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[Qemu-devel] [PATCH v3 09/10] ipmi: use a file to load SDRs
From: |
Cédric Le Goater |
Subject: |
[Qemu-devel] [PATCH v3 09/10] ipmi: use a file to load SDRs |
Date: |
Thu, 10 Mar 2016 15:04:02 +0100 |
The IPMI BMC simulator populates the sdr/sensor tables with a minimal
set of entries (Watchdog). But some qemu platforms might want to use
extra entries for their custom needs.
This patch modifies slighty the initializing routine to take into
account a larger set read from a file. The name of the file to use is
defined through a new 'sdr' property of the simulator device.
Signed-off-by: Cédric Le Goater <address@hidden>
Acked-by: Corey Minyard <address@hidden>
Reviewed-by: Marcel Apfelbaum <address@hidden>
---
Changes since v1:
- log an error if file does not exist.
- change property name to 'sdrfile'
- add documentation of new properties
hw/ipmi/ipmi_bmc_sim.c | 23 +++++++++++++++++++++--
qemu-options.hx | 11 ++++++++++-
2 files changed, 31 insertions(+), 3 deletions(-)
Index: qemu-powernv.git/hw/ipmi/ipmi_bmc_sim.c
===================================================================
--- qemu-powernv.git.orig/hw/ipmi/ipmi_bmc_sim.c
+++ qemu-powernv.git/hw/ipmi/ipmi_bmc_sim.c
@@ -27,6 +27,7 @@
#include "qemu/timer.h"
#include "hw/ipmi/ipmi.h"
#include "qemu/error-report.h"
+#include "hw/loader.h"
#define IPMI_NETFN_CHASSIS 0x00
@@ -213,6 +214,7 @@ struct IPMIBmcSim {
IPMISel sel;
IPMISdr sdr;
IPMISensor sensors[MAX_SENSORS];
+ char *sdr_filename;
/* Odd netfns are for responses, so we only need the even ones. */
const IPMINetfn *netfns[MAX_NETFNS / 2];
@@ -1701,22 +1703,33 @@ static void ipmi_sdr_init(IPMIBmcSim *ib
sdrs_size = sizeof(init_sdrs);
sdrs = init_sdrs;
+ if (ibs->sdr_filename &&
+ !g_file_get_contents(ibs->sdr_filename, (gchar **) &sdrs, &sdrs_size,
+ NULL)) {
+ error_report("failed to load sdr file '%s'", ibs->sdr_filename);
+ sdrs_size = sizeof(init_sdrs);
+ sdrs = init_sdrs;
+ }
for (i = 0; i < sdrs_size; i += len) {
struct ipmi_sdr_header *sdrh;
if (i + IPMI_SDR_HEADER_SIZE > sdrs_size) {
error_report("Problem with recid 0x%4.4x", i);
- return;
+ break;
}
sdrh = (struct ipmi_sdr_header *) &sdrs[i];
len = ipmi_sdr_length(sdrh);
if (i + len > sdrs_size) {
error_report("Problem with recid 0x%4.4x", i);
- return;
+ break;
}
sdr_add_entry(ibs, sdrh, len, NULL);
}
+
+ if (sdrs != init_sdrs) {
+ g_free(sdrs);
+ }
}
static const VMStateDescription vmstate_ipmi_sim = {
@@ -1786,12 +1799,18 @@ static void ipmi_sim_realize(DeviceState
vmstate_register(NULL, 0, &vmstate_ipmi_sim, ibs);
}
+static Property ipmi_sim_properties[] = {
+ DEFINE_PROP_STRING("sdrfile", IPMIBmcSim, sdr_filename),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void ipmi_sim_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
IPMIBmcClass *bk = IPMI_BMC_CLASS(oc);
dc->realize = ipmi_sim_realize;
+ dc->props = ipmi_sim_properties;
bk->handle_command = ipmi_sim_handle_command;
}
Index: qemu-powernv.git/qemu-options.hx
===================================================================
--- qemu-powernv.git.orig/qemu-options.hx
+++ qemu-powernv.git/qemu-options.hx
@@ -387,7 +387,7 @@ possible drivers and properties, use @co
@code{-device @var{driver},help}.
Some drivers are:
address@hidden -device ipmi-bmc-sim,address@hidden,address@hidden
address@hidden -device ipmi-bmc-sim,address@hidden,address@hidden,address@hidden
Add an IPMI BMC. This is a simulation of a hardware management
interface processor that normally sits on a system. It provides
@@ -399,6 +399,15 @@ This address is the BMC's address on the
controllers. If you don't know what this means, it is safe to ignore
it.
address@hidden @option
address@hidden address@hidden
+The BMC to connect to, one of ipmi-bmc-sim or ipmi-bmc-extern above.
address@hidden address@hidden
+Define slave address to use for the BMC. The default is 0x20.
address@hidden address@hidden
+file containing raw Sensor Data Records (SDR) data. The default is none.
address@hidden table
+
@item -device ipmi-bmc-extern,address@hidden,address@hidden,address@hidden
Add a connection to an external IPMI BMC simulator. Instead of
- [Qemu-devel] [PATCH v3 00/10] ipmi: a couple of enhancements to the BMC simulator (round 2), Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 01/10] ipmi: remove IPMI_CHECK_CMD_LEN() macro, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 04/10] ipmi: add rsp_buffer_set_error() helper, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 03/10] ipmi: remove IPMI_CHECK_RESERVATION() macro, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 02/10] ipmi: replace IPMI_ADD_RSP_DATA() macro with inline helpers, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 07/10] ipmi: remove the need of an ending record in the SDR table, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 05/10] ipmi: add a realize function to the device class, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 08/10] ipmi: add some local variables in ipmi_sdr_init, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 09/10] ipmi: use a file to load SDRs,
Cédric Le Goater <=
- [Qemu-devel] [PATCH v3 10/10] ipmi: provide support for FRUs, Cédric Le Goater, 2016/03/10
- [Qemu-devel] [PATCH v3 06/10] ipmi: use a function to initialize the SDR table, Cédric Le Goater, 2016/03/10