From: Ian Jackson <ian.jackson@eu.citrix.com>
Date: Thu, 28 Aug 2008 14:41:23 +0000 (+0100)
Subject: [passthrough] make upper field of 64 bit bar writable
X-Git-Tag: xen-3.3.1-rc1~7
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=5a0e49eea9f5c8b8b8184fe1a4a97c81c3c693f5;p=qemu-xen-3.3-testing.git

[passthrough] make upper field of 64 bit bar writable

This patch makes upper field of 64 bit base address register writable.

Signed-off-by: Yuji Shimada <shimada-yxb@necst.nec.co.jp>
(cherry picked from commit e13a9aa9ea1712d949771043bc2a51db64817244)
---

diff --git a/hw/pass-through.c b/hw/pass-through.c
index 9a521c39..77ab759a 100644
--- a/hw/pass-through.c
+++ b/hw/pass-through.c
@@ -2474,11 +2474,6 @@ static int pt_bar_reg_write(struct pt_dev *ptdev,
                 return -1;
         }
 
-        /* always keep the emulate register value to 0,
-         * because hvmloader does not support high MMIO for now.
-         */
-        cfg_entry->data = 0;
-
         /* never mapping the 'empty' upper region,
          * because we'll do it enough for the lower region.
          */