diff options
Diffstat (limited to 'OvmfPkg/AcpiPlatformDxe/BootScript.c')
| -rw-r--r-- | OvmfPkg/AcpiPlatformDxe/BootScript.c | 115 |
1 files changed, 61 insertions, 54 deletions
diff --git a/OvmfPkg/AcpiPlatformDxe/BootScript.c b/OvmfPkg/AcpiPlatformDxe/BootScript.c index efcf2e3ba5..08d0f41bda 100644 --- a/OvmfPkg/AcpiPlatformDxe/BootScript.c +++ b/OvmfPkg/AcpiPlatformDxe/BootScript.c @@ -14,20 +14,18 @@ #include "AcpiPlatform.h"
-
//
// Condensed structure for capturing the fw_cfg operations -- select, skip,
// write -- inherent in executing a QEMU_LOADER_WRITE_POINTER command.
//
typedef struct {
- UINT16 PointerItem; // resolved from QEMU_LOADER_WRITE_POINTER.PointerFile
- UINT8 PointerSize; // copied as-is from QEMU_LOADER_WRITE_POINTER
- UINT32 PointerOffset; // copied as-is from QEMU_LOADER_WRITE_POINTER
- UINT64 PointerValue; // resolved from QEMU_LOADER_WRITE_POINTER.PointeeFile
- // and QEMU_LOADER_WRITE_POINTER.PointeeOffset
+ UINT16 PointerItem; // resolved from QEMU_LOADER_WRITE_POINTER.PointerFile
+ UINT8 PointerSize; // copied as-is from QEMU_LOADER_WRITE_POINTER
+ UINT32 PointerOffset; // copied as-is from QEMU_LOADER_WRITE_POINTER
+ UINT64 PointerValue; // resolved from QEMU_LOADER_WRITE_POINTER.PointeeFile
+ // and QEMU_LOADER_WRITE_POINTER.PointeeOffset
} CONDENSED_WRITE_POINTER;
-
//
// Context structure to accumulate CONDENSED_WRITE_POINTER objects from
// QEMU_LOADER_WRITE_POINTER commands.
@@ -36,27 +34,25 @@ typedef struct { // context structure is released, all pointed-to objects must be released too.
//
struct S3_CONTEXT {
- CONDENSED_WRITE_POINTER *WritePointers; // one array element per processed
- // QEMU_LOADER_WRITE_POINTER
- // command
- UINTN Allocated; // number of elements allocated for
- // WritePointers
- UINTN Used; // number of elements populated in
- // WritePointers
+ CONDENSED_WRITE_POINTER *WritePointers; // one array element per processed
+ // QEMU_LOADER_WRITE_POINTER
+ // command
+ UINTN Allocated; // number of elements allocated for
+ // WritePointers
+ UINTN Used; // number of elements populated in
+ // WritePointers
};
-
//
// Scratch buffer, allocated in EfiReservedMemoryType type memory, for the ACPI
// S3 Boot Script opcodes to work on.
//
#pragma pack (1)
typedef union {
- UINT64 PointerValue; // filled in from CONDENSED_WRITE_POINTER.PointerValue
+ UINT64 PointerValue; // filled in from CONDENSED_WRITE_POINTER.PointerValue
} SCRATCH_BUFFER;
#pragma pack ()
-
/**
Allocate an S3_CONTEXT object.
@@ -75,12 +71,12 @@ typedef union { **/
EFI_STATUS
AllocateS3Context (
- OUT S3_CONTEXT **S3Context,
- IN UINTN WritePointerCount
+ OUT S3_CONTEXT **S3Context,
+ IN UINTN WritePointerCount
)
{
- EFI_STATUS Status;
- S3_CONTEXT *Context;
+ EFI_STATUS Status;
+ S3_CONTEXT *Context;
if (WritePointerCount == 0) {
return EFI_INVALID_PARAMETER;
@@ -91,15 +87,17 @@ AllocateS3Context ( return EFI_OUT_OF_RESOURCES;
}
- Context->WritePointers = AllocatePool (WritePointerCount *
- sizeof *Context->WritePointers);
+ Context->WritePointers = AllocatePool (
+ WritePointerCount *
+ sizeof *Context->WritePointers
+ );
if (Context->WritePointers == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto FreeContext;
}
Context->Allocated = WritePointerCount;
- *S3Context = Context;
+ *S3Context = Context;
return EFI_SUCCESS;
FreeContext:
@@ -108,7 +106,6 @@ FreeContext: return Status;
}
-
/**
Release an S3_CONTEXT object.
@@ -116,14 +113,13 @@ FreeContext: **/
VOID
ReleaseS3Context (
- IN S3_CONTEXT *S3Context
+ IN S3_CONTEXT *S3Context
)
{
FreePool (S3Context->WritePointers);
FreePool (S3Context);
}
-
/**
Save the information necessary to replicate a QEMU_LOADER_WRITE_POINTER
command during S3 resume, in condensed format.
@@ -158,31 +154,38 @@ ReleaseS3Context ( **/
EFI_STATUS
SaveCondensedWritePointerToS3Context (
- IN OUT S3_CONTEXT *S3Context,
- IN UINT16 PointerItem,
- IN UINT8 PointerSize,
- IN UINT32 PointerOffset,
- IN UINT64 PointerValue
+ IN OUT S3_CONTEXT *S3Context,
+ IN UINT16 PointerItem,
+ IN UINT8 PointerSize,
+ IN UINT32 PointerOffset,
+ IN UINT64 PointerValue
)
{
- CONDENSED_WRITE_POINTER *Condensed;
+ CONDENSED_WRITE_POINTER *Condensed;
if (S3Context->Used == S3Context->Allocated) {
return EFI_OUT_OF_RESOURCES;
}
- Condensed = S3Context->WritePointers + S3Context->Used;
+
+ Condensed = S3Context->WritePointers + S3Context->Used;
Condensed->PointerItem = PointerItem;
Condensed->PointerSize = PointerSize;
Condensed->PointerOffset = PointerOffset;
Condensed->PointerValue = PointerValue;
- DEBUG ((DEBUG_VERBOSE, "%a: 0x%04x/[0x%08x+%d] := 0x%Lx (%Lu)\n",
- __FUNCTION__, PointerItem, PointerOffset, PointerSize, PointerValue,
- (UINT64)S3Context->Used));
+ DEBUG ((
+ DEBUG_VERBOSE,
+ "%a: 0x%04x/[0x%08x+%d] := 0x%Lx (%Lu)\n",
+ __FUNCTION__,
+ PointerItem,
+ PointerOffset,
+ PointerSize,
+ PointerValue,
+ (UINT64)S3Context->Used
+ ));
++S3Context->Used;
return EFI_SUCCESS;
}
-
/**
FW_CFG_BOOT_SCRIPT_CALLBACK_FUNCTION provided to QemuFwCfgS3Lib.
**/
@@ -190,31 +193,33 @@ STATIC VOID
EFIAPI
AppendFwCfgBootScript (
- IN OUT VOID *Context OPTIONAL,
- IN OUT VOID *ExternalScratchBuffer
+ IN OUT VOID *Context OPTIONAL,
+ IN OUT VOID *ExternalScratchBuffer
)
{
- S3_CONTEXT *S3Context;
- SCRATCH_BUFFER *ScratchBuffer;
- UINTN Index;
+ S3_CONTEXT *S3Context;
+ SCRATCH_BUFFER *ScratchBuffer;
+ UINTN Index;
- S3Context = Context;
+ S3Context = Context;
ScratchBuffer = ExternalScratchBuffer;
for (Index = 0; Index < S3Context->Used; ++Index) {
- CONST CONDENSED_WRITE_POINTER *Condensed;
- RETURN_STATUS Status;
+ CONST CONDENSED_WRITE_POINTER *Condensed;
+ RETURN_STATUS Status;
Condensed = &S3Context->WritePointers[Index];
- Status = QemuFwCfgS3ScriptSkipBytes (Condensed->PointerItem,
- Condensed->PointerOffset);
+ Status = QemuFwCfgS3ScriptSkipBytes (
+ Condensed->PointerItem,
+ Condensed->PointerOffset
+ );
if (RETURN_ERROR (Status)) {
goto FatalError;
}
ScratchBuffer->PointerValue = Condensed->PointerValue;
- Status = QemuFwCfgS3ScriptWriteBytes (-1, Condensed->PointerSize);
+ Status = QemuFwCfgS3ScriptWriteBytes (-1, Condensed->PointerSize);
if (RETURN_ERROR (Status)) {
goto FatalError;
}
@@ -230,7 +235,6 @@ FatalError: CpuDeadLoop ();
}
-
/**
Translate and append the information from an S3_CONTEXT object to the ACPI S3
Boot Script.
@@ -253,17 +257,20 @@ FatalError: **/
EFI_STATUS
TransferS3ContextToBootScript (
- IN S3_CONTEXT *S3Context
+ IN S3_CONTEXT *S3Context
)
{
- RETURN_STATUS Status;
+ RETURN_STATUS Status;
if (S3Context->Used == 0) {
ReleaseS3Context (S3Context);
return EFI_SUCCESS;
}
- Status = QemuFwCfgS3CallWhenBootScriptReady (AppendFwCfgBootScript,
- S3Context, sizeof (SCRATCH_BUFFER));
+ Status = QemuFwCfgS3CallWhenBootScriptReady (
+ AppendFwCfgBootScript,
+ S3Context,
+ sizeof (SCRATCH_BUFFER)
+ );
return (EFI_STATUS)Status;
}
|