[Qemu-devel] [PATCH 8/8] ipmi: introduce an ipmi_bmc_gen_event() API

[Cédric Le Goater]

It will be used to fill the message buffer with custom events expected
by some systems. Typically, an Open PowerNV platform guest is notified
with an OEM SEL message before a shutdown or a reboot.

Signed-off-by: Cédric Le Goater <address@hidden>
---
 hw/ipmi/ipmi_bmc_sim.c | 24 ++++++++++++++++++++++++
 include/hw/ipmi/ipmi.h |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c
index c952219429f4..cd2db03a4188 100644
--- a/hw/ipmi/ipmi_bmc_sim.c
+++ b/hw/ipmi/ipmi_bmc_sim.c
@@ -463,6 +463,30 @@ static int attn_irq_enabled(IPMIBmcSim *ibs)
             IPMI_BMC_MSG_FLAG_EVT_BUF_FULL_SET(ibs));
 }
 
+void ipmi_bmc_gen_event(IPMIBmc *b, uint8_t *evt, bool log)
+{
+    IPMIBmcSim *ibs = IPMI_BMC_SIMULATOR(b);
+    IPMIInterface *s = ibs->parent.intf;
+    IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+    if (!IPMI_BMC_EVENT_MSG_BUF_ENABLED(ibs)) {
+        return;
+    }
+
+    if (log && IPMI_BMC_EVENT_LOG_ENABLED(ibs)) {
+        sel_add_event(ibs, evt);
+    }
+
+    if (ibs->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL) {
+        goto out;
+    }
+
+    memcpy(ibs->evtbuf, evt, 16);
+    ibs->msg_flags |= IPMI_BMC_MSG_FLAG_EVT_BUF_FULL;
+    k->set_atn(s, 1, attn_irq_enabled(ibs));
+ out:
+    return;
+}
 static void gen_event(IPMIBmcSim *ibs, unsigned int sens_num, uint8_t deassert,
                       uint8_t evd1, uint8_t evd2, uint8_t evd3)
 {
diff --git a/include/hw/ipmi/ipmi.h b/include/hw/ipmi/ipmi.h
index e41321db174d..178e72d72b40 100644
--- a/include/hw/ipmi/ipmi.h
+++ b/include/hw/ipmi/ipmi.h
@@ -257,4 +257,6 @@ typedef uint8_t ipmi_sdr_compact_buffer[sizeof(struct 
ipmi_sdr_compact)];
 
 int ipmi_bmc_sdr_find(IPMIBmc *b, uint16_t recid,
                       const struct ipmi_sdr_compact **sdr, uint16_t *nextrec);
+void ipmi_bmc_gen_event(IPMIBmc *b, uint8_t *evt, bool log);
+
 #endif
-- 
2.1.4