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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/arm
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/arm')
-rw-r--r--hw/arm/armv7m.c3
-rw-r--r--hw/arm/boot.c2
2 files changed, 3 insertions, 2 deletions
diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
index adae11e..c4b2a9a 100644
--- a/hw/arm/armv7m.c
+++ b/hw/arm/armv7m.c
@@ -310,7 +310,8 @@ void armv7m_load_kernel(ARMCPU *cpu, const char *kernel_filename, int mem_size)
as = cpu_get_address_space(cs, asidx);
if (kernel_filename) {
- image_size = load_elf_as(kernel_filename, NULL, NULL, &entry, &lowaddr,
+ image_size = load_elf_as(kernel_filename, NULL, NULL, NULL,
+ &entry, &lowaddr,
NULL, big_endian, EM_ARM, 1, 0, as);
if (image_size < 0) {
image_size = load_image_targphys_as(kernel_filename, 0,
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 05762d0..be25902 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -881,7 +881,7 @@ static int64_t arm_load_elf(struct arm_boot_info *info, uint64_t *pentry,
}
}
- ret = load_elf_as(info->kernel_filename, NULL, NULL,
+ ret = load_elf_as(info->kernel_filename, NULL, NULL, NULL,
pentry, lowaddr, highaddr, big_endian, elf_machine,
1, data_swab, as);
if (ret <= 0) {