[Qemu-devel] How to get qemu log?

[Sam]

Hi all,

I add some log like this in QEMU_SRC/hw/i386/pc.c

+++ b/hw/i386/pc.c
>
> @@ -1364,6 +1364,13 @@ void pc_memory_init(PCMachineState *pcms,
>
>
>>      linux_boot = (machine->kernel_filename != NULL);
>
>
>> +    /* add for qemu start speed */
>
> +    time_t rawtime;
>
> +    struct tm * timeinfo;
>
> +    time ( &rawtime );
>
> +    timeinfo = localtime ( &rawtime );
>
> +    error_printf_unless_qmp("jpc_memory_init begin --
>> %s\n",asctime(timeinfo));
>
> +
>
>
Then I use `QEMU -D /qemu.log ...` command to start a vm, but I have seen
nothing in /qemu.log, I don't know why, and how to show my log while
starting qemu?

Thank you~