On Fri, Nov 10, 2017 at 3:11 PM, Stefan Berger <[email protected]> wrote: > This is a preparatory patch for the subsequent ones where we > get rid of the flexibility of supporting any kind of buffer size > that the backend may support. We keep the size at 4096, which is > also the size the external emulator supports. So, limit the size > of the buffer we can support and pass it back to the backend. > > Signed-off-by: Stefan Berger <[email protected]>
Reviewed-by: Marc-André Lureau <[email protected]> > --- > hw/tpm/tpm_tis.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c > index 69fe531..90c6df2 100644 > --- a/hw/tpm/tpm_tis.c > +++ b/hw/tpm/tpm_tis.c > @@ -1008,7 +1008,8 @@ static void tpm_tis_reset(DeviceState *dev) > int c; > > s->be_tpm_version = tpm_backend_get_tpm_version(s->be_driver); > - s->be_buffer_size = tpm_backend_get_buffer_size(s->be_driver); > + s->be_buffer_size = MIN(tpm_backend_get_buffer_size(s->be_driver), > + TPM_TIS_BUFFER_MAX); > > tpm_backend_reset(s->be_driver); > > @@ -1040,7 +1041,7 @@ static void tpm_tis_reset(DeviceState *dev) > tpm_tis_realloc_buffer(&s->loc[c].r_buffer, s->be_buffer_size); > } > > - tpm_tis_do_startup_tpm(s, 0); > + tpm_tis_do_startup_tpm(s, s->be_buffer_size); > } > > static const VMStateDescription vmstate_tpm_tis = { > -- > 2.5.5 > > -- Marc-André Lureau
