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ETRAX-FS: Add support for passing kernel command lines

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5516 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
edgar_igl 2008-10-22 19:58:32 +00:00
parent 8ab944444a
commit f5a5cca35b
1 changed files with 15 additions and 2 deletions
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17
hw/etraxfs.c
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@ -119,11 +119,13 @@ void bareetraxfs_init (ram_addr_t ram_size, int vga_ram_size,
}
if (kernel_filename) {
uint64_t entry;
uint64_t entry, high;
int kcmdline_len;
/* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
devboard SDK. */
kernel_size = load_elf(kernel_filename, -0x80000000LL,
&entry, NULL, NULL);
&entry, NULL, &high);
bootstrap_pc = entry;
if (kernel_size < 0) {
/* Takes a kimage from the axis devboard SDK. */
@ -132,6 +134,17 @@ void bareetraxfs_init (ram_addr_t ram_size, int vga_ram_size,
env->regs[9] = 0x40004000 + kernel_size;
}
env->regs[8] = 0x56902387; /* RAM init magic. */
if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
if (kcmdline_len > 256) {
fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
exit(1);
}
pstrcpy_targphys(high, 256, kernel_cmdline);
/* Let the kernel know we are modifying the cmdline. */
env->regs[10] = 0x87109563;
env->regs[11] = high;
}
}
env->pc = bootstrap_pc;