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