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load memory with images directly. emulation runs correctly now.

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This commit is contained in:
Mariano Alvira 2009-04-11 09:08:38 -04:00
parent 7881c8945e
commit 2ea5f005ee
2 changed files with 20 additions and 20 deletions
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7
qemu/README.qemu.mc1322x
View file

@ -8,12 +8,13 @@ Build qemu
Run with
arm-softmmu/qemu-system-arm -S -M mc1322x -nographic \
-pflash ~/mc1322x-tests/tests/blink-red.bin \
-mtdblock ~/mcmc1322x-tests/doc/mc13224v.img
foo
which will load mc13224v.img at 0x00000000 and blink-red.bin at
which will load rom.img at 0x00000000 and ram.img at
0x00400000 --- execution will start at 0x00400000 (type c).
I'll be adding command line options for those images soon.
Debug with gdb:
Build gdb for an arm target:

33
qemu/hw/mc1322x.c
View file

@ -13,6 +13,8 @@
#include "flash.h"
#include "block.h"
#include <stdio.h>
static const int sector_len = 128 * 1024;
/* Initialize a MC1322x (ARM7) */
@ -20,6 +22,8 @@ struct mc1322x_state_s *mc1322x_init(void)
{
struct mc1322x_state_s *s;
int index;
FILE *ram, *rom;
ram_addr_t ramoff, romoff;
s = (struct mc1322x_state_s *) qemu_mallocz(sizeof(struct mc1322x_state_s));
@ -31,29 +35,24 @@ struct mc1322x_state_s *mc1322x_init(void)
register_savevm("cpu", 0, ARM_CPU_SAVE_VERSION, cpu_save, cpu_load,
s->env);
/* SDRAM & Internal Memory Storage */
/* should probably allocate memory for all the cpu registers... I think that is where the emulation might be bombing */
/* should probably allocate memory for all the cpu registers also */
romoff = qemu_ram_alloc(MC1322X_ROMSIZE);
cpu_register_physical_memory(MC1322X_ROMBASE, MC1322X_ROMSIZE,
qemu_ram_alloc(MC1322X_ROMSIZE) | IO_MEM_RAM);
romoff | IO_MEM_RAM);
ramoff = qemu_ram_alloc(MC1322X_RAMSIZE);
cpu_register_physical_memory(MC1322X_RAMBASE, MC1322X_RAMSIZE,
qemu_ram_alloc(MC1322X_RAMSIZE) | IO_MEM_RAM);
ramoff | IO_MEM_RAM);
/* shouldn't load the images in this way */
/* should make a commandline arg for this and just load the file to ram */
/* directly. */
/* this may be possible with snapshots or something...*/
/* need to add a way to specify these images from the command line */
index = drive_get_index(IF_MTD, 0, 0);
if(0<bdrv_read(drives_table[index].bdrv,0,phys_ram_base+MC1322X_ROMBASE,MC1322X_ROMSIZE/512)) {
fprintf(stderr, "qemu: Error registering rom memory.\n");
if(rom = fopen("rom.img", "r")) {
fread(phys_ram_base,1,MC1322X_ROMSIZE,rom);
}
index = drive_get_index(IF_PFLASH, 0, 0);
if (!pflash_cfi01_register(0x00400000, qemu_ram_alloc(MC1322X_RAMSIZE),
drives_table[index].bdrv, sector_len, MC1322X_RAMSIZE / sector_len,
2, 0, 0, 0, 0)) {
fprintf(stderr, "qemu: Error registering flash memory.\n");
exit(1);
if(ram = fopen("ram.img", "r")) {
fprintf(stderr, "loading ram image\n");
fread(phys_ram_base+ramoff,1,MC1322X_RAMSIZE,ram);
}
s->env->regs[15] = 0x00400000;