From: "Singh, Brijesh" <brijesh.singh@amd.com>
To: "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Cc: "Singh, Brijesh" <brijesh.singh@amd.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Joerg Roedel" <joro@8bytes.org>, "Borislav Petkov" <bp@suse.de>,
"Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH v3 06/11] KVM: SVM: Add KVM_SEV_RECEIVE_FINISH command
Date: Wed, 10 Jul 2019 20:13:07 +0000 [thread overview]
Message-ID: <20190710201244.25195-7-brijesh.singh@amd.com> (raw)
In-Reply-To: <20190710201244.25195-1-brijesh.singh@amd.com>
The command finalize the guest receiving process and make the SEV guest
ready for the execution.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86@kernel.org
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
.../virtual/kvm/amd-memory-encryption.rst | 8 +++++++
arch/x86/kvm/svm.c | 23 +++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/Documentation/virtual/kvm/amd-memory-encryption.rst b/Documentation/virtual/kvm/amd-memory-encryption.rst
index f0ec0cbe2aaf..b3319f0221ee 100644
--- a/Documentation/virtual/kvm/amd-memory-encryption.rst
+++ b/Documentation/virtual/kvm/amd-memory-encryption.rst
@@ -350,6 +350,14 @@ Returns: 0 on success, -negative on error
__u32 trans_len;
};
+15. KVM_SEV_RECEIVE_FINISH
+------------------------
+
+After completion of the migration flow, the KVM_SEV_RECEIVE_FINISH command can be
+issued by the hypervisor to make the guest ready for execution.
+
+Returns: 0 on success, -negative on error
+
References
==========
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ea084716f966..3089942f6630 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -7337,6 +7337,26 @@ static int sev_receive_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp)
return ret;
}
+static int sev_receive_finish(struct kvm *kvm, struct kvm_sev_cmd *argp)
+{
+ struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
+ struct sev_data_receive_finish *data;
+ int ret;
+
+ if (!sev_guest(kvm))
+ return -ENOTTY;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->handle = sev->handle;
+ ret = sev_issue_cmd(kvm, SEV_CMD_RECEIVE_FINISH, data, &argp->error);
+
+ kfree(data);
+ return ret;
+}
+
static int svm_mem_enc_op(struct kvm *kvm, void __user *argp)
{
struct kvm_sev_cmd sev_cmd;
@@ -7393,6 +7413,9 @@ static int svm_mem_enc_op(struct kvm *kvm, void __user *argp)
case KVM_SEV_RECEIVE_UPDATE_DATA:
r = sev_receive_update_data(kvm, &sev_cmd);
break;
+ case KVM_SEV_RECEIVE_FINISH:
+ r = sev_receive_finish(kvm, &sev_cmd);
+ break;
default:
r = -EINVAL;
goto out;
--
2.17.1
next prev parent reply other threads:[~2019-07-10 20:14 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-10 20:12 [PATCH v3 00/11] Add AMD SEV guest live migration support Singh, Brijesh
2019-07-10 20:13 ` [PATCH v3 01/11] KVM: SVM: Add KVM_SEV SEND_START command Singh, Brijesh
2019-08-22 10:08 ` Borislav Petkov
2019-08-22 13:23 ` Singh, Brijesh
2019-11-12 18:35 ` Peter Gonda
2019-11-12 22:27 ` Brijesh Singh
2019-11-14 19:27 ` Peter Gonda
2019-11-19 14:06 ` Brijesh Singh
2019-07-10 20:13 ` [PATCH v3 02/11] KVM: SVM: Add KVM_SEND_UPDATE_DATA command Singh, Brijesh
2019-08-22 12:02 ` Borislav Petkov
2019-08-22 13:27 ` Singh, Brijesh
2019-08-22 13:34 ` Borislav Petkov
2019-11-12 22:23 ` Peter Gonda
2019-07-10 20:13 ` [PATCH v3 03/11] KVM: SVM: Add KVM_SEV_SEND_FINISH command Singh, Brijesh
2019-08-26 13:29 ` Borislav Petkov
2019-07-10 20:13 ` [PATCH v3 04/11] KVM: SVM: Add support for KVM_SEV_RECEIVE_START command Singh, Brijesh
2019-07-10 20:13 ` [PATCH v3 05/11] KVM: SVM: Add KVM_SEV_RECEIVE_UPDATE_DATA command Singh, Brijesh
2019-08-27 12:09 ` Borislav Petkov
2019-11-14 21:02 ` Peter Gonda
2019-07-10 20:13 ` Singh, Brijesh [this message]
2019-08-27 12:19 ` [PATCH v3 06/11] KVM: SVM: Add KVM_SEV_RECEIVE_FINISH command Borislav Petkov
2019-07-10 20:13 ` [PATCH v3 07/11] KVM: x86: Add AMD SEV specific Hypercall3 Singh, Brijesh
2019-07-10 20:13 ` [PATCH v3 08/11] KVM: X86: Introduce KVM_HC_PAGE_ENC_STATUS hypercall Singh, Brijesh
2019-07-21 20:57 ` David Rientjes
2019-07-22 17:12 ` Cfir Cohen
2019-07-23 15:31 ` Singh, Brijesh
2019-07-23 15:16 ` Singh, Brijesh
2019-11-25 19:07 ` Peter Gonda
2019-07-10 20:13 ` [PATCH v3 09/11] KVM: x86: Introduce KVM_GET_PAGE_ENC_BITMAP ioctl Singh, Brijesh
2019-08-29 16:26 ` Borislav Petkov
2019-08-29 16:41 ` Singh, Brijesh
2019-08-29 16:56 ` Borislav Petkov
2019-07-10 20:13 ` [PATCH v3 10/11] mm: x86: Invoke hypercall when page encryption status is changed Singh, Brijesh
2019-08-29 16:52 ` Borislav Petkov
2019-08-29 18:07 ` Borislav Petkov
2019-08-29 18:21 ` Thomas Gleixner
2019-08-29 18:32 ` Thomas Gleixner
2019-07-10 20:13 ` [PATCH v3 11/11] KVM: x86: Introduce KVM_SET_PAGE_ENC_BITMAP ioctl Singh, Brijesh
2019-11-15 1:22 ` Steve Rutherford
2019-11-15 1:39 ` Steve Rutherford
2019-07-12 15:52 ` [PATCH v3 00/11] Add AMD SEV guest live migration support Konrad Rzeszutek Wilk
2019-07-12 16:31 ` Singh, Brijesh
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