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-rw-r--r--EmbeddedPkg/EmbeddedPkg.dec1
-rw-r--r--EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c218
-rw-r--r--EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf5
3 files changed, 202 insertions, 22 deletions
diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index c2068ce..7638aaa 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -86,6 +86,7 @@
[PcdsFeatureFlag.common]
gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob|FALSE|BOOLEAN|0x0000001b
gEmbeddedTokenSpaceGuid.PcdGdbSerial|FALSE|BOOLEAN|0x00000053
+ gEmbeddedTokenSpaceGuid.PcdAndroidBootLoadFile2|FALSE|BOOLEAN|0x0000005b
[PcdsFixedAtBuild.common]
gEmbeddedTokenSpaceGuid.PcdPrePiStackBase|0|UINT32|0x0000000b
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
index 4f8ff5b..cc39fef 100644
--- a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
@@ -10,12 +10,16 @@
#include <libfdt.h>
#include <Library/AndroidBootImgLib.h>
#include <Library/PrintLib.h>
+#include <Library/DevicePathLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Protocol/AndroidBootImg.h>
+#include <Protocol/LoadFile2.h>
#include <Protocol/LoadedImage.h>
+#include <Guid/LinuxEfiInitrdMedia.h>
+
#define FDT_ADDITIONAL_ENTRIES_SIZE 0x400
typedef struct {
@@ -23,7 +27,15 @@ typedef struct {
EFI_DEVICE_PATH_PROTOCOL End;
} MEMORY_DEVICE_PATH;
+typedef struct {
+ VENDOR_DEVICE_PATH VendorMediaNode;
+ EFI_DEVICE_PATH_PROTOCOL EndNode;
+} RAMDISK_DEVICE_PATH;
+
STATIC ANDROID_BOOTIMG_PROTOCOL *mAndroidBootImg;
+STATIC VOID *mRamdiskData = NULL;
+STATIC UINTN mRamdiskSize = 0;
+STATIC EFI_HANDLE mRamDiskLoadFileHandle = NULL;
STATIC CONST MEMORY_DEVICE_PATH mMemoryDevicePathTemplate =
{
@@ -46,6 +58,99 @@ STATIC CONST MEMORY_DEVICE_PATH mMemoryDevicePathTemplate =
} // End
};
+STATIC CONST RAMDISK_DEVICE_PATH mRamdiskDevicePath =
+{
+ {
+ {
+ MEDIA_DEVICE_PATH,
+ MEDIA_VENDOR_DP,
+ { sizeof (VENDOR_DEVICE_PATH), 0 }
+ },
+ LINUX_EFI_INITRD_MEDIA_GUID
+ },
+ {
+ END_DEVICE_PATH_TYPE,
+ END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
+ }
+};
+
+/**
+ Causes the driver to load a specified file.
+
+ @param This Protocol instance pointer.
+ @param FilePath The device specific path of the file to load.
+ @param BootPolicy Should always be FALSE.
+ @param BufferSize On input the size of Buffer in bytes. On output with a return
+ code of EFI_SUCCESS, the amount of data transferred to
+ Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
+ the size of Buffer required to retrieve the requested file.
+ @param Buffer The memory buffer to transfer the file to. IF Buffer is NULL,
+ then no the size of the requested file is returned in
+ BufferSize.
+
+ @retval EFI_SUCCESS The file was loaded.
+ @retval EFI_UNSUPPORTED BootPolicy is TRUE.
+ @retval EFI_INVALID_PARAMETER FilePath is not a valid device path, or
+ BufferSize is NULL.
+ @retval EFI_NO_MEDIA No medium was present to load the file.
+ @retval EFI_DEVICE_ERROR The file was not loaded due to a device error.
+ @retval EFI_NO_RESPONSE The remote system did not respond.
+ @retval EFI_NOT_FOUND The file was not found
+ @retval EFI_ABORTED The file load process was manually canceled.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current
+ directory entry. BufferSize has been updated with
+ the size needed to complete the request.
+
+
+**/
+EFI_STATUS
+EFIAPI
+AndroidBootImgLoadFile2 (
+ IN EFI_LOAD_FILE2_PROTOCOL *This,
+ IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
+ IN BOOLEAN BootPolicy,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer OPTIONAL
+ )
+
+{
+ // Verify if the valid parameters
+ if (This == NULL ||
+ BufferSize == NULL ||
+ FilePath == NULL ||
+ !IsDevicePathValid (FilePath, 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (BootPolicy) {
+ return EFI_UNSUPPORTED;
+ }
+
+ // Check if the given buffer size is big enough
+ // EFI_BUFFER_TOO_SMALL to allow caller to allocate a bigger buffer
+ if (mRamdiskSize == 0) {
+ return EFI_NOT_FOUND;
+ }
+ if (Buffer == NULL || *BufferSize < mRamdiskSize) {
+ *BufferSize = mRamdiskSize;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ // Copy InitRd
+ CopyMem (Buffer, mRamdiskData, mRamdiskSize);
+ *BufferSize = mRamdiskSize;
+
+ return EFI_SUCCESS;
+}
+
+///
+/// Load File Protocol instance
+///
+STATIC EFI_LOAD_FILE2_PROTOCOL mAndroidBootImgLoadFile2 = {
+ AndroidBootImgLoadFile2
+};
+
EFI_STATUS
AndroidBootImgGetImgSize (
IN VOID *BootImg,
@@ -215,6 +320,60 @@ AndroidBootImgUpdateArgs (
}
EFI_STATUS
+AndroidBootImgInstallLoadFile2 (
+ IN VOID *RamdiskData,
+ IN UINTN RamdiskSize
+ )
+{
+ mRamDiskLoadFileHandle = NULL;
+ mRamdiskData = RamdiskData;
+ mRamdiskSize = RamdiskSize;
+ return gBS->InstallMultipleProtocolInterfaces (
+ &mRamDiskLoadFileHandle,
+ &gEfiLoadFile2ProtocolGuid,
+ &mAndroidBootImgLoadFile2,
+ &gEfiDevicePathProtocolGuid,
+ &mRamdiskDevicePath,
+ NULL
+ );
+}
+
+EFI_STATUS
+AndroidBootImgUninstallLoadFile2 (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ Status = EFI_SUCCESS;
+ mRamdiskData = NULL;
+ mRamdiskSize = 0;
+ if (mRamDiskLoadFileHandle != NULL) {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ mRamDiskLoadFileHandle,
+ &gEfiLoadFile2ProtocolGuid,
+ &mAndroidBootImgLoadFile2,
+ &gEfiDevicePathProtocolGuid,
+ &mRamdiskDevicePath,
+ NULL
+ );
+ mRamDiskLoadFileHandle = NULL;
+ }
+ return Status;
+}
+
+BOOLEAN AndroidBootImgAcpiSupported (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ VOID *AcpiTable;
+
+ Status = EfiGetSystemConfigurationTable (&gEfiAcpiTableGuid, &AcpiTable);
+ return !EFI_ERROR (Status);
+}
+
+EFI_STATUS
AndroidBootImgLocateFdt (
IN VOID *BootImg,
IN VOID **FdtBase
@@ -325,23 +484,30 @@ AndroidBootImgUpdateFdt (
goto Fdt_Exit;
}
- ChosenNode = AndroidBootImgGetChosenNode(UpdatedFdtBase);
- if (!ChosenNode) {
- goto Fdt_Exit;
- }
+ if (FeaturePcdGet (PcdAndroidBootLoadFile2)) {
+ Status = AndroidBootImgInstallLoadFile2 (RamdiskData, RamdiskSize);
+ if (EFI_ERROR (Status)) {
+ goto Fdt_Exit;
+ }
+ } else {
+ ChosenNode = AndroidBootImgGetChosenNode(UpdatedFdtBase);
+ if (!ChosenNode) {
+ goto Fdt_Exit;
+ }
- Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
- "linux,initrd-start",
- (UINTN)RamdiskData);
- if (EFI_ERROR (Status)) {
- goto Fdt_Exit;
- }
+ Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
+ "linux,initrd-start",
+ (UINTN)RamdiskData);
+ if (EFI_ERROR (Status)) {
+ goto Fdt_Exit;
+ }
- Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
- "linux,initrd-end",
- (UINTN)RamdiskData + RamdiskSize);
- if (EFI_ERROR (Status)) {
- goto Fdt_Exit;
+ Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
+ "linux,initrd-end",
+ (UINTN)RamdiskData + RamdiskSize);
+ if (EFI_ERROR (Status)) {
+ goto Fdt_Exit;
+ }
}
if (mAndroidBootImg->UpdateDtb) {
@@ -422,14 +588,21 @@ AndroidBootImgBoot (
goto Exit;
}
- Status = AndroidBootImgLocateFdt (Buffer, &FdtBase);
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
+ if (AndroidBootImgAcpiSupported ()) {
+ Status = AndroidBootImgInstallLoadFile2 (RamdiskData, RamdiskSize);
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+ } else {
+ Status = AndroidBootImgLocateFdt (Buffer, &FdtBase);
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
- Status = AndroidBootImgUpdateFdt (Buffer, FdtBase, RamdiskData, RamdiskSize);
- if (EFI_ERROR (Status)) {
- goto Exit;
+ Status = AndroidBootImgUpdateFdt (Buffer, FdtBase, RamdiskData, RamdiskSize);
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
}
KernelDevicePath = mMemoryDevicePathTemplate;
@@ -473,5 +646,6 @@ Exit:
NewKernelArg = NULL;
}
}
+ AndroidBootImgUninstallLoadFile2 ();
return Status;
}
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
index bfed4ba..8eefeef 100644
--- a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
@@ -39,6 +39,11 @@
[Protocols]
gAndroidBootImgProtocolGuid
gEfiLoadedImageProtocolGuid
+ gEfiLoadFile2ProtocolGuid
[Guids]
+ gEfiAcpiTableGuid
gFdtTableGuid
+
+[FeaturePcd]
+ gEmbeddedTokenSpaceGuid.PcdAndroidBootLoadFile2
generated by cgit v1.1 at 2024-11-03 14:13:52 +0000