Commit d20b43df authored by Bandan Das's avatar Bandan Das Committed by Alex Williamson
Browse files

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: default avatarBandan Das <bsd@redhat.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 7c4228b4

hw/misc/vfio.c

+7 −0
Original line number Diff line number Diff line
@@ -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;

    }