From 92181f18298ff8c415354150414efb7195c1b620 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Thu, 21 Jan 2010 11:26:26 +0000 Subject: [PATCH] VT-d: warn on bogus RMRR entry Signed-off-by: Weidong Han --- xen/drivers/passthrough/vtd/dmar.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/drivers/passthrough/vtd/dmar.c b/xen/drivers/passthrough/vtd/dmar.c index 971100fe3e..9ae39a4cf9 100644 --- a/xen/drivers/passthrough/vtd/dmar.c +++ b/xen/drivers/passthrough/vtd/dmar.c @@ -453,7 +453,13 @@ acpi_parse_one_rmrr(struct acpi_dmar_entry_header *header) 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; -- 2.30.2