Commit Graph

6 Commits

Author SHA1 Message Date
Aiden Park 9193a72864 Support booting to 64-bit kernel entry point (#550)
This will allow OsLoader payload to boot to 64-bit kernel entry point.
If CPU supports 64-bit mode and a kernel image has 64-bit entry point,
OsLoader will switch to 64-bit long mode and jump to the 64-bit entry
point. Otherwise, continue to boot to 32-bit entry point.
- Ported necessary code from EDK2 VitualMemory.c in MdeModulePkg
- Moved PagingLib from BootloaderCorePkg to BootloaderCommonPkg
- Removed unused FlushCacheLine
- TBD: 64-bit IDT

Next step is to support 64-bit Payload.
- 32-bit compatible mode
- 64-bit CryptoLib
- etc.

Signed-off-by: Aiden Park <aiden.park@intel.com>
2020-02-04 10:44:45 -08:00
Aiden Park 644cc84823 OsLoader clean-up to use common LinuxLib (#547)
This will allow OsLoader to use LinuxLib for legacy linux boot
and remove duplicated code.

Signed-off-by: Aiden Park <aiden.park@intel.com>
2020-01-30 15:24:19 -08:00
Aiden Park b24fd2759c Cosmetic: Convert LF to CRLF
This will fully support PatchCheck.py.
- Remove all trailing whitespace
- Convert LF to CRLF by default
- Update EFI_D_* to DEBUG_*
- Re-enable CRLF check in PatchCheck.py

Signed-off-by: Aiden Park <aiden.park@intel.com>
2019-12-02 16:21:19 -08:00
Maurice Ma 19a0890a54 Break Load Linux BzImage into more functions
This patch splitted LoadBzImage() into two functions.  One is just
for kernel loading.  The other one UpdateLinuxBootParams() is for
Linux boot parameter updates. It is required to do so because when
kernel loading in Stage2 is enabled the loading occurs before all
HOBs are finalized. The Linux boot parameters depend on HOBs to fill
correct information, such as frame buffer. With this patch, the boot
parameters can be updated at the very end.

Signed-off-by: Maurice Ma <maurice.ma@intel.com>
2019-08-12 10:40:11 -07:00
Maurice Ma de675ac5af Fix Linux framebuffer boot parameters
Current SBL code depends on PixelInformation to fill kernel
framebuffer parameters. However, this info is only valid if
PixelFormat is PixelBitMask type. Since FSP will only produce
8bit per pixel format, it is better to use PixelFormat to
determine the pixel bit size and position information. This
patch added this logic. It also fixed #260 .

Signed-off-by: Maurice Ma <maurice.ma@intel.com>
2019-08-12 08:33:42 -07:00
Maurice Ma 4a5af4f8b0 Add Linux Kernel Boot Support in Stage2
OsLoader has the capability to boot a Linux kernel. However, to support
LinuxBoot type of payload, it is required to load kernel in Stage2. This
patch abstracts the standard Linux loading logic into common LinuxLib
class so that it can be linked in Stage2 or Payload such as OsLoader.
A new PcdLinuxPayloadEnabled is introduced to control if this feature
should be enabled or not.

To boot a Linux kernel from Stage2, it is required to put the command
line file and kernel image into the EPAYLOAD container during the build.
And the PayloadId CFGDATA needs to be set to 'LINX'.
For example:
  python BuildLoader.py build qemu
         -p OsLoader.efi::Lz4;vmlinuz:LINX:Dummy;cmdline.txt:CMDL:Dummy
vmlinuz and cmdkube.txt need to be copied to PayloadPkg/PayloadBins
folder. If kernel size cannot fit into EPAYLOAD, EPAYLOAD_SIZE in
BoardConfig.py needs to be adjusted accordingly.

Signed-off-by: Maurice Ma <maurice.ma@intel.com>
2019-08-09 16:48:12 -07:00