gwj / at91sam9263 · Commits

Commit 713c45faf81f9a68ca589ce37d7e1dee6c2127a2

Authored by bellard
1 parent 0b9dc5e4

initrd support (Blue Swirl) 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1306 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 24 additions and 1 deletions
hw/sun4m.c
  View file @713c45f
... ... @@ -25,6 +25,7 @@
25 25 #include "m48t08.h"
26 26  
27 27 #define KERNEL_LOAD_ADDR 0x00004000
  28 +#define INITRD_LOAD_ADDR 0x00800000
28 29 #define PROM_ADDR 0xffd00000
29 30 #define PROM_FILENAMEB "proll.bin"
30 31 #define PROM_FILENAMEE "proll.elf"
... ... @@ -135,7 +136,8 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
135 136 {
136 137 char buf[1024];
137 138 int ret, linux_boot;
138   - unsigned long vram_size = 0x100000, prom_offset;
  139 + unsigned int i;
  140 + unsigned long vram_size = 0x100000, prom_offset, initrd_size;
139 141  
140 142 linux_boot = (kernel_filename != NULL);
141 143  
... ... @@ -180,5 +182,26 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
180 182 kernel_filename);
181 183 exit(1);
182 184 }
  185 +
  186 + /* load initrd */
  187 + initrd_size = 0;
  188 + if (initrd_filename) {
  189 + initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR);
  190 + if (initrd_size < 0) {
  191 + fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
  192 + initrd_filename);
  193 + exit(1);
  194 + }
  195 + }
  196 + if (initrd_size > 0) {
  197 + for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
  198 + if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i)
  199 + == 0x48647253) { // HdrS
  200 + stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
  201 + stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size);
  202 + break;
  203 + }
  204 + }
  205 + }
183 206 }
184 207 }
... ...