lkml.org 
[lkml]   [2021]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH v2 34/69] KVM: x86: Add support for vCPU and device-scoped KVM_MEMORY_ENCRYPT_OP
From
Date
On 03/07/21 00:04, isaku.yamahata@intel.com wrote:
> From: Sean Christopherson <sean.j.christopherson@intel.com>
>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
> ---
> arch/x86/include/asm/kvm_host.h | 2 ++
> arch/x86/kvm/x86.c | 12 ++++++++++++
> 2 files changed, 14 insertions(+)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 9791c4bb5198..e3abf077f328 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1377,7 +1377,9 @@ struct kvm_x86_ops {
> int (*pre_leave_smm)(struct kvm_vcpu *vcpu, const char *smstate);
> void (*enable_smi_window)(struct kvm_vcpu *vcpu);
>
> + int (*mem_enc_op_dev)(void __user *argp);
> int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
> + int (*mem_enc_op_vcpu)(struct kvm_vcpu *vcpu, void __user *argp);
> int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
> int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
> int (*vm_copy_enc_context_from)(struct kvm *kvm, unsigned int source_fd);
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index f7ae0a47e555..da9f1081cb03 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -4109,6 +4109,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
> case KVM_GET_SUPPORTED_HV_CPUID:
> r = kvm_ioctl_get_supported_hv_cpuid(NULL, argp);
> break;
> + case KVM_MEMORY_ENCRYPT_OP:
> + r = -EINVAL;
> + if (!kvm_x86_ops.mem_enc_op_dev)
> + goto out;
> + r = kvm_x86_ops.mem_enc_op_dev(argp);
> + break;
> default:
> r = -EINVAL;
> break;
> @@ -5263,6 +5269,12 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
> break;
> }
> #endif
> + case KVM_MEMORY_ENCRYPT_OP:
> + r = -EINVAL;
> + if (!kvm_x86_ops.mem_enc_op_vcpu)
> + goto out;
> + r = kvm_x86_ops.mem_enc_op_vcpu(vcpu, argp);
> + break;
> default:
> r = -EINVAL;
> }
>

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

\
 
 \ /
  Last update: 2021-07-06 16:34    [W:0.532 / U:26.852 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site