PCMachineClass::rsdp_in_ram was only used by the pc-i440fx-2.2 machine, which got removed. It is now always true. Remove it, simplifying acpi_setup(). Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> Reviewed-by: Zhao Liu <zhao1.liu@xxxxxxxxx> --- include/hw/i386/pc.h | 1 - hw/i386/acpi-build.c | 35 ++++------------------------------- hw/i386/pc.c | 1 - 3 files changed, 4 insertions(+), 33 deletions(-) diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 10a8ffa0de..96ccb4583f 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -100,7 +100,6 @@ struct PCMachineClass { /* ACPI compat: */ bool has_acpi_build; - bool rsdp_in_ram; unsigned acpi_data_size; int pci_root_uid; diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index ab2d4d8dcb..ed0adb0e82 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2495,7 +2495,6 @@ static void acpi_build(AcpiBuildTables *tables, MachineState *machine) { PCMachineState *pcms = PC_MACHINE(machine); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); X86MachineState *x86ms = X86_MACHINE(machine); DeviceState *iommu = pcms->iommu; GArray *table_offsets; @@ -2667,16 +2666,6 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine) .rsdt_tbl_offset = &rsdt, }; build_rsdp(tables->rsdp, tables->linker, &rsdp_data); - if (!pcmc->rsdp_in_ram) { - /* We used to allocate some extra space for RSDP revision 2 but - * only used the RSDP revision 0 space. The extra bytes were - * zeroed out and not used. - * Here we continue wasting those extra 16 bytes to make sure we - * don't break migration for machine types 2.2 and older due to - * RSDP blob size mismatch. - */ - build_append_int_noprefix(tables->rsdp, 0, 16); - } } /* We'll expose it all to Guest so we want to reduce @@ -2755,7 +2744,6 @@ static const VMStateDescription vmstate_acpi_build = { void acpi_setup(void) { PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); X86MachineState *x86ms = X86_MACHINE(pcms); AcpiBuildTables tables; AcpiBuildState *build_state; @@ -2817,25 +2805,10 @@ void acpi_setup(void) tables.vmgenid); } - if (!pcmc->rsdp_in_ram) { - /* - * Keep for compatibility with old machine types. - * Though RSDP is small, its contents isn't immutable, so - * we'll update it along with the rest of tables on guest access. - */ - uint32_t rsdp_size = acpi_data_len(tables.rsdp); - - build_state->rsdp = g_memdup(tables.rsdp->data, rsdp_size); - fw_cfg_add_file_callback(x86ms->fw_cfg, ACPI_BUILD_RSDP_FILE, - acpi_build_update, NULL, build_state, - build_state->rsdp, rsdp_size, true); - build_state->rsdp_mr = NULL; - } else { - build_state->rsdp = NULL; - build_state->rsdp_mr = acpi_add_rom_blob(acpi_build_update, - build_state, tables.rsdp, - ACPI_BUILD_RSDP_FILE); - } + build_state->rsdp = NULL; + build_state->rsdp_mr = acpi_add_rom_blob(acpi_build_update, + build_state, tables.rsdp, + ACPI_BUILD_RSDP_FILE); qemu_register_reset(acpi_build_reset, build_state); acpi_build_reset(build_state); diff --git a/hw/i386/pc.c b/hw/i386/pc.c index c4a7885a3b..a1b0e94523 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1745,7 +1745,6 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) pcmc->pci_enabled = true; pcmc->has_acpi_build = true; - pcmc->rsdp_in_ram = true; pcmc->smbios_defaults = true; pcmc->gigabyte_align = true; pcmc->has_reserved_memory = true; -- 2.41.0