diff options
| author | Laurent Dufour <ldufour@linux.vnet.ibm.com> | 2013-11-15 16:01:51 +0100 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2013-11-19 09:26:28 +0900 |
| commit | 75efb890f9033302d9bf27bace6268850c8a7371 (patch) | |
| tree | 947f4198ee047a19bd7088ef57c0d7112d1127f1 /kexec | |
| parent | 818d45224ad76ee1cff296c7ba14b605b3a2fcc1 (diff) | |
kexec/ppc64: bring up new ppc64le architecture
This patch provides support for the new Power PC litte endian (LE) mode. The
LE mode only differs in the way the instructions and data are stored in memory
thus there is no real need to duplicate the ppc64 code.
However some compilation's options, especially for the purgatory, differ
between little and big endian mode's support. A new "SUBARCH" build variable
is introduced which is currently only used for PPC64 to specify the
endianness.
Another set of changes in this patch is fixing minor endianess issues in the
ppc64 code and fix an alignment issue raised on Power7 little endian mode.
Among these fixes, the check on the kernel binary endianess is removed,
since we can imagine kexecing a LE kernel from a BE environment, as far as
the specified root filesystem and initrd file are containing the right
binaries.
This patch depends on the patch "kexec/ppc64: use common architecture
fs2dt.c file" I sent earlier on the kexec mailing list.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec')
| -rw-r--r-- | kexec/arch/ppc64/kexec-elf-ppc64.c | 6 | ||||
| -rw-r--r-- | kexec/arch/ppc64/kexec-elf-rel-ppc64.c | 3 | ||||
| -rw-r--r-- | kexec/arch/ppc64/kexec-ppc64.c | 3 |
3 files changed, 6 insertions, 6 deletions
diff --git a/kexec/arch/ppc64/kexec-elf-ppc64.c b/kexec/arch/ppc64/kexec-elf-ppc64.c index 3550fc1..7d49d8a 100644 --- a/kexec/arch/ppc64/kexec-elf-ppc64.c +++ b/kexec/arch/ppc64/kexec-elf-ppc64.c @@ -237,13 +237,13 @@ int elf_ppc64_load(int argc, char **argv, const char *buf, off_t len, * entry is before this one */ bb_ptr = (struct bootblock *)(seg_buf); - rsvmap_ptr = (uint64_t *)(seg_buf + bb_ptr->off_mem_rsvmap); + rsvmap_ptr = (uint64_t *)(seg_buf + be32_to_cpu(bb_ptr->off_mem_rsvmap)); while (*rsvmap_ptr || *(rsvmap_ptr+1)) rsvmap_ptr += 2; rsvmap_ptr -= 2; - *rsvmap_ptr = my_dt_offset; + *rsvmap_ptr = cpu_to_be64(my_dt_offset); rsvmap_ptr++; - *rsvmap_ptr = bb_ptr->totalsize; + *rsvmap_ptr = cpu_to_be64((uint64_t)be32_to_cpu(bb_ptr->totalsize)); #endif /* Set kernel */ diff --git a/kexec/arch/ppc64/kexec-elf-rel-ppc64.c b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c index 54d506a..5fc2f87 100644 --- a/kexec/arch/ppc64/kexec-elf-rel-ppc64.c +++ b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c @@ -7,9 +7,6 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) { - if (ehdr->ei_data != ELFDATA2MSB) { - return 0; - } if (ehdr->ei_class != ELFCLASS64) { return 0; } diff --git a/kexec/arch/ppc64/kexec-ppc64.c b/kexec/arch/ppc64/kexec-ppc64.c index 21bd0a8..af9112b 100644 --- a/kexec/arch/ppc64/kexec-ppc64.c +++ b/kexec/arch/ppc64/kexec-ppc64.c @@ -532,6 +532,7 @@ static int get_devtree_details(unsigned long kexec_flags) perror(fname); goto error_openfile; } + rtas_base = be32_to_cpu(rtas_base); memset(fname, 0, sizeof(fname)); strcpy(fname, device_tree); strcat(fname, dentry->d_name); @@ -545,6 +546,7 @@ static int get_devtree_details(unsigned long kexec_flags) goto error_openfile; } closedir(cdir); + rtas_size = be32_to_cpu(rtas_size); /* Add rtas to exclude_range */ exclude_range[i].start = rtas_base; exclude_range[i].end = rtas_base + rtas_size; @@ -798,6 +800,7 @@ const struct arch_map_entry arches[] = { * So pass KEXEC_ARCH_PPC64 here */ { "ppc64", KEXEC_ARCH_PPC64 }, + { "ppc64le", KEXEC_ARCH_PPC64 }, { NULL, 0 }, }; |