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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/s390x
parentd455ebc4f827c14a29240db17931e170b6937c6c (diff)
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/s390x')
-rw-r--r--hw/s390x/ipl.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 21f64ad26a..896888bf8f 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -131,7 +131,8 @@ static void s390_ipl_realize(DeviceState *dev, Error **errp)
goto error;
}
- bios_size = load_elf(bios_filename, bios_translate_addr, &fwbase,
+ bios_size = load_elf(bios_filename, NULL,
+ bios_translate_addr, &fwbase,
&ipl->bios_start_addr, NULL, NULL, 1,
EM_S390, 0, 0);
if (bios_size > 0) {
@@ -155,7 +156,8 @@ static void s390_ipl_realize(DeviceState *dev, Error **errp)
}
if (ipl->kernel) {
- kernel_size = load_elf(ipl->kernel, NULL, NULL, &pentry, NULL,
+ kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL,
+ &pentry, NULL,
NULL, 1, EM_S390, 0, 0);
if (kernel_size < 0) {
kernel_size = load_image_targphys(ipl->kernel, 0, ram_size);
@@ -436,7 +438,8 @@ static int load_netboot_image(Error **errp)
goto unref_mr;
}
- img_size = load_elf_ram(netboot_filename, NULL, NULL, &ipl->start_addr,
+ img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL,
+ &ipl->start_addr,
NULL, NULL, 1, EM_S390, 0, 0, NULL, false);
if (img_size < 0) {