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authorSteve Rutherford <srutherford@google.com>2021-04-20 12:01:20 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2021-04-21 19:20:04 +0300
commit5569e2e7a650dfffd4df7635662b2f92162d6501 (patch)
tree4aa5ae8c39930a69ba7a1be4aa14fd7a43d28dee /include/linux/psp-sev.h
parentfddecf6a237ee464db7a1771fad6507d8c180c03 (diff)
downloadlinux-5569e2e7a650dfffd4df7635662b2f92162d6501.tar.xz
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/linux/psp-sev.h')
-rw-r--r--include/linux/psp-sev.h10
1 files changed, 10 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