diff options
| author | Steve Rutherford <srutherford@google.com> | 2021-04-20 05:01:20 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-21 12:20:04 -0400 |
| commit | 5569e2e7a650dfffd4df7635662b2f92162d6501 (patch) | |
| tree | 4aa5ae8c39930a69ba7a1be4aa14fd7a43d28dee /include | |
| parent | fddecf6a237ee464db7a1771fad6507d8c180c03 (diff) | |
KVM: SVM: Add support for KVM_SEV_SEND_CANCEL command
After completion of SEND_START, but before SEND_FINISH, the source VMM can
issue the SEND_CANCEL command to stop a migration. This is necessary so
that a cancelled migration can restart with a new target later.
Reviewed-by: Nathan Tempelman <natet@google.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Steve Rutherford <srutherford@google.com>
Message-Id: <20210412194408.2458827-1-srutherford@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/psp-sev.h | 10 | ||||
| -rw-r--r-- | include/uapi/linux/kvm.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 73da511b9423..d48a7192e881 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -73,6 +73,7 @@ enum sev_cmd { SEV_CMD_SEND_UPDATE_DATA = 0x041, SEV_CMD_SEND_UPDATE_VMSA = 0x042, SEV_CMD_SEND_FINISH = 0x043, + SEV_CMD_SEND_CANCEL = 0x044, /* Guest migration commands (incoming) */ SEV_CMD_RECEIVE_START = 0x050, @@ -393,6 +394,15 @@ struct sev_data_send_finish { } __packed; /** + * struct sev_data_send_cancel - SEND_CANCEL command parameters + * + * @handle: handle of the VM to process + */ +struct sev_data_send_cancel { + u32 handle; /* In */ +} __packed; + +/** * struct sev_data_receive_start - RECEIVE_START command parameters * * @handle: handle of the VM to perform receive operation diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d07be69f402f..5d1adeb13739 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1674,6 +1674,8 @@ enum sev_cmd_id { KVM_SEV_CERT_EXPORT, /* Attestation report */ KVM_SEV_GET_ATTESTATION_REPORT, + /* Guest Migration Extension */ + KVM_SEV_SEND_CANCEL, KVM_SEV_NR_MAX, }; |