104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <vm.h>
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#include <per_cpu.h>
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#include <vacpi.h>
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#include <pgtable.h>
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/* ACPI tables for pre-launched VM and SOS */
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static struct acpi_table_info acpi_table_template[CONFIG_MAX_VM_NUM] = {
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[0U ... (CONFIG_MAX_VM_NUM - 1U)] = {
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.rsdp = {
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.signature = ACPI_SIG_RSDP,
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.oem_id = ACPI_OEM_ID,
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.revision = 0x2U,
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.length = ACPI_RSDP_XCHECKSUM_LENGTH,
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.xsdt_physical_address = ACPI_XSDT_ADDR,
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},
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.xsdt = {
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/* Currently XSDT table only pointers to 1 ACPI table entry (MADT) */
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.header.length = sizeof(struct acpi_table_header) + sizeof(uint64_t),
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.header.revision = 0x1U,
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.header.oem_revision = 0x1U,
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.header.asl_compiler_revision = ACPI_ASL_COMPILER_VERSION,
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.header.signature = ACPI_SIG_XSDT,
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.header.oem_id = ACPI_OEM_ID,
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.header.oem_table_id = "ACRNXSDT",
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.header.asl_compiler_id = ACPI_ASL_COMPILER_ID,
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.table_offset_entry[0] = ACPI_MADT_ADDR,
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},
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.madt = {
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.header.revision = 0x3U,
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.header.oem_revision = 0x1U,
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.header.asl_compiler_revision = ACPI_ASL_COMPILER_VERSION,
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.header.signature = ACPI_SIG_MADT,
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.header.oem_id = ACPI_OEM_ID,
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.header.oem_table_id = "ACRNMADT",
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.header.asl_compiler_id = ACPI_ASL_COMPILER_ID,
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.address = 0xFEE00000U, /* Local APIC Address */
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.flags = 0x1U, /* PC-AT Compatibility=1 */
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},
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.lapic_nmi = {
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.header.type = ACPI_MADT_TYPE_LOCAL_APIC_NMI,
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.header.length = sizeof(struct acpi_madt_local_apic_nmi),
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.processor_id = 0xFFU,
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.flags = 0x5U,
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.lint = 0x1U,
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},
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.lapic_array = {
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[0U ... (MAX_PCPU_NUM - 1U)] = {
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.header.type = ACPI_MADT_TYPE_LOCAL_APIC,
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.header.length = sizeof(struct acpi_madt_local_apic),
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.lapic_flags = 0x1U, /* Processor Enabled=1, Runtime Online Capable=0 */
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}
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},
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}
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};
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/**
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* @pre vm != NULL
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* @pre vm->vm_id < CONFIG_MAX_VM_NUM
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*/
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void build_vacpi(struct acrn_vm *vm)
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{
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struct acpi_table_rsdp *rsdp;
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struct acpi_table_xsdt *xsdt;
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struct acpi_table_madt *madt;
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struct acpi_madt_local_apic *lapic;
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uint16_t i;
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rsdp = &acpi_table_template[vm->vm_id].rsdp;
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rsdp->checksum = calculate_checksum8(rsdp, ACPI_RSDP_CHECKSUM_LENGTH);
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rsdp->extended_checksum = calculate_checksum8(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH);
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/* Copy RSDP table to guest physical memory */
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(void)copy_to_gpa(vm, rsdp, ACPI_RSDP_ADDR, ACPI_RSDP_XCHECKSUM_LENGTH);
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xsdt = &acpi_table_template[vm->vm_id].xsdt;
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xsdt->header.checksum = calculate_checksum8(xsdt, xsdt->header.length);
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/* Copy XSDT table to guest physical memory */
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(void)copy_to_gpa(vm, xsdt, ACPI_XSDT_ADDR, xsdt->header.length);
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/* Fix up MADT LAPIC subtables */
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for (i = 0U; i < vm->hw.created_vcpus; i++) {
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lapic = &acpi_table_template[vm->vm_id].lapic_array[i];
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lapic->processor_id = (uint8_t)i;
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lapic->id = (uint8_t)i;
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}
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madt = &acpi_table_template[vm->vm_id].madt;
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madt->header.length = sizeof(struct acpi_table_madt)
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+ sizeof(struct acpi_madt_local_apic_nmi)
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+ (sizeof(struct acpi_madt_local_apic) * (size_t)vm->hw.created_vcpus);
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madt->header.checksum = calculate_checksum8(madt, madt->header.length);
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/* Copy MADT table and its subtables to guest physical memory */
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(void)copy_to_gpa(vm, madt, ACPI_MADT_ADDR, madt->header.length);
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}
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