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Replace yaboot_startup() by newworld_boot() which implements generic

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CHRP boot method.
It finds the CHRP bootscript using the file attribute 'tbxi' and 
the blessed directory.

This method allows to boot easily Fedora (the bitness detection is done
by the script and yaboot is called with the according yaboot.conf) but
openSUSE is broken (you have to use "boot cd:,\suseboot\yaboot")
Debian works well (as usual...).
The openSUSE needs the missing forth words: "load" and "go".
The MacOS bootloader (BootX) is also loaded automatically but forth 
script is too complex to be executed correctly.

Signed-off-by: Laurent Vivier <Laurent@vivier.eu>


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@571 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Laurent Vivier
2009-08-29 15:43:00 +00:00
parent 1ced7923e7
commit 2db781a446
2 changed files with 16 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
arch/ppc/qemu/main.c
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@@ -36,7 +36,7 @@
#endif
#define CHRP_DPRINTF(fmt, args...) SUBSYS_DPRINTF("CHRP", fmt, ##args)
#define ELF_DPRINTF(fmt, args...) SUBSYS_DPRINTF("ELF", fmt, ##args)
#define YABOOT_DPRINTF(fmt, args...) SUBSYS_DPRINTF("YABOOT", fmt, ##args)
#define NEWWORLD_DPRINTF(fmt, args...) SUBSYS_DPRINTF("NEWWORLD", fmt, ##args)
static void
transfer_control_to_elf( ulong elf_entry )
@@ -236,7 +236,7 @@ static void
try_chrp_script(const char *of_path, const char *param, const char *script_path)
{
int fd, len, tag, taglen, script, scriptlen, entity;
char tagbuf[256], bootscript[256], c;
char tagbuf[256], bootscript[2048], c;
char *device, *filename, *directory;
int partition;
@@ -244,6 +244,8 @@ try_chrp_script(const char *of_path, const char *param, const char *script_path)
partition = get_partition(of_path);
filename = get_filename(of_path, &directory);
CHRP_DPRINTF("device %s partition %d filename %s\n", device, partition, filename);
/* read boot script */
if (partition == -1)
@@ -378,13 +380,10 @@ oldworld_boot( void )
}
static void
yaboot_startup( void )
newworld_boot( void )
{
static const char * const chrp_paths[] = { "ppc\\bootinfo.txt", "System\\Library\\CoreServices\\BootX" };
static const char * const elf_paths[] = { "hd:2,\\ofclient", "hd:2,\\yaboot" };
static const char * const args[] = { "", "conf=hd:2,\\yaboot.conf" };
static const char * const chrp_path = "\\\\:tbxi" ;
char *path = pop_fstr_copy(), *param;
int i;
param = strchr(path, ' ');
if (param) {
@@ -393,7 +392,7 @@ yaboot_startup( void )
}
if (!path) {
YABOOT_DPRINTF("Entering boot, no path\n");
NEWWORLD_DPRINTF("Entering boot, no path\n");
push_str("boot-device");
push_str("/options");
fword("(find-dev)");
@@ -415,9 +414,7 @@ yaboot_startup( void )
param = pop_fstr_copy();
}
try_path(path, param);
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
try_chrp_script(path, param, chrp_path);
} else {
uint16_t boot_device = fw_cfg_read_i16(FW_CFG_BOOT_DEVICE);
switch (boot_device) {
@@ -429,19 +426,12 @@ yaboot_startup( void )
path = strdup("cd:");
break;
}
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
try_chrp_script(path, param, chrp_path);
}
} else {
YABOOT_DPRINTF("Entering boot, path %s\n", path);
NEWWORLD_DPRINTF("Entering boot, path %s\n", path);
try_path(path, param);
for( i=0; i < sizeof(chrp_paths) / sizeof(chrp_paths[0]); i++ ) {
try_chrp_script(path, param, chrp_paths[i]);
}
}
for( i=0; i < sizeof(elf_paths) / sizeof(elf_paths[0]); i++ ) {
try_path(elf_paths[i], args[i]);
try_chrp_script(path, param, chrp_path);
}
printk("*** Boot failure! No secondary bootloader specified ***\n");
}
@@ -487,5 +477,5 @@ boot( void )
if (boot_device == 'c') {
oldworld_boot();
}
yaboot_startup();
newworld_boot();
}