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UefiCpuPkg/CpuS3DataDxe: Consume PcdAcpiS3Enable to control the code 

If PcdAcpiS3Enable is disabled, then return an EFI_UNSUPPORTED
error which forces the module to be unloaded.

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Star Zeng 2016-07-18 11:31:28 +08:00 committed by Michael Kinney
parent 5322ee484b
commit ca98f60382
2 changed files with 7 additions and 0 deletions
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5
UefiCpuPkg/CpuS3DataDxe/CpuS3Data.c
View File

@ -133,6 +133,7 @@ CpuS3DataOnEndOfDxe (
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval EFI_UNSUPPORTED Do not support ACPI S3.
@retval other Some error occurs when executing this entry point.
**/
@ -160,6 +161,10 @@ CpuS3DataInitialize (
VOID *Idt;
EFI_EVENT Event;
if (!PcdGetBool (PcdAcpiS3Enable)) {
return EFI_UNSUPPORTED;
}
//
// Allocate ACPI NVS memory below 4G memory for use on ACPI S3 resume.
//

2
UefiCpuPkg/CpuS3DataDxe/CpuS3DataDxe.inf
View File

@ -41,6 +41,7 @@
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
UefiCpuPkg/UefiCpuPkg.dec
[LibraryClasses]
@ -60,6 +61,7 @@
[Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuS3DataAddress ## PRODUCES
gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiS3Enable ## CONSUMES
[Depex]
gEfiMpServiceProtocolGuid