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Re: [Xen-devel] [v3 5/5] Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()




On 31/12/2014 00:03, Quan Xu wrote:
> make sure QEMU machine class is initialized and QEMU has registered
> Xen stubdom vTPM driver when call tpm_init()
> 
> Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
> ---
>  vl.c | 16 ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
> 
> diff --git a/vl.c b/vl.c
> index f6b3546..dd437e1 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -4114,12 +4114,6 @@ int main(int argc, char **argv, char **envp)
>          exit(1);
>      }
>  
> -#ifdef CONFIG_TPM
> -    if (tpm_init() < 0) {
> -        exit(1);
> -    }
> -#endif
> -
>      /* init the bluetooth world */
>      if (foreach_device_config(DEV_BT, bt_parse))
>          exit(1);
> @@ -4225,6 +4219,16 @@ int main(int argc, char **argv, char **envp)
>              exit(1);
>      }
>  
> +    /* For compatible with Xen stubdom vTPM driver, make
> +     * sure QEMU machine class is initialized and QEMU has
> +     * registered Xen stubdom vTPM driver ..
> +    */
> +#ifdef CONFIG_TPM
> +    if (tpm_init() < 0) {
> +        exit(1);
> +    }
> +#endif
> +
>      /* init generic devices */
>      if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 
> 1) != 0)
>          exit(1);
> 

This is okay.  I think the comment is not necessary, but Stefano can fix
that up if he agrees.

Paolo

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