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-rw-r--r--hw/fsp/fsp-nvram.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/hw/fsp/fsp-nvram.c b/hw/fsp/fsp-nvram.c
index 85b7e81..1b4990f 100644
--- a/hw/fsp/fsp-nvram.c
+++ b/hw/fsp/fsp-nvram.c
@@ -310,6 +310,44 @@ static struct fsp_client fsp_nvram_client_rr = {
.message = fsp_nvram_msg_rr,
};
+static bool fsp_vnvram_msg(u32 cmd_sub_mod, struct fsp_msg *msg)
+{
+ u32 cmd;
+ struct fsp_msg *resp;
+
+ assert(msg == NULL);
+ switch (cmd_sub_mod) {
+ case FSP_CMD_GET_VNV_STATS:
+ prlog(PR_DEBUG,
+ "FSP NVRAM: Get vNVRAM statistics not supported\n");
+ cmd = FSP_RSP_GET_VNV_STATS | FSP_STATUS_INVALID_SUBCMD;
+ break;
+ case FSP_CMD_FREE_VNV_STATS:
+ prlog(PR_DEBUG,
+ "FSP NVRAM: Free vNVRAM statistics buffer not supported\n");
+ cmd = FSP_RSP_FREE_VNV_STATS | FSP_STATUS_INVALID_SUBCMD;
+ break;
+ default:
+ return false;
+ }
+
+ resp = fsp_mkmsg(cmd, 0);
+ if (!resp) {
+ prerror("FSP NVRAM: Failed to allocate resp message\n");
+ return false;
+ }
+ if (fsp_queue_msg(resp, fsp_freemsg)) {
+ prerror("FSP NVRAM: Failed to queue resp message\n");
+ fsp_freemsg(resp);
+ return false;
+ }
+ return true;
+}
+
+static struct fsp_client fsp_vnvram_client = {
+ .message = fsp_vnvram_msg,
+};
+
int fsp_nvram_info(uint32_t *total_size)
{
if (!fsp_present()) {
@@ -354,6 +392,9 @@ int fsp_nvram_start_read(void *dst, uint32_t src, uint32_t len)
/* Register for the reset/reload event */
fsp_register_client(&fsp_nvram_client_rr, FSP_MCLASS_RR_EVENT);
+ /* Register for virtual NVRAM interface events */
+ fsp_register_client(&fsp_vnvram_client, FSP_MCLASS_VIRTUAL_NVRAM);
+
/* Open and load the nvram from the FSP */
fsp_nvram_send_open();