Searched hist:"79 c8541924a220964f9f2cbed31eaa9fdb042eab" (Results 1 – 3 of 3) sorted by relevance
| /linux/arch/powerpc/boot/ |
| H A D | of.c | diff 390cbb56a731546edc0f35fbc4c5045676467581 Fri Apr 13 02:46:21 CEST 2007 Paul Mackerras <paulus@samba.org> [POWERPC] Fix detection of loader-supplied initrd on OF platforms
Commit 79c8541924a220964f9f2cbed31eaa9fdb042eab introduced code to move
the initrd if it was in a place where it would get overwritten by the
kernel image. Unfortunately this exposed the fact that the code that
checks whether the values passed in r3 and r4 are intended to indicate
the start address and size of an initrd image was not as thorough as the
kernel's checks. The symptom is that on OF-based platforms, the
bootwrapper can cause an exception which causes the system to drop back
into OF.
Previously it didn't matter so much if the code incorrectly thought that
there was an initrd, since the values for start and size were just passed
through to the kernel. Now the bootwrapper needs to apply the same checks
as the kernel since it is now using the initrd data itself (in the process
of copying it if necessary). This adds the code to do that.
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff 79c8541924a220964f9f2cbed31eaa9fdb042eab Mon Mar 05 04:24:52 CET 2007 David Gibson <david@gibson.dropbear.id.au> [POWERPC] zImage: Cleanup and improve prep_kernel()
This patch rewrites prep_kernel() in the zImage wrapper code to be
clearer and more flexible. Notable changes:
- Handling of the initrd image from prep_kernel() has moved
into a new prep_initrd() function.
- The address of the initrd image is now added as device tree
properties, as the kernel expects.
- We only copy a packaged initrd image to a new location if it
is in danger of being clobbered when the kernel moves to its final
location, instead of always.
- By default we decompress the kernel directly to address 0,
instead of requiring it to relocate itself. Platforms (such as OF)
where doing this could clobber still-live firmware data structures can
override the vmlinux_alloc hook to provide an alternate place to
decompress the kernel.
- We no longer pass lots of information between functions in
global variables.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
|
| H A D | main.c | diff 79c8541924a220964f9f2cbed31eaa9fdb042eab Mon Mar 05 04:24:52 CET 2007 David Gibson <david@gibson.dropbear.id.au> [POWERPC] zImage: Cleanup and improve prep_kernel()
This patch rewrites prep_kernel() in the zImage wrapper code to be
clearer and more flexible. Notable changes:
- Handling of the initrd image from prep_kernel() has moved
into a new prep_initrd() function.
- The address of the initrd image is now added as device tree
properties, as the kernel expects.
- We only copy a packaged initrd image to a new location if it
is in danger of being clobbered when the kernel moves to its final
location, instead of always.
- By default we decompress the kernel directly to address 0,
instead of requiring it to relocate itself. Platforms (such as OF)
where doing this could clobber still-live firmware data structures can
override the vmlinux_alloc hook to provide an alternate place to
decompress the kernel.
- We no longer pass lots of information between functions in
global variables.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
|
| H A D | ops.h | diff 79c8541924a220964f9f2cbed31eaa9fdb042eab Mon Mar 05 04:24:52 CET 2007 David Gibson <david@gibson.dropbear.id.au> [POWERPC] zImage: Cleanup and improve prep_kernel()
This patch rewrites prep_kernel() in the zImage wrapper code to be
clearer and more flexible. Notable changes:
- Handling of the initrd image from prep_kernel() has moved
into a new prep_initrd() function.
- The address of the initrd image is now added as device tree
properties, as the kernel expects.
- We only copy a packaged initrd image to a new location if it
is in danger of being clobbered when the kernel moves to its final
location, instead of always.
- By default we decompress the kernel directly to address 0,
instead of requiring it to relocate itself. Platforms (such as OF)
where doing this could clobber still-live firmware data structures can
override the vmlinux_alloc hook to provide an alternate place to
decompress the kernel.
- We no longer pass lots of information between functions in
global variables.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
|