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Subject[RFC Part2 PATCH v3 18/26] KVM: SVM: Add support for SEV LAUNCH_FINISH command
Date
The command is used for finializing the SEV guest launch process.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
arch/x86/kvm/svm.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9b672eb..7a77197 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -6005,6 +6005,25 @@ static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
return ret;
}

+static int sev_launch_finish(struct kvm *kvm, struct kvm_sev_cmd *argp)
+{
+ struct sev_data_launch_finish *data;
+ int ret;
+
+ if (!sev_guest(kvm))
+ return -ENOTTY;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->handle = sev_get_handle(kvm);
+ ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_FINISH, data, &argp->error);
+
+ kfree(data);
+ return ret;
+}
+
static int svm_memory_encryption_op(struct kvm *kvm, void __user *argp)
{
struct kvm_sev_cmd sev_cmd;
@@ -6032,6 +6051,10 @@ static int svm_memory_encryption_op(struct kvm *kvm, void __user *argp)
r = sev_launch_measure(kvm, &sev_cmd);
break;
}
+ case KVM_SEV_LAUNCH_FINISH: {
+ r = sev_launch_finish(kvm, &sev_cmd);
+ break;
+ }
default:
break;
}
--
2.9.4
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