void acpi_setup(PcGuestInfo *guest_info)
{
AcpiBuildTables tables;
AcpiBuildState *build_state;
if (!guest_info->fw_cfg) {
ACPI_BUILD_DPRINTF(3, "No fw cfg. Bailing out.\n");
return;
}
if (!guest_info->has_acpi_build) {
ACPI_BUILD_DPRINTF(3, "ACPI build disabled. Bailing out.\n");
return;
}
if (!acpi_enabled) {
ACPI_BUILD_DPRINTF(3, "ACPI disabled. Bailing out.\n");
return;
}
build_state = g_malloc0(sizeof *build_state);
build_state->guest_info = guest_info;
acpi_set_pci_info();
acpi_build_tables_init(&tables);
acpi_build(build_state->guest_info, &tables);
/* Now expose it all to Guest */
build_state->table_ram = acpi_add_rom_blob(build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE);
build_state->table_size = acpi_data_len(tables.table_data);
acpi_add_rom_blob(NULL, tables.linker, "etc/table-loader");
/*
* RSDP is small so it's easy to keep it immutable, no need to
* bother with ROM blobs.
*/
fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_RSDP_FILE,
tables.rsdp->data, acpi_data_len(tables.rsdp));
qemu_register_reset(acpi_build_reset, build_state);
acpi_build_reset(build_state);
vmstate_register(NULL, 0, &vmstate_acpi_build, build_state);
/* Cleanup tables but don't free the memory: we track it
* in build_state.
*/
acpi_build_tables_cleanup(&tables, false);
}
void virt_acpi_setup(VirtGuestInfo *guest_info)
{
AcpiBuildTables tables;
AcpiBuildState *build_state;
if (!guest_info->fw_cfg) {
trace_virt_acpi_setup();
return;
}
if (!acpi_enabled) {
trace_virt_acpi_setup();
return;
}
build_state = g_malloc0(sizeof *build_state);
build_state->guest_info = guest_info;
acpi_build_tables_init(&tables);
virt_acpi_build(build_state->guest_info, &tables);
/* Now expose it all to Guest */
build_state->table_mr = acpi_add_rom_blob(build_state, tables.table_data,
ACPI_BUILD_TABLE_FILE,
ACPI_BUILD_TABLE_MAX_SIZE);
assert(build_state->table_mr != NULL);
build_state->linker_mr =
acpi_add_rom_blob(build_state, tables.linker->cmd_blob,
"etc/table-loader", 0);
fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
tables.tcpalog->data, acpi_data_len(tables.tcpalog));
build_state->rsdp_mr = acpi_add_rom_blob(build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
qemu_register_reset(virt_acpi_build_reset, build_state);
virt_acpi_build_reset(build_state);
vmstate_register(NULL, 0, &vmstate_virt_acpi_build, build_state);
/* Cleanup tables but don't free the memory: we track it
* in build_state.
*/
acpi_build_tables_cleanup(&tables, false);
}
static void acpi_build_update(void *build_opaque, uint32_t offset)
{
AcpiBuildState *build_state = build_opaque;
AcpiBuildTables tables;
/* No state to update or already patched? Nothing to do. */
if (!build_state || build_state->patched) {
return;
}
build_state->patched = 1;
acpi_build_tables_init(&tables);
acpi_build(build_state->guest_info, &tables);
assert(acpi_data_len(tables.table_data) == build_state->table_size);
memcpy(build_state->table_ram, tables.table_data->data,
build_state->table_size);
acpi_build_tables_cleanup(&tables, true);
}
static void virt_acpi_build_update(void *build_opaque)
{
AcpiBuildState *build_state = build_opaque;
AcpiBuildTables tables;
/* No state to update or already patched? Nothing to do. */
if (!build_state || build_state->patched) {
return;
}
build_state->patched = true;
acpi_build_tables_init(&tables);
virt_acpi_build(build_state->guest_info, &tables);
acpi_ram_update(build_state->table_mr, tables.table_data);
acpi_ram_update(build_state->rsdp_mr, tables.rsdp);
acpi_ram_update(build_state->linker_mr, tables.linker);
acpi_build_tables_cleanup(&tables, true);
}
