litmus-rt.git/arch/ppc64/boot, branch v2.6.33-rc6

powerpc: Move ppc64 boot wrapper code over to arch/powerpc

2005-11-16T02:52:21+00:00

This also extends the code to handle 32-bit ELF vmlinux files as well
as 64-bit ones.  This is sufficient for booting on new-world 32-bit
powermacs (i.e. all recent machines).

Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: fix compile warnings

2005-11-10T00:26:01+00:00

Fix a few compile warnings

arch/ppc64/boot/addRamDisk.c:166: warning: int format, long unsigned int arg (arg 2)
arch/ppc64/boot/addRamDisk.c:170: warning: int format, long unsigned int arg (arg 2)
arch/ppc64/boot/addRamDisk.c:265: warning: unsigned int format, long unsigned int arg (arg 2)
arch/ppc64/boot/addRamDisk.c:302: warning: unsigned int format, long unsigned int arg (arg 3)

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: remove sysmap from required filenames

2005-11-10T00:25:52+00:00

A stripped vmlinux does not contain enough symbols to recreate the
System.map.  The System.map file is only used to determine the end of
the runtime memory size.  This is the same value (rounded up to
PAGE_SIZE) as ->memsiz in the ELF program header.

Also, the target vmlinux.initrd doesnt work in 2.6.14:

  arch/ppc64/boot/addRamDisk arch/ppc64/boot/ramdisk.image.gz vmlinux.strip arch/ppc64/boot/vmlinux.initrd
  Name of vmlinux output file missing.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: remove argv usage

2005-11-10T00:25:32+00:00

Use a local variable for the input filenames.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: remove local initializers

2005-11-10T00:25:19+00:00

Remove initialization of local variables.
They get all values assigned before use.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[PATCH] ppc64: Fix zImage boot

2005-11-07T15:53:23+00:00

The zImage wrapper has a bug where it doesn't claim() the memory for the
kernel properly, it forgets to take into account the offset between the ELF
header and the kernel itself.  This results on some machines, like G5s,
into a kernel that crashes at boot when clearing the BSS.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ppc64: change name of target file during make install

2005-10-29T05:20:27+00:00

'make install' creates a /boot/zImage[.vmode] file when the defconfig is used.

It uses the second arg as file content, which is the vmlinux, and the 5th
arg as file name, which is the BOOTIMAGE name.

A comment in an earlier patch to install.sh states that yaboot can not load
a zImage+initrd combo.  This was true in kernel 2.6.5 because it did use
bi_recs to pass the initrd info.  But this concept was always broken.
Register r3 holds the initrd address and r4 holds the initrd size.  This
works with all kernel versions.  The current code in main.c leaves r3 and
r4 alone, so the kernel should be able to see and use the memory range with
the initrd content.

If one wants to rerun mkinitrd, it is currently hard to get the uname -r
value for the installed zImage.  Without this info, mkinitrd can not know
what modules to use.  This would be fixable by including the /proc/version
output of the new kernel.  But it is simpler to just use the plain vmlinux.

So all this patch does is to write to /boot/vmlinux instead to /boot/zImage

Signed-off-by: Olaf Hering 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: print firmware provided stackpointer

2005-10-29T05:11:35+00:00

Show firmware provided stackpointer during boot.

This helps to find the "taboo" areas on the various boards.  claim tends to
fail for these memory areas, but some jokers return success anyway.

Use %p to print the load address, its a pointer.

Signed-off-by: Olaf Hering 
Cc: Benjamin Herrenschmidt 
Cc: Anton Blanchard 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: proof that reloc works

2005-10-29T05:11:00+00:00

To prove that the relocation works, move the crt0.o away from the beginning.
Move linker options from command line into linker script.  rename entry point
because '_start' is referenced in printf output.

Signed-off-by: Olaf Hering 
Cc: Benjamin Herrenschmidt 
Cc: Anton Blanchard 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[PATCH] ppc64 boot: make the zImage relocateable

2005-10-29T05:10:12+00:00

Make the zImage relocateable.  So yaboot could just load and run any ELF
binary, without worrying about its load address.

Signed-off-by: Olaf Hering 
Cc: Benjamin Herrenschmidt 
Cc: Anton Blanchard 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras