diff options
| -rw-r--r-- | src/soc/intel/apollolake/systemagent.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/systemagent.c b/src/soc/intel/apollolake/systemagent.c index c8f1330e78..fd9108208c 100644 --- a/src/soc/intel/apollolake/systemagent.c +++ b/src/soc/intel/apollolake/systemagent.c @@ -4,6 +4,7 @@ * Copyright (C) 2015 Intel Corp. * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.) * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.) + * Copyright (C) 2019 Siemens AG * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,6 +20,7 @@ #include <cpu/cpu.h> #include <console/console.h> #include <device/device.h> +#include <device/pci_ops.h> #include <fsp/util.h> #include <intelblocks/systemagent.h> #include <soc/iomap.h> @@ -40,6 +42,24 @@ void soc_add_fixed_mmio_resources(struct device *dev, int *index) sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources, ARRAY_SIZE(soc_fixed_resources)); + + /* Add VTd resources if VTd is enabled. These resources were + set up by the FSP-S call. */ + if ((pci_read_config32(dev, CAPID0_A) & VTD_DISABLE)) + return; + + if (MCHBAR32(GFXVTBAR) & VTBAR_ENABLED) { + mmio_resource(dev, *index, + (MCHBAR64(GFXVTBAR) & VTBAR_MASK) / KiB, + VTBAR_SIZE / KiB); + (*index)++; + } + if (MCHBAR32(DEFVTBAR) & VTBAR_ENABLED) { + mmio_resource(dev, *index, + (MCHBAR64(DEFVTBAR) & VTBAR_MASK) / KiB, + VTBAR_SIZE / KiB); + (*index)++; + } } int soc_get_uncore_prmmr_base_and_mask(uint64_t *prmrr_base, |