173 lines
5.1 KiB
C
173 lines
5.1 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2009-2011 Erwan Velu - All Rights Reserved
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall
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* be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* -----------------------------------------------------------------------
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*/
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#include <stdio.h>
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#include <string.h>
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#include <memory.h>
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#include <dprintf.h>
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#include <stdlib.h>
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#include "acpi/acpi.h"
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/* Parse the apic structures */
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static uint8_t *add_apic_structure(s_acpi * acpi, uint8_t * q)
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{
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uint8_t type = *q;
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q++;
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uint8_t length = *q;
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q++;
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s_processor_local_apic *sla;
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s_io_apic *sio;
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s_interrupt_source_override *siso;
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s_nmi *snmi;
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s_local_apic_nmi *slan;
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s_local_apic_address_override *slaao;
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s_io_sapic *siosapic;
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s_local_sapic *sls;
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s_madt *madt = &acpi->madt;
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switch (type) {
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case PROCESSOR_LOCAL_APIC:
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sla = &madt->processor_local_apic[madt->processor_local_apic_count];
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sla->type = type;
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sla->length = length;
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cp_struct(&sla->acpi_id);
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cp_struct(&sla->apic_id);
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cp_struct(&sla->flags);
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madt->processor_local_apic_count++;
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break;
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case IO_APIC:
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sio = &madt->io_apic[madt->io_apic_count];
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sio->type = type;
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sio->length = length;
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cp_struct(&sio->io_apic_id);
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cp_struct(&sio->reserved);
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cp_struct(&sio->io_apic_address);
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cp_struct(&sio->global_system_interrupt_base);
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madt->io_apic_count++;
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break;
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case INTERRUPT_SOURCE_OVERRIDE:
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siso =
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&madt->interrupt_source_override[madt->
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interrupt_source_override_count];
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siso->type = type;
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siso->length = length;
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siso->bus = *q;
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q++;
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siso->source = *q;
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q++;
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cp_struct(&siso->global_system_interrupt);
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cp_struct(&siso->flags);
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madt->interrupt_source_override_count++;
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break;
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case NMI:
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snmi = &madt->nmi[madt->nmi_count];
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snmi->type = type;
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snmi->length = length;
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cp_struct(&snmi->flags);
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cp_struct(&snmi->global_system_interrupt);
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madt->nmi_count++;
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break;
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case LOCAL_APIC_NMI_STRUCTURE:
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slan = &madt->local_apic_nmi[madt->local_apic_nmi_count];
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slan->type = type;
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slan->length = length;
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cp_struct(&slan->acpi_processor_id);
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cp_struct(&slan->flags);
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cp_struct(&slan->local_apic_lint);
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madt->local_apic_nmi_count++;
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break;
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case LOCAL_APIC_ADDRESS_OVERRIDE_STRUCTURE:
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slaao =
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&madt->local_apic_address_override[madt->
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local_apic_address_override_count];
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slaao->type = type;
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slaao->length = length;
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cp_struct(&slaao->reserved);
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cp_struct(&slaao->local_apic_address);
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madt->local_apic_address_override_count++;
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break;
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case IO_SAPIC:
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siosapic = &madt->io_sapic[madt->io_sapic_count];
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siosapic->type = type;
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siosapic->length = length;
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cp_struct(&siosapic->io_apic_id);
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cp_struct(&siosapic->reserved);
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cp_struct(&siosapic->global_system_interrupt_base);
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cp_struct(&siosapic->io_sapic_address);
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madt->io_sapic_count++;
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break;
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case LOCAL_SAPIC:
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sls = &madt->local_sapic[madt->local_sapic_count];
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sls->type = type;
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sls->length = length;
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cp_struct(&sls->acpi_processor_id);
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cp_struct(&sls->local_sapic_id);
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cp_struct(&sls->local_sapic_eid);
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cp_struct(sls->reserved);
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cp_struct(&sls->flags);
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cp_struct(&sls->acpi_processor_uid_value);
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if ((sls->acpi_processor_uid_string =
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malloc(length - ACPI_PROCESSOR_UID_STRING_OFFSET)) != NULL) {
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memcpy(sls->acpi_processor_uid_string, q,
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length - ACPI_PROCESSOR_UID_STRING_OFFSET);
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q += length - ACPI_PROCESSOR_UID_STRING_OFFSET;
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}
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madt->local_sapic_count++;
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break;
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default:
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printf("Unkown APIC structure type %u, size=%u \n", type, length);
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q += length - 2;
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break;
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}
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return q;
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}
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void parse_madt(s_acpi * acpi)
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{
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/* Let's seach for FADT table */
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uint8_t *q, *max_address;
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s_madt *m = &acpi->madt;
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/* Fixing table name */
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memcpy(m->header.signature, APIC, sizeof(APIC));
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/* Copying remaining structs */
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q = (uint8_t *)m->address;
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q += ACPI_HEADER_SIZE;
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max_address = (uint8_t *)m->address;
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max_address += m->header.length;
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cp_struct(&m->local_apic_address);
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cp_struct(&m->flags);
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while (q < max_address) {
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q = add_apic_structure(acpi, q);
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}
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}
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