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[Qemu-devel] [PATCH] hw/gumstix.c: Directly load a kernel
From: |
Thorsten Zitterell |
Subject: |
[Qemu-devel] [PATCH] hw/gumstix.c: Directly load a kernel |
Date: |
Mon, 04 May 2009 17:44:55 +0200 |
User-agent: |
Thunderbird 2.0.0.21 (X11/20090318) |
Previously, a Gumstix connex can only be booted if a flash image is provided.
This patch allows to
* specify a flash image with -pflash (as before)
* and/or provide a raw kernel image loaded to 0xa0000000 or elf kernel image
--
Thorsten
diff --git a/hw/gumstix.c b/hw/gumstix.c
index cce86fb..af69145 100644
--- a/hw/gumstix.c
+++ b/hw/gumstix.c
@@ -48,6 +48,8 @@ static void connex_init(ram_addr_t ram_size, int vga_ram_size,
{
struct pxa2xx_state_s *cpu;
int index;
+ uint64_t entry;
+ int kernel_size;
uint32_t connex_rom = 0x01000000;
uint32_t connex_ram = 0x04000000;
@@ -55,20 +57,37 @@ static void connex_init(ram_addr_t ram_size, int
vga_ram_size,
cpu = pxa255_init(connex_ram);
index = drive_get_index(IF_PFLASH, 0, 0);
- if (index == -1) {
- fprintf(stderr, "A flash image must be given with the "
- "'pflash' parameter\n");
+
+ if ((index == -1) && (kernel_filename == NULL)) {
+ fprintf(stderr, "Give a flash image with the 'pflash' parameter\n");
+ fprintf(stderr, "or/and a kernel image with the 'kernel' parameter\n");
exit(1);
}
- if (!pflash_cfi01_register(0x00000000, qemu_ram_alloc(connex_rom),
+ if (index != -1) {
+ if (!pflash_cfi01_register(0x00000000, qemu_ram_alloc(connex_rom),
drives_table[index].bdrv, sector_len, connex_rom / sector_len,
- 2, 0, 0, 0, 0)) {
- fprintf(stderr, "qemu: Error registering flash memory.\n");
- exit(1);
+ 2, 0, 0, 0, 0)) {
+ fprintf(stderr, "qemu: Error registering flash memory.\n");
+ exit(1);
+ }
+ cpu->env->regs[15] = 0x00000000;
}
- cpu->env->regs[15] = 0x00000000;
+ if (kernel_filename) {
+ kernel_size = load_elf(kernel_filename, 0, &entry, NULL, NULL);
+ if (kernel_size < 0) {
+ kernel_size = load_image_targphys(kernel_filename,
+ PXA2XX_SDRAM_BASE, connex_ram);
+ cpu->env->regs[15] = PXA2XX_SDRAM_BASE;
+ } else {
+ cpu->env->regs[15] = entry;
+ }
+ if (kernel_size < 0) {
+ fprintf(stderr, "qemu: Error loading kernel.\n");
+ exit(1);
+ }
+ }
/* Interrupt line of NIC is connected to GPIO line 36 */
smc91c111_init(&nd_table[0], 0x04000300,
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