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[Qemu-devel] [6437] target-ppc: always load kernel to KERNEL_LOAD_ADDR
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [6437] target-ppc: always load kernel to KERNEL_LOAD_ADDR |
Date: |
Mon, 26 Jan 2009 10:22:16 +0000 |
Revision: 6437
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6437
Author: aurel32
Date: 2009-01-26 10:22:15 +0000 (Mon, 26 Jan 2009)
Log Message:
-----------
target-ppc: always load kernel to KERNEL_LOAD_ADDR
Linux changed its physical address location in the elf header from
0xc0000000 to 0 on 2.6.25, causing later kernels to fail booting
with the -kernel option.
This patch assures that the lowest segment in the elf binary is loaded
to KERNEL_LOAD_ADDR, which is where the firmware expects it.
Signed-off-by: Alexander Graf <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
Modified Paths:
--------------
trunk/hw/ppc_oldworld.c
Modified: trunk/hw/ppc_oldworld.c
===================================================================
--- trunk/hw/ppc_oldworld.c 2009-01-25 10:56:51 UTC (rev 6436)
+++ trunk/hw/ppc_oldworld.c 2009-01-26 10:22:15 UTC (rev 6437)
@@ -207,10 +207,16 @@
}
if (linux_boot) {
+ uint64_t lowaddr = 0;
kernel_base = KERNEL_LOAD_ADDR;
- /* now we can load the kernel */
- kernel_size = load_elf(kernel_filename, kernel_base - 0xc0000000ULL,
- NULL, NULL, NULL);
+ /* Now we can load the kernel. The first step tries to load the kernel
+ supposing PhysAddr = 0x00000000. If that was wrong the kernel is
+ loaded again, the new PhysAddr being computed from lowaddr. */
+ kernel_size = load_elf(kernel_filename, kernel_base, NULL, &lowaddr,
NULL);
+ if (kernel_size > 0 && lowaddr != KERNEL_LOAD_ADDR) {
+ kernel_size = load_elf(kernel_filename, (2 * kernel_base) -
lowaddr,
+ NULL, 0, NULL);
+ }
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, kernel_base,
ram_size - kernel_base);
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