From d20b43dfea1587b561aae17e4fa0f7407779d253 Mon Sep 17 00:00:00 2001 From: Bandan Das Date: Wed, 15 Jan 2014 10:11:06 -0700 Subject: vfio: warn if host device rom can't be read If the device rom can't be read, report an error to the user. This alerts the user that the device has a bad state that is causing rom read failure or option rom loading has been disabled from the device boot menu (among other reasons). Signed-off-by: Bandan Das Signed-off-by: Alex Williamson --- hw/misc/vfio.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'hw/misc') diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index ec9f41b98d..ef615fc28f 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -1125,6 +1125,13 @@ static void vfio_pci_load_rom(VFIODevice *vdev) vdev->rom_offset = reg_info.offset; if (!vdev->rom_size) { + error_report("vfio-pci: Cannot read device rom at " + "%04x:%02x:%02x.%x\n", + vdev->host.domain, vdev->host.bus, vdev->host.slot, + vdev->host.function); + error_printf("Device option ROM contents are probably invalid " + "(check dmesg).\nSkip option ROM probe with rombar=0, " + "or load from file with romfile=\n"); return; } -- cgit v1.2.1