Re: [Xen-devel] [PATCH v3 1/7] vTPM: event channel bind interdomain with para/hvm virtual machine

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Mar 10, 2015 at 08:13:56AM -0400, Quan Xu wrote:
> Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
> ---
>  extras/mini-os/tpmback.c | 25 ++++++++++++++-----------

FYI mini-os now lives in a separate tree.

http://xenbits.xen.org/gitweb/?p=mini-os.git;a=summary


>  1 file changed, 14 insertions(+), 11 deletions(-)
> 
> diff --git a/extras/mini-os/tpmback.c b/extras/mini-os/tpmback.c
> index 00b66e8..8a0a983 100644
> --- a/extras/mini-os/tpmback.c
> +++ b/extras/mini-os/tpmback.c
> @@ -608,18 +608,21 @@ int connect_fe(tpmif_t* tpmif)
>     }
>     free(value);
>  
> -   domid = tpmif->domid;
> -   if((tpmif->page = gntmap_map_grant_refs(&gtpmdev.map, 1, &domid, 0, 
> &ringref, PROT_READ | PROT_WRITE)) == NULL) {
> -      TPMBACK_ERR("Failed to map grant reference %u/%u\n", (unsigned int) 
> tpmif->domid, tpmif->handle);
> -      return -1;
> -   }
> +    domid = (unsigned int)tpmif->domid;
> +    if ((tpmif->page = gntmap_map_grant_refs(&gtpmdev.map, 1, &domid, 0, 
> &ringref,
> +                                             PROT_READ | PROT_WRITE)) == 
> NULL) {
> +        TPMBACK_ERR("Failed to map grant reference %u/%u\n",
> +                    tpmif->domid, tpmif->handle);
> +        return -1;
> +    }
> +
> +    /* Bind the event channel */
> +    if ((evtchn_bind_interdomain(domid, evtchn, tpmback_handler, tpmif, 
> &tpmif->evtchn))) {
> +        TPMBACK_ERR("%u/%u Unable to bind to interdomain event channel!\n",
> +                    (unsigned int) tpmif->domid, tpmif->handle);
> +        goto error_post_map;
> +    }
>  
> -   /*Bind the event channel */
> -   if((evtchn_bind_interdomain(tpmif->domid, evtchn, tpmback_handler, tpmif, 
> &tpmif->evtchn)))
> -   {
> -      TPMBACK_ERR("%u/%u Unable to bind to interdomain event channel!\n", 
> (unsigned int) tpmif->domid, tpmif->handle);
> -      goto error_post_map;
> -   }
>     unmask_evtchn(tpmif->evtchn);
>  
>     /* Write the ready flag and change status to connected */
> -- 
> 1.8.3.2
> 
> 
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