[Qemu-devel] [PATCH] Increase maximum kernel size allowed by -kernel and -initrd

[Qemu-devel] [PATCH] Increase maximum kernel size allowed by -kernel and -initrd

[Ed Swierk]

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qemu fails to boot recent releases of Fedora Core with the
-kernel/-initrd options, since the kernel is large enough to overrun
the space allocated to it by qemu's built-in bootloader.

The attached patch simply moves the base address of the initrd to a
higher location, which allows sufficient space for a larger kernel.

Ideally qemu would figure out where to load the initrd based on the
size of the kernel, but I hope this patch is simple enough to solve
the problem for now.

--Ed

[-- Attachment #2: qemu-initrd.patch --]
[-- Type: text/x-patch, Size: 450 bytes --]

diff -burN qemu-0.7.2.orig/hw/pc.c qemu-0.7.2/hw/pc.c
--- qemu-0.7.2.orig/hw/pc.c	2005-09-04 17:11:31.000000000 +0000
+++ qemu-0.7.2/hw/pc.c	2005-11-22 20:39:29.000000000 +0000
@@ -32,7 +32,7 @@
 #define LINUX_BOOT_FILENAME "linux_boot.bin"
 
 #define KERNEL_LOAD_ADDR     0x00100000
-#define INITRD_LOAD_ADDR     0x00400000
+#define INITRD_LOAD_ADDR     0x00600000
 #define KERNEL_PARAMS_ADDR   0x00090000
 #define KERNEL_CMDLINE_ADDR  0x00099000