I'll Nack this one until I get some more opinions from the other UEFI people (LEG, Olivier Martin, etc...?) to see what they think.
If we are to implement this type of feature, I'd like it to be done in a different kind of way. Perhaps adding a new boot type, eg, add BDS_LOADER_KERNEL_LINUX_AUTOBOOT to the ARM_BDS_LOADER_TYPE enum in ArmPlatformPkg/Bds/BdsInternal.h. Then, if the user selects that option, they get a magic boot. I don't like the idea that I configure, say, to boot uImage from the SD card, partition 3, but this feature finds a zImage in partition 1 and boots it. On 19 March 2013 11:27, Shivamurthy Shastri <[email protected]> wrote: > The patch been modified as per the new changes in > ArmPlatformPkg/Bds/BootOption.c > > Signed-off-by: Shivamurthy Shastri <[email protected]> > Signed-off-by: Rony Nandy <[email protected]> > --- > ...-created-to-incorporate-auto-boot-feature.patch | 101 > ++++++++++++--------- > 1 file changed, 57 insertions(+), 44 deletions(-) > > diff --git > a/SamsungPlatformPkg/patches/0001-The-patch-created-to-incorporate-auto-boot-feature.patch > > b/SamsungPlatformPkg/patches/0001-The-patch-created-to-incorporate-auto-boot-feature.patch > index 91aea96..550f15c 100644 > --- > a/SamsungPlatformPkg/patches/0001-The-patch-created-to-incorporate-auto-boot-feature.patch > +++ > b/SamsungPlatformPkg/patches/0001-The-patch-created-to-incorporate-auto-boot-feature.patch > @@ -1,31 +1,30 @@ > -From 011bc2be4b3f2a5a5413511d7380b6fe3632d0f5 Mon Sep 17 00:00:00 2001 > +From 3c9dabb0f20f41c37e1e18c7fcc9a39ce8bfc51d Mon Sep 17 00:00:00 2001 > From: Shivamurthy Shastri <[email protected]> > -Date: Wed, 5 Dec 2012 14:44:57 +0530 > +Date: Fri, 22 Feb 2013 14:33:57 +0530 > Subject: [PATCH] The patch created to incorporate auto boot feature for > arndale board. > > Signed-off-by: Shivamurthy Shastri <[email protected]> > --- > - ArmPlatformPkg/Bds/BootOption.c | 71 > ++++++++++++++++++++++++++++++++++++++--- > - 1 file changed, 67 insertions(+), 4 deletions(-) > + ArmPlatformPkg/Bds/BootOption.c | 85 > ++++++++++++++++++++++++++++++++++++----- > + 1 file changed, 75 insertions(+), 10 deletions(-) > > diff --git a/ArmPlatformPkg/Bds/BootOption.c > b/ArmPlatformPkg/Bds/BootOption.c > -index 289d36a..468050d 100644 > +index 78a4230..f35d039 100644 > --- a/ArmPlatformPkg/Bds/BootOption.c > +++ b/ArmPlatformPkg/Bds/BootOption.c > -@@ -14,6 +14,11 @@ > +@@ -13,6 +13,10 @@ > + **/ > > #include "BdsInternal.h" > - > +#include <Library/DxeServicesTableLib.h> > +#include <Protocol/BlockIo.h> > +#include <Guid/DebugImageInfoTable.h> > +#include <Protocol/DevicePathToText.h> > -+ > + > extern EFI_HANDLE mImageHandle; > > - EFI_STATUS > -@@ -22,26 +27,61 @@ BootOptionStart ( > +@@ -22,48 +26,91 @@ BootOptionStart ( > ) > { > EFI_STATUS Status; > @@ -37,22 +36,22 @@ index 289d36a..468050d 100644 > EFI_DEVICE_PATH_PROTOCOL* FdtDevicePath; > - EFI_DEVICE_PATH_PROTOCOL* DefaultFdtDevicePath; > - UINTN FdtDevicePathSize; > +- UINTN CmdLineSize; > + //EFI_DEVICE_PATH_PROTOCOL* DefaultFdtDevicePath; > + //UINTN FdtDevicePathSize; > - UINTN CmdLineSize; > ++ //UINTN CmdLineSize; > UINTN InitrdSize; > EFI_DEVICE_PATH* Initrd; > +- UINTN FdtLocalSize; > ++ //UINTN FdtLocalSize; > UINT16 LoadOptionIndexSize; > ++ UINTN HandleCount; > ++ EFI_HANDLE* HandleBuffer; > ++ UINTN Index; > ++ EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol; > ++ EFI_DEVICE_PATH_PROTOCOL* LoadImageDevicePath; > ++ EFI_DEVICE_PATH_PROTOCOL* FileSystemDevicePath; > > -+ UINTN HandleCount; > -+ EFI_HANDLE *HandleBuffer; > -+ UINTN Index; > -+ //CHAR16* String; > -+ //EFI_DEVICE_PATH_PROTOCOL* DevicePathProtocol; > -+ EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol; > -+ EFI_DEVICE_PATH_PROTOCOL *LoadImageDevicePath; > -+ EFI_DEVICE_PATH_PROTOCOL *FileSystemDevicePath; > -+ > if (IS_ARM_BDS_BOOTENTRY (BootOption)) { > Status = EFI_UNSUPPORTED; > OptionalData = BootOption->OptionalData; > @@ -72,12 +71,6 @@ index 289d36a..468050d 100644 > + return Status; > + } > + > -+ /*for (Index = 0; Index < HandleCount; Index++) { > -+ Status = gBS->HandleProtocol (HandleBuffer[Index], > &gEfiDevicePathProtocolGuid, (VOID **)&DevicePathProtocol); > -+ String = > DevicePathToTextProtocol->ConvertDevicePathToText(DevicePathProtocol,TRUE,TRUE); > -+ Print (L"[0x%X] %s\n",(UINT32)HandleBuffer[Index], String); > -+ }*/ > -+ > + for (Index = 0; Index < HandleCount; Index++) { > + //Get the device path > + FileSystemDevicePath = DevicePathFromHandle(HandleBuffer[Index]); > @@ -91,15 +84,30 @@ index 289d36a..468050d 100644 > > Status = BdsStartEfiApplication (mImageHandle, > BootOption->FilePathList, 0, NULL); > } else if (LoaderType == BDS_LOADER_KERNEL_LINUX_ATAG) { > -@@ -55,9 +95,18 @@ BootOptionStart ( > + LinuxArguments = &(OptionalData->Arguments.LinuxArguments); > +- CmdLineSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->CmdLineSize); > ++ //CmdLineSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->CmdLineSize); > + InitrdSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->InitrdSize); > + > ++#if 0 > + if (InitrdSize > 0) { > + Initrd = GetAlignedDevicePath > ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize)); > + } else { > Initrd = NULL; > } > - > +- > ++#endif > ++ > + //Check if zImage file on SD-MMC. > + LoadImageDevicePath = FileDevicePath(HandleBuffer[Index], L"uImage"); > ++ if (InitrdSize > 0) { > ++ Initrd = FileDevicePath(HandleBuffer[Index], L"uInitrd"); > ++ } else { > ++ Initrd = NULL; > ++ } > + Status = BdsBootLinuxAtag (LoadImageDevicePath, Initrd, > (CHAR8*)(LinuxArguments + 1)); > + if (EFI_ERROR(Status)) { > -+ continue; > ++ continue; > + } > + > +#if 0 > @@ -107,33 +115,38 @@ index 289d36a..468050d 100644 > Initrd, // Initrd > (CHAR8*)(LinuxArguments + 1)); // CmdLine > +#endif > - } else if (LoaderType == BDS_LOADER_KERNEL_LINUX_FDT) { > + } else if ((LoaderType == BDS_LOADER_KERNEL_LINUX_GLOBAL_FDT) || > (LoaderType == BDS_LOADER_KERNEL_LINUX_LOCAL_FDT)) { > LinuxArguments = &(OptionalData->Arguments.LinuxArguments); > - CmdLineSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->CmdLineSize); > -@@ -69,6 +118,7 @@ BootOptionStart ( > - Initrd = NULL; > - } > +- CmdLineSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->CmdLineSize); > ++ //CmdLineSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->CmdLineSize); > + InitrdSize = ReadUnaligned16 ((CONST > UINT16*)&LinuxArguments->InitrdSize); > > +#if 0 > - // Get the default FDT device path > - Status = gBS->LocateProtocol (&gEfiDevicePathFromTextProtocolGuid, > NULL, (VOID **)&EfiDevicePathFromTextProtocol); > - ASSERT_EFI_ERROR(Status); > -@@ -78,13 +128,26 @@ BootOptionStart ( > - FdtDevicePathSize = GetDevicePathSize (DefaultFdtDevicePath); > - Status = GetEnvironmentVariable ((CHAR16 *)L"Fdt", > DefaultFdtDevicePath, &FdtDevicePathSize, (VOID **)&FdtDevicePath); > - ASSERT_EFI_ERROR(Status); > + if (InitrdSize > 0) { > + Initrd = GetAlignedDevicePath > ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize)); > + } else { > +@@ -89,13 +136,31 @@ BootOptionStart ( > + Status = GetEnvironmentVariable ((CHAR16 *)L"Fdt", > DefaultFdtDevicePath, &FdtDevicePathSize, (VOID **)&FdtDevicePath); > + ASSERT_EFI_ERROR(Status); > + } > +- > +#endif > + > + //Check if zImage file on SD-MMC. > + LoadImageDevicePath = FileDevicePath(HandleBuffer[Index], L"uImage"); > -+ FdtDevicePath = FileDevicePath(HandleBuffer[Index], > L"exynos5250-arndale.dtb"); > ++ FdtDevicePath = FileDevicePath(HandleBuffer[Index], L"board.dtb"); > ++ if (InitrdSize > 0) { > ++ Initrd = FileDevicePath(HandleBuffer[Index], L"uInitrd"); > ++ } else { > ++ Initrd = NULL; > ++ } > + Status = BdsBootLinuxFdt (LoadImageDevicePath, Initrd, > (CHAR8*)(LinuxArguments + 1), FdtDevicePath); > + FreePool (FdtDevicePath); > + if (EFI_ERROR(Status)) { > + continue; > + } > + } > - > ++ > +#if 0 > Status = BdsBootLinuxFdt (BootOption->FilePathList, > Initrd, // Initrd > @@ -146,5 +159,5 @@ index 289d36a..468050d 100644 > } else { > // Set BootCurrent variable > -- > -1.8.0 > +1.8.1.1 > > -- > 1.8.2 > _______________________________________________ boot-architecture mailing list [email protected] http://lists.linaro.org/mailman/listinfo/boot-architecture
