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/*
* IPMI SMBIOS firmware handling
*
* Copyright (c) 2015,2016 Corey Minyard, MontaVista Software, LLC
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/ipmi/ipmi.h"
#include "hw/smbios/ipmi.h"
#include "hw/smbios/smbios.h"
#include "qemu/error-report.h"
#include "smbios_build.h"
/* SMBIOS type 38 - IPMI */
struct smbios_type_38 {
struct smbios_structure_header header;
uint8_t interface_type;
uint8_t ipmi_spec_revision;
uint8_t i2c_slave_address;
uint8_t nv_storage_device_address;
uint64_t base_address;
uint8_t base_address_modifier;
uint8_t interrupt_number;
} QEMU_PACKED;
static void smbios_build_one_type_38(IPMIFwInfo *info)
{
uint64_t baseaddr = info->base_address;
SMBIOS_BUILD_TABLE_PRE(38, 0x3000, true);
t->interface_type = info->interface_type;
t->ipmi_spec_revision = ((info->ipmi_spec_major_revision << 4)
| info->ipmi_spec_minor_revision);
t->i2c_slave_address = info->i2c_slave_address;
t->nv_storage_device_address = 0;
assert(info->ipmi_spec_minor_revision <= 15);
assert(info->ipmi_spec_major_revision <= 15);
/* or 1 to set it to I/O space */
switch (info->memspace) {
case IPMI_MEMSPACE_IO:
baseaddr |= 1;
break;
case IPMI_MEMSPACE_MEM32:
case IPMI_MEMSPACE_MEM64:
break;
case IPMI_MEMSPACE_SMBUS:
baseaddr <<= 1;
break;
}
t->base_address = cpu_to_le64(baseaddr);
t->base_address_modifier = 0;
if (info->irq_type == IPMI_LEVEL_IRQ) {
t->base_address_modifier |= 1;
}
switch (info->register_spacing) {
case 1:
break;
case 4:
t->base_address_modifier |= 1 << 6;
break;
case 16:
t->base_address_modifier |= 2 << 6;
break;
default:
error_report("IPMI register spacing %d is not compatible with"
" SMBIOS, ignoring this entry.", info->register_spacing);
return;
}
t->interrupt_number = info->interrupt_number;
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_add_ipmi_devices(BusState *bus)
{
BusChild *kid;
QTAILQ_FOREACH(kid, &bus->children, sibling) {
DeviceState *dev = kid->child;
Object *obj = object_dynamic_cast(OBJECT(dev), TYPE_IPMI_INTERFACE);
BusState *childbus;
if (obj) {
IPMIInterface *ii;
IPMIInterfaceClass *iic;
IPMIFwInfo info;
ii = IPMI_INTERFACE(obj);
iic = IPMI_INTERFACE_GET_CLASS(obj);
memset(&info, 0, sizeof(info));
iic->get_fwinfo(ii, &info);
smbios_build_one_type_38(&info);
continue;
}
QLIST_FOREACH(childbus, &dev->child_bus, sibling) {
smbios_add_ipmi_devices(childbus);
}
}
}
void smbios_build_type_38_table(void)
{
BusState *bus;
bus = sysbus_get_default();
if (bus) {
smbios_add_ipmi_devices(bus);
}
}
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