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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/lm32
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/lm32')
-rw-r--r--hw/lm32/lm32_boards.c6
-rw-r--r--hw/lm32/milkymist.c3
2 files changed, 6 insertions, 3 deletions
diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
index fd8eccc..05157f8 100644
--- a/hw/lm32/lm32_boards.c
+++ b/hw/lm32/lm32_boards.c
@@ -138,7 +138,8 @@ static void lm32_evr_init(MachineState *machine)
uint64_t entry;
int kernel_size;
- kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
+ kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
+ &entry, NULL, NULL,
1, EM_LATTICEMICO32, 0, 0);
reset_info->bootstrap_pc = entry;
@@ -231,7 +232,8 @@ static void lm32_uclinux_init(MachineState *machine)
uint64_t entry;
int kernel_size;
- kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
+ kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
+ &entry, NULL, NULL,
1, EM_LATTICEMICO32, 0, 0);
reset_info->bootstrap_pc = entry;
diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
index 26a2398..b080cf1 100644
--- a/hw/lm32/milkymist.c
+++ b/hw/lm32/milkymist.c
@@ -176,7 +176,8 @@ milkymist_init(MachineState *machine)
uint64_t entry;
/* Boots a kernel elf binary. */
- kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
+ kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
+ &entry, NULL, NULL,
1, EM_LATTICEMICO32, 0, 0);
reset_info->bootstrap_pc = entry;