audk/MdeModulePkg/Universal/Acpi
Star Zeng 01267e224b MdeModulePkg AcpiTableDxe: Install config table at ACPI data change
UEFI spec has clear description below:

Configuration Table Groups
The GUID for a configuration table also defines a corresponding event group GUID with the same value.
If the data represented by a configuration table is changed,
InstallConfigurationTable() should be called.
When InstallConfigurationTable() is called, the corresponding event is signaled.
When this event is signaled,
any components that cache information from the configuration table can optionally update their cached state.
For example, EFI_ACPI_TABLE_GUID defines a configuration table for ACPI data.
When ACPI data is changed, InstallConfigurationTable() is called.
During the execution of InstallConfigurationTable(),
a corresponding event group with EFI_ACPI_TABLE_GUID is signaled,
allowing an application to invalidate any cached ACPI data.

But current implementation only InstallConfigurationTable() at first time ACPI data change.
  if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) &&
      !AcpiTableInstance->TablesInstalled1) {
    Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiTableInstance->Rsdp1);
    if (EFI_ERROR (Status)) {
      return EFI_ABORTED;
    }

    AcpiTableInstance->TablesInstalled1 = TRUE;
  }

  if (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) &&
      !AcpiTableInstance->TablesInstalled3) {
    Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiTableInstance->Rsdp3);
    if (EFI_ERROR (Status)) {
      return EFI_ABORTED;
    }

    AcpiTableInstance->TablesInstalled3= TRUE;
  }

The AcpiTableInstance->TablesInstalled1 and AcpiTableInstance->TablesInstalled3 conditional judgment need to be removed.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17885 6f19259b-4bc3-4df7-8a09-765794883524
2015-07-08 09:44:46 +00:00
..
AcpiPlatformDxe MdeModulePkg: Convert non DOS format files to DOS format and remove unused module UNI files. 2014-09-03 08:39:12 +00:00
AcpiTableDxe MdeModulePkg AcpiTableDxe: Install config table at ACPI data change 2015-07-08 09:44:46 +00:00
BootGraphicsResourceTableDxe MdeModulePkg: Convert non DOS format files to DOS format and remove unused module UNI files. 2014-09-03 08:39:12 +00:00
BootScriptExecutorDxe MdeModulePkg BootScriptExecutorDxe: Fix 32bit build failure. 2015-03-19 02:08:27 +00:00
FirmwarePerformanceDataTableDxe MdeModulePkg: Update FirmwarePerformanceDataTableDxe for LegacyBoot 2015-05-08 07:44:59 +00:00
FirmwarePerformanceDataTablePei MdeModulePkg: Remove GetBootMode() at FirmwarePerformancePeiEntryPoint 2015-05-06 03:31:28 +00:00
FirmwarePerformanceDataTableSmm MdeModulePkg: Cleanup gEfiSmmAccess2ProtocolGuid reference. 2015-02-05 00:59:56 +00:00
S3SaveStateDxe MdeModulePkg: Convert non DOS format files to DOS format and remove unused module UNI files. 2014-09-03 08:39:12 +00:00
SmmS3SaveState MdeModulePkg: Convert non DOS format files to DOS format and remove unused module UNI files. 2014-09-03 08:39:12 +00:00