diff options
| -rw-r--r-- | hw/i386/pc_piix.c | 40 | ||||
| -rw-r--r-- | include/hw/i386/pc.h | 1 |
2 files changed, 20 insertions, 21 deletions
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 9e486c6341..fa6f507e3b 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -61,8 +61,6 @@ static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 }; static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 }; static const int ide_irq[MAX_IDE_BUS] = { 14, 15 }; -static int legacy_acpi_table_size; - /* PC hardware initialisation */ static void pc_init1(MachineState *machine, const char *host_type, const char *pci_type) @@ -146,7 +144,7 @@ static void pc_init1(MachineState *machine, guest_info = pc_guest_info_init(pcms); guest_info->has_acpi_build = pcmc->has_acpi_build; - guest_info->legacy_acpi_table_size = legacy_acpi_table_size; + guest_info->legacy_acpi_table_size = pcmc->legacy_acpi_table_size; guest_info->isapc_ram_fw = !pcmc->pci_enabled; guest_info->has_reserved_memory = pcmc->has_reserved_memory; @@ -320,23 +318,6 @@ static void pc_compat_2_1(MachineState *machine) static void pc_compat_2_0(MachineState *machine) { pc_compat_2_1(machine); - /* This value depends on the actual DSDT and SSDT compiled into - * the source QEMU; unfortunately it depends on the binary and - * not on the machine type, so we cannot make pc-i440fx-1.7 work on - * both QEMU 1.7 and QEMU 2.0. - * - * Large variations cause migration to fail for more than one - * consecutive value of the "-smp" maxcpus option. - * - * For small variations of the kind caused by different iasl versions, - * the 4k rounding usually leaves slack. However, there could be still - * one or two values that break. For QEMU 1.7 and QEMU 2.0 the - * slack is only ~10 bytes before one "-smp maxcpus" value breaks! - * - * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on - * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. - */ - legacy_acpi_table_size = 6652; pc_set_legacy_acpi_data_size(); } @@ -344,7 +325,6 @@ static void pc_compat_1_7(MachineState *machine) { pc_compat_2_0(machine); option_rom_has_mr = true; - legacy_acpi_table_size = 6414; x86_cpu_change_kvm_default("x2apic", NULL); } @@ -520,6 +500,23 @@ static void pc_i440fx_2_0_machine_options(MachineClass *m) SET_MACHINE_COMPAT(m, PC_COMPAT_2_0); pcmc->smbios_legacy_mode = true; pcmc->has_reserved_memory = false; + /* This value depends on the actual DSDT and SSDT compiled into + * the source QEMU; unfortunately it depends on the binary and + * not on the machine type, so we cannot make pc-i440fx-1.7 work on + * both QEMU 1.7 and QEMU 2.0. + * + * Large variations cause migration to fail for more than one + * consecutive value of the "-smp" maxcpus option. + * + * For small variations of the kind caused by different iasl versions, + * the 4k rounding usually leaves slack. However, there could be still + * one or two values that break. For QEMU 1.7 and QEMU 2.0 the + * slack is only ~10 bytes before one "-smp maxcpus" value breaks! + * + * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on + * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418. + */ + pcmc->legacy_acpi_table_size = 6652; } DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0, @@ -535,6 +532,7 @@ static void pc_i440fx_1_7_machine_options(MachineClass *m) SET_MACHINE_COMPAT(m, PC_COMPAT_1_7); pcmc->smbios_defaults = false; pcmc->gigabyte_align = false; + pcmc->legacy_acpi_table_size = 6414; } DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7, diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 969852fddb..f858b8b692 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -89,6 +89,7 @@ struct PCMachineClass { bool gigabyte_align; bool has_reserved_memory; bool kvmclock_enabled; + int legacy_acpi_table_size; }; #define TYPE_PC_MACHINE "generic-pc-machine" |