Re: [Xen-devel] [Qemu-devel] [PATCH v4 5/5] Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init()

["Xu, Quan" <quan.xu@xxxxxxxxx>]

> -----Original Message-----
> From: Stefan Berger [mailto:stefanb@xxxxxxxxxxxxxxxxxx]
> Sent: Friday, March 20, 2015 7:26 PM
> To: Xu, Quan; stefano.stabellini@xxxxxxxxxxxxx; qemu-devel@xxxxxxxxxx;
> armbru@xxxxxxxxxx; lcapitulino@xxxxxxxxxx; aliguori@xxxxxxxxxx;
> pbonzini@xxxxxxxxxx; eblake@xxxxxxxxxx; kraxel@xxxxxxxxxx;
> meyering@xxxxxxxxxx; mjt@xxxxxxxxxx; sw@xxxxxxxxxxx; wei.liu2@xxxxxxxxxx
> Cc: xen-devel@xxxxxxxxxxxxx
> Subject: Re: [Qemu-devel] [PATCH v4 5/5] Qemu-Xen-vTPM: QEMU machine
> class is initialized before tpm_init()
> 
> On 03/10/2015 08:14 AM, 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 | 17 +++++++++++------
> >   1 file changed, 11 insertions(+), 6 deletions(-)
> >
> > diff --git a/vl.c b/vl.c
> > index f6b3546..0bbdaa1 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 +4219,17 @@ 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);
> Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>


Thanks Stefan.

Quan

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