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authorLiam Merwick <liam.merwick@oracle.com>2019-01-15 12:18:03 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2019-02-05 16:50:16 +0100
commit4366e1db16a3ec7bf24171e5c7619c8ea038e43b (patch)
tree6792ae0a31de33061b9f32b182524e033d91e84d /hw/nios2
parentd455ebc4f827c14a29240db17931e170b6937c6c (diff)
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elf: Add optional function ptr to load_elf() to parse ELF notes
This patch adds an optional function pointer, 'elf_note_fn', to load_elf() which causes load_elf() to additionally parse any ELF program headers of type PT_NOTE and check to see if the ELF Note is of the type specified by the 'translate_opaque' arg. If a matching ELF Note is found then the specfied function pointer is called to process the ELF note. Passing a NULL function pointer results in ELF Notes being skipped. The first consumer of this functionality is the PVHboot support which needs to read the XEN_ELFNOTE_PHYS32_ENTRY ELF Note while loading the uncompressed kernel binary in order to discover the boot entry address for the x86/HVM direct boot ABI. Signed-off-by: Liam Merwick <liam.merwick@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/nios2')
-rw-r--r--hw/nios2/boot.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/hw/nios2/boot.c b/hw/nios2/boot.c
index ed5cb28..5f0ab2f 100644
--- a/hw/nios2/boot.c
+++ b/hw/nios2/boot.c
@@ -146,13 +146,14 @@ void nios2_load_kernel(Nios2CPU *cpu, hwaddr ddr_base,
#endif
/* Boots a kernel elf binary. */
- kernel_size = load_elf(kernel_filename, NULL, NULL,
+ kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
&entry, &low, &high,
big_endian, EM_ALTERA_NIOS2, 0, 0);
base32 = entry;
if (base32 == 0xc0000000) {
- kernel_size = load_elf(kernel_filename, translate_kernel_address,
- NULL, &entry, NULL, NULL,
+ kernel_size = load_elf(kernel_filename, NULL,
+ translate_kernel_address, NULL,
+ &entry, NULL, NULL,
big_endian, EM_ALTERA_NIOS2, 0, 0);
}