Define Secure Encrypted Virtualization (SEV) key management command id
and structure. The command definition is available in SEV KM [1] spec
0.14 and Documentation/virtual/kvm/amd-memory-encryption.txt

[1] http://support.amd.com/TechDocs/55766_SEV-KM API_Specification.pdf

Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: "Radim Krčmář" <[email protected]>
Cc: Joerg Roedel <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Tom Lendacky <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Brijesh Singh <[email protected]>
---
 include/uapi/linux/kvm.h | 141 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)

diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index fc1825440a14..c94844f4d8cc 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1368,6 +1368,147 @@ struct kvm_enc_region {
        __u64 size;
 };
 
+/* Secure Encrypted Virtualization command */
+enum sev_cmd_id {
+       /* Guest initialization commands */
+       KVM_SEV_INIT = 0,
+       KVM_SEV_ES_INIT,
+       /* Guest launch commands */
+       KVM_SEV_LAUNCH_START,
+       KVM_SEV_LAUNCH_UPDATE_DATA,
+       KVM_SEV_LAUNCH_UPDATE_VMSA,
+       KVM_SEV_LAUNCH_SECRET,
+       KVM_SEV_LAUNCH_MEASURE,
+       KVM_SEV_LAUNCH_FINISH,
+       /* Guest migration commands (outgoing) */
+       KVM_SEV_SEND_START,
+       KVM_SEV_SEND_UPDATE_DATA,
+       KVM_SEV_SEND_UPDATE_VMSA,
+       KVM_SEV_SEND_FINISH,
+       /* Guest migration commands (incoming) */
+       KVM_SEV_RECEIVE_START,
+       KVM_SEV_RECEIVE_UPDATE_DATA,
+       KVM_SEV_RECEIVE_UPDATE_VMSA,
+       KVM_SEV_RECEIVE_FINISH,
+       /* Guest status and debug commands */
+       KVM_SEV_GUEST_STATUS,
+       KVM_SEV_DBG_DECRYPT,
+       KVM_SEV_DBG_ENCRYPT,
+       /* Guest certificates commands */
+       KVM_SEV_CERT_EXPORT,
+
+       KVM_SEV_NR_MAX,
+};
+
+struct kvm_sev_cmd {
+       __u32 id;
+       __u64 data;
+       __u32 error;
+       __u32 sev_fd;
+};
+
+struct kvm_sev_launch_start {
+       __u32 handle;
+       __u32 policy;
+       __u64 dh_uaddr;
+       __u32 dh_len;
+       __u64 session_uaddr;
+       __u32 session_len;
+};
+
+struct kvm_sev_launch_update_data {
+       __u64 uaddr;
+       __u32 len;
+};
+
+struct kvm_sev_launch_update_vmsa {
+       __u64 uaddr;
+       __u32 len;
+};
+
+struct kvm_sev_launch_secret {
+       __u64 hdr_uaddr;
+       __u32 hdr_len;
+       __u64 guest_uaddr;
+       __u32 guest_len;
+       __u64 trans_uaddr;
+       __u32 trans_len;
+};
+
+struct kvm_sev_launch_measure {
+       __u64 uaddr;
+       __u32 len;
+};
+
+struct kvm_sev_send_start {
+       __u32 policy;
+       __u64 pdh_cert_uaddr;
+       __u32 pdh_cert_len;
+       __u64 plat_cert_uaddr;
+       __u32 plat_cert_len;
+       __u64 amd_cert_uaddr;
+       __u32 amd_cert_len;
+       __u64 session_uaddr;
+       __u32 session_len;
+};
+
+struct kvm_sev_send_update_data {
+       __u64 hdr_uaddr;
+       __u32 hdr_len;
+       __u64 guest_uaddr;
+       __u32 guest_len;
+       __u64 trans_uaddr;
+       __u32 trans_len;
+};
+
+struct kvm_sev_send_update_vmsa {
+       __u64 hdr_uaddr;
+       __u32 hdr_len;
+       __u64 guest_uaddr;
+       __u32 guest_len;
+       __u64 trans_uaddr;
+       __u32 trans_len;
+};
+
+struct kvm_sev_receive_start {
+       __u32 handle;
+       __u32 policy;
+       __u64 pdh_uaddr;
+       __u32 pdh_len;
+       __u64 session_uaddr;
+       __u32 session_len;
+};
+
+struct kvm_sev_receive_update_data {
+       __u64 hdr_uaddr;
+       __u32 hdr_len;
+       __u64 guest_uaddr;
+       __u32 guest_len;
+       __u64 trans_uaddr;
+       __u32 trans_len;
+};
+
+struct kvm_sev_receive_update_vmsa {
+       __u64 hdr_uaddr;
+       __u32 hdr_len;
+       __u64 guest_uaddr;
+       __u32 guest_len;
+       __u64 trans_uaddr;
+       __u32 trans_len;
+};
+
+struct kvm_sev_guest_status {
+       __u32 handle;
+       __u32 policy;
+       __u32 state;
+};
+
+struct kvm_sev_dbg {
+       __u64 src_uaddr;
+       __u64 dst_uaddr;
+       __u32 len;
+};
+
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU    (1 << 0)
 #define KVM_DEV_ASSIGN_PCI_2_3         (1 << 1)
 #define KVM_DEV_ASSIGN_MASK_INTX       (1 << 2)
-- 
2.9.5

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