[PATCH 4/4] Documentation: KVM: Add SPDX-License-Identifier tag

[Like Xu <like.xu.linux@gmail.com>]

+new file mode 100644
+WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
+#27: FILE: Documentation/virt/kvm/x86/errata.rst:1:

Opportunistically update all other non-added KVM documents and
remove a new extra blank line at EOF for x86/errata.rst.

Signed-off-by: Like Xu <likexu@tencent.com>
---
 Documentation/virt/kvm/vcpu-requests.rst             | 2 ++
 Documentation/virt/kvm/x86/amd-memory-encryption.rst | 2 ++
 Documentation/virt/kvm/x86/errata.rst                | 2 +-
 Documentation/virt/kvm/x86/running-nested-guests.rst | 2 ++
 4 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/virt/kvm/vcpu-requests.rst b/Documentation/virt/kvm/vcpu-requests.rst
index db43ee571f5a..31f62b64e07b 100644
--- a/Documentation/virt/kvm/vcpu-requests.rst
+++ b/Documentation/virt/kvm/vcpu-requests.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 =================
 KVM VCPU Requests
 =================
diff --git a/Documentation/virt/kvm/x86/amd-memory-encryption.rst b/Documentation/virt/kvm/x86/amd-memory-encryption.rst
index 1c6847fff304..2d307811978c 100644
--- a/Documentation/virt/kvm/x86/amd-memory-encryption.rst
+++ b/Documentation/virt/kvm/x86/amd-memory-encryption.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 ======================================
 Secure Encrypted Virtualization (SEV)
 ======================================
diff --git a/Documentation/virt/kvm/x86/errata.rst b/Documentation/virt/kvm/x86/errata.rst
index 806f049b6975..410e0aa63493 100644
--- a/Documentation/virt/kvm/x86/errata.rst
+++ b/Documentation/virt/kvm/x86/errata.rst
@@ -1,3 +1,4 @@
+.. SPDX-License-Identifier: GPL-2.0
 
 =======================================
 Known limitations of CPU virtualization
@@ -36,4 +37,3 @@ Nested virtualization features
 ------------------------------
 
 TBD
-
diff --git a/Documentation/virt/kvm/x86/running-nested-guests.rst b/Documentation/virt/kvm/x86/running-nested-guests.rst
index bd70c69468ae..a27e6768d900 100644
--- a/Documentation/virt/kvm/x86/running-nested-guests.rst
+++ b/Documentation/virt/kvm/x86/running-nested-guests.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 ==============================
 Running nested guests with KVM
 ==============================
-- 
2.35.1