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Allow bootdevice change from the monitor

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(Gildas Le Nadan)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4333 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-05-04 20:11:34 +00:00
parent 4001a81e8e
commit 0ecdffbb60
5 changed files with 68 additions and 0 deletions
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29
hw/pc.c
View file

@ -189,6 +189,33 @@ static int boot_device2nibble(char boot_device)
return 0;
}
/* copy/pasted from cmos_init, should be made a general function
and used there as well */
int pc_boot_set(const char *boot_device)
{
#define PC_MAX_BOOT_DEVICES 3
RTCState *s = rtc_state;
int nbds, bds[3] = { 0, };
int i;
nbds = strlen(boot_device);
if (nbds > PC_MAX_BOOT_DEVICES) {
term_printf("Too many boot devices for PC\n");
return(1);
}
for (i = 0; i < nbds; i++) {
bds[i] = boot_device2nibble(boot_device[i]);
if (bds[i] == 0) {
term_printf("Invalid boot device for PC: '%c'\n",
boot_device[i]);
return(1);
}
}
rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
rtc_set_memory(s, 0x38, (bds[2] << 4));
return(0);
}
/* hd_table must contain 4 block drivers */
static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
const char *boot_device, BlockDriverState **hd_table)
@ -713,6 +740,8 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size,
below_4g_mem_size = ram_size;
}
qemu_register_boot_set(pc_boot_set);
linux_boot = (kernel_filename != NULL);
/* init CPUs */