diff options
Diffstat (limited to 'src/soc/intel/xeon_sp')
| -rw-r--r-- | src/soc/intel/xeon_sp/nb_acpi.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/soc/intel/xeon_sp/nb_acpi.c b/src/soc/intel/xeon_sp/nb_acpi.c index 4a4498080a..6d6eb00ea4 100644 --- a/src/soc/intel/xeon_sp/nb_acpi.c +++ b/src/soc/intel/xeon_sp/nb_acpi.c @@ -434,9 +434,15 @@ unsigned long northbridge_write_acpi_tables(const struct device *device, if (config->vtd_support) { current = ALIGN(current, 8); dmar = (acpi_dmar_t *)current; + enum dmar_flags flags = DMAR_INTR_REMAP; + + /* SKX FSP doesn't support X2APIC, but CPX FSP does */ + if (CONFIG(SOC_INTEL_SKYLAKE_SP)) + flags |= DMAR_X2APIC_OPT_OUT; + printk(BIOS_DEBUG, "ACPI: * DMAR\n"); - printk(BIOS_DEBUG, "[DMA Remapping table] Flags: 0x%x\n", DMAR_INTR_REMAP); - acpi_create_dmar(dmar, DMAR_INTR_REMAP, acpi_fill_dmar); + printk(BIOS_DEBUG, "[DMA Remapping table] Flags: 0x%x\n", flags); + acpi_create_dmar(dmar, flags, acpi_fill_dmar); current += dmar->header.length; current = acpi_align_current(current); acpi_add_table(rsdp, dmar); |