From: "Boeuf, Sebastien" <sebastien.boeuf@intel.com>
To: devel@edk2.groups.io
Cc: jiewen.yao@intel.com, jordan.l.justen@intel.com,
kraxel@redhat.com, sebastien.boeuf@intel.com
Subject: [PATCH v5 3/7] OvmfPkg: Xen: Generate fdf include file from ELF header generator
Date: Tue, 1 Mar 2022 14:29:13 +0100 [thread overview]
Message-ID: <5b6b7ace7554eafc75ce1113cc029b89744bec2a.1646141266.git.sebastien.boeuf@intel.com> (raw)
In-Reply-To: <cover.1646141266.git.sebastien.boeuf@intel.com>
From: Sebastien Boeuf <sebastien.boeuf@intel.com>
Updating the fdf include file based on the run of the ELF header
generator. The diff from this patch is the result of:
$ gcc -o elf_gen OvmfPkg/OvmfXenElfHeaderGenerator.c
$ ./elf_gen 2097152 OvmfPkg/XenElfHeader.fdf.inc
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
| 60 ++++++++++++------------------------
1 file changed, 19 insertions(+), 41 deletions(-)
--git a/OvmfPkg/XenElfHeader.fdf.inc b/OvmfPkg/XenElfHeader.fdf.inc
index dbc1305d25..c4f04ad28b 100644
--- a/OvmfPkg/XenElfHeader.fdf.inc
+++ b/OvmfPkg/XenElfHeader.fdf.inc
@@ -8,57 +8,35 @@
##
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
+ 0x7f, 0x45, 0x4c, 0x46, 0x01, 0x01, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0xd0, 0xff, 0x2f, 0x00, # hdr.e_entry
+ 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x20, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
# 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
+ 0x01, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x10, 0x00,
+ 0x00, 0x00, 0x10, 0x00,
+ 0x00, 0x00, 0x20, 0x00,
+ 0x00, 0x00, 0x20, 0x00,
+ 0x07, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
# - ELFNOTE segment
- 0x04, 0x00, 0x00, 0x00, # p_type = PT_NOTE
- 0x74, 0x00, 0x00, 0x00, # p_offset = point to XEN_ELFNOTE_PHYS32_ENTRY below
+ 0x04, 0x00, 0x00, 0x00,
+ 0x74, 0x00, 0x00, 0x00,
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
+ 0x04, 0x00, 0x00, 0x00,
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
+ 0x04, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00,
+ 0x12, 0x00, 0x00, 0x00,
+ 0x58, 0x65, 0x6e, 0x00,
+ 0xd0, 0xff, 0x2f, 0x00
}
--
2.32.0
---------------------------------------------------------------------
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next prev parent reply other threads:[~2022-03-01 13:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-01 13:29 [PATCH v5 0/7] CloudHv: Rely on PVH boot specification Boeuf, Sebastien
2022-03-01 13:29 ` [PATCH v5 1/7] OvmfPkg: Make the Xen ELF header generator more flexible Boeuf, Sebastien
2022-03-01 13:29 ` [PATCH v5 2/7] OvmfPkg: Xen: Use a new fdf include for the PVH ELF header Boeuf, Sebastien
2022-03-01 13:29 ` Boeuf, Sebastien [this message]
2022-03-01 13:29 ` [PATCH v5 4/7] OvmfPkg: Generate CloudHv as a PVH ELF binary Boeuf, Sebastien
2022-03-02 7:17 ` [edk2-devel] " Gerd Hoffmann
2022-03-02 11:29 ` Boeuf, Sebastien
2022-03-01 13:29 ` [PATCH v5 5/7] OvmfPkg: CloudHv: Retrieve RSDP address from PVH Boeuf, Sebastien
2022-03-01 13:29 ` [PATCH v5 6/7] OvmfPkg: CloudHv: Rely on PVH memmap instead of CMOS Boeuf, Sebastien
2022-03-01 13:29 ` [PATCH v5 7/7] OvmfPkg: CloudHv: Add README Boeuf, Sebastien
2022-03-02 7:17 ` Gerd Hoffmann
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