Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
---
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 4af195d..88b8f89 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -5779,6 +5779,25 @@ err_1:
return ret;
}
+static int sev_api_version(int *psp_ret)
+{
+ int ret;
+ struct psp_data_status *status;
+
+ status = kzalloc(sizeof(*status), GFP_KERNEL);
+ if (!status)
+ return -ENOMEM;
+
+ ret = psp_platform_status(status, psp_ret);
+ if (ret)
+ goto err;
+
+ ret = (status->api_major << 8) | status->api_minor;
+err:
+ kfree(status);
+ return ret;
+}
+
static int amd_sev_issue_cmd(struct kvm *kvm,
struct kvm_sev_issue_cmd __user *user_data)
{
@@ -5819,6 +5838,10 @@ static int amd_sev_issue_cmd(struct kvm *kvm,
&arg.ret_code);
break;
}
+ case KVM_SEV_API_VERSION: {
+ r = sev_api_version(&arg.ret_code);
+ break;
+ }
default:
break;
}
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