by default we do not version ACPI AML as it's considered
a part of firmware. Drop do_not_add_smb_acpi that blocked
SMBUS AML description on 3.1 and older machine types without
providing justification.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
we can keep this bit if anyone can prove/report adverse effect
on VM.
---
 include/hw/i386/pc.h | 1 -
 hw/i386/acpi-build.c | 2 +-
 hw/i386/pc_piix.c    | 1 -
 hw/i386/pc_q35.c     | 1 -
 4 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index aff8add155..da2ebfc33a 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -106,7 +106,6 @@ struct PCMachineClass {
     bool rsdp_in_ram;
     int legacy_acpi_table_size;
     unsigned acpi_data_size;
-    bool do_not_add_smb_acpi;
     int pci_root_uid;
 
     /* SMBIOS compat: */
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index ca5cab87ba..250a7c07af 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1510,7 +1510,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             build_x86_acpi_pci_hotplug(dsdt, pm->pcihp_io_base);
         }
         build_q35_pci0_int(dsdt);
-        if (pcms->smbus && !pcmc->do_not_add_smb_acpi) {
+        if (pcms->smbus) {
             build_smb0(dsdt, ICH9_SMB_DEV, ICH9_SMB_FUNC);
         }
     }
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index f843dd906f..d4b37b4652 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -562,7 +562,6 @@ static void pc_i440fx_3_1_machine_options(MachineClass *m)
 
     pc_i440fx_4_0_machine_options(m);
     m->is_default = false;
-    pcmc->do_not_add_smb_acpi = true;
     m->smbus_no_migration_support = true;
     m->alias = NULL;
     pcmc->pvh_enabled = false;
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 302288342a..ad3f519f77 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -512,7 +512,6 @@ static void pc_q35_3_1_machine_options(MachineClass *m)
 
     pc_q35_4_0_machine_options(m);
     m->default_kernel_irqchip_split = false;
-    pcmc->do_not_add_smb_acpi = true;
     m->smbus_no_migration_support = true;
     m->alias = NULL;
     pcmc->pvh_enabled = false;
-- 
2.31.1