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ArmVirtPkg/ArmVirtXen: add ARM support 

This adds ARM support to the ArmVirtXen platform. As is the case for
AARCH64, the ARM port adheres to the ARM Linux boot protocol, i.e.,
it expects the address of a DTB describing the platform to be passed
in r2, and relocates itself at runtime to the actual load time memory
offset.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19333 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel 2015-12-17 17:11:33 +00:00 committed by abiesheuvel
parent 4008259841
commit f7de74afdd
2 changed files with 22 additions and 6 deletions
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7
ArmVirtPkg/ArmVirtXen.dsc
View File

@ -24,7 +24,7 @@
PLATFORM_VERSION = 0.1
DSC_SPECIFICATION = 0x00010005
OUTPUT_DIRECTORY = Build/ArmVirtXen-$(ARCH)
SUPPORTED_ARCHITECTURES = AARCH64
SUPPORTED_ARCHITECTURES = AARCH64|ARM
BUILD_TARGETS = DEBUG|RELEASE
SKUID_IDENTIFIER = DEFAULT
FLASH_DEFINITION = ArmVirtPkg/ArmVirtXen.fdf
@ -65,10 +65,10 @@
UefiScsiLib|MdePkg/Library/UefiScsiLib/UefiScsiLib.inf
[LibraryClasses.AARCH64.SEC]
ArmLib|ArmPkg/Library/ArmLib/AArch64/AArch64LibSec.inf
ArmLib|ArmPkg/Library/ArmLib/AArch64/AArch64LibPrePi.inf
[LibraryClasses.ARM.SEC]
ArmLib|ArmPkg/Library/ArmLib/ArmV7/ArmV7LibSec.inf
ArmLib|ArmPkg/Library/ArmLib/ArmV7/ArmV7LibPrePi.inf
[BuildOptions]
RVCT:*_*_ARM_PLATFORM_FLAGS == --cpu Cortex-A15 -I$(WORKSPACE)/ArmVirtPkg/Include
@ -167,7 +167,6 @@
PrePiLib|EmbeddedPkg/Library/PrePiLib/PrePiLib.inf
HobLib|EmbeddedPkg/Library/PrePiHobLib/PrePiHobLib.inf
PrePiHobListPointerLib|ArmPlatformPkg/Library/PrePiHobListPointerLib/PrePiHobListPointerLib.inf
ArmLib|ArmPkg/Library/ArmLib/AArch64/AArch64LibPrePi.inf
MemoryAllocationLib|EmbeddedPkg/Library/PrePiMemoryAllocationLib/PrePiMemoryAllocationLib.inf
SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf
}

21
ArmVirtPkg/ArmVirtXen.fdf
View File

@ -53,11 +53,12 @@ NumBlocks = 0x200
#
# Implement the Linux kernel header layout so that the Xen loader will identify
# it as something bootable, and execute it with a FDT pointer in x0. This area
# will be reused to store a copy of the FDT so round it up to 8 KB.
# it as something bootable, and execute it with a FDT pointer in x0 or r2.
# This area will be reused to store a copy of the FDT so round it up to 8 KB.
#
0x00000000|0x00002000
DATA = {
!if $(ARCH) == AARCH64
0x01, 0x00, 0x00, 0x10, # code0: adr x1, .
0xff, 0x07, 0x00, 0x14, # code1: b 0x2000
0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, # text_offset: 512 KB
@ -68,6 +69,22 @@ DATA = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, # res4
0x41, 0x52, 0x4d, 0x64, # magic: "ARM\x64"
0x00, 0x00, 0x00, 0x00 # res5
!else
0x08, 0x10, 0x4f, 0xe2, # adr r1, .
0x02, 0x00, 0xa0, 0xe1, # mov r0, r2 (DTB)
0x00, 0x00, 0xa0, 0xe1, # nop
0x00, 0x00, 0xa0, 0xe1, # nop
0x00, 0x00, 0xa0, 0xe1, # nop
0x00, 0x00, 0xa0, 0xe1, # nop
0x00, 0x00, 0xa0, 0xe1, # nop
0x00, 0x00, 0xa0, 0xe1, # nop
0xf6, 0x07, 0x00, 0xea, # b 0x2000
0x18, 0x28, 0x6f, 0x01, # magic
0x00, 0x00, 0x00, 0x00, # start
0x00, 0x00, 0x20, 0x00, # image size: 2 MB
0x01, 0x02, 0x03, 0x04 # endiannness flag
!endif
}
0x00002000|0x001fe000