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-rw-r--r--src/soc/intel/xeon_sp/uncore.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c
index 380b7e7b9c..8729cf2540 100644
--- a/src/soc/intel/xeon_sp/uncore.c
+++ b/src/soc/intel/xeon_sp/uncore.c
@@ -196,6 +196,11 @@ static void mc_add_dram_resources(struct device *dev, int *res_count)
res = ram_from_to(dev, index++, top_of_ram, (uintptr_t)cbmem_top());
LOG_RESOURCE("cbmem_ram", dev, res);
+ /* Mark TSEG/SMM region as reserved */
+ res = reserved_ram_from_to(dev, index++, mc_values[TSEG_BASE_REG],
+ mc_values[TSEG_LIMIT_REG] + 1);
+ LOG_RESOURCE("mmio_tseg", dev, res);
+
/* Reserve DPR region */
union dpr_register dpr = { .raw = pci_read_config32(dev, VTD_LTDPR) };
if (dpr.size) {