From 9f0cf56683a0efcaa3cda67c534144d335f7ad2c Mon Sep 17 00:00:00 2001 From: Daniel De Graaf Date: Thu, 21 Mar 2013 16:11:22 -0400 Subject: mini-os/tpmback: add tpmback_get_peercontext This allows the XSM label of the TPM's client domain to be retrieved. Signed-off-by: Daniel De Graaf Acked-by: Samuel Thibault --- extras/mini-os/tpmback.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'extras/mini-os/tpmback.c') diff --git a/extras/mini-os/tpmback.c b/extras/mini-os/tpmback.c index 21dd20606f..43e840d910 100644 --- a/extras/mini-os/tpmback.c +++ b/extras/mini-os/tpmback.c @@ -830,6 +830,17 @@ unsigned char* tpmback_get_uuid(domid_t domid, unsigned int handle) return tpmif->uuid; } +int tpmback_get_peercontext(domid_t domid, unsigned int handle, void* buffer, int buflen) +{ + tpmif_t* tpmif; + if((tpmif = get_tpmif(domid, handle)) == NULL) { + TPMBACK_DEBUG("get_uuid() failed, %u/%u is an invalid frontend\n", (unsigned int) domid, handle); + return -1; + } + + return evtchn_get_peercontext(tpmif->evtchn, buffer, buflen); +} + static void event_listener(void) { const char* bepath = "backend/vtpm"; -- cgit v1.2.3