCH 2/2] KVM: TDX: Kick off vCPUs when SEAMCALL is busy during TD page removal

Edgecombe, Rick P
2024-11-26T00:47:46Z

On Thu, 2024-11-21 at 19:57 +0800, Yan Zhao wrote:
>
> +static void tdx_no_vcpus_enter_start(struct kvm *kvm)
> +{

I wonder if an mmu write lock assert here would be excessive.

> + kvm_make_all_cpus_request(kvm, KVM_REQ_NO_VCPU_ENTER_INPROGRESS);
> +}
> +
> +static void tdx_no_vcpus_enter_stop(struct kvm *kvm)
> +{
> + struct kvm_vcpu *vcpu;
> + unsigned long i;
> +
> + kvm_for_each_vcpu(i, vcpu, kvm)
> + kvm_clear_request(KVM_REQ_NO_VCPU_ENTER_INPROGRESS, vcpu);
> +}
> +