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xen/tools/libacpi/build.c
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Tu Dinh 242a5f75ee acpi: Set TPM2 LAML to actual log area size 
The LAML field should follow the TCG PC Client Platform Firmware Profile
Specification Version. Version 1.06 Revision 52 says:

'The TCG ACPI specification uses the field name "Log Area Minimum
 Length", but the field value is the actual log area length reserved by
 Platform Firmware, not a lower bound.'

Remove the now-unused TPM_LOG_AREA_MINIMUM_SIZE.

No functional change.

Signed-off-by: Tu Dinh <ngoc-tu.dinh@vates.tech>
Acked-by: Jan Beulich <jbeulich@suse.com>
2025-11-12 09:36:06 +01:00

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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2004, Intel Corporation.
* Copyright (c) 2006, Keir Fraser, XenSource Inc.
*/
#include LIBACPI_STDUTILS
#include "acpi2_0.h"
#include "libacpi.h"
#include "ssdt_s3.h"
#include "ssdt_s4.h"
#include "ssdt_tpm.h"
#include "ssdt_tpm2.h"
#include "ssdt_pm.h"
#include "ssdt_laptop_slate.h"
#include <xen/hvm/hvm_info_table.h>
#include <xen/hvm/hvm_xs_strings.h>
#include <xen/hvm/params.h>
#include <xen/memory.h>
#define ACPI_MAX_SECONDARY_TABLES 16
#define align16(sz) (((sz) + 15) & ~15)
#define fixed_strcpy(d, s) strncpy((d), (s), sizeof(d))
extern struct acpi_20_rsdp Rsdp;
extern struct acpi_20_rsdt Rsdt;
extern struct acpi_20_xsdt Xsdt;
extern struct acpi_fadt Fadt;
extern struct acpi_20_facs Facs;
extern struct acpi_20_waet Waet;
/*
* Located at ACPI_INFO_PHYSICAL_ADDRESS.
*
* This must match the Field("BIOS"....) definition in the DSDT.
*/
struct acpi_info {
uint8_t com1_present:1; /* 0[0] - System has COM1? */
uint8_t com2_present:1; /* 0[1] - System has COM2? */
uint8_t lpt1_present:1; /* 0[2] - System has LPT1? */
uint8_t hpet_present:1; /* 0[3] - System has HPET? */
uint16_t nr_cpus; /* 2 - Number of CPUs */
uint32_t pci_min, pci_len; /* 4, 8 - PCI I/O hole boundaries */
uint32_t madt_csum_addr; /* 12 - Address of MADT checksum */
uint32_t madt_lapic0_addr; /* 16 - Address of first MADT LAPIC struct */
uint32_t vm_gid_addr; /* 20 - Address of VM generation id buffer */
uint64_t pci_hi_min, pci_hi_len; /* 24, 32 - PCI I/O hole boundaries */
};
static void set_checksum(
void *table, uint32_t checksum_offset, uint32_t length)
{
uint8_t *p, sum = 0;
p = table;
p[checksum_offset] = 0;
while ( length-- )
sum = sum + *p++;
p = table;
p[checksum_offset] = -sum;
}
static struct acpi_20_madt *construct_madt(struct acpi_ctxt *ctxt,
const struct acpi_config *config,
struct acpi_info *info)
{
struct acpi_20_madt *madt;
struct acpi_20_madt_intsrcovr *intsrcovr;
struct acpi_20_madt_ioapic *io_apic;
struct acpi_20_madt_lapic *lapic;
const struct hvm_info_table *hvminfo = config->hvminfo;
int i, sz;
if ( config->lapic_id == NULL )
return NULL;
sz = sizeof(struct acpi_20_madt);
sz += sizeof(struct acpi_20_madt_intsrcovr) * 16;
sz += sizeof(struct acpi_20_madt_ioapic);
sz += sizeof(struct acpi_20_madt_lapic) * hvminfo->nr_vcpus;
madt = ctxt->mem_ops.alloc(ctxt, sz, 16);
if (!madt) return NULL;
memset(madt, 0, sizeof(*madt));
madt->header.signature = ACPI_2_0_MADT_SIGNATURE;
madt->header.revision = ACPI_2_0_MADT_REVISION;
fixed_strcpy(madt->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(madt->header.oem_table_id, ACPI_OEM_TABLE_ID);
madt->header.oem_revision = ACPI_OEM_REVISION;
madt->header.creator_id = ACPI_CREATOR_ID;
madt->header.creator_revision = ACPI_CREATOR_REVISION;
madt->lapic_addr = config->lapic_base_address;
madt->flags = ACPI_PCAT_COMPAT;
if ( config->table_flags & ACPI_HAS_IOAPIC )
{
intsrcovr = (struct acpi_20_madt_intsrcovr *)(madt + 1);
for ( i = 0; i < 16; i++ )
{
memset(intsrcovr, 0, sizeof(*intsrcovr));
intsrcovr->type = ACPI_INTERRUPT_SOURCE_OVERRIDE;
intsrcovr->length = sizeof(*intsrcovr);
intsrcovr->source = i;
if ( i == 0 )
{
/* ISA IRQ0 routed to IOAPIC GSI 2. */
intsrcovr->gsi = 2;
intsrcovr->flags = 0x0;
}
else if ( config->pci_isa_irq_mask & (1U << i) )
{
/* PCI: active-low level-triggered. */
intsrcovr->gsi = i;
intsrcovr->flags = 0xf;
}
else
{
/* No need for a INT source override structure. */
continue;
}
intsrcovr++;
}
io_apic = (struct acpi_20_madt_ioapic *)intsrcovr;
memset(io_apic, 0, sizeof(*io_apic));
io_apic->type = ACPI_IO_APIC;
io_apic->length = sizeof(*io_apic);
io_apic->ioapic_id = config->ioapic_id;
io_apic->ioapic_addr = config->ioapic_base_address;
lapic = (struct acpi_20_madt_lapic *)(io_apic + 1);
}
else
lapic = (struct acpi_20_madt_lapic *)(madt + 1);
info->nr_cpus = hvminfo->nr_vcpus;
info->madt_lapic0_addr = ctxt->mem_ops.v2p(ctxt, lapic);
for ( i = 0; i < hvminfo->nr_vcpus; i++ )
{
memset(lapic, 0, sizeof(*lapic));
lapic->type = ACPI_PROCESSOR_LOCAL_APIC;
lapic->length = sizeof(*lapic);
/* Processor ID must match processor-object IDs in the DSDT. */
lapic->acpi_processor_id = i;
lapic->apic_id = config->lapic_id(i);
lapic->flags = (test_bit(i, hvminfo->vcpu_online)
? ACPI_LOCAL_APIC_ENABLED : 0);
lapic++;
}
madt->header.length = (unsigned char *)lapic - (unsigned char *)madt;
set_checksum(madt, offsetof(struct acpi_header, checksum),
madt->header.length);
info->madt_csum_addr =
ctxt->mem_ops.v2p(ctxt, &madt->header.checksum);
return madt;
}
static struct acpi_20_hpet *construct_hpet(struct acpi_ctxt *ctxt,
const struct acpi_config *config)
{
struct acpi_20_hpet *hpet;
hpet = ctxt->mem_ops.alloc(ctxt, sizeof(*hpet), 16);
if (!hpet) return NULL;
memset(hpet, 0, sizeof(*hpet));
hpet->header.signature = ACPI_2_0_HPET_SIGNATURE;
hpet->header.revision = ACPI_2_0_HPET_REVISION;
fixed_strcpy(hpet->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(hpet->header.oem_table_id, ACPI_OEM_TABLE_ID);
hpet->header.oem_revision = ACPI_OEM_REVISION;
hpet->header.creator_id = ACPI_CREATOR_ID;
hpet->header.creator_revision = ACPI_CREATOR_REVISION;
hpet->timer_block_id = 0x8086a201;
hpet->addr.address = ACPI_HPET_ADDRESS;
hpet->header.length = sizeof(*hpet);
set_checksum(hpet, offsetof(struct acpi_header, checksum), sizeof(*hpet));
return hpet;
}
static struct acpi_20_waet *construct_waet(struct acpi_ctxt *ctxt,
const struct acpi_config *config)
{
struct acpi_20_waet *waet;
waet = ctxt->mem_ops.alloc(ctxt, sizeof(*waet), 16);
if (!waet) return NULL;
memcpy(waet, &Waet, sizeof(*waet));
waet->header.length = sizeof(*waet);
set_checksum(waet, offsetof(struct acpi_header, checksum), sizeof(*waet));
return waet;
}
static struct acpi_20_srat *construct_srat(struct acpi_ctxt *ctxt,
const struct acpi_config *config)
{
struct acpi_20_srat *srat;
struct acpi_20_srat_processor *processor;
struct acpi_20_srat_memory *memory;
unsigned int size;
void *p;
unsigned int i;
size = sizeof(*srat) + sizeof(*processor) * config->hvminfo->nr_vcpus +
sizeof(*memory) * config->numa.nr_vmemranges;
p = ctxt->mem_ops.alloc(ctxt, size, 16);
if ( !p )
return NULL;
srat = memset(p, 0, size);
srat->header.signature = ACPI_2_0_SRAT_SIGNATURE;
srat->header.revision = ACPI_2_0_SRAT_REVISION;
fixed_strcpy(srat->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(srat->header.oem_table_id, ACPI_OEM_TABLE_ID);
srat->header.oem_revision = ACPI_OEM_REVISION;
srat->header.creator_id = ACPI_CREATOR_ID;
srat->header.creator_revision = ACPI_CREATOR_REVISION;
srat->table_revision = ACPI_SRAT_TABLE_REVISION;
processor = (struct acpi_20_srat_processor *)(srat + 1);
for ( i = 0; i < config->hvminfo->nr_vcpus; i++ )
{
processor->type = ACPI_PROCESSOR_AFFINITY;
processor->length = sizeof(*processor);
processor->domain = config->numa.vcpu_to_vnode[i];
processor->apic_id = config->lapic_id(i);
processor->flags = ACPI_LOCAL_APIC_AFFIN_ENABLED;
processor++;
}
memory = (struct acpi_20_srat_memory *)processor;
for ( i = 0; i < config->numa.nr_vmemranges; i++ )
{
memory->type = ACPI_MEMORY_AFFINITY;
memory->length = sizeof(*memory);
memory->domain = config->numa.vmemrange[i].nid;
memory->flags = ACPI_MEM_AFFIN_ENABLED;
memory->base_address = config->numa.vmemrange[i].start;
memory->mem_length = config->numa.vmemrange[i].end -
config->numa.vmemrange[i].start;
memory++;
}
ASSERT(((unsigned long)memory) - ((unsigned long)p) == size);
srat->header.length = size;
set_checksum(srat, offsetof(struct acpi_header, checksum), size);
return srat;
}
static struct acpi_20_slit *construct_slit(struct acpi_ctxt *ctxt,
const struct acpi_config *config)
{
struct acpi_20_slit *slit;
unsigned int i, num, size;
num = config->numa.nr_vnodes * config->numa.nr_vnodes;
size = sizeof(*slit) + num * sizeof(uint8_t);
slit = ctxt->mem_ops.alloc(ctxt, size, 16);
if ( !slit )
return NULL;
memset(slit, 0, size);
slit->header.signature = ACPI_2_0_SLIT_SIGNATURE;
slit->header.revision = ACPI_2_0_SLIT_REVISION;
fixed_strcpy(slit->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(slit->header.oem_table_id, ACPI_OEM_TABLE_ID);
slit->header.oem_revision = ACPI_OEM_REVISION;
slit->header.creator_id = ACPI_CREATOR_ID;
slit->header.creator_revision = ACPI_CREATOR_REVISION;
for ( i = 0; i < num; i++ )
slit->entry[i] = config->numa.vdistance[i];
slit->localities = config->numa.nr_vnodes;
slit->header.length = size;
set_checksum(slit, offsetof(struct acpi_header, checksum), size);
return slit;
}
static int construct_passthrough_tables(struct acpi_ctxt *ctxt,
unsigned long *table_ptrs,
int nr_tables,
struct acpi_config *config)
{
unsigned long pt_addr;
struct acpi_header *header;
int nr_added;
int nr_max = (ACPI_MAX_SECONDARY_TABLES - nr_tables - 1);
uint32_t total = 0;
uint8_t *buffer;
if ( config->pt.addr == 0 )
return 0;
pt_addr = config->pt.addr;
for ( nr_added = 0; nr_added < nr_max; nr_added++ )
{
if ( (config->pt.length - total) < sizeof(struct acpi_header) )
break;
header = (struct acpi_header*)pt_addr;
buffer = ctxt->mem_ops.alloc(ctxt, header->length, 16);
if ( buffer == NULL )
break;
memcpy(buffer, header, header->length);
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, buffer);
total += header->length;
pt_addr += header->length;
}
return nr_added;
}
static int construct_secondary_tables(struct acpi_ctxt *ctxt,
unsigned long *table_ptrs,
struct acpi_config *config,
struct acpi_info *info)
{
int nr_tables = 0;
struct acpi_20_madt *madt;
struct acpi_20_hpet *hpet;
struct acpi_20_waet *waet;
struct acpi_20_tcpa *tcpa;
struct acpi_20_tpm2 *tpm2;
unsigned char *ssdt;
void *lasa;
/* MADT. */
if ( (config->hvminfo->nr_vcpus > 1) || config->hvminfo->apic_mode )
{
madt = construct_madt(ctxt, config, info);
if (!madt) return -1;
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, madt);
}
/* HPET. */
if ( info->hpet_present )
{
hpet = construct_hpet(ctxt, config);
if (!hpet) return -1;
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, hpet);
}
/* WAET. */
if ( config->table_flags & ACPI_HAS_WAET )
{
waet = construct_waet(ctxt, config);
if ( !waet )
return -1;
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, waet);
}
if ( config->table_flags & ACPI_HAS_SSDT_PM )
{
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_pm), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_pm, sizeof(ssdt_pm));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
}
if ( config->table_flags & ACPI_HAS_SSDT_S3 )
{
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_s3), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_s3, sizeof(ssdt_s3));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
}
if ( config->table_flags & ACPI_HAS_SSDT_S4 )
{
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_s4), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_s4, sizeof(ssdt_s4));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
}
if ( config->table_flags & ACPI_HAS_SSDT_LAPTOP_SLATE )
{
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_laptop_slate), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_laptop_slate, sizeof(ssdt_laptop_slate));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
}
/* TPM and its SSDT. */
if ( config->table_flags & ACPI_HAS_TPM )
{
switch ( config->tpm_version )
{
case 1:
if ( config->tis_hdr[0] == 0 || config->tis_hdr[0] == 0xffff ||
config->tis_hdr[1] == 0 || config->tis_hdr[1] == 0xffff )
break;
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_tpm), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_tpm, sizeof(ssdt_tpm));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
tcpa = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_tcpa), 16);
if (!tcpa) return -1;
memset(tcpa, 0, sizeof(*tcpa));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, tcpa);
tcpa->header.signature = ACPI_2_0_TCPA_SIGNATURE;
tcpa->header.length = sizeof(*tcpa);
tcpa->header.revision = ACPI_2_0_TCPA_REVISION;
fixed_strcpy(tcpa->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(tcpa->header.oem_table_id, ACPI_OEM_TABLE_ID);
tcpa->header.oem_revision = ACPI_OEM_REVISION;
tcpa->header.creator_id = ACPI_CREATOR_ID;
tcpa->header.creator_revision = ACPI_CREATOR_REVISION;
lasa = ctxt->mem_ops.alloc(ctxt, ACPI_2_0_TCPA_LAML_SIZE, 16);
if ( lasa )
{
tcpa->lasa = ctxt->mem_ops.v2p(ctxt, lasa);
tcpa->laml = ACPI_2_0_TCPA_LAML_SIZE;
memset(lasa, 0, tcpa->laml);
set_checksum(tcpa,
offsetof(struct acpi_header, checksum),
tcpa->header.length);
}
break;
case 2:
/*
* Check VID stored in bits 37:32 (3rd 16 bit word) of CRB
* identifier register. See table 16 of TCG PC client platform
* TPM profile specification for TPM 2.0.
*/
if ( config->crb_id[2] == 0 || config->crb_id[2] == 0xffff )
break;
ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_tpm2), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_tpm2, sizeof(ssdt_tpm2));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, ssdt);
tpm2 = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_tpm2), 16);
if (!tpm2) return -1;
memset(tpm2, 0, sizeof(*tpm2));
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, tpm2);
tpm2->header.signature = ACPI_2_0_TPM2_SIGNATURE;
tpm2->header.length = sizeof(*tpm2);
tpm2->header.revision = ACPI_2_0_TPM2_REVISION;
fixed_strcpy(tpm2->header.oem_id, ACPI_OEM_ID);
fixed_strcpy(tpm2->header.oem_table_id, ACPI_OEM_TABLE_ID);
tpm2->header.oem_revision = ACPI_OEM_REVISION;
tpm2->header.creator_id = ACPI_CREATOR_ID;
tpm2->header.creator_revision = ACPI_CREATOR_REVISION;
tpm2->platform_class = TPM2_ACPI_CLASS_CLIENT;
tpm2->control_area_address = TPM_CRB_CTRL_REQ;
tpm2->start_method = TPM2_START_METHOD_CRB;
tpm2->log_area_minimum_length = TPM_LOG_SIZE;
tpm2->log_area_start_address = TPM_LOG_AREA_ADDRESS;
set_checksum(tpm2,
offsetof(struct acpi_header, checksum),
tpm2->header.length);
break;
}
}
/* SRAT and SLIT */
if ( config->numa.nr_vnodes > 0 )
{
struct acpi_20_srat *srat = construct_srat(ctxt, config);
struct acpi_20_slit *slit = construct_slit(ctxt, config);
if ( srat )
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, srat);
else
printf("Failed to build SRAT, skipping...\n");
if ( slit )
table_ptrs[nr_tables++] = ctxt->mem_ops.v2p(ctxt, slit);
else
printf("Failed to build SLIT, skipping...\n");
}
/* Load any additional tables passed through. */
nr_tables += construct_passthrough_tables(ctxt, table_ptrs,
nr_tables, config);
table_ptrs[nr_tables] = 0;
return nr_tables;
}
/**
* Allocate and initialize Windows Generation ID
* If value is not present in the XenStore or if all zeroes
* the device will be not active
*
* Return 0 if memory failure, != 0 if success
*/
static int new_vm_gid(struct acpi_ctxt *ctxt,
struct acpi_config *config,
struct acpi_info *info)
{
uint64_t *buf;
info->vm_gid_addr = 0;
/* check for 0 ID*/
if ( !config->vm_gid[0] && !config->vm_gid[1] )
return 1;
/* copy to allocate BIOS memory */
buf = ctxt->mem_ops.alloc(ctxt, sizeof(config->vm_gid), 8);
if ( !buf )
return 0;
memcpy(buf, config->vm_gid, sizeof(config->vm_gid));
/* set the address into ACPI table and also pass it back to the caller */
info->vm_gid_addr = ctxt->mem_ops.v2p(ctxt, buf);
config->vm_gid_addr = info->vm_gid_addr;
return 1;
}
int acpi_build_tables(struct acpi_ctxt *ctxt, struct acpi_config *config)
{
struct acpi_info *acpi_info;
struct acpi_20_rsdp *rsdp;
struct acpi_20_rsdt *rsdt;
struct acpi_20_xsdt *xsdt;
struct acpi_fadt *fadt;
struct acpi_10_fadt *fadt_10;
struct acpi_20_facs *facs;
unsigned char *dsdt;
unsigned long secondary_tables[ACPI_MAX_SECONDARY_TABLES];
int nr_secondaries, i;
unsigned int fadt_size;
acpi_info = (struct acpi_info *)config->infop;
memset(acpi_info, 0, sizeof(*acpi_info));
acpi_info->com1_present = !!(config->table_flags & ACPI_HAS_COM1);
acpi_info->com2_present = !!(config->table_flags & ACPI_HAS_COM2);
acpi_info->lpt1_present = !!(config->table_flags & ACPI_HAS_LPT1);
acpi_info->hpet_present = !!(config->table_flags & ACPI_HAS_HPET);
acpi_info->pci_min = config->pci_start;
acpi_info->pci_len = config->pci_len;
if ( config->pci_hi_len )
{
acpi_info->pci_hi_min = config->pci_hi_start;
acpi_info->pci_hi_len = config->pci_hi_len;
}
/*
* Fill in high-memory data structures, starting at @buf.
*/
facs = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_facs), 64);
if (!facs) goto oom;
memcpy(facs, &Facs, sizeof(struct acpi_20_facs));
/*
* Alternative DSDTs we get linked against. A cover-all DSDT for up to the
* implementation-defined maximum number of VCPUs, and an alternative for use
* when a guest can only have up to 15 VCPUs.
*
* The latter is required for Windows 2000, which experiences a BSOD of
* KMODE_EXCEPTION_NOT_HANDLED if it sees more than 15 processor objects.
*/
if ( config->hvminfo->nr_vcpus <= 15 && config->dsdt_15cpu)
{
dsdt = ctxt->mem_ops.alloc(ctxt, config->dsdt_15cpu_len, 16);
if (!dsdt) goto oom;
memcpy(dsdt, config->dsdt_15cpu, config->dsdt_15cpu_len);
}
else
{
dsdt = ctxt->mem_ops.alloc(ctxt, config->dsdt_anycpu_len, 16);
if (!dsdt) goto oom;
memcpy(dsdt, config->dsdt_anycpu, config->dsdt_anycpu_len);
}
/*
* N.B. ACPI 1.0 operating systems may not handle FADT with revision 2
* or above properly, notably Windows 2000, which tries to copy FADT
* into a 116 bytes buffer thus causing an overflow. The solution is to
* link the higher revision FADT with the XSDT only and introduce a
* compatible revision 1 FADT that is linked with the RSDT. Refer to:
* http://www.acpi.info/presentations/S01USMOBS169_OS%20new.ppt
*/
fadt_10 = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_10_fadt), 16);
if (!fadt_10) goto oom;
memcpy(fadt_10, &Fadt, sizeof(struct acpi_10_fadt));
fadt_10->header.length = sizeof(struct acpi_10_fadt);
fadt_10->header.revision = ACPI_1_0_FADT_REVISION;
fadt_10->dsdt = ctxt->mem_ops.v2p(ctxt, dsdt);
fadt_10->firmware_ctrl = ctxt->mem_ops.v2p(ctxt, facs);
set_checksum(fadt_10,
offsetof(struct acpi_header, checksum),
sizeof(struct acpi_10_fadt));
switch ( config->acpi_revision )
{
case 4:
/*
* NB: we can use offsetof because there's no padding between
* x_gpe1_blk and sleep_control.
*/
fadt_size = offsetof(struct acpi_fadt, sleep_control);
break;
case 5:
fadt_size = sizeof(*fadt);
break;
default:
printf("ACPI revision %u not supported\n", config->acpi_revision);
return -1;
}
fadt = ctxt->mem_ops.alloc(ctxt, fadt_size, 16);
if (!fadt) goto oom;
if ( !(config->table_flags & ACPI_HAS_PMTIMER) )
{
Fadt.pm_tmr_blk = Fadt.pm_tmr_len = 0;
memset(&Fadt.x_pm_tmr_blk, 0, sizeof(Fadt.x_pm_tmr_blk));
}
if ( !(config->table_flags & ACPI_HAS_BUTTONS) )
Fadt.flags |= (ACPI_PWR_BUTTON | ACPI_SLP_BUTTON);
memcpy(fadt, &Fadt, fadt_size);
/*
* For both ACPI 4 and 5 the revision of the FADT matches the ACPI
* revision.
*/
fadt->header.revision = config->acpi_revision;
fadt->header.length = fadt_size;
fadt->dsdt = ctxt->mem_ops.v2p(ctxt, dsdt);
fadt->x_dsdt = ctxt->mem_ops.v2p(ctxt, dsdt);
fadt->firmware_ctrl = ctxt->mem_ops.v2p(ctxt, facs);
fadt->x_firmware_ctrl = ctxt->mem_ops.v2p(ctxt, facs);
if ( !(config->table_flags & ACPI_HAS_VGA) )
fadt->iapc_boot_arch |= ACPI_FADT_NO_VGA;
if ( config->table_flags & ACPI_HAS_8042 )
fadt->iapc_boot_arch |= ACPI_FADT_8042;
if ( !(config->table_flags & ACPI_HAS_CMOS_RTC) )
{
if ( fadt->header.revision < 5 )
{
printf("ACPI_FADT_NO_CMOS_RTC requires FADT revision 5\n");
return -1;
}
fadt->iapc_boot_arch |= ACPI_FADT_NO_CMOS_RTC;
}
set_checksum(fadt, offsetof(struct acpi_header, checksum), fadt_size);
nr_secondaries = construct_secondary_tables(ctxt, secondary_tables,
config, acpi_info);
if ( nr_secondaries < 0 )
goto oom;
xsdt = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_xsdt) +
sizeof(uint64_t) * nr_secondaries,
16);
if (!xsdt) goto oom;
memcpy(xsdt, &Xsdt, sizeof(struct acpi_header));
xsdt->entry[0] = ctxt->mem_ops.v2p(ctxt, fadt);
for ( i = 0; secondary_tables[i]; i++ )
xsdt->entry[i+1] = secondary_tables[i];
xsdt->header.length = sizeof(struct acpi_header) + (i+1)*sizeof(uint64_t);
set_checksum(xsdt,
offsetof(struct acpi_header, checksum),
xsdt->header.length);
rsdt = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_rsdt) +
sizeof(uint32_t) * nr_secondaries,
16);
if (!rsdt) goto oom;
memcpy(rsdt, &Rsdt, sizeof(struct acpi_header));
rsdt->entry[0] = ctxt->mem_ops.v2p(ctxt, fadt_10);
for ( i = 0; secondary_tables[i]; i++ )
rsdt->entry[i+1] = secondary_tables[i];
rsdt->header.length = sizeof(struct acpi_header) + (i+1)*sizeof(uint32_t);
set_checksum(rsdt,
offsetof(struct acpi_header, checksum),
rsdt->header.length);
/*
* Fill in low-memory data structures: acpi_info and RSDP.
*/
rsdp = (struct acpi_20_rsdp *)config->rsdp;
memcpy(rsdp, &Rsdp, sizeof(struct acpi_20_rsdp));
rsdp->rsdt_address = ctxt->mem_ops.v2p(ctxt, rsdt);
rsdp->xsdt_address = ctxt->mem_ops.v2p(ctxt, xsdt);
set_checksum(rsdp,
offsetof(struct acpi_10_rsdp, checksum),
sizeof(struct acpi_10_rsdp));
set_checksum(rsdp,
offsetof(struct acpi_20_rsdp, extended_checksum),
sizeof(struct acpi_20_rsdp));
if ( !new_vm_gid(ctxt, config, acpi_info) )
goto oom;
return 0;
oom:
printf("unable to build ACPI tables: out of memory\n");
return -1;
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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