svn commit: r306074 - head/sys/dev/hyperv/vmbus
Sepherosa Ziehau
sephe at FreeBSD.org
Wed Sep 21 06:43:53 UTC 2016
Author: sephe
Date: Wed Sep 21 06:43:52 2016
New Revision: 306074
URL: https://svnweb.freebsd.org/changeset/base/306074
Log:
hyperv/vmbus: Assert that the bufring address is page aligned.
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7962
Modified:
head/sys/dev/hyperv/vmbus/vmbus_chan.c
Modified: head/sys/dev/hyperv/vmbus/vmbus_chan.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus_chan.c Wed Sep 21 06:27:42 2016 (r306073)
+++ head/sys/dev/hyperv/vmbus/vmbus_chan.c Wed Sep 21 06:43:52 2016 (r306074)
@@ -250,6 +250,8 @@ vmbus_chan_open_br(struct vmbus_channel
("send bufring size is not multiple page"));
KASSERT((rxbr_size & PAGE_MASK) == 0,
("recv bufring size is not multiple page"));
+ KASSERT((cbr->cbr_paddr & PAGE_MASK) == 0,
+ ("bufring is not page aligned"));
/*
* Zero out the TX/RX bufrings, in case that they were used before.
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