diff mbox series

[RFC,v3,25/59] KVM: x86: Add support for vCPU and device-scoped KVM_MEMORY_ENCRYPT_OP

Message ID 2afae6ea803290415814b96b7ac118bc5364780f.1637799475.git.isaku.yamahata@intel.com (mailing list archive)
State New, archived
Headers show
Series KVM: X86: TDX support | expand

Commit Message

Isaku Yamahata Nov. 25, 2021, 12:20 a.m. UTC 
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(+)

Comments

Thomas Gleixner Nov. 25, 2021, 7:42 p.m. UTC | #1 
On Wed, Nov 24 2021 at 16:20, isaku yamahata wrote:
> From: Sean Christopherson <sean.j.christopherson@intel.com>

Yet another changelog with a significant amount of void content.
diff mbox series

Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f12eec3f05ab..74c3c1629563 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1483,7 +1483,9 @@  struct kvm_x86_ops {
 	int (*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 2e0bccbd3c44..f2091c4b928a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4339,6 +4339,12 @@  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;
@@ -5516,6 +5522,12 @@  long kvm_arch_vcpu_ioctl(struct file *filp,
 	case KVM_SET_DEVICE_ATTR:
 		r = kvm_vcpu_ioctl_device_attr(vcpu, ioctl, argp);
 		break;
+	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;
 	}