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path: root/hw/ipmi/ipmi_bmc_sim.c
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Diffstat (limited to 'hw/ipmi/ipmi_bmc_sim.c')
-rw-r--r--hw/ipmi/ipmi_bmc_sim.c123
1 files changed, 98 insertions, 25 deletions
diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c
index 33c839c..04e1dcd 100644
--- a/hw/ipmi/ipmi_bmc_sim.c
+++ b/hw/ipmi/ipmi_bmc_sim.c
@@ -23,7 +23,7 @@
*/
#include "qemu/osdep.h"
-#include "sysemu/sysemu.h"
+#include "system/system.h"
#include "qemu/timer.h"
#include "hw/ipmi/ipmi.h"
#include "qemu/error-report.h"
@@ -70,6 +70,7 @@
#define IPMI_CMD_GET_MSG 0x33
#define IPMI_CMD_SEND_MSG 0x34
#define IPMI_CMD_READ_EVT_MSG_BUF 0x35
+#define IPMI_CMD_GET_CHANNEL_INFO 0x42
#define IPMI_NETFN_STORAGE 0x0a
@@ -234,6 +235,7 @@ struct IPMIBmcSim {
#define IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE_SET(s) \
(IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE & (s)->msg_flags)
+#define IPMI_BMC_GLOBAL_ENABLES_SUPPORTED 0x0f
#define IPMI_BMC_RCV_MSG_QUEUE_INT_BIT 0
#define IPMI_BMC_EVBUF_FULL_INT_BIT 1
#define IPMI_BMC_EVENT_MSG_BUF_BIT 2
@@ -463,14 +465,12 @@ void ipmi_bmc_gen_event(IPMIBmc *b, uint8_t *evt, bool log)
}
if (ibs->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL) {
- goto out;
+ return;
}
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)
@@ -513,7 +513,8 @@ static void gen_event(IPMIBmcSim *ibs, unsigned int sens_num, uint8_t deassert,
static void sensor_set_discrete_bit(IPMIBmcSim *ibs, unsigned int sensor,
unsigned int bit, unsigned int val,
- uint8_t evd1, uint8_t evd2, uint8_t evd3)
+ uint8_t evd1, uint8_t evd2, uint8_t evd3,
+ bool do_log)
{
IPMISensor *sens;
uint16_t mask;
@@ -533,7 +534,7 @@ static void sensor_set_discrete_bit(IPMIBmcSim *ibs, unsigned int sensor,
return; /* Already asserted */
}
sens->assert_states |= mask & sens->assert_suppt;
- if (sens->assert_enable & mask & sens->assert_states) {
+ if (do_log && (sens->assert_enable & mask & sens->assert_states)) {
/* Send an event on assert */
gen_event(ibs, sensor, 0, evd1, evd2, evd3);
}
@@ -543,7 +544,7 @@ static void sensor_set_discrete_bit(IPMIBmcSim *ibs, unsigned int sensor,
return; /* Already deasserted */
}
sens->deassert_states |= mask & sens->deassert_suppt;
- if (sens->deassert_enable & mask & sens->deassert_states) {
+ if (do_log && (sens->deassert_enable & mask & sens->deassert_states)) {
/* Send an event on deassert */
gen_event(ibs, sensor, 1, evd1, evd2, evd3);
}
@@ -699,6 +700,7 @@ static void ipmi_sim_handle_timeout(IPMIBmcSim *ibs)
{
IPMIInterface *s = ibs->parent.intf;
IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ bool do_log = !IPMI_BMC_WATCHDOG_GET_DONT_LOG(ibs);
if (!ibs->watchdog_running) {
goto out;
@@ -710,14 +712,16 @@ static void ipmi_sim_handle_timeout(IPMIBmcSim *ibs)
ibs->msg_flags |= IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK;
k->do_hw_op(s, IPMI_SEND_NMI, 0);
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 8, 1,
- 0xc8, (2 << 4) | 0xf, 0xff);
+ 0xc8, (2 << 4) | 0xf, 0xff,
+ do_log);
break;
case IPMI_BMC_WATCHDOG_PRE_MSG_INT:
ibs->msg_flags |= IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK;
k->set_atn(s, 1, attn_irq_enabled(ibs));
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 8, 1,
- 0xc8, (3 << 4) | 0xf, 0xff);
+ 0xc8, (3 << 4) | 0xf, 0xff,
+ do_log);
break;
default:
@@ -737,24 +741,28 @@ static void ipmi_sim_handle_timeout(IPMIBmcSim *ibs)
switch (IPMI_BMC_WATCHDOG_GET_ACTION(ibs)) {
case IPMI_BMC_WATCHDOG_ACTION_NONE:
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 0, 1,
- 0xc0, ibs->watchdog_use & 0xf, 0xff);
+ 0xc0, ibs->watchdog_use & 0xf, 0xff,
+ do_log);
break;
case IPMI_BMC_WATCHDOG_ACTION_RESET:
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 1, 1,
- 0xc1, ibs->watchdog_use & 0xf, 0xff);
+ 0xc1, ibs->watchdog_use & 0xf, 0xff,
+ do_log);
k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
break;
case IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN:
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 2, 1,
- 0xc2, ibs->watchdog_use & 0xf, 0xff);
+ 0xc2, ibs->watchdog_use & 0xf, 0xff,
+ do_log);
k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
break;
case IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE:
sensor_set_discrete_bit(ibs, IPMI_WATCHDOG_SENSOR, 2, 1,
- 0xc3, ibs->watchdog_use & 0xf, 0xff);
+ 0xc3, ibs->watchdog_use & 0xf, 0xff,
+ do_log);
k->do_hw_op(s, IPMI_POWERCYCLE_CHASSIS, 0);
break;
}
@@ -925,7 +933,14 @@ static void set_bmc_global_enables(IPMIBmcSim *ibs,
uint8_t *cmd, unsigned int cmd_len,
RspBuffer *rsp)
{
- set_global_enables(ibs, cmd[2]);
+ uint8_t val = cmd[2];
+
+ if (val & ~IPMI_BMC_GLOBAL_ENABLES_SUPPORTED) {
+ rsp_buffer_set_error(rsp, IPMI_CC_INVALID_DATA_FIELD);
+ return;
+ }
+
+ set_global_enables(ibs, val);
}
static void get_bmc_global_enables(IPMIBmcSim *ibs,
@@ -980,7 +995,7 @@ static void get_msg(IPMIBmcSim *ibs,
if (QTAILQ_EMPTY(&ibs->rcvbufs)) {
rsp_buffer_set_error(rsp, 0x80); /* Queue empty */
- goto out;
+ return;
}
rsp_buffer_push(rsp, 0); /* Channel 0 */
msg = QTAILQ_FIRST(&ibs->rcvbufs);
@@ -995,9 +1010,6 @@ static void get_msg(IPMIBmcSim *ibs,
ibs->msg_flags &= ~IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE;
k->set_atn(s, attn_set(ibs), attn_irq_enabled(ibs));
}
-
-out:
- return;
}
static unsigned char
@@ -1020,8 +1032,8 @@ static void send_msg(IPMIBmcSim *ibs,
uint8_t *buf;
uint8_t netfn, rqLun, rsLun, rqSeq;
- if (cmd[2] != 0) {
- /* We only handle channel 0 with no options */
+ if (cmd[2] != IPMI_CHANNEL_IPMB) {
+ /* We only handle channel 0h (IPMB) with no options */
rsp_buffer_set_error(rsp, IPMI_CC_INVALID_DATA_FIELD);
return;
}
@@ -1219,6 +1231,68 @@ static void get_watchdog_timer(IPMIBmcSim *ibs,
}
}
+static void get_channel_info(IPMIBmcSim *ibs,
+ uint8_t *cmd, unsigned int cmd_len,
+ RspBuffer *rsp)
+{
+ IPMIInterface *s = ibs->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ IPMIFwInfo info = {};
+ uint8_t ch = cmd[2] & 0x0f;
+
+ /* Only define channel 0h (IPMB) and Fh (system interface) */
+
+ if (ch == 0x0e) { /* "This channel" */
+ ch = IPMI_CHANNEL_SYSTEM;
+ }
+ rsp_buffer_push(rsp, ch);
+
+ if (ch != IPMI_CHANNEL_IPMB && ch != IPMI_CHANNEL_SYSTEM) {
+ /* Not a supported channel */
+ rsp_buffer_set_error(rsp, IPMI_CC_INVALID_DATA_FIELD);
+ return;
+ }
+
+ if (k->get_fwinfo) {
+ k->get_fwinfo(s, &info);
+ }
+
+ if (ch == IPMI_CHANNEL_IPMB) {
+ rsp_buffer_push(rsp, IPMI_CHANNEL_MEDIUM_IPMB);
+ rsp_buffer_push(rsp, IPMI_CHANNEL_PROTOCOL_IPMB);
+ } else { /* IPMI_CHANNEL_SYSTEM */
+ rsp_buffer_push(rsp, IPMI_CHANNEL_MEDIUM_SYSTEM);
+ rsp_buffer_push(rsp, info.ipmi_channel_protocol);
+ }
+
+ rsp_buffer_push(rsp, 0x00); /* Session-less */
+
+ /* IPMI Enterprise Number for Vendor ID */
+ rsp_buffer_push(rsp, 0xf2);
+ rsp_buffer_push(rsp, 0x1b);
+ rsp_buffer_push(rsp, 0x00);
+
+ if (ch == IPMI_CHANNEL_SYSTEM) {
+ uint8_t irq;
+
+ if (info.irq_source == IPMI_ISA_IRQ) {
+ irq = info.interrupt_number;
+ } else if (info.irq_source == IPMI_PCI_IRQ) {
+ irq = 0x10 + info.interrupt_number;
+ } else {
+ irq = 0xff; /* no interrupt / unspecified */
+ }
+
+ /* Both interrupts use the same irq number */
+ rsp_buffer_push(rsp, irq);
+ rsp_buffer_push(rsp, irq);
+ } else {
+ /* Reserved */
+ rsp_buffer_push(rsp, 0x00);
+ rsp_buffer_push(rsp, 0x00);
+ }
+}
+
static void get_sdr_rep_info(IPMIBmcSim *ibs,
uint8_t *cmd, unsigned int cmd_len,
RspBuffer *rsp)
@@ -2015,6 +2089,7 @@ static const IPMICmdHandler app_cmds[] = {
[IPMI_CMD_RESET_WATCHDOG_TIMER] = { reset_watchdog_timer },
[IPMI_CMD_SET_WATCHDOG_TIMER] = { set_watchdog_timer, 8 },
[IPMI_CMD_GET_WATCHDOG_TIMER] = { get_watchdog_timer },
+ [IPMI_CMD_GET_CHANNEL_INFO] = { get_channel_info, 3 },
};
static const IPMINetfn app_netfn = {
.cmd_nums = ARRAY_SIZE(app_cmds),
@@ -2187,11 +2262,9 @@ static void ipmi_sim_realize(DeviceState *dev, Error **errp)
register_cmds(ibs);
ibs->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, ipmi_timeout, ibs);
-
- vmstate_register(NULL, 0, &vmstate_ipmi_sim, ibs);
}
-static Property ipmi_sim_properties[] = {
+static const Property ipmi_sim_properties[] = {
DEFINE_PROP_UINT16("fruareasize", IPMIBmcSim, fru.areasize, 1024),
DEFINE_PROP_STRING("frudatafile", IPMIBmcSim, fru.filename),
DEFINE_PROP_STRING("sdrfile", IPMIBmcSim, sdr_filename),
@@ -2203,16 +2276,16 @@ static Property ipmi_sim_properties[] = {
DEFINE_PROP_UINT32("mfg_id", IPMIBmcSim, mfg_id, 0),
DEFINE_PROP_UINT16("product_id", IPMIBmcSim, product_id, 0),
DEFINE_PROP_UUID_NODEFAULT("guid", IPMIBmcSim, uuid),
- DEFINE_PROP_END_OF_LIST(),
};
-static void ipmi_sim_class_init(ObjectClass *oc, void *data)
+static void ipmi_sim_class_init(ObjectClass *oc, const void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
IPMIBmcClass *bk = IPMI_BMC_CLASS(oc);
dc->hotpluggable = false;
dc->realize = ipmi_sim_realize;
+ dc->vmsd = &vmstate_ipmi_sim;
device_class_set_props(dc, ipmi_sim_properties);
bk->handle_command = ipmi_sim_handle_command;
}
generated by cgit v1.1 at 2025-07-02 23:20:57 +0000