From: Fan Ni <fan...@samsung.com>
Add a new QAPI "qmp-cxl-process-mctp-message" to process the MCTP
request cached in the shared buffer from FM VM.
Signed-off-by: Fan Ni <fan...@samsung.com>
---
hw/mem/cxl_type3.c | 41 ++++++++++++++++++++++++++++++++++++++++
hw/mem/cxl_type3_stubs.c | 5 +++++
qapi/cxl.json | 18 ++++++++++++++++++
3 files changed, 64 insertions(+)
diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index 7f85616ca1..f7ac8e8da7 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -1614,6 +1614,47 @@ void cxl_clear_poison_list_overflowed(CXLType3Dev *ct3d)
ct3d->poison_list_overflow_ts = 0;
}
+void qmp_cxl_process_mctp_message(const char *cci_name, Error **errp)
+{
+ int i;
+ struct CXLCCINamePtrMap *map;
+ struct CXLMCTPCommandBuf *buf;
+ CXLCCI *cci = NULL;
+ CXLType3Dev *ct3d;
+
+ if (!cci_map_buf) {
+ error_setg(errp, "CCI name mapping buffer not setup");
+ return;
+ }
+
+ for (i = 0; i < cci_map_buf->num_mappings; i++) {
+ map = &cci_map_buf->maps[i];
+ if (!strcmp(map->cci_name, cci_name)) {
+ cci = (CXLCCI *) map->cci_pointer;
+ break;
+ }
+ }
+ if (!cci) {
+ error_setg(errp, "CCI instance is not found with name: %s", cci_name);
+ return;
+ }
+ ct3d = CXL_TYPE3(OBJECT(cci->d));
+ if (!ct3d) {
+ error_setg(errp, "No Type3 device associated with the cci");
+ return;
+ }
+ if (ct3d->mctp_shared_buffer->status != 1) {
+ error_setg(errp, "MCTP buffer status is not set to 1, skip");
+ return;
+ }
+ buf = &ct3d->mctp_shared_buffer->command_buf;
+ buf->ret_val = cxl_process_cci_message(cci, buf->command_set, buf->command,
+ buf->len_in, buf->payload,
+ &buf->len_out, buf->payload_out,
+ &buf->bg_started);
+ ct3d->mctp_shared_buffer->status = 0;
+}
+
void qmp_cxl_inject_poison(const char *path, uint64_t start, uint64_t length,
Error **errp)
{
diff --git a/hw/mem/cxl_type3_stubs.c b/hw/mem/cxl_type3_stubs.c
index c1a5e4a7c1..dbf18f2af2 100644
--- a/hw/mem/cxl_type3_stubs.c
+++ b/hw/mem/cxl_type3_stubs.c
@@ -92,3 +92,8 @@ void qmp_cxl_release_dynamic_capacity(const char *path,
uint16_t host_id,
{
error_setg(errp, "CXL Type 3 support is not compiled in");
}
+
+void qmp_cxl_process_mctp_message(const char *cci_name, Error **errp)
+{
+ error_setg(errp, "CXL Type 3 support is not compiled in");
+}
diff --git a/qapi/cxl.json b/qapi/cxl.json
index dd947d3bbc..fcb1e0b3fd 100644
--- a/qapi/cxl.json
+++ b/qapi/cxl.json
@@ -553,3 +553,21 @@
},
'features': [ 'unstable' ]
}
+
+##
+# @cxl-process-mctp-message:
+#
+# Command to process a MCTP command sent from another VM.
+#
+# @cci-name: name of the CCI to process the command;
+#
+# Features:
+#
+# @unstable: For now this command is subject to change.
+#
+# Since: 9.1
+##
+{'command': 'cxl-process-mctp-message',
+ 'data': {'cci-name': 'str'},
+ 'features': [ 'unstable' ]
+ }
--
2.47.2
