The elf images can't be loaded correctly because
the elf_loader copy_to_gpa with wrong size.
The p_filesz and p_memsz both belong to elf32_prog_entry,
this data structure describes segments loaded in ram.
p_filesz means size of segment in file and p_memsz
means size of segment in memory.
ELF loader should copy elf_img to gpa with the
size of p_prg_tbl_head32->p_filesz.
Tracked-On: #8642
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This patch enable guest multiboot support. Try to find
the multiboot header in normal elf guest image.
Introduce the multiboot related basic functions to
initialize multiboot structure. Including
prepare_multiboot_mmap, prepare_loader_name and
find_img_multiboot_header.
Tracked-On: #8642
Signed-off-by: Victor Sun <victor.sun@intel.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
For the TEE and android kernelflinger boot requirements,
elf_loader need to support the multiboot protocol.
This patch define a memory block to store ELF format VM load
params in guest address space. At the same time, prepare the elf
cmdline field and memory map for the guest kernel.
Tracked-On: #8642
Signed-off-by: Victor Sun <victor.sun@intel.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Modified the copyright year range in code, and corrected "int32_tel"
into "Intel" in two "hypervisor/include/debug/profiling.h" and
"hypervisor/include/debug/profiling_internal.h".
Tracked-On: #7559
Signed-off-by: Ziheng Li <ziheng.li@intel.com>
This patch is to eliminate a code scan warning.
p_elf_header32 was given a value when it was declared, but later it was
given the same value again. Just remove the later one.
Tracked-On: #7318
Signed-off-by: Zhou, Wu <wu.zhou@intel.com>
Many of the license and Intel copyright headers include the "All rights
reserved" string. It is not relevant in the context of the BSD-3-Clause
license that the code is released under. This patch removes those strings
throughout the code (hypervisor, devicemodel and misc).
Tracked-On: #7254
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
This is a simply implement for the 32bit and 64bit elf loader.
The loading function first reads the image header, and finds the program
entries that are marked as PT_LOAD, then loads segments from elf file to
guest ram. After that, it finds the bss section in the elf section entries, and
clear the ram area it points to.
Limitations:
1. The e_type of the elf image must be ET_EXEC(executable). Relocatable or
dynamic code is not supported.
2. The loader only copies program segments that has a p_type of
PT_LOAD(loadable segment). Other segments are ignored.
3. The loader doesn’t support Sections that are relocatable
(sh_type is SHT_REL or SHT_RELA)
4. The 64bit elf’s entry address must below 4G.
5. The elf is assumed to be able to put segments to valid guest memory.
Tracked-On: #6323
Signed-off-by: Zhou, Wu <wu.zhou@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch adds a function elf_loader() to load elf image.
It checks the elf header, get its 32/64 bit type, then calls
the corresponding loading routines, which are empty, and
will be realized later.
Tracked-On: #6323
Signed-off-by: Zhou, Wu <wu.zhou@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
