Hamish Guthrie
16 years ago
parent
e8859760d6
commit
38b643525c
@ -0,0 +1,187 @@ |
|||||||
|
Hack to load PS3 legacy kernels (2.6.16 and fc7 installer) with the 2.6.23
|
||||||
|
mainline linux kernel.
|
||||||
|
|
||||||
|
---
|
||||||
|
kexec/arch/ppc64/fs2dt.c | 47 +++++++++++++++++++++++++++++++++++++
|
||||||
|
kexec/arch/ppc64/kexec-elf-ppc64.c | 44 ++++++++++++++++++++++++++++++++++
|
||||||
|
kexec/arch/ppc64/kexec-ppc64.c | 5 +++
|
||||||
|
kexec/arch/ppc64/kexec-ppc64.h | 2 +
|
||||||
|
4 files changed, 98 insertions(+)
|
||||||
|
|
||||||
|
--- a/kexec/arch/ppc64/fs2dt.c
|
||||||
|
+++ b/kexec/arch/ppc64/fs2dt.c
|
||||||
|
@@ -262,6 +262,33 @@ static void putprops(char *fn, struct di
|
||||||
|
die("unrecoverable error: could not read \"%s\": %s\n",
|
||||||
|
pathname, strerror(errno));
|
||||||
|
|
||||||
|
+ /* ps3 legacy - Add 'PS3PF' to compatible */
|
||||||
|
+
|
||||||
|
+ if (ps3_legacy && !strcmp(dp->d_name, "compatible")) {
|
||||||
|
+ static const char s[] = "PS3PF";
|
||||||
|
+ char *const tmp = (char *)dt + len;
|
||||||
|
+
|
||||||
|
+ memcpy(tmp, s, sizeof(s));
|
||||||
|
+ len += sizeof(s);
|
||||||
|
+ *dt_len = len;
|
||||||
|
+
|
||||||
|
+ fprintf(stdout, "ps3 legacy: Changed dt entry "
|
||||||
|
+ "/compatible: <%s> -> <%s %s>\n",
|
||||||
|
+ (char *)dt, (char *)dt, tmp);
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ /* ps3 legacy - force memory.reg to 224 MiB */
|
||||||
|
+
|
||||||
|
+ if (ps3_legacy && !strcmp(dp->d_name, "reg") && len == 16) {
|
||||||
|
+ uint64_t tmp = *((uint64_t *)dt + 1);
|
||||||
|
+
|
||||||
|
+ *((uint64_t *)dt + 1) = 0xe000000ULL;
|
||||||
|
+ fprintf(stdout, "ps3 legacy: Changed dt entry "
|
||||||
|
+ "/memory/reg: <%llx> -> <%llx>\n",
|
||||||
|
+ (unsigned long long)tmp,
|
||||||
|
+ *((unsigned long long *)dt + 1));
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
checkprop(fn, dt, len);
|
||||||
|
|
||||||
|
dt += (len + 3)/4;
|
||||||
|
@@ -360,6 +387,26 @@ static void putnode(void)
|
||||||
|
reserve(initrd_base, initrd_size);
|
||||||
|
}
|
||||||
|
|
||||||
|
+ /* ps3 legacy - add entry linux,platform <801> */
|
||||||
|
+
|
||||||
|
+ if (ps3_legacy && !strcmp(basename,"/chosen/")) {
|
||||||
|
+ int len = 4;
|
||||||
|
+ static const uint32_t data = 0x801UL;
|
||||||
|
+
|
||||||
|
+ *dt++ = 3;
|
||||||
|
+ *dt++ = len;
|
||||||
|
+ *dt++ = propnum("linux,platform");
|
||||||
|
+
|
||||||
|
+ if ((len >= 8) && ((unsigned long)dt & 0x4))
|
||||||
|
+ dt++;
|
||||||
|
+
|
||||||
|
+ memcpy(dt,&data,len);
|
||||||
|
+ dt += (len + 3)/4;
|
||||||
|
+
|
||||||
|
+ fprintf(stdout, "ps3 legacy: Added dt entry "
|
||||||
|
+ "/chosen/linux,platform = <801>\n");
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
/* Add cmdline to the second kernel. Check to see if the new
|
||||||
|
* cmdline has a root=. If not, use the old root= cmdline. */
|
||||||
|
if (!strcmp(basename,"/chosen/")) {
|
||||||
|
--- a/kexec/arch/ppc64/kexec-elf-ppc64.c
|
||||||
|
+++ b/kexec/arch/ppc64/kexec-elf-ppc64.c
|
||||||
|
@@ -45,6 +45,7 @@
|
||||||
|
uint64_t initrd_base, initrd_size;
|
||||||
|
unsigned char reuse_initrd = 0;
|
||||||
|
const char *ramdisk;
|
||||||
|
+int ps3_legacy = -1; /* default to probe */
|
||||||
|
|
||||||
|
int create_flatten_tree(struct kexec_info *, unsigned char **, unsigned long *,
|
||||||
|
char *);
|
||||||
|
@@ -76,6 +77,33 @@ void arch_reuse_initrd(void)
|
||||||
|
reuse_initrd = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
+/**
|
||||||
|
+ * ps3_legacy_probe - Probe kernel version.
|
||||||
|
+ */
|
||||||
|
+
|
||||||
|
+static int ps3_legacy_probe(const char *p, off_t len)
|
||||||
|
+{
|
||||||
|
+ static const char d1[] = "linux,platform"; /* legacy 2.6.16 */
|
||||||
|
+ static const char d2[] = "2.6.21-1.3194.fc7"; /* fedora 7 installer */
|
||||||
|
+ const char *const end = p + len - sizeof(d2);
|
||||||
|
+
|
||||||
|
+ while(p < end) {
|
||||||
|
+ if (p[0] == d1[0] && !memcmp(p, d1, sizeof(d1) - 1)) {
|
||||||
|
+ fprintf(stdout, "ps3 legacy: Legacy kernel found: "
|
||||||
|
+ "'%s'\n", d1);
|
||||||
|
+ break;
|
||||||
|
+ }
|
||||||
|
+ if (p[0] == d2[0] && !memcmp(p, d2, sizeof(d2) - 1)) {
|
||||||
|
+ fprintf(stdout, "ps3 legacy: Legacy kernel found: "
|
||||||
|
+ "'%s'\n", d2);
|
||||||
|
+ break;
|
||||||
|
+ }
|
||||||
|
+ p++;
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ return (p != end);
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
int elf_ppc64_load(int argc, char **argv, const char *buf, off_t len,
|
||||||
|
struct kexec_info *info)
|
||||||
|
{
|
||||||
|
@@ -102,6 +130,8 @@ int elf_ppc64_load(int argc, char **argv
|
||||||
|
#define OPT_RAMDISK (OPT_ARCH_MAX+1)
|
||||||
|
#define OPT_DEVICETREEBLOB (OPT_ARCH_MAX+2)
|
||||||
|
#define OPT_ARGS_IGNORE (OPT_ARCH_MAX+3)
|
||||||
|
+#define OPT_PS3_LEGACY (OPT_ARCH_MAX+4)
|
||||||
|
+#define OPT_PS3_LEGACY_NO (OPT_ARCH_MAX+5)
|
||||||
|
|
||||||
|
static const struct option options[] = {
|
||||||
|
KEXEC_ARCH_OPTIONS
|
||||||
|
@@ -111,6 +141,8 @@ int elf_ppc64_load(int argc, char **argv
|
||||||
|
{ "initrd", 1, NULL, OPT_RAMDISK },
|
||||||
|
{ "devicetreeblob", 1, NULL, OPT_DEVICETREEBLOB },
|
||||||
|
{ "args-linux", 0, NULL, OPT_ARGS_IGNORE },
|
||||||
|
+ { "ps3-legacy", 0, NULL, OPT_PS3_LEGACY },
|
||||||
|
+ { "ps3-no-legacy", 0, NULL, OPT_PS3_LEGACY_NO },
|
||||||
|
{ 0, 0, NULL, 0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
@@ -146,9 +178,18 @@ int elf_ppc64_load(int argc, char **argv
|
||||||
|
break;
|
||||||
|
case OPT_ARGS_IGNORE:
|
||||||
|
break;
|
||||||
|
+ case OPT_PS3_LEGACY:
|
||||||
|
+ ps3_legacy = 1;
|
||||||
|
+ break;
|
||||||
|
+ case OPT_PS3_LEGACY_NO:
|
||||||
|
+ ps3_legacy = 0;
|
||||||
|
+ break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
+ if (ps3_legacy == -1)
|
||||||
|
+ ps3_legacy = ps3_legacy_probe(buf, len);
|
||||||
|
+
|
||||||
|
cmdline_len = 0;
|
||||||
|
if (cmdline)
|
||||||
|
cmdline_len = strlen(cmdline) + 1;
|
||||||
|
@@ -158,6 +199,9 @@ int elf_ppc64_load(int argc, char **argv
|
||||||
|
if (ramdisk && reuse_initrd)
|
||||||
|
die("Can't specify --ramdisk or --initrd with --reuseinitrd\n");
|
||||||
|
|
||||||
|
+ if (ps3_legacy && devicetreeblob)
|
||||||
|
+ die("Can't specify --devicetreeblob with --ps3-legacy\n");
|
||||||
|
+
|
||||||
|
setup_memory_ranges(info->kexec_flags);
|
||||||
|
|
||||||
|
/* Need to append some command line parameters internally in case of
|
||||||
|
--- a/kexec/arch/ppc64/kexec-ppc64.c
|
||||||
|
+++ b/kexec/arch/ppc64/kexec-ppc64.c
|
||||||
|
@@ -650,6 +650,11 @@ void arch_usage(void)
|
||||||
|
fprintf(stderr, " --initrd=<filename> same as --ramdisk.\n");
|
||||||
|
fprintf(stderr, " --devicetreeblob=<filename> Specify device tree blob file.\n");
|
||||||
|
fprintf(stderr, " --elf64-core-headers Prepare core headers in ELF64 format\n");
|
||||||
|
+ fprintf(stderr, " --ps3-legacy Make fixups needed to boot PS3 legacy kernels.\n");
|
||||||
|
+ fprintf(stderr, " The default is to probe the kernel type.\n");
|
||||||
|
+ fprintf(stderr, " --ps3-no-legacy Do not make fixups needed to boot PS3 legacy\n");
|
||||||
|
+ fprintf(stderr, " kernels. The default is to probe the kernel\n");
|
||||||
|
+ fprintf(stderr, " type.\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
struct arch_options_t arch_options = {
|
||||||
|
--- a/kexec/arch/ppc64/kexec-ppc64.h
|
||||||
|
+++ b/kexec/arch/ppc64/kexec-ppc64.h
|
||||||
|
@@ -41,4 +41,6 @@ typedef struct mem_rgns {
|
||||||
|
|
||||||
|
extern mem_rgns_t usablemem_rgns;
|
||||||
|
|
||||||
|
+extern int ps3_legacy;
|
||||||
|
+
|
||||||
|
#endif /* KEXEC_PPC64_H */
|
||||||
Loading…
Reference in new issue