[edk2-devel] [PATCH v5 2/7] OvmfPkg: Xen: Use a new fdf include for the PVH ELF header
Boeuf, Sebastien
sebastien.boeuf at intel.com
Tue Mar 1 13:29:12 UTC 2022
From: Sebastien Boeuf <sebastien.boeuf at intel.com>
Instead of having the PVH ELF header part of the fdf file directly, we
move it to a dedicated include file. This is the first step in
automating the generation of the header.
Acked-by: Gerd Hoffmann <kraxel at redhat.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf at intel.com>
---
OvmfPkg/OvmfXen.fdf | 57 ++------------------------------
OvmfPkg/XenElfHeader.fdf.inc | 64 ++++++++++++++++++++++++++++++++++++
2 files changed, 66 insertions(+), 55 deletions(-)
create mode 100644 OvmfPkg/XenElfHeader.fdf.inc
diff --git a/OvmfPkg/OvmfXen.fdf b/OvmfPkg/OvmfXen.fdf
index a6acf3b835..2e67db5d32 100644
--- a/OvmfPkg/OvmfXen.fdf
+++ b/OvmfPkg/OvmfXen.fdf
@@ -31,61 +31,8 @@ NumBlocks = $(FW_BLOCKS)
!if $(FD_SIZE_IN_KB) == 4096
0x00000000|0x00040000
!endif
-DATA = {
- #
- # This hex array have been generated by OvmfPkg/OvmfXenElfHeaderGenerator.c
- # and copied manually.
- #
- # ELF file header
- 0x7f, 0x45, 0x4c, 0x46, # e_ident[0..3]: Magic number
- 0x01, # File class: 32-bit objects
- 0x01, # Data encoding: 2's complement, little endian
- 0x01, # File version
- 0x03, # OS ABI identification: Object uses GNU ELF extensions
- 0x00, # ABI version
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, # e_ident[EI_PAD...]
- 0x02, 0x00, # e_type = Executable file
- 0x03, 0x00, # e_machine = Intel 80386
- 0x01, 0x00, 0x00, 0x00, # e_version
- 0xd0, 0xff, 0x2f, 0x00, # e_entry: Entry point virtual address
- 0x34, 0x00, 0x00, 0x00, # e_phoff: Program header table file offset
- 0x00, 0x00, 0x00, 0x00, # e_shoff: Section header table file offset
- 0x00, 0x00, 0x00, 0x00, # e_flags: Processor-specific flags
- 0x34, 0x00, # e_ehsize: ELF header size
- 0x20, 0x00, # e_phentsize: Program header table entry size
- 0x02, 0x00, # e_phnum: Program header table entry count
- 0x00, 0x00, # e_shentsize: Section header table entry size
- 0x00, 0x00, # e_shnum: Section header table entry count
- 0x00, 0x00, # e_shstrndx
-
- # ELF Program segment headers
- # - Load segment
- 0x01, 0x00, 0x00, 0x00, # p_type = Loadable program segment
- 0x00, 0x00, 0x00, 0x00, # p_offset
- 0x00, 0x00, 0x10, 0x00, # p_vaddr: Segment virtual address
- 0x00, 0x00, 0x10, 0x00, # p_paddr: Segment physical address
- 0x00, 0x00, 0x20, 0x00, # p_filesz: Segment size in file
- 0x00, 0x00, 0x20, 0x00, # p_memsz: Segment size in memory
- 0x07, 0x00, 0x00, 0x00, # p_flags = Segment is executable | writable | readable
- 0x00, 0x00, 0x00, 0x00, # p_align
- # - ELFNOTE segment
- 0x04, 0x00, 0x00, 0x00, # p_type = PT_NOTE
- 0x74, 0x00, 0x00, 0x00, # p_offset = point to XEN_ELFNOTE_PHYS32_ENTRY below
- 0x74, 0x00, 0x10, 0x00,
- 0x74, 0x00, 0x10, 0x00,
- 0x14, 0x00, 0x00, 0x00,
- 0x14, 0x00, 0x00, 0x00,
- 0x04, 0x00, 0x00, 0x00, # p_flags = Segment is readable
- 0x00, 0x00, 0x00, 0x00,
-
- # XEN_ELFNOTE_PHYS32_ENTRY
- 0x04, 0x00, 0x00, 0x00, # name size
- 0x04, 0x00, 0x00, 0x00, # desc size
- 0x12, 0x00, 0x00, 0x00, # type = XEN_ELFNOTE_PHYS32_ENTRY
- 0x58, 0x65, 0x6e, 0x00, # name = "Xen"
- 0xd0, 0xff, 0x2f, 0x00, # desc: PVH entry point
- 0x00
-}
+
+!include XenElfHeader.fdf.inc
!if ($(FD_SIZE_IN_KB) == 1024) || ($(FD_SIZE_IN_KB) == 2048)
0x0000e000|0x00001000
diff --git a/OvmfPkg/XenElfHeader.fdf.inc b/OvmfPkg/XenElfHeader.fdf.inc
new file mode 100644
index 0000000000..dbc1305d25
--- /dev/null
+++ b/OvmfPkg/XenElfHeader.fdf.inc
@@ -0,0 +1,64 @@
+## @file
+# FDF include file that defines a PVH ELF header.
+#
+# Copyright (c) 2022, Intel Corporation. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+DATA = {
+ #
+ # This hex array have been generated by OvmfPkg/OvmfXenElfHeaderGenerator.c
+ # and copied manually.
+ #
+ # ELF file header
+ 0x7f, 0x45, 0x4c, 0x46, # e_ident[0..3]: Magic number
+ 0x01, # File class: 32-bit objects
+ 0x01, # Data encoding: 2's complement, little endian
+ 0x01, # File version
+ 0x03, # OS ABI identification: Object uses GNU ELF extensions
+ 0x00, # ABI version
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, # e_ident[EI_PAD...]
+ 0x02, 0x00, # e_type = Executable file
+ 0x03, 0x00, # e_machine = Intel 80386
+ 0x01, 0x00, 0x00, 0x00, # e_version
+ 0xd0, 0xff, 0x2f, 0x00, # e_entry: Entry point virtual address
+ 0x34, 0x00, 0x00, 0x00, # e_phoff: Program header table file offset
+ 0x00, 0x00, 0x00, 0x00, # e_shoff: Section header table file offset
+ 0x00, 0x00, 0x00, 0x00, # e_flags: Processor-specific flags
+ 0x34, 0x00, # e_ehsize: ELF header size
+ 0x20, 0x00, # e_phentsize: Program header table entry size
+ 0x02, 0x00, # e_phnum: Program header table entry count
+ 0x00, 0x00, # e_shentsize: Section header table entry size
+ 0x00, 0x00, # e_shnum: Section header table entry count
+ 0x00, 0x00, # e_shstrndx
+
+ # ELF Program segment headers
+ # - Load segment
+ 0x01, 0x00, 0x00, 0x00, # p_type = Loadable program segment
+ 0x00, 0x00, 0x00, 0x00, # p_offset
+ 0x00, 0x00, 0x10, 0x00, # p_vaddr: Segment virtual address
+ 0x00, 0x00, 0x10, 0x00, # p_paddr: Segment physical address
+ 0x00, 0x00, 0x20, 0x00, # p_filesz: Segment size in file
+ 0x00, 0x00, 0x20, 0x00, # p_memsz: Segment size in memory
+ 0x07, 0x00, 0x00, 0x00, # p_flags = Segment is executable | writable | readable
+ 0x00, 0x00, 0x00, 0x00, # p_align
+ # - ELFNOTE segment
+ 0x04, 0x00, 0x00, 0x00, # p_type = PT_NOTE
+ 0x74, 0x00, 0x00, 0x00, # p_offset = point to XEN_ELFNOTE_PHYS32_ENTRY below
+ 0x74, 0x00, 0x10, 0x00,
+ 0x74, 0x00, 0x10, 0x00,
+ 0x14, 0x00, 0x00, 0x00,
+ 0x14, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00, # p_flags = Segment is readable
+ 0x00, 0x00, 0x00, 0x00,
+
+ # XEN_ELFNOTE_PHYS32_ENTRY
+ 0x04, 0x00, 0x00, 0x00, # name size
+ 0x04, 0x00, 0x00, 0x00, # desc size
+ 0x12, 0x00, 0x00, 0x00, # type = XEN_ELFNOTE_PHYS32_ENTRY
+ 0x58, 0x65, 0x6e, 0x00, # name = "Xen"
+ 0xd0, 0xff, 0x2f, 0x00, # desc: PVH entry point
+ 0x00
+}
--
2.32.0
---------------------------------------------------------------------
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