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authorKeir Fraser <keir.fraser@citrix.com>2009-09-07 13:52:48 +0100
committerKeir Fraser <keir.fraser@citrix.com>2009-09-07 13:52:48 +0100
commitf703973da4198aebaadb0b3aa7fd66223c137ffc (patch)
treef77ce1d08a1a3613242f4231029eab0a0734d058 /tools/examples
parent8b4225a532d32d893f6a3cecbabedb0d551d879b (diff)
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xend: passthrough: add an option pci-passthrough-strict-check
Currently when assigning device to HVM guest, we use the strict check for HVM guest by default.(For PV guest we use loose check automatically if necessary.) When we assign device to HVM guest, if we meet with the co-assignment issues or the ACS issue (see changeset 20081: 4a517458406f), we could try changing the option to 'no' -- however, we have to realize this may incur security issue and we can't make sure the device assignment could really work properly even after we do this. The option is located in /etc/xen/xend-config.sxp: (pci-passthrough-strict-check yes) Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Diffstat (limited to 'tools/examples')
-rw-r--r--tools/examples/xend-config.sxp7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/examples/xend-config.sxp b/tools/examples/xend-config.sxp
index 283949e29c..6c6dd2e253 100644
--- a/tools/examples/xend-config.sxp
+++ b/tools/examples/xend-config.sxp
@@ -260,3 +260,10 @@
#(device-create-timeout 100)
#(device-destroy-timeout 100)
+# When assigning device to HVM guest, we use the strict check for HVM guest by
+# default. (For PV guest, we use loose check automatically if necessary.)
+# When we assign device to HVM guest, if we meet with the co-assignment
+# issues or the ACS issue, we could try changing the option to 'no' -- however,
+# we have to realize this may incur security issue and we can't make sure the
+# device assignment could really work properly even after we do this.
+#(pci-passthrough-strict-check yes)