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centralize handling of -icount 

A simple patch to place together all handling of -icount.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Paolo Bonzini 2010-03-10 11:38:48 +01:00 committed by Anthony Liguori
parent 972abbe03b
commit 4e3de9e954
1 changed files with 19 additions and 14 deletions
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33
vl.c
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@ -701,8 +701,23 @@ static void icount_adjust_vm(void * opaque)
icount_adjust();
}
static void init_icount_adjust(void)
static void configure_icount(const char *option)
{
if (!option)
return;
if (strcmp(option, "auto") != 0) {
icount_time_shift = strtol(option, NULL, 0);
use_icount = 1;
return;
}
use_icount = 2;
/* 125MIPS seems a reasonable initial guess at the guest speed.
It will be corrected fairly quickly anyway. */
icount_time_shift = 3;
/* Have both realtime and virtual time triggers for speed adjustment.
The realtime trigger catches emulated time passing too slowly,
the virtual time trigger catches emulated time passing too fast.
@ -4854,6 +4869,7 @@ int main(int argc, char **argv, char **envp)
uint32_t boot_devices_bitmap = 0;
int i;
int snapshot, linux_boot, net_boot;
const char *icount_option = NULL;
const char *initrd_filename;
const char *kernel_filename, *kernel_cmdline;
char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
@ -5618,12 +5634,7 @@ int main(int argc, char **argv, char **envp)
tb_size = 0;
break;
case QEMU_OPTION_icount:
use_icount = 1;
if (strcmp(optarg, "auto") == 0) {
icount_time_shift = -1;
} else {
icount_time_shift = strtol(optarg, NULL, 0);
}
icount_option = optarg;
break;
case QEMU_OPTION_incoming:
incoming = optarg;
@ -5870,13 +5881,7 @@ int main(int argc, char **argv, char **envp)
fprintf(stderr, "could not initialize alarm timer\n");
exit(1);
}
if (use_icount && icount_time_shift < 0) {
use_icount = 2;
/* 125MIPS seems a reasonable initial guess at the guest speed.
It will be corrected fairly quickly anyway. */
icount_time_shift = 3;
init_icount_adjust();
}
configure_icount(icount_option);
#ifdef _WIN32
socket_init();