From 4366e1db16a3ec7bf24171e5c7619c8ea038e43b Mon Sep 17 00:00:00 2001 From: Liam Merwick Date: Tue, 15 Jan 2019 12:18:03 +0000 Subject: 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 Signed-off-by: Paolo Bonzini --- hw/nios2/boot.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'hw/nios2/boot.c') diff --git a/hw/nios2/boot.c b/hw/nios2/boot.c index ed5cb28e94..5f0ab2fbb9 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); } -- cgit v1.2.3-55-g7522