[Xen-changelog] [xen-unstable] VT-d: warn on bogus RMRR entry

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1264073186 0
# Node ID 0bf9e66c5201dcde607a335fd332e4a35ae9e6bc
# Parent  ea02c95af3877af4b9c21c09366b338c5bc5f019
VT-d: warn on bogus RMRR entry

Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
---
 xen/drivers/passthrough/vtd/dmar.c |    6 ++++++
 1 files changed, 6 insertions(+)

diff -r ea02c95af387 -r 0bf9e66c5201 xen/drivers/passthrough/vtd/dmar.c
--- a/xen/drivers/passthrough/vtd/dmar.c        Thu Jan 21 09:13:46 2010 +0000
+++ b/xen/drivers/passthrough/vtd/dmar.c        Thu Jan 21 11:26:26 2010 +0000
@@ -453,7 +453,13 @@ acpi_parse_one_rmrr(struct acpi_dmar_ent
             f = PCI_FUNC(rmrru->scope.devices[i]);
 
             if ( pci_device_detect(b, d, f) == 0 )
+            {
+                dprintk(XENLOG_WARNING VTDPREFIX,
+                    "  Non-existent device (%x:%x.%x) is reported "
+                    "in RMRR (%"PRIx64", %"PRIx64")'s scope!\n",
+                    b, d, f, rmrru->base_address, rmrru->end_address);
                 ignore = 1;
+            }
             else
             {
                 ignore = 0;

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