diff options
| author | Eric Dong <eric.dong@intel.com> | 2017-10-11 09:25:07 +0800 |
|---|---|---|
| committer | Eric Dong <eric.dong@intel.com> | 2017-10-12 10:17:51 +0800 |
| commit | 18b13fabfa042a48c87a23dcf10f235b2fbdb884 (patch) | |
| tree | 8e6a28e77eebac5bff40c759e7a3b41570e729c2 /UefiCpuPkg/Universal | |
| parent | 59f0ef95e05f4a63da561bcb9bb6a0ebc6c034c5 (diff) | |
| download | edk2-18b13fabfa042a48c87a23dcf10f235b2fbdb884.tar.gz | |
UefiCpuPkg/S3Resume2Pei: Send S3 resume finished event to SmmCore.
Driver will send S3 resume finished event to SmmCore through communicate
buffer after it signals EndOfPei event.
V2 Changes:
1. Change structures name to avoid they start with EFI_.
2. Base on DXE phase bits to provide communication buffer, current implement
check both PEI and DXE phase.
V3 Changes:
1. Change structure name for better understanding.
2. Enhance communication buffer calculate logic to more accurate.
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'UefiCpuPkg/Universal')
| -rw-r--r-- | UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | 87 | ||||
| -rw-r--r-- | UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf | 4 |
2 files changed, 91 insertions, 0 deletions
diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c index e53ed21bdc..c2171cbd46 100644 --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c @@ -28,6 +28,9 @@ #include <Ppi/SmmAccess.h>
#include <Ppi/PostBootScriptTable.h>
#include <Ppi/EndOfPeiPhase.h>
+#include <Ppi/SmmCommunication.h>
+
+#include <Protocol/SmmEndOfS3Resume.h>
#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
@@ -151,6 +154,22 @@ typedef union { UINT64 Uint64;
} PAGE_TABLE_1G_ENTRY;
+//
+// Define two type of smm communicate headers.
+// One for 32 bits PEI + 64 bits DXE, the other for 32 bits PEI + 32 bits DXE case.
+//
+typedef struct {
+ EFI_GUID HeaderGuid;
+ UINT32 MessageLength;
+ UINT8 Data[1];
+} SMM_COMMUNICATE_HEADER_32;
+
+typedef struct {
+ EFI_GUID HeaderGuid;
+ UINT64 MessageLength;
+ UINT8 Data[1];
+} SMM_COMMUNICATE_HEADER_64;
+
#pragma pack()
//
@@ -430,6 +449,68 @@ IsLongModeWakingVector ( }
/**
+ Send EndOfS3Resume event to SmmCore through communication buffer way.
+
+ @retval EFI_SUCCESS Return send the event success.
+**/
+EFI_STATUS
+SignalEndOfS3Resume (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_SMM_COMMUNICATION_PPI *SmmCommunicationPpi;
+ UINTN CommSize;
+ SMM_COMMUNICATE_HEADER_32 Header32;
+ SMM_COMMUNICATE_HEADER_64 Header64;
+ VOID *CommBuffer;
+
+ DEBUG ((EFI_D_INFO, "SignalEndOfS3Resume - Enter\n"));
+
+ //
+ // This buffer consumed in DXE phase, so base on DXE mode to prepare communicate buffer.
+ // Detect whether DXE is 64 bits mode.
+ // if (sizeof(UINTN) == sizeof(UINT64), PEI already 64 bits, assume DXE also 64 bits.
+ // or (FeaturePcdGet (PcdDxeIplSwitchToLongMode)), Dxe will switch to 64 bits.
+ //
+ if ((sizeof(UINTN) == sizeof(UINT64)) || (FeaturePcdGet (PcdDxeIplSwitchToLongMode))) {
+ CommBuffer = &Header64;
+ Header64.MessageLength = 0;
+ CommSize = OFFSET_OF (SMM_COMMUNICATE_HEADER_64, Data);
+ } else {
+ CommBuffer = &Header32;
+ Header32.MessageLength = 0;
+ CommSize = OFFSET_OF (SMM_COMMUNICATE_HEADER_32, Data);
+ }
+ CopyGuid (CommBuffer, &gEdkiiSmmEndOfS3ResumeProtocolGuid);
+
+ //
+ // Get needed resource
+ //
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiSmmCommunicationPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&SmmCommunicationPpi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Send command
+ //
+ Status = SmmCommunicationPpi->Communicate (
+ SmmCommunicationPpi,
+ (VOID *)CommBuffer,
+ &CommSize
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ DEBUG ((EFI_D_INFO, "SignalEndOfS3Resume - Exit (%r)\n", Status));
+
+ return Status;
+}
+
+/**
Jump to OS waking vector.
The function will install boot script done PPI, report S3 resume status code, and then jump to OS waking vector.
@@ -504,6 +585,12 @@ S3ResumeBootOs ( ASSERT_EFI_ERROR (Status);
//
+ // Signal EndOfS3Resume event.
+ //
+ Status = SignalEndOfS3Resume ();
+ ASSERT_EFI_ERROR (Status);
+
+ //
// report status code on S3 resume
//
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);
diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf index d514523089..943f114e69 100644 --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf @@ -85,6 +85,10 @@ gPeiSmmAccessPpiGuid ## SOMETIMES_CONSUMES
gPeiPostScriptTablePpiGuid ## SOMETIMES_PRODUCES
gEfiEndOfPeiSignalPpiGuid ## SOMETIMES_PRODUCES
+ gEfiPeiSmmCommunicationPpiGuid ## SOMETIMES_CONSUMES
+
+[Protocols]
+ gEdkiiSmmEndOfS3ResumeProtocolGuid ## SOMETIMES_CONSUMES
[FeaturePcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES
|