From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Date: Thu, 21 Mar 2013 20:11:26 +0000 (-0400)
Subject: stubdom/vtpm: support multiple backends
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~7030
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22?a=commitdiff_plain;h=aa00660201c8e8b1079298f0f865e72724d34f67;p=xen.git

stubdom/vtpm: support multiple backends

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---

diff --git a/stubdom/vtpm/vtpm.c b/stubdom/vtpm/vtpm.c
index 10e74777b9..8f8095f5cc 100644
--- a/stubdom/vtpm/vtpm.c
+++ b/stubdom/vtpm/vtpm.c
@@ -141,8 +141,6 @@ int check_ordinal(tpmcmd_t* tpmcmd) {
 
 static void main_loop(void) {
    tpmcmd_t* tpmcmd = NULL;
-   domid_t domid;		/* Domid of frontend */
-   unsigned int handle;	/* handle of frontend */
    int res = -1;
 
    info("VTPM Initializing\n");
@@ -162,15 +160,7 @@ static void main_loop(void) {
       goto abort_postpcrs;
    }
 
-   /* Wait for the frontend domain to connect */
-   info("Waiting for frontend domain to connect..");
-   if(tpmback_wait_for_frontend_connect(&domid, &handle) == 0) {
-      info("VTPM attached to Frontend %u/%u", (unsigned int) domid, handle);
-   } else {
-      error("Unable to attach to a frontend");
-   }
-
-   tpmcmd = tpmback_req(domid, handle);
+   tpmcmd = tpmback_req_any();
    while(tpmcmd) {
       /* Handle the request */
       if(tpmcmd->req_len) {
@@ -194,7 +184,7 @@ static void main_loop(void) {
       tpmback_resp(tpmcmd);
 
       /* Wait for the next request */
-      tpmcmd = tpmback_req(domid, handle);
+      tpmcmd = tpmback_req_any();
 
    }